Form 144: S holder plans sale of 1,513 Class A shares on NYSE

Rhea-AI Filing Summary

Form 144 notice by a holder of Class A common stock of SentinelOne, Inc. reports a proposed sale of 1,513 shares with an aggregate market value of $27,234, to be executed approximately on 10/06/2025 on the NYSE. The filer states these shares were acquired in a public purchase on 07/02/2021 totaling 13,104 shares and paid by wire to the portfolio company.

The filing lists recent sales by the same seller, Insight Partners Fund X (Delaware) Follow-On Fund, L.P., of 563 shares on 07/07/2025 ($10,253.36), 572 shares on 07/08/2025 ($10,542.19), 47 shares on 10/01/2025 ($847.94), and 33 shares on 10/03/2025 ($595.32). The filer certifies no undisclosed material adverse information and includes the standard Rule 144 representations.

Positive

• Proposed sale size of 1,513 shares is very small versus 324,760,095 shares outstanding
• Acquisition date is disclosed (07/02/2021), showing the filer held the shares since a public purchase
• Recent sales are fully disclosed with dates and proceeds, supporting transparency

Negative

• Prior sales in the past three months total 1,215 shares for $22,238.81, indicating ongoing disposals
• Aggregate market value of the proposed sale is $27,234, which, while small, adds to recent selling activity

Insights

Securities Compliance Specialist

TL;DR: Form 144 documents a routine Rule 144 sale notification for 1,513 Class A shares.

The notice identifies a proposed sale under Rule 144 of 1,513 Class A shares with an aggregate market value of $27,234 and lists acquisition on 07/02/2021. The seller certified the absence of undisclosed material adverse information, which is a standard attestation for this filing type.

Key compliance items to watch are the dates and aggregation of prior sales: four transactions totaling 1,215 shares in the past three months are disclosed, which the filer must aggregate when determining volume limitations under Rule 144. Expect settlement and broker documentation to confirm compliance before completion.

Equity Capital Markets Analyst

TL;DR: The sale size is small relative to total outstanding shares, so market impact is likely minimal.

The proposed sale of 1,513 shares compares with 324,760,095 shares outstanding, indicating the transaction represents a de minimis portion of the float. Recent disposals by the same seller totaled 1,215 shares for $22,238.81, showing this is part of a sequence of small disposals.

Investors typically note such filings for potential incremental supply; however, given the absolute sizes disclosed, any price impact is likely negligible in normal market conditions. Monitor executed trade reports on 10/06/2025 for confirmation of completion.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A	Raymond James & Associates 880 Carillon Parkway St. Petersburg FL 33716	1513	27234.00	324760095	10/06/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A	07/02/2021	Public stock purchase	SentinelOne, Inc.			13104	07/02/2021	Wired to portfolio company.

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Insight Partners Fund X (Delaware) Follow-On Fund, L.P. 1114 Avenue of the Americas, 36th Floor New York NY 10036	Class A	07/07/2025	563	10253.36
Insight Partners Fund X (Delaware) Follow-On Fund, L.P. 1114 Avenue of the Americas, 36th Floor New York NY 10036	Class A	07/08/2025	572	10542.19
Insight Partners Fund X (Delaware) Follow-On Fund, L.P. 1114 Avenue of the Americas, 36th Floor New York NY 10036	Class A	10/01/2025	47	847.94
Insight Partners Fund X (Delaware) Follow-On Fund, L.P. 1114 Avenue of the Americas, 36th Floor New York NY 10036	Class A	10/03/2025	33	595.32

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does SentinelOne (S) Form 144 report?

It reports a proposed sale of 1,513 Class A shares with an aggregate market value of $27,234, to be sold on 10/06/2025 on the NYSE.

Who is the seller listed on the filing for S?

The recent sales are attributed to Insight Partners Fund X (Delaware) Follow‑On Fund, L.P., which disclosed multiple small sales in July and October 2025.

How many shares has the seller sold in the past three months?

The seller disclosed four sales totaling 1,215 shares with combined gross proceeds of $22,238.81.

When were the shares originally acquired?

The shares subject to the proposed sale were acquired in a public purchase on 07/02/2021, totaling 13,104 shares.

Does the filer assert any undisclosed material information?

By signing, the filer represents they do not know any material adverse information about the issuer that has not been publicly disclosed.