------ U.S. 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 ------------------------------------------------------------------------------------------------------------------------------------ 1. Name and Address of Reporting Person* 2. Issuer Name and Ticker or Trading Symbol 6. Relationship of Reporting Person Helsel Brett L F5 Networks, Inc. (ffiv) to Issuer (Check all applicable) -------------------------------------------- ---------------------------------------------- Director 10% Owner (Last) (First) (Middle) 3. IRS or Social Security 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 April 2002 ---- title below) --- below) -------------------------------------------- (Voluntary) ------------------- (Street) 5. If Amendment, Chief Technology Officer 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 (Month/ (Instr. 8) Owned at (D) or Ownership Day/ End of Month Indirect (Instr. 4) Year) --------------------------------------- (Instr. 3 and 4) (I) Code V Amount (A) Price (Instr. 4) or (D) ------------------------------------------------------------------------------------------------------------------------------------ Common Stock 4/26/02 M 37,500 A $0.05 148,833 D ------------------------------------------------------------------------------------------------------------------------------------ Common Stock 150 I By Trust ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. *If the form is filed by more than one reporting person, see Instruction 4(b)(v). 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. (Over) (Print or Type Responses) SEC 1474 (3-99) 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 ------------------------------------------------------------------------------------------------------------------------------------ Incentive Stock Option $0.05 4/26/02 M 37,500 4/13/08 Common 37,500 (right to buy) Stock ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 9. Number of 10. Ownership 11. Nature of Derivative of Derivative Indirect Securities Security: Beneficial Beneficially Direct (D) Ownership Owned at End or Indirect (I) (Instr. 4) of Month (Instr. 4) (Instr. 4) -------------------------------------------------------------------------- D -------------------------------------------------------------------------- -------------------------------------------------------------------------- -------------------------------------------------------------------------- -------------------------------------------------------------------------- -------------------------------------------------------------------------- -------------------------------------------------------------------------- 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/ Brett Helsel 5/6/02 Note: File three copies of this Form, one of which must be manually signed. ------------------------------- --------------- If space provided is insufficient, see Instruction 6 for procedure. **Signature of Reporting Person Date 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. Page 2 SEC 1474 (3-99)