<PAGE>
/------------------------------/
/ OMB APPROVAL /
/------------------------------/
/ OMB Number: 3235-0287 /
/ Expires: September 30, 1998 /
/ Estimated average burden /
/ hours per response...... 0.5 /
/------------------------------/
+--------+
| FORM 4 | U.S. SECURITIES AND EXCHANGE COMMISSION
+--------+ WASHINGTON, D.C. 20549
[_] Check this box if
no longer subject STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
to Section 16.
Form 4 or Form 5 Filed pursuant to Section 16(a) of the Securities
obligations may Exchange Act of 1934, Section 17(a) of the
continue. See Public Utility Holding Company Act of 1935 or
Instruction 1(b). Section 30(f) of the Investment Company Act of 1940
- --------------------------------------------------------------------------------
1. Name and Address of Reporting Person*
Crane Anthony S.
- --------------------------------------------------------------------------------
(Last) (First) (Middle)
C/O/ OSI Systems, Inc. 12525 Chadron Avenue
- --------------------------------------------------------------------------------
(Street)
Hawthorne, Ca. 90250
- --------------------------------------------------------------------------------
(City) (State) (Zip)
* If the Form is filed by more than one Reporting Person, see Instruction
4(b)(v).
- --------------------------------------------------------------------------------
2. Issuer Name and Ticker or Trading Symbol OSI Systems, Inc. (OSIS)
-----------------------------------
3. IRS or Social Security Number of Reporting Person (Voluntary)
--------------
4. Statement for Month/Year March 2000
---------------------------------------------------
5. If Amendment, Date of Original (Month/Year)
---------------------------------
6. Relationship of Reporting Person to Issuer (Check all applicable)
X
___ Director --- Officer ___ 10% Owner ___ Other
(give title below) (specify below)
Managing Director of Rapiscan Security Products, Ltd. (Subsidiary)
-------------------
------------------------------------------------------------------
7. Individual or Joint/Group Filing (Check applicable line)
X
---- Form filed by One Reporting Person
____ Form filed by More than One Reporting Person
Table I--Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
1. Title 2. Trans- 3. Trans- 4. Securities Acquired (A) 5. Amount of 6. Owner- 7. Nature
of action action or Disposed of (D) Securities ship of In-
Security Date Code (Instr. 3, 4 and 5) Beneficially Form: direct
(Instr. 3) (Month/ (Instr. 8) Owned at Direct Bene-
Day/ ----------------------------------------------- End of (D) or ficial
Year) Month Indirect Owner-
Code V Amount (A) or Price (Instr. 3 and 4) (I) ship
(D) (Instr. 4) (Instr. 4)
- ------------------------------------------------------------------------------------------------------------------------------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C>
- ------------------------------------------------------------------------------------------------------------------------------------
Common Stock 3-24-00 M 6,000 A $ 2.833
- ------------------------------------------------------------------------------------------------------------------------------------
Common Stock 3-21-00 S 6,308 D $16.125
- ------------------------------------------------------------------------------------------------------------------------------------
Common Stock 3-24-00 S 6,000 D $15.875 0
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>
Reminder: Report on a separate line for each class of securities beneficially
owned directly or indirectly.
(Print or Type Responses) (Over)
<PAGE>
Table II--Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------------------------
1. Title of Derivative 2. Conver- 3. Trans- 4. Transac- 5. Number of Deriv-
Security (Instr. 3) sion or action tion Code ative Securities
Exercise Date (Instr. 8) Acquired (A) or
Price of (Month/ Disposed of (D)
Deriv- Day/ (Instr. 3, 4, and 5)
ative Year)
Security
---------------------------------------------------
Code V (A) (D)
- -----------------------------------------------------------------------------------------------------------------------------
<S> <C>
Employee $7.00 8-3-99 A 2,500
- -----------------------------------------------------------------------------------------------------------------------------
Stock Option $8.62 2-7-00 A 1,500
- -----------------------------------------------------------------------------------------------------------------------------
$2.833 2-24-00 M 6,000
- -----------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------
- -----------------------------------------------------------------------------------------------------------------------------
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
6. Date Exer- 7. Title and Amount of 8. Price 9. Number 10. Owner- 11. Na-
cisable and Underlying Securities of of Deriv- ship ture
Expiration (Instr. 3 and 4) Deriv- ative Form of In-
Date ative Secur- of De- direct
(Month/Day/ Secur- ities rivative Bene-
Year) ity Bene- Security: ficial
(Instr. ficially Direct (D) Owner-
-------------------------------------------- 5) Owned or Indirect ship
Date Expira- Amount or at End (I) (Instr.
Exer- tion Title Number of of 4)
cisable Date Shares Month
(Instr. 4) (Instr. 4)
- ------------------------------------------------------------------------------------------------------------------------------------
<S> <C>
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
(1) 8-3-04 Common 2,500 $7.00
Stock
- ------------------------------------------------------------------------------------------------------------------------------------
(1) 2-7-05 Common 1,500 $8.62
Stock
- ------------------------------------------------------------------------------------------------------------------------------------
(2) 11-14-01 Common 6,000 $2.833 16,007 D
Stock
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>
Explanation of Responses:
(1) Vested over four year period from the date of grant.
(2) Entire employee stock is vested.
** Intentional misstatements or omissions of facts constitute Federal Criminal
Violations.
See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
/s/ Anthony Crane 4-10-00
------------------------------- -----------------
**Signature of Reporting Person Date
Note: File three copies of this Form, one of which must be manually signed.
If space provided is insufficient, see Instruction 6 for procedure.
Page 2
