<PAGE>
OMB APPROVAL
---------------------------
OMB Number: 3235-0145
Expires: August 31, 1999
Estimated average burden hours per response...14.90
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(AMENDMENT NO. 4)*
Image Guided Technologies, Inc.
- --------------------------------------------------------------------------------
(Name of Issuer)
Common Stock, no par value
- --------------------------------------------------------------------------------
(Title of Class of Securities)
451922 10 8
--------------------------------------------
(CUSIP Number)
December 31, 1998
- --------------------------------------------------------------------------------
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:
/ / Rule 13d-1(b)
/X/ Rule 13d-1(c)
/ / Rule 13d-1(d)
*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 of1934
("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. 451922 10 8
- --------------------------------------------------------------------------------
1. NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
(entities only)
Ray L. Hauser
- --------------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
(a) / /
(b) / /
- --------------------------------------------------------------------------------
3. SEC USE ONLY
- --------------------------------------------------------------------------------
4. CITIZENSHIP OR PLACE OF ORGANIZATION
U.S.A.
- --------------------------------------------------------------------------------
NUMBER OF 5. SOLE VOTING POWER
SHARES 317,426
--------------------------------------------------------
BENEFICIALLY
6. SHARED VOTING POWER
OWNED BY
N/A
EACH --------------------------------------------------------
REPORTING 7. SOLE DISPOSITIVE POWER
PERSON 317,426
--------------------------------------------------------
WITH: 8. SHARED DISPOSITIVE POWER
N/A
- --------------------------------------------------------------------------------
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
317,426
- --------------------------------------------------------------------------------
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(See Instructions) / /
- --------------------------------------------------------------------------------
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
7.9%
- --------------------------------------------------------------------------------
12. TYPE OF REPORTING PERSON (See Instructions)
IN
- --------------------------------------------------------------------------------
2
<PAGE>
ITEM 1. Image Guided Technologies, Inc.
5710 B Flatiron Parkway
Boulder, CO 80301
ITEM 2. (a) Ray L. Hauser
(b) 5758 Rustic Knoll Dr., Boulder, CO 80301
(c) U.S.A.
(d) Common Stock, no par value
(e) 451922 10 8
ITEM 3. N/A
ITEM 4. (a) 317,426
(b) 7.9 %
(c) (i) 317,426*; (ii) N/A; (iii) 317,426*; (iv) N/A
* Includes 26,706 shares underlying stock options that are exercisable.
ITEM 5. N/A
ITEM 6. N/A
ITEM 7. N/A
ITEM 8. N/A
ITEM 9. N/A
ITEM 10. By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were not acquired and are not held
for the purpose of or with the effect of changing or influencing the control
of the issuer of the securities and were not acquired and are not held in
connection with or as a participant in any transaction having that purpose 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 14, 2000
-----------------
Date
/s/ Ray L. Hauser
-----------------
Signature
Ray L. Hauser
-----------------
Name/Title
3
