StandardAero Form 4: Chief Strategy Officer disposes 4,035 shares under Rule 10b5-1

Rhea-AI Filing Summary

Alex Trapp, listed as Chief Strategy Officer of StandardAero, Inc. (SARO), reported a sale of 4,035 shares of the issuer's common stock on 09/23/2025 at a price of $28 per share. The filing states the sales were effected under a Rule 10b5-1 trading plan adopted on June 11, 2025. After the reported disposition, the reporting person beneficially owned 10,000 shares, held directly. The Form 4 was signed by an attorney-in-fact, Steve Sinquefield, on 09/25/2025. The filing indicates it was submitted by a single reporting person.

Positive

• Sale executed under a Rule 10b5-1 plan, indicating pre-scheduled disposition rather than opportunistic trading
• Filing contains full transaction details: date, price ($28), shares sold (4,035) and remaining direct ownership (10,000)

Negative

• Reduction in insider's direct holdings by 4,035 shares
• No information in this filing about the size of the 10,000 shares relative to total outstanding shares or prior holdings, limiting context

Insights

Securities Analyst

TL;DR: Routine insider sale under a Rule 10b5-1 plan reduces direct holdings to 10,000 shares; no new derivative activity disclosed.

The reported transaction is a non-derivative sale of 4,035 common shares at $28 per share executed under a pre-established Rule 10b5-1 plan, which typically indicates the sale was pre-scheduled and not based on contemporaneous material, non-public information. The filing shows the reporting person retains direct ownership of 10,000 shares following the sale. There are no derivative securities reported and no indication of amendments or joint filers. For investors, this disclosure documents insider liquidity but contains no new operational or financial metrics about the company.

Corporate Governance Specialist

TL;DR: Disclosure is compliant and routine; signature by attorney-in-fact is properly included.

The Form 4 provides the required details: reporting person identity and role, transaction date and code, number of shares sold, price, residual beneficial ownership, and an explanation referencing the Rule 10b5-1 plan adopted on June 11, 2025. The signature block shows execution by an attorney-in-fact on 09/25/2025. There is no indication of abnormal or accelerated insider activity that would raise governance flags based on the content provided.

SEC Form 4

FORM 4

UNITED 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

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Trapp Alex

(Last) (First) (Middle)

C/O STANDARDAERO, INC.

6710 NORTH SCOTTSDALE RD., SUITE 250

(Street)

SCOTTSDALE AZ 85253

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
StandardAero, Inc. [ SARO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Strategy Officer

3. Date of Earliest Transaction (Month/Day/Year)
09/23/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. 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 (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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/23/2025		S(1)		4,035	D	$28	10,000	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on June 11, 2025.

	/s/ Steve Sinquefield, Attorney-in-Fact	09/25/2025
	** Signature of Reporting Person	Date
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.

FAQ

What did SARO insider Alex Trapp sell on 09/23/2025?

Alex Trapp sold 4,035 shares of StandardAero common stock on 09/23/2025 at a price of $28 per share.

Was the sale by Alex Trapp pre-planned under a Rule 10b5-1 plan?

Yes; the Form 4 states the sales were effected pursuant to a Rule 10b5-1 plan adopted on June 11, 2025.

How many SARO shares does Alex Trapp beneficially own after the reported transaction?

10,000 shares are reported as beneficially owned by Alex Trapp following the sale, held directly.

Who signed the Form 4 for Alex Trapp and when?

The Form 4 is signed by Steve Sinquefield, Attorney-in-Fact on 09/25/2025.

Does the Form 4 report any derivative transactions for SARO by Alex Trapp?

No derivative securities or option transactions are reported in Table II of this filing.