STOCK TITAN

SentinelOne (NYSE: S) director Mark Peek receives new stock unit awards

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

PEEK MARK S reported acquisition or exercise transactions in this Form 4 filing.

SentinelOne, Inc. director Mark S. Peek reported equity awards in the form of Class A Common Stock-based units. He received 14,238 deferred restricted stock units and 4,746 restricted stock units at $0.00 per share. These awards vest on time-based schedules extending to June 2027 and are subject to forfeiture if service or vesting conditions are not met. Following these grants, he reports 62,485 and 48,247 directly held shares in separate entries, plus additional indirect holdings through several family trusts.

Positive

  • None.

Negative

  • None.
Insider PEEK MARK S
Role null
Type Security Shares Price Value
Grant/Award Class A Common Stock 4,746 $0.00 --
Grant/Award Class A Common Stock 14,238 $0.00 --
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
Holdings After Transaction: Class A Common Stock — 48,247 shares (Direct, null); Class A Common Stock — 120,000 shares (Indirect, By Omega Living Trust)
Footnotes (1)
  1. Represents an award of deferred restricted stock units (DSUs) granted on June 25, 2026, which shall vest on a time-based vesting schedule but for which settlement has been deferred pursuant to the Reporting Person's election under the Program (defined below). Each DSU represents a contingent right to receive one share of the Issuer's Class A Common Stock, subject to satisfaction of the time-based vesting conditions. The DSUs shall time-vest as to 25% of the total shares on each of September 15, December 15, and March 15, and with the final quarterly installment vesting on the earliest of (i) the date of the next annual meeting of the Issuer's stockholders, (ii) the date immediately prior to the next annual meeting of the Issuer's stockholders if the applicable non-employee director's service as a director ends at such meeting due to the Reporting Person's failure to be re-elected or the Reporting Person not standing for re-election, and [cont'd from Footnote 1] (iii) June 15, 2027, subject to the Reporting Person's provision of service to the Issuer on each vesting date, and with deferred settlement occurring subject to the terms of the Program. Certain of the shares are subject to forfeiture to the Issuer if underlying vesting conditions are not met. Represents an award of restricted stock units. The entire award shall vest and settle for shares of the Issuer's Class A Common Stock on the earliest of (a) June 25, 2027, (b) the date of the next annual meeting of the Issuer's stockholders (or the date immediately prior to such, if the Reporting Person's service as a director ends at such meeting due to his/her failure to be re-elected or not standing for re-election), (c) the Reporting Person's death, (d) the date on which the Reporting Person becomes disabled, or (e) the occurrence of a change in control as defined in the Issuer's Non-Employee Director Compensation Program (the "Program"), in each case subject to the Reporting Person's continued service to the Issuer on each vesting date. The reported securities are directly held by an irrevocable trust with a third-party trustee, which was settled by the reporting person and for which a child of the reporting person is the beneficiary.
Deferred restricted stock units granted 14,238 units Award of DSUs granted on June 25, 2026
Restricted stock units granted 4,746 units RSU award with vesting by June 25, 2027
Price per share for awards $0.00 per share Grant price for reported Class A Common Stock awards
Direct holdings after DSU-related entry 62,485 shares Total Class A Common Stock directly held following one acquisition entry
Direct holdings after RSU-related entry 48,247 shares Total Class A Common Stock directly held following second acquisition entry
Omega Living Trust indirect holding 120,000 shares Class A Common Stock held indirectly via Omega Living Trust
deferred restricted stock units (DSUs) financial
"Represents an award of deferred restricted stock units (DSUs) granted on June 25, 2026, which shall vest on a time-based vesting schedule..."
restricted stock units financial
"Represents an award of restricted stock units. The entire award shall vest and settle for shares of the Issuer's Class A Common Stock..."
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.
Non-Employee Director Compensation Program financial
"as defined in the Issuer's Non-Employee Director Compensation Program (the "Program"), in each case subject to the Reporting Person's continued service..."
irrevocable trust financial
"The reported securities are directly held by an irrevocable trust with a third-party trustee, which was settled by the reporting person..."
An irrevocable trust is a legal arrangement where an owner transfers assets into a separate entity managed by a trustee and gives up the power to modify or reclaim those assets. For investors it matters because putting stock or other holdings into such a trust can change who controls and benefits from the assets, affect taxes and creditor protection, and influence how easy it is to sell or value those holdings—like placing valuables in a locked safe overseen by someone else.
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Learn about SEC filing dates
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).
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*
PEEK MARK S

(Last)(First)(Middle)
C/O SENTINELONE, INC.
444 CASTRO STREET, SUITE 400

(Street)
MOUNTAIN VIEW CALIFORNIA 94041

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
SentinelOne, Inc. [ S ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/25/2026
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
Class A Common Stock06/25/2026A4,746(1)(2)A$048,247(3)D
Class A Common Stock06/25/2026A14,238(4)A$062,485(3)D
Class A Common Stock120,000IBy Omega Living Trust
Class A Common Stock5,527IBy Children's Trust 3(5)
Class A Common Stock5,527IBy Children's Trust 2(5)
Class A Common Stock5,527IBy Children's Trust 1(5)
Class A Common Stock5,527IBy Children's Trust 4(5)
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
Explanation of Responses:
1. Represents an award of deferred restricted stock units (DSUs) granted on June 25, 2026, which shall vest on a time-based vesting schedule but for which settlement has been deferred pursuant to the Reporting Person's election under the Program (defined below). Each DSU represents a contingent right to receive one share of the Issuer's Class A Common Stock, subject to satisfaction of the time-based vesting conditions. The DSUs shall time-vest as to 25% of the total shares on each of September 15, December 15, and March 15, and with the final quarterly installment vesting on the earliest of (i) the date of the next annual meeting of the Issuer's stockholders, (ii) the date immediately prior to the next annual meeting of the Issuer's stockholders if the applicable non-employee director's service as a director ends at such meeting due to the Reporting Person's failure to be re-elected or the Reporting Person not standing for re-election, and
2. [cont'd from Footnote 1] (iii) June 15, 2027, subject to the Reporting Person's provision of service to the Issuer on each vesting date, and with deferred settlement occurring subject to the terms of the Program.
3. Certain of the shares are subject to forfeiture to the Issuer if underlying vesting conditions are not met.
4. Represents an award of restricted stock units. The entire award shall vest and settle for shares of the Issuer's Class A Common Stock on the earliest of (a) June 25, 2027, (b) the date of the next annual meeting of the Issuer's stockholders (or the date immediately prior to such, if the Reporting Person's service as a director ends at such meeting due to his/her failure to be re-elected or not standing for re-election), (c) the Reporting Person's death, (d) the date on which the Reporting Person becomes disabled, or (e) the occurrence of a change in control as defined in the Issuer's Non-Employee Director Compensation Program (the "Program"), in each case subject to the Reporting Person's continued service to the Issuer on each vesting date.
5. The reported securities are directly held by an irrevocable trust with a third-party trustee, which was settled by the reporting person and for which a child of the reporting person is the beneficiary.
Remarks:
Exhibit 24.1 - Power of Attorney
/s/ Keenan Conder, Attorney-in-Fact06/26/2026
** 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 SentinelOne (S) director Mark S. Peek report in this Form 4?

He reported equity awards tied to Class A Common Stock, including 14,238 deferred restricted stock units and 4,746 restricted stock units. These awards were granted at no cash cost and vest over time, contingent on his continued service as a non-employee director.

How many SentinelOne (S) deferred restricted stock units were granted to Mark S. Peek?

He received an award of 14,238 deferred restricted stock units, each representing a contingent right to one share of Class A Common Stock. The units vest in quarterly installments beginning September 15 and conclude by the earliest of specified future dates, including June 15, 2027.

What is the vesting schedule for Mark S. Peek’s SentinelOne (S) deferred stock units?

The deferred restricted stock units time-vest 25% on each of September 15, December 15, and March 15, with the final portion vesting on the earliest of the next annual stockholder meeting, immediately before that meeting under certain conditions, or June 15, 2027, assuming continued service.

What restricted stock unit grant did Mark S. Peek receive from SentinelOne (S)?

He received an award of 4,746 restricted stock units that will vest and settle in shares of Class A Common Stock on the earliest of June 25, 2027, the next annual stockholder meeting (or just before it in some cases), death, disability, or a qualifying change in control.

Are Mark S. Peek’s SentinelOne (S) equity awards subject to forfeiture?

Yes. The filing states that certain shares are subject to forfeiture if underlying vesting conditions are not satisfied. Both the deferred restricted stock units and restricted stock units require his continued service to SentinelOne through each applicable vesting date to fully earn and retain the awards.

How are some of Mark S. Peek’s SentinelOne (S) shares held for family members?

Some reported securities are held by an irrevocable trust with a third-party trustee, settled by him for a child beneficiary. Additional indirect holdings are reported through four Children’s Trusts and the Omega Living Trust, reflecting family estate and wealth-planning structures.