------ UNITED STATES SECURITIES AND EXCHANGE COMMISSION ------------------------------
FORM 4 WASHINGTON, D.C. 20549 OMB APPROVAL
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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OMB NUMBER: 3235-0287
[ ] CHECK THIS BOX IF NO EXPIRES: DECEMBER 31, 2001
LONGER SUBJECT TO Filed pursuant to Section 16(a) of the Securities ESTIMATED AVERAGE BURDEN
SECTION 16. FORM 4 Exchange Act of 1934, Section 17(a) of the HOURS PER RESPONSE.........0.5
OR FORM 5 OBLIGATIONS Public Utility Holding Company Act of 1935 ------------------------------
MAY CONTINUE. SEE or Section 30(f) of the Investment Company
INSTRUCTION 1(b). Act of 1940
(Print or Type Responses)
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1. Name and Address of Reporting Person* 2. Issuer Name AND Ticker or Trading Symbol 6. Relationship of Reporting Person(s)
GUELICH, KARL D F5 NETWORKS, INC. (ffiv) to Issuer (Check all applicable)
-------------------------------------------- ---------------------------------------------- X Director 10% Owner
(Last) (First) (Middle) 3. IRS Identification 4. Statement for ---- ---
C/O F5 NETWORKS, INC. Number of Reporting Month/Year Officer (give Other (specify
401 ELLIOTT AVENUE WEST Person, if an entity FEBRUARY 2002 ---- title below) --- below)
-------------------------------------------- (Voluntary) -------------------
(Street) 5. If Amendment, DIRECTOR
Seattle, WA 98119 Date of Original ------------------------------------
-------------------------------------------- (Month/Year)
(City) (State) (Zip) 7. Individual or Joint/Group Filing
------------------- (Check Applicable Line)
X Form filed by One
---- Reporting Person
Form filed by More than
---- One Reporting Person
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TABLE I -- NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED
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1. Title of Security 2. Trans- 3. Trans- 4. Securities Acquired (A) 5. Amount of 6. Ownership 7. Nature of
(Instr. 3) action action or Disposed of (D) Securities Form: Indirect
Date Code (Instr. 3, 4 and 5) Beneficially Direct Beneficial
(Instr. 8) Owned at (D) or Ownership
(Month/ End of Month Indirect (Instr. 4)
Day/ --------------------------------------- (Instr. 3 and 4) (I)
Year) Code V Amount (A) or Price (Instr. 4)
(D)
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COMMON STOCK 02/13/02 M 15,000 A $ 8.10 D
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COMMON STOCK 02/13/02 S 15,000 D $22.40 0 D
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Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. (Over)
*If the form is filed by more than one reporting person, see Instruction 4(b)(v). SEC 1474 (3-99)
POTENTIAL PERSONS WHO ARE TO RESPOND TO THE COLLECTION OF INFORMATION CONTAINED IN THIS FORM ARE NOT
REQUIRED TO RESPOND UNLESS THE FORM DISPLAYS A CURRENTLY VALID OMB NUMBER.
FORM 4 (CONTINUED) TABLE II -- DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED
(E.G., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES)
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1. Title of Derivative 2. Conver- 3. Trans- 4. Trans- 5. Number of 6. Date Exer- 7. Title and Amount 8. Price
Security sion or action action Derivative cisable and of Underlying of
(Instr. 3) Exercise Date Code Securities Ac- Expiration Securities Deriv-
Price of (Month/ (Instr. 8) quired (A) or Date (Instr. 3 and 4) ative
Deriv- Day/ Disposed of (D) (Month/Day/ Secur-
ative Year) (Instr. 3, 4, Year) ity
Security and 5) (Instr. 5)
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Code V (A) (D) Date Expira- Title Amount or
Exer- tion Number of
cisable Date Shares
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NON-QUALIFIED STOCK OPTION COMMON
(RIGHT TO BUY) $8.10 02/13/02 M 15,000 04/20/01 04/20/11 STOCK 15,000
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9. Number of 10. Ownership 11. Nature of
Derivative Form of Indirect
Securities Derivative Beneficial
Beneficially Security: Ownership
Owned at End Direct (D) (Instr. 4)
of Month or Indirect (I)
(Instr. 4) (Instr. 4)
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Explanation of Responses:
**Intentional misstatements or omissions of facts constitute Federal
Criminal Violations.
See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
/s/ KARL GUELICH 3/4/02
Note: File three copies of this Form, one of which must be manually signed. ------------------------------- ---------------
If space is insufficient, see Instruction 6 for procedure. **Signature of Reporting Person Date
Potential persons who are to respond to the collection of information Page 2
contained in this form are not required to respond unless the form SEC 1474 (3-99)
displays a currently valid OMB Number.