------ UNITED STATES SECURITIES AND EXCHANGE COMMISSION ------------------------------ FORM 4 WASHINGTON, D.C. 20549 OMB APPROVAL ------ ------------------------------ 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) ------------------------------------------------------------------------------------------------------------------------------------ 1. Name and Address of Reporting Person* 2. Issuer Name and Ticker or Trading Symbol 6. Relationship of Reporting Person(s) PANCOTTINE, JEFFREY F5 NETWORKS, INC. (ffiv) to Issuer (Check all applicable) -------------------------------------------- ---------------------------------------------- Director 10% Owner (Last) (First) (Middle) 3. I.R.S Identification 4. Statement for ---- --- c/o F5 NETWORKS, INC. Number of Reporting Month/Year X Officer (give Other (specify 401 ELLIOTT AVENUE WEST Person, if an entity OCTOBER 2001 ---- title below) --- below) -------------------------------------------- (Voluntary) ------------------- SR. VICE PRESIDENT OF (Street) 5. If Amendment, GLOBAL MARKETING 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 ------------------------------------------------------------------------------------------------------------------------------------ TABLE I -- NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED ------------------------------------------------------------------------------------------------------------------------------------ 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) ------------------------------------------------------------------------------------------------------------------------------------ COMMON STOCK 10/31/01 V 834 A $6.42 1,877(1) D ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 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) PAGE 1 OF 3 PAGES FORM 4 (CONTINUED) TABLE II -- DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED (E.G., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES) ------------------------------------------------------------------------------------------------------------------------------------ 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) ------------------------------------------------------------------------------------------------------------------------------------ Code V (A) (D) Date Expira- Title Amount or Exer- tion Number of cisable Date Shares ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 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) -------------------------------------------------------------------------- -------------------------------------------------------------------------- -------------------------------------------------------------------------- -------------------------------------------------------------------------- -------------------------------------------------------------------------- -------------------------------------------------------------------------- -------------------------------------------------------------------------- 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/ JEFFREY PANCOTTINE 11/5/01 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 of 3 Pages contained in this form are not required to respond unless the form SEC 1474 (3-99) displays a currently valid OMB Number. (1) INCLUDES 834 SHARES ACQUIRED UNDER THE F5 NETWORKS STOCK PURCHASE PLAN IN OCTOBER 2001.