---------------------------
OMB APPROVAL
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OMB Number: 3235-0145
Expires: October 31, 1994
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----------------------------
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 1)
Summit Medical Systems, Inc.
----------------------------
(Name of Issuer)
Common Stock, $.01 par value
------------------------------
(Title of Class of Securities)
86613P10
--------------
(CUSIP Number)
*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 2 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Catalyst Ventures, Limited Partnership |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | Maryland Limited Partnership |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 1,065,414 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 1,065,414 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 1,065,414 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 11.4% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | PN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 3 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | New Enterprise Associates IV, Limited Partnership |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | Delaware Limited Partnership |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 1,065,414 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 1,065,414 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 1,065,414 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 11.4% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | PN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 4 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | NEA Partners IV, Limited Partnership |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | Delaware Limited Partnership |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 1,065,414 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 1,065,414 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 1,065,414 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 11.4% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | PN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 5 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Calvert Capital L.P. |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | Maryland Limited Partnership |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | less than 5% |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | less than 5% |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | less than 5% |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | less than 5% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | PN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 6 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | New Enterprise Associates VI, Limited Partnership |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | Delaware Limited Partnership |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 1,065,414 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 1,065,414 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 1,065,414 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 11.4% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | PN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 7 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | NEA Partners VI, Limited Partnership |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | Delaware Limited Partnership |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 1,065,414 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 1,065,414 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 1,065,414 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 11.4% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | PN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 8 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Edward T. Anderson |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | less than 5% |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | less than 5% |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | less than 5% |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | less than 5% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | IN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 9 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Peter J. Barris |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 653,333 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 653,333 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 653,333 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 7.0% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | IN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 10 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Cornelius C. Bond, Jr. |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | less than 5% |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | less than 5% |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | less than 5% |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | less than 5% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | IN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 11 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Frank A. Bonsal, Jr. |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 1,065,414 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 1,065,414 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 1,065,414 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 11.4% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | IN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 12 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Nancy L. Dorman |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 1,065,414 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 1,065,414 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 1,065,414 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 11.4% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | IN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 13 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Bruns Grayson |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | less than 5% |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | less than 5% |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | less than 5% |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | less than 5% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | IN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 14 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Ronald Kase |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 2,666 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 653,333 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 2,666 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 653,333 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 655,999 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 7.0% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | IN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 15 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | C. Richard Kramlich |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 205 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 1,065,414 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 205 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 1,065,414 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 1,065,619 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 11.4% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | IN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 16 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Arthur J. Marks |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 1,065,414 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 1,065,414 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 1,065,414 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 11.4% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | IN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 17 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Thomas C. McConnell |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 1,065,414 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 1,065,414 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 1,065,414 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 11.4% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | IN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 18 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | John M. Nehra |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 36,311 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 1,065,414 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 36,311 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 1,065,414 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 1,101,725 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 11.8% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 19 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Charles W. Newhall III |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 164 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | 1,065,414 shares |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 164 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | 1,065,414 shares |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 1,065,578 shares |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | 11.4% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | IN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ------------------------- ---------------------------
|CUSIP NO. 86613P10 | 13G | Page 20 of 35 Pages |
| ----------- | | --- --- |
- ------------------------- ---------------------------
|--------|---------------------------------------------------------------------|
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Robert Walkingshaw |
|--------|---------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | (b) [ ] |
| | |
|--------|---------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|--------|---------------------------------------------------------------------|
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|--------|-----------------|--------|------------------------------------------|
| | 5 | SOLE VOTING POWER |
| | | 0 shares |
| NUMBER OF |--------| -----------------------------------------|
| SHARES | 6 | SHARED VOTING POWER |
| BENEFICIALLY | | less than 5% |
| OWNED BY ----------------------------------------------------|
| EACH | 7 | SOLE DISPOSITIVE POWER |
| REPORTING | | 0 shares |
| PERSON ----------------------------------------------------|
| WITH | 8 | SHARED DISPOSITIVE POWER |
| | | less than 5% |
|--------|---------------------------------------------------------------------|
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | less than 5% |
|--------|- -------------------------------------------------------------------|
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN [ ] |
| | SHARES* |
| | |
|--------|- -------------------------------------------------------------------|
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| | less than 5% |
|--------|- -------------------------------------------------------------------|
| 12 | TYPE OF REPORTING PERSON * |
| | IN |
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
Item 1(a). Name of Issuer: Summit Medical Systems, Inc.
--------------
Item 1(b). Address of Issuer's Principal Executive Offices:
-----------------------------------------------
One Carlson Parkway, Suite 120, Minneapolis, MN 55447.
Item 2(a). Name of Persons Filing:
----------------------
Catalyst Ventures, Limited Partnership ("Catalyst"), Calvert Capital
L.P. ("Calvert"), which is a general partner of Catalyst, New
Enterprise Associates IV, Limited Partnership ("NEA IV"), which is a
general partner of Catalyst, NEA Partners IV, Limited Partnership
("NEA Partners IV"), which is the sole general partner of NEA IV, New
Enterprise Associates VI, Limited Partnership ("NEA VI"), NEA Partners
VI, Limited Partnership ("NEA Partners VI"), which is the sole general
partner of NEA VI, and Edward T. Anderson ("Anderson"), Peter J.
Barris ("Barris"), Cornelius C. Bond, Jr. ("Bond"), Frank A. Bonsal,
Jr. ("Bonsal"), Nancy L. Dorman ("Dorman"), Bruns Grayson ("Grayson"),
Ronald Kase ("Kase"), C. Richard Kramlich ("Kramlich"), Arthur J.
Marks ("Marks"), Thomas C. McConnell ("McConnell"), John M. Nehra
("Nehra"), Charles W. Newhall III ("Newhall") and Robert Walkingshaw
("Walkingshaw") (the "General Partners"). Nehra is a general partner
of Catalyst. Anderson, Grayson and Walkingshaw are individual general
partners of Calvert. Bond, Bonsal, Dorman, Kramlich, Marks, McConnell
and Newhall are the individual general partners of NEA Partners IV.
Barris, Bonsal, Dorman, Kase, Kramlich, Marks, McConnell, Nehra and
Newhall are the individual general partners of NEA Partners VI. The
persons named in this paragraph are referred to individually herein as
a "Reporting Person" and collectively as the "Reporting Persons."
Item 2(b). Address of Principal Business Office or, if None, Residence:
------------------------------------------------------------
The address of the principal business office of Catalyst, NEA IV, NEA
Partners IV, NEA VI, NEA Partners VI, Barris, Bonsal, Dorman, Marks,
Nehra and Newhall is New Enterprise Associates, 1119 St. Paul Street,
Baltimore, Maryland 21202. The address of the principal business
office of Bond, Kase, Kramlich and McConnell is New Enterprise
Associates, 2490 Sand Hill Road, Menlo Park, California 94025. The
address of the principal business office of Calvert and Grayson is One
South Street, Suite 2150, Baltimore, Maryland 21202. The address of
the principal business office of Anderson and Walkingshaw is North
Bridge Venture Partners, 404 Wyman Street, Suite 365, Waltham, MA
02154.
Item 2(c). Citizenship:
-----------
Each of NEA IV, NEA Partners IV, NEA VI and NEA Partners VI is a
limited partnership organized under the laws of the State of Delaware.
Each of Catalyst and Calvert is a limited partnership organized under
the laws of the State of Maryland. Each of the General Partners is a
United States citizen.
Item 2(d). Title of Class of Securities:
----------------------------
Common Stock, $.01 par value (the "Common Stock").
Item 2(e). CUSIP Number: 86613P10
------------
Item 3. If this statement is filed pursuant to Rules 13d-1(b), or 13d-2(b),
-------------------------------------------------------------------
check whether the person filing is a:
-------------------------------------
(a) [ ] Broker or Dealer registered under Section 15 of the
Securities Exchange Act of 1934 (the "Act").
(b) [ ] Bank as defined in Section 3(a)(6) of the Act.
Page 21 of 35 Pages
<PAGE>
(c) [ ] Insurance Company as defined in Section 3(a) (19) of the Act.
(d) [ ] Investment Company registered under Section 8 of the
Investment Company Act of 1940.
(e) [ ] Investment Adviser registered under Section 203 of the
Investment Advisers Act of 1940.
(f) [ ] Employee Benefit Plan, Pension Fund which is subject to the
provisions of the Employee Retirement Income Security Act of
1974 or Endowment Fund; see Rule 13d-1(b)(1)(ii)(F) of the
Act.
(g) [ ] Parent Holding Company, in accordance with Rule
13d-1(b)(ii)(G) of the Act.
(h) [ ] Group, in accordance with Rule 13d- 1(b)(1)(ii)(H) of the
Act.
Not applicable. The original Schedule 13G filed by the Reporting
Persons relating to the Common Stock was not filed pursuant to Rule
13d-1(b).
Item 4. Ownership.
----------
(a) Amount Beneficially Owned: Catalyst is the record owner of
412,081 shares of Common Stock as of December 31, 1996 (the
"Catalyst Shares"). NEA VI is the record owner of 653,333 shares
of Common Stock as of December 31, 1996 (the "NEA VI Shares"). As
a general partner of Catalyst, NEA IV may be deemed to own
beneficially the Catalyst Shares. As the sole general partner of
NEA IV, which is a general partner of Catalyst, NEA Partners IV
may be deemed to own beneficially the Catalyst Shares. As the
sole general partner of NEA VI, NEA Partners VI may be deemed to
own beneficially the NEA VI Shares. By virtue of their
relationship as affiliated limited partnerships, certain of whose
general partners share some of the same individual general
partners, each of Catalyst and NEA VI, their general partners,
NEA IV and NEA Partners VI, respectively, and NEA Partners IV,
the sole general partner of NEA IV, which is a general partner of
Catalyst, may be deemed to own beneficially both the Catalyst
Shares and the NEA VI Shares, for a total of 1,065,414 shares.
As the general partners of NEA Partners IV, the sole general
partner of NEA IV, which is a general partner of Catalyst, and
NEA Partners VI, the sole general partner of NEA VI, each of
Bonsal, Dorman, Marks and McConnell may also be deemed to own
beneficially the Catalyst Shares and the NEA VI Shares, for a
total of 1,065,414 shares. Nehra is the record owner of 1,647
shares as of December 31, 1996 and holds options to purchase an
aggregate of 34,664 shares, which are exercisable within 60 days
after December 31, 1996, for a total of 36,311 shares. As a
general partner of Catalyst and NEA Partners VI, the sole general
partner of NEA VI, and the beneficial owner of the 36,311 shares
Nehra may be deemed to own beneficially the Catalyst Shares, the
NEA VI Shares and the 36,311 shares, for a total of 1,101,725
shares. As
Page 22 of 35 Pages
<PAGE>
a general partner of NEA Partners VI, the sole general partner of
NEA VI, Barris may be deemed to own beneficially the NEA VI
Shares. Kase is the record owner of 2,666 shares as of December
31, 1996. As a general partner of NEA Partners VI, the sole
general partner of NEA VI, and the record owner of 2,666 shares,
Kase may be deemed to own beneficially the NEA VI Shares and the
2,666 shares, for a total of 655,999 shares. Kramlich is the
record owner of 205 shares as of December 31, 1996. As a general
partner of NEA Partners IV, the sole general partner of NEA IV,
which is a general partner of Catalyst, and NEA Partners VI, the
sole general partner of NEA VI, and the record owner of 205
shares, Kramlich may be deemed to own beneficially the Catalyst
Shares, the NEA VI Shares and the 205 shares, for a total of
1,065,619. Newhall is the record owner of 164 shares as of
December 31, 1996. As a general partner of NEA Partners IV, the
sole general partner of NEA IV, which is a general partner of
Catalyst, and NEA Partners VI, the sole general partner of NEA
VI, and the record owner of 164 shares, Newhall may be deemed to
own beneficially the Catalyst Shares, the NEA VI Shares and the
164 shares, for a total of 1,065,578 shares.
(b) Percent of Class: Catalyst, NEA IV, NEA VI, NEA Partners IV, NEA
Partners VI, Bonsal, Dorman, Kramlich, Marks, McConnell and
Newhall: 11.4%. Nehra: 11.8% Barris and Kase: 7.0%. Calvert,
Anderson, Bond, Grayson and Walkingshaw: Less than 5%. The
foregoing percentages are calculated based on the 9,335,638
shares of Common Stock reported to be outstanding in the
Quarterly Report on Form 10-Q of Summit Medical Systems, Inc. for
the quarter ended September 30, 1996, as adjusted pursuant to
Rule 13d-3(d)(1).
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote: 0 shares for each
Reporting Person other than Kase, Kramlich, Newhall and
Nehra. 2,666 shares for Kase. 205 shares for Kramlich. 164
shares for Newhall. 36,311 shares for Nehra.
(ii) shared power to vote or to direct the vote: 1,065,414 shares
for each Reporting Person, except Calvert, Barris, Kase,
Anderson, Bond, Grayson and Walkingshaw. 653,333 shares for
Barris and Kase. Less than 5% for Calvert, Anderson, Bond,
Grayson and Walkingshaw.
(iii) sole power to dispose or to direct the disposition of: 0
shares for each Reporting Person other than Kase, Kramlich,
Newhall and Nehra. 2,666 shares for Kase. 205 shares for
Kramlich. 164 shares for Newhall. 36,311 shares for Nehra.
(iv) shared power to dispose or to direct the disposition of:
1,065,414 shares for each Reporting Person, except Calvert,
Barris, Kase, Anderson, Bond, Grayson and Walkingshaw.
653,333 shares for Barris and Kase. Less than 5% for
Calvert, Anderson, Bond, Grayson and Walkingshaw.
Each Reporting Person expressly disclaims beneficial ownership of any
shares of Common Stock of Summit Medical Systems, Inc., except for the
shares, if any, that such Reporting Person owns of record.
Page 23 of 35 Pages
<PAGE>
Item 5. Ownership of Five Percent or Less of a Class.
---------------------------------------------
Each of Calvert, Anderson, Bond, Grayson and Walkingshaw has ceased to
own beneficially more than five percent of the Common Stock of Summit
Medical Systems. [X]
Item 6. Ownership of More than Five Percent on Behalf of Another Person.
----------------------------------------------------------------
Not applicable.
Item 7. Identification and Classification of the Subsidiary Which Acquired the
Security Being Reported on by the Parent Holding Company.
-----------------------------------------------------------------------
Not applicable.
Item 8. Identification and Classification of Members of the Group.
----------------------------------------------------------
Not applicable. The Reporting Persons expressly disclaim membership in
a "group" as used in Rule 13d-1(b)(ii)(H).
Item 9. Notice of Dissolution of Group.
-------------------------------
Not applicable.
Item 10. Certification.
--------------
Not applicable. This statement on Schedule 13G is not filed pursuant
to Rule 13d-1(b).
Page 24 of 35 Pages
<PAGE>
SIGNATURE
---------
After reasonable inquiry and to the best of its knowledge and belief, each
of the undersigned certifies that the information set forth in this statement is
true, complete and correct.
Date: February 10, 1997
CATALYST VENTURES, LIMITED PARTNERSHIP
By: NEW ENTERPRISE ASSOCIATES IV,
LIMITED PARTNERSHIP
By: NEA Partners IV, Limited Partnership
By: *
-------------------------------
Charles W. Newhall III
General Partner
NEW ENTERPRISE ASSOCIATES IV,
LIMITED PARTNERSHIP
By: NEA Partners IV, Limited Partnership
By: *
-------------------------------
Charles W. Newhall III
General Partner
NEA PARTNERS IV, LIMITED PARTNERSHIP
By *
-------------------------------
Charles W. Newhall III
General Partner
CALVERT CAPITAL L.P.
By **
-------------------------------
Bruns Grayson
General Partner
NEW ENTERPRISE ASSOCIATES VI,
LIMITED PARTNERSHIP
By: NEA Partners VI, Limited Partnership
By *
-------------------------------
Charles W. Newhall III
General Partner
Page 25 of 35 Pages
<PAGE>
NEA PARTNERS VI, LIMITED PARTNERSHIP
By: *
-------------------------------
Charles W. Newhall III
General Partner
**
- ----------------------------
Edward T. Anderson
*
- ----------------------------
Peter J. Barris
*
- ----------------------------
Cornelius C. Bond, Jr.
**
- ----------------------------
Bruns Grayson
*
- ----------------------------
John M. Nehra
*
- ----------------------------
Frank A. Bonsal, Jr.
**
- ----------------------------
C. Richard Kramlich
*
- ----------------------------
Arthur J. Marks
*
- ----------------------------
Thomas C. McConnell
*
- ----------------------------
Charles W. Newhall III
**
- ----------------------------
Robert Walkingshaw
*
- ----------------------------
Ronald Kase
Page 26 of 35 Pages
<PAGE>
*/s/ Nancy L. Dorman
-----------------------------------------
Nancy L. Dorman
on her own behalf and as Attorney-in-Fact
**/s/ Susan J. Adams
-----------------------------------------
Susan J. Adams
Attorney-in-Fact
- --------------------------------------------------------------------------------
*This Schedule 13G was executed by Nancy L. Dorman pursuant to Powers of
Attorney filed with the Securities and Exchange Commission on February 13, 1992
in connection with a Schedule 13G for Advanced Interventional Systems Inc. and
on February 13, 1995 in connection with a Schedule 13G for Acuity Imaging, Inc.,
which Powers of Attorney are incorporated herein by reference and copies of
which are attached hereto as Exhibit 2.
**This Schedule 13G was executed by Susan J. Adams pursuant to a Power of
Attorney, which is attached hereto and filed herewith as Exhibit 3.
Page 27 of 35 Pages
<PAGE>
EXHIBIT 1
---------
AGREEMENT
Pursuant to Rule 13d-1(f)(1) under the Securities Exchange Act of 1934, the
undersigned hereby agree that only one statement containing the information
required by Schedule 13G need be filed with respect to the ownership by each of
the undersigned of shares of stock of Summit Medical Systems, Inc.
EXECUTED this 10th day of February, 1997.
CATALYST VENTURES, LIMITED PARTNERSHIP
By: NEW ENTERPRISE ASSOCIATES IV,
LIMITED PARTNERSHIP
By: NEA Partners IV, Limited Partnership
By: *
--------------------------------
Charles W. Newhall III
General Partner
NEW ENTERPRISE ASSOCIATES IV,
LIMITED PARTNERSHIP
By: NEA Partners IV, Limited Partnership
By: *
--------------------------------
Charles W. Newhall III
General Partner
NEA PARTNERS IV, LIMITED PARTNERSHIP
By: *
--------------------------------
Charles W. Newhall III
General Partner
CALVERT CAPITAL L.P.
By: **
--------------------------------
Bruns Grayson
General Partner
NEW ENTERPRISE ASSOCIATES VI,
LIMITED PARTNERSHIP
By: NEA Partners VI, Limited Partnership
By: *
--------------------------------
Charles W. Newhall III,
General Partner
Page 28 of 35 Pages
<PAGE>
NEA PARTNERS VI, LIMITED PARTNERSHIP
By: *
--------------------------------
Charles W. Newhall III
General Partner
**
- --------------------------------
Edward T. Anderson
*
- --------------------------------
Peter J. Barris
*
- --------------------------------
Cornelius C. Bond, Jr.
**
- --------------------------------
Bruns Grayson
*
- --------------------------------
John M. Nehra
*
- --------------------------------
Frank A. Bonsal, Jr.
*
- --------------------------------
C. Richard Kramlich
*
- --------------------------------
Arthur J. Marks
*
- --------------------------------
Thomas C. McConnell
*
- --------------------------------
Charles W. Newhall III
**
- --------------------------------
Robert Walkingshaw
*
- --------------------------------
Ronald Kase
Page 29 of 35 Pages
<PAGE>
* /s/ Nancy L. Dorman
------------------------------------------
Nancy L. Dorman
on her own behalf and as Attorney-in-Fact
** /s/ Susan J. Adams
------------------------------------------
Susan J. Adams
Attorney-in-Fact
- --------------------------------------------------------------------------------
*This Agreement was executed by Nancy L. Dorman pursuant to Powers of Attorney
filed with the Securities and Exchange Commission on February 13, 1992 in
connection with a Schedule 13G for Advanced Interventional Systems Inc. and on
February 13, 1995 in connection with a Schedule 13G for Acuity Imaging, Inc.,
which Powers of Attorney are incorporated herein by reference and copies of
which are attached hereto as Exhibit 2.
**This Agreement was executed by Susan J. Adams pursuant to a Power of Attorney,
which is attached hereto and filed herewith as Exhibit 3.
Page 30 of 35 Pages
<PAGE>
Exhibit 2
---------
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below hereby constitutes and appoints Nancy L. Dorman and Charles W. Newhall
III, and each of them, with full power to act without the other, his true and
lawful attorney-in-fact, with full power of substitution, to sign any and all
instruments, certificates and documents that may be necessary, desirable or
appropriate to be executed on behalf of himself as an individual or in his
capacity as a general partner of any partnership, pursuant to section 13 or 16
of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and any
and all regulations promulgated thereunder, and to file the same, with all
exhibits thereto, and any other documents in connection therewith, with the
Securities and Exchange Commission, and with any other entity when and if such
is mandated by the Exchange Act or by the Bylaws of the National Association of
Securities Dealers, Inc., granting unto said attorney-in-fact full power and
authority to do and perform each and every act and thing necessary, desirable or
appropriate, fully to all intents and purposes as he might or could do in
person, thereby ratifying and confirming all that said attorney-in-fact, or his
substitutes, may lawfully do or cause to be done by virtue hereof.
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 23rd
day of April, 1991.
/s/ Raymond L. Bank
----------------------------
Raymond L. Bank
/s/ Thomas R. Baruch
----------------------------
Thomas R. Baruch
/s/ Cornelius C. Bond, Jr.
----------------------------
Cornelius C. Bond, Jr.
/s/ Frank A. Bonsal, Jr.
----------------------------
Frank A. Bonsal, Jr.
/s/ James A. Cole
----------------------------
James A. Cole
Page 31 of 35 Pages
<PAGE>
/s/ Nancy L. Dorman
----------------------------
Nancy L. Dorman
/s/ Neal M. Douglas
----------------------------
Neal M. Douglas
/s/ John W. Glynn, Jr.
----------------------------
John W. Glynn, Jr.
/s/ Curran W. Harvey
----------------------------
Curran W. Harvey
/s/ Ronald Kase
----------------------------
Ronald Kase
/s/ C. Richard Kramlich
----------------------------
C. Richard Kramlich
/s/ Robert F. Kuhling
----------------------------
Robert F. Kuhling
/s/ Arthur J. Marks
----------------------------
Arthur J. Marks
/s/ Thomas C. McConnell
----------------------------
Thomas C. McConnell
/s/ Donald L. Murfin
----------------------------
Donald L. Murfin
/s/ H. Leland Murphy
----------------------------
H. Leland Murphy
Page 32 of 35 Pages
<PAGE>
/s/ John M. Nehra
----------------------------
John M. Nehra
/s/ Charles W. Newhall III
----------------------------
Charles W. Newhall III
/s/ Terry L. Opdendyk
----------------------------
Terry L. Opdendyk
/s/ Barbara J. Perrier
----------------------------
Barbara J. Perrier
/s/ C. Vincent Prothro
----------------------------
C. Vincent Prothro
/s/ C. Woodrow Rea, Jr.
----------------------------
C. Woodrow Rea, Jr.
/s/ Howard D. Wolfe, Jr.
----------------------------
Howard D. Wolfe, Jr.
/s/ Nora M. Zietz
----------------------------
Nora M. Zietz
Page 33 of 35 Pages
<PAGE>
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below hereby constitutes and appoints Nancy L. Dorman and Charles W. Newhall
III, and each of them, with full power to act without the other, his true and
lawful attorney-in-fact, with full power of substitution, to sign any and all
instruments, certificates and documents that may be necessary, desirable or
appropriate to be executed on behalf of himself as an individual or in his
capacity as a general partner of any partnership, pursuant to section 13 or 16
of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and any
and all regulations promulgated thereunder, and to file the same, with all
exhibits thereto, and any other documents in connection therewith, with the
Securities and Exchange Commission, and with any other entity when and if such
is mandated by the Exchange Act or by the Bylaws of the National Association of
Securities Dealers, Inc., granting unto said attorney-in-fact full power and
authority to do and perform each and every act and thing necessary, desirable or
appropriate, fully to all intents and purposes as he might or could do in
person, thereby ratifying and confirming all that said attorney-in-fact, or his
substitutes, may lawfully do or cause to be done by virtue hereof.
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 1st
day of January, 1994.
/s/ Peter J. Barris
--------------------------
Peter J. Barris
/s/ Debra E. King
--------------------------
Debra E. King
/s/ Peter T. Morris
--------------------------
Peter T. Morris
/s/ Hugh Y. Rienhoff, Jr.
--------------------------
Hugh Y. Rienhoff, Jr.
/s/ Alexander Slusky
--------------------------
Alexander Slusky
/s/ Louis B. Van Dyck
--------------------------
Louis B. Van Dyck
Page 34 of 35 Pages
<PAGE>
Exhibit 3
---------
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below hereby constitutes and appoints Susan J. Adams his true and lawful
attorney-in-fact, with full power of substitution, to sign any and all
instruments, certificates and documents that may be necessary, desirable or
appropriate to be executed on behalf of himself as an individual or in his
capacity as a general partner of any partnership, pursuant to section 13 or 16
of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and any
and all regulations promulgated thereunder, and to file the same, with all
exhibits thereto, and any other documents in connection therewith, with the
Securities and Exchange Commission, and with any other entity when and if such
is mandated by the Exchange Act or by the Bylaws of the National Association of
Securities Dealers, Inc., granting unto said attorney-in-fact full power and
authority to do and perform each and every act and thing necessary, desirable or
appropriate, fully to all intents and purposes as he might or could do in
person, thereby ratifying and confirming all that said attorney-in-fact, or his
substitutes, may lawfully do or cause to be done by virtue hereof.
IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 10th
day of February, 1997.
/s/ Edward T. Anderson
---------------------------
Edward T. Anderson
/s/ Bruns H. Grayson
---------------------------
Bruns H. Grayson
/s/ Robert Walkingshaw
---------------------------
Robert Walkingshaw
Page 35 of 35 Pages
