STOCK TITAN

[Form 4] Fortinet, Inc. Insider Trading Activity

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Fortinet, Inc. VP of Engineering and CTO Michael Xie reported a mix of RSU vesting, tax withholding, and open-market sales of common stock. On May 1, 2026, restricted stock units vested into 6,305 shares of common stock, and 3,184 shares were relinquished to cover federal and state tax obligations, as described under Section 16b-3(e).

On May 4, 2026, Xie executed open-market sales totaling 2,478 shares of Fortinet common stock at weighted average prices in the high‑$80s per share, pursuant to a pre-arranged Rule 10b5-1 trading plan. Following the reported direct transactions, he directly holds about 9,927,517 shares of common stock, in addition to substantial indirect holdings through various family and grantor retained trusts.

Positive

  • None.

Negative

  • None.
Insider Xie Michael
Role VP, ENGINEERING & CTO
Sold 2,478 shs ($220K)
Type Security Shares Price Value
Sale Common Stock 190 $87.0417 $17K
Sale Common Stock 197 $88.0859 $17K
Sale Common Stock 2,028 $89.1249 $181K
Sale Common Stock 63 $89.6086 $6K
Exercise Restricted Stock Units 2,763 $0.00 --
Exercise Restricted Stock Units 2,242 $0.00 --
Exercise Restricted Stock Units 1,300 $0.00 --
Exercise Common Stock 2,763 $0.00 --
Exercise Common Stock 2,242 $0.00 --
Exercise Common Stock 1,300 $0.00 --
Tax Withholding Common Stock 3,184 $86.29 $275K
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 9,929,805 shares (Direct, null); Restricted Stock Units — 8,291 shares (Direct, null); Common Stock — 19,825,614 shares (Indirect, By trust)
Footnotes (1)
  1. Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person. Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of in this Form 4 were relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of restricted stock units. The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 10, 2024. Represents the weighted average sale price. The lowest price at which shares were sold was $86.51 and the highest price at which shares were sold was $87.48. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the ranges set forth in footnotes (4), (5), (6) and (7) to this Form 4. Represents the weighted average sale price. The lowest price at which shares were sold was $87.52 and the highest price at which shares were sold was $88.515. Represents the weighted average sale price. The lowest price at which shares were sold was $88.52 and the highest price at which shares were sold was $89.51. Represents the weighted average sale price. The lowest price at which shares were sold was $89.52 and the highest price at which shares were sold was $89.70. These securities are held by the 2010 K.A. Family Trust dated May 3, 2010, for which the Reporting Person serves as a trustee. Shares held directly by the KAXX Trust under The K.A. Children's Trust dated February 9, 2011, for which the Reporting Person serves as a trustee. Shares held directly by the KAJJ Trust under The K.A. Children's Trust dated February 9, 2011, for which the Reporting Person serves as a trustee. These securities are held by a grantor retained annuity trust for the benefit of the Reporting Person. These securities are held by a grantor retained annuity trust for the benefit of the Reporting Person's spouse. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement. 25% of the RSUs vested on February 1, 2024, and the remaining 75% of the RSUs will vest in equal installments on each quarterly anniversary thereafter, until such time as the RSUs are 100% vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date. Shares of the Issuer's common stock will be delivered to the Reporting Person upon settlement. RSUs do not expire; they either vest or are canceled prior to the vesting date. 25% of the RSUs vested on February 1, 2025, and the remaining 75% of the RSUs will vest in equal installments on each quarterly anniversary thereafter, until such time as the RSUs are 100% vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date. Shares of the Issuer's common stock will be delivered to the Reporting Person upon vesting. 25% of the RSUs vested on February 1, 2026, and the remaining 75% of the RSUs will vest in equal installments on each quarterly anniversary thereafter, until such time as the RSUs are 100% vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date. Shares of the Issuer's common stock will be delivered to the Reporting Person upon settlement.
Shares sold 2,478 shares Open-market sales on May 4, 2026
Average sale price example $89.6086 per share One reported weighted average sale price
RSUs vested into shares 6,305 shares Common stock received from RSU vesting on May 1, 2026
Shares withheld for taxes 3,184 shares Tax-withholding disposition at $86.2900 per share
Direct holdings after transactions 9,927,517 shares Total direct Fortinet common stock following reported trades
Indirect trust holding example 19,825,614 shares Indirectly held by a grantor retained annuity trust
restricted stock units financial
"Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person."
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
Rule 10b5-1 trading plan regulatory
"The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 10, 2024."
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
Section 16b-3(e) regulatory
"Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities..."
grantor retained annuity trust financial
"These securities are held by a grantor retained annuity trust for the benefit of the Reporting Person."
A grantor retained annuity trust (GRAT) is an estate-planning tool where the person who creates the trust transfers assets into it but receives fixed cash payments (an annuity) from the trust for a set number of years; whatever remains after that term passes to designated beneficiaries. It matters to investors because it can shift future appreciation of assets out of the creator’s taxable estate—like putting an asset into a timed vending machine that pays you fixed amounts while any extra value that grows inside the machine goes to heirs with reduced gift or estate tax consequences.
weighted average sale price financial
"Represents the weighted average sale price. The lowest price at which shares were sold was $86.51 and the highest price..."
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Xie Michael

(Last)(First)(Middle)
C/O FORTINET, INC.
909 KIFER ROAD

(Street)
SUNNYVALE CALIFORNIA 94086

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Fortinet, Inc. [ FTNT ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
VP, ENGINEERING & CTO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/01/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock05/01/2026M(1)2,763A$09,929,637D
Common Stock05/01/2026M(1)2,242A$09,931,879D
Common Stock05/01/2026M(1)1,300A$09,933,179D
Common Stock05/01/2026F(2)3,184D$86.299,929,995D
Common Stock05/04/2026S(3)190D$87.0417(4)9,929,805D
Common Stock05/04/2026S(3)197D$88.0859(5)9,929,608D
Common Stock05/04/2026S(3)2,028D$89.1249(6)9,927,580D
Common Stock05/04/2026S(3)63D$89.6086(7)9,927,517D
Common Stock19,825,614IBy trust(8)
Common Stock5,513,505ISee footnote(9)
Common Stock5,513,505ISee footnote(10)
Common Stock7,573,438IBy trust(11)
Common Stock7,573,438IBy trust(12)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units$0(13)05/01/2026M(1)2,763 (14) (15)Common Stock2,763$08,291D
Restricted Stock Units$0(13)05/01/2026M(1)2,242 (16) (15)Common Stock2,242$015,696D
Restricted Stock Units$0(13)05/01/2026M(1)1,300 (17) (15)Common Stock1,300$014,302D
Explanation of Responses:
1. Vesting of restricted stock units ("RSUs") previously granted to the Reporting Person.
2. Exempt transaction pursuant to Section 16b-3(e) - payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. All of the shares reported as disposed of in this Form 4 were relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of restricted stock units.
3. The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 10, 2024.
4. Represents the weighted average sale price. The lowest price at which shares were sold was $86.51 and the highest price at which shares were sold was $87.48. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the ranges set forth in footnotes (4), (5), (6) and (7) to this Form 4.
5. Represents the weighted average sale price. The lowest price at which shares were sold was $87.52 and the highest price at which shares were sold was $88.515.
6. Represents the weighted average sale price. The lowest price at which shares were sold was $88.52 and the highest price at which shares were sold was $89.51.
7. Represents the weighted average sale price. The lowest price at which shares were sold was $89.52 and the highest price at which shares were sold was $89.70.
8. These securities are held by the 2010 K.A. Family Trust dated May 3, 2010, for which the Reporting Person serves as a trustee.
9. Shares held directly by the KAXX Trust under The K.A. Children's Trust dated February 9, 2011, for which the Reporting Person serves as a trustee.
10. Shares held directly by the KAJJ Trust under The K.A. Children's Trust dated February 9, 2011, for which the Reporting Person serves as a trustee.
11. These securities are held by a grantor retained annuity trust for the benefit of the Reporting Person.
12. These securities are held by a grantor retained annuity trust for the benefit of the Reporting Person's spouse.
13. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement.
14. 25% of the RSUs vested on February 1, 2024, and the remaining 75% of the RSUs will vest in equal installments on each quarterly anniversary thereafter, until such time as the RSUs are 100% vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date. Shares of the Issuer's common stock will be delivered to the Reporting Person upon settlement.
15. RSUs do not expire; they either vest or are canceled prior to the vesting date.
16. 25% of the RSUs vested on February 1, 2025, and the remaining 75% of the RSUs will vest in equal installments on each quarterly anniversary thereafter, until such time as the RSUs are 100% vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date. Shares of the Issuer's common stock will be delivered to the Reporting Person upon vesting.
17. 25% of the RSUs vested on February 1, 2026, and the remaining 75% of the RSUs will vest in equal installments on each quarterly anniversary thereafter, until such time as the RSUs are 100% vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date. Shares of the Issuer's common stock will be delivered to the Reporting Person upon settlement.
Remarks:
The number of shares reported as directly owned by the Reporting Person has been adjusted in connection with a reconciliation to the Reporting Person's shareholdings as reflected in the records of the Issuer's transfer agent.
/s/ Robert Turner, by power of attorney05/05/2026
** Signature of Reporting PersonDate
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).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who 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: SEC 1474 (03-26)

FAQ

What did Fortinet (FTNT) CTO Michael Xie report in this Form 4?

Michael Xie reported vesting of restricted stock units into 6,305 Fortinet shares, tax withholding of 3,184 shares, and open-market sales totaling 2,478 shares. These transactions reflect routine equity compensation vesting and pre-planned share sales disclosed for regulatory transparency.

How many Fortinet (FTNT) shares did Michael Xie sell in open-market trades?

Michael Xie sold a total of 2,478 shares of Fortinet common stock in open-market transactions on May 4, 2026. The trades were executed at weighted average prices in the high-$80s per share and were carried out under a pre-arranged Rule 10b5-1 trading plan.

What RSU activity did Fortinet (FTNT) CTO Michael Xie disclose?

He disclosed vesting of restricted stock units that converted into 6,305 shares of Fortinet common stock on May 1, 2026. Footnotes explain that these RSUs vest in quarterly installments, with each RSU representing a contingent right to receive one share upon settlement or vesting.

Why were 3,184 Fortinet (FTNT) shares relinquished by Michael Xie?

Xie relinquished 3,184 shares in an exempt transaction to cover federal and state tax withholding obligations arising from RSU vesting. The issuer canceled these shares in exchange for paying the related taxes, consistent with Section 16b-3(e) treatment for equity-based compensation.

Was Michael Xie’s Fortinet (FTNT) share sale under a Rule 10b5-1 plan?

Yes. A footnote states the reported sale transactions were effected under a Rule 10b5-1 trading plan adopted on December 10, 2024. Such pre-arranged plans schedule trades in advance, making the timing more routine and less reflective of short-term market views.

How many Fortinet (FTNT) shares does Michael Xie hold after these transactions?

After the reported direct transactions, he holds 9,927,517 Fortinet common shares directly. The filing also shows significant additional indirect holdings through multiple family and grantor retained trusts, where he serves as trustee or beneficiary as described in the footnotes.