<PAGE>
THIS DOCUMENT IS A COPY OF THE 13G/A
PREVIOUSLY FILED ON FEBRUARY 18, 1997
PURSUANT TO A RULE 201 TEMPORARY
HARDSHIP EXEMPTION.
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. One)*
Perclose, Inc.
----------------------------------
(Name of Issuer)
Common Stock
----------------------------------
(Title of Class of Securities)
71361C 10 7
----------------------------------
(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 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).
(Continued on following page(s))
Page 1 of 5 Pages
---
<PAGE>
CUSIP No. 71361C 10 7 13G Page 2 of 5 Pages
--------- --- ---
- -------------------------------------------------------------------------------
(1) Names of Reporting Persons. S.S. or I.R.S. Identification Nos. of Above
Persons
John B. Simpson, M.D., Ph.D.
- -------------------------------------------------------------------------------
(2) Check the Appropriate Box if a Member (a) / /
of a Group* (b) / /
- -------------------------------------------------------------------------------
(3) SEC Use Only
- -------------------------------------------------------------------------------
(4) Citizenship or Place of Organization
United States
- -------------------------------------------------------------------------------
Number of Shares (5) Sole Voting Power
Beneficially 50,000
Owned by --------------------------------------------------
Each Reporting (6) Shared Voting Power
Person With 1,828,144
--------------------------------------------------
(7) Sole Dispositive Power
50,000
--------------------------------------------------
(8) Shared Dispositive Power
1,828,144
- -------------------------------------------------------------------------------
(9) Aggregate Amount Beneficially Owned by Each Reporting Person
1,878,144
- -------------------------------------------------------------------------------
(10) Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares*
Excludes an aggregate of 150,000 shares (see Item 4)
- -------------------------------------------------------------------------------
(11) Percent of Class Represented by Amount in Row (9)
19.7%
- -------------------------------------------------------------------------------
(12) Type of Reporting Person*
IN
- -------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
<PAGE>
CUSIP No. 71361C 10 7 13G Page 3 of 5 Pages
--------- --- ---
ITEM 1(A). NAME OF ISSUER
Perclose, Inc.
- -------------------------------------------------------------------------------
ITEM 1(B). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES
199 Jefferson Drive
Menlo Park, CA 94025
- -------------------------------------------------------------------------------
ITEM 2(A). NAME OF PERSON(S) FILING
John B. Simpson, M.D., Ph.D.
- -------------------------------------------------------------------------------
ITEM 2(B). ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE
309 Manuella Road
Woodside, CA 95062
USA
- -------------------------------------------------------------------------------
ITEM 2(C). CITIZENSHIP
USA
- -------------------------------------------------------------------------------
ITEM 2(D). TITLE OF CLASS OF SECURITIES
Common Stock
- -------------------------------------------------------------------------------
ITEM 2(E). CUSIP NUMBER
71361C 10 7
- -------------------------------------------------------------------------------
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 Act
(b) / / Bank as defined in section 3(a)(6) of the Act
(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
(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)
(g) / / Parent Holding Company, in accordance with Rule 13d-1(b)(ii)(G)
(Note: See Item 7)
(h) / / Group, in accordance with Rule 13d-1(b)(1)(ii)(H)
N/A The filing person acquired all its shares prior to the registration of
the Issuer's shares pursuant to Section 12 of the Securities Exchange Act of
1934, as amended; therefore, this filing is pursuant to Rule 13d-1(c).
<PAGE>
CUSIP No. 71361C 10 7 13G Page 4 of 5 Pages
--------- --- ---
ITEM 4. OWNERSHIP
(a) Amount Beneficially Owned:
1,878,144*
----------
* Consists of (i) 1,391,850 shares held by the Simpson Family Trust
over which Dr. Simpson and his wife hold voting and dispositive
control, (ii) 436,294 shares held by Fox Hollow, Ltd., of which Dr.
Simpson is a general partner and (iii) 50,000 shares held by Dr.
Simpson as Custodian for John David Simpson over which Dr. Simpson
holds voting and dispositive control. Does not include an aggregate
of 150,000 shares issued to three of Dr. Simpson's adult children
over which Dr. Simpson does not hold voting or dispositive control.
---------------------------------------------------------------------------
(b) Percent of Class:
19.7% (based on 9,530,471 shares outstanding as of 12/31/96)
---------------------------------------------------------------------------
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote
50,000
-----------------------------------------------------------------
(ii) shared power to vote or to direct the vote
1,828,144
-----------------------------------------------------------------
(iii) sole power to dispose or to direct the disposition of
50,000
-----------------------------------------------------------------
(iv) shared power to dispose or to direct the disposition of
1,828,144
-----------------------------------------------------------------
ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS
If this statement is being filed to report the fact that as of the date hereof
the reporting person has ceased to be the beneficial owner of more than five
percent of the class of securities, check the following. / /
N/A
ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON
N/A
- -------------------------------------------------------------------------------
ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY
N/A
- -------------------------------------------------------------------------------
ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP
N/A
- -------------------------------------------------------------------------------
ITEM 9. NOTICE OF DISSOLUTION OF GROUP
N/A
- -------------------------------------------------------------------------------
<PAGE>
CUSIP No. 71361C 10 7 13G Page 5 of 5 Pages
--------- --- ---
ITEM 10. CERTIFICATION
By signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were acquired in the ordinary course of
business and were not acquired for the purpose of and do not have the effect of
changing or influencing the control of the issuer of such securities and were
not acquired in connection with or as a participant in any transaction having
such purposes or effect.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.
February 11, 1997
----------------------------------------
(Date)
/s/ John B. Simpson, M.D., Ph.D.
----------------------------------------
(Signature)
John B. Simpson, M.D., Ph.D.
----------------------------------------
(Name/Title)
