Director at Momentus (NASDAQ: MNTS) makes open-market share purchase

Rhea-AI Filing Summary

Momentus Inc. director Chris Hadfield, through indirect owner Hadfield Inc., bought 2,000 shares of Class A Common Stock in an open-market purchase at $7.19 per share. After this transaction, the filing shows 3,500 shares of this stock class held indirectly.

Insider Trade Summary

Net Buyer: 2,000 shares ($14,380)

Net Buy 1 txn

Insider Hadfield Chris

Role null

Bought 2,000 shs ($14K)

Type	Security	Shares	Price	Value
Purchase	Class A Common Stock	2,000	$7.19	$14K

Holdings After Transaction: Class A Common Stock — 3,500 shares (Indirect, Hadfield Inc.)

Footnotes (1)

Key Figures

Shares purchased: 2,000 shares Purchase price: $7.19 per share Shares held after trade: 3,500 shares +1 more

4 metrics

Shares purchased 2,000 shares Open-market purchase of Class A Common Stock

Purchase price $7.19 per share Price for the 2,000-share open-market buy

Shares held after trade 3,500 shares Indirect holdings following the transaction

Net buy shares 2,000 shares Net buy direction for this Form 4 period

Key Terms

open-market purchase, Class A Common Stock, indirect ownership

3 terms

open-market purchase financial

"transaction_action: open-market purchase"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Class A Common Stock financial

"security_title: Class A Common Stock"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

indirect ownership financial

"ownership_type: indirect; nature_of_ownership: Hadfield Inc."

Form 4 Insider Transactions: What Each Field Means →

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

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^*

Hadfield Chris

(Last) (First) (Middle)

C/O MOMENTUS INC.

1762 AUTOMATION PARKWAY

(Street)

SAN JOSE CALIFORNIA 95131

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Momentus Inc. [ MNTS ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/21/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	05/21/2026		P		2,000	A	$7.19	3,500	I	Hadfield Inc.

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:

	/s/ Chris Hadfield	05/22/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Momentus (MNTS) report for Chris Hadfield?

Momentus reported that director Chris Hadfield, via Hadfield Inc., completed an open-market purchase of 2,000 shares of Class A Common Stock. The trade was reported as a routine Form 4 insider transaction for indirect ownership.

How many Momentus (MNTS) shares did Chris Hadfield buy and at what price?

Chris Hadfield, through Hadfield Inc., bought 2,000 shares of Momentus Class A Common Stock at $7.19 per share. This was disclosed as an open-market purchase on the Form 4 insider filing.

What are Chris Hadfield’s Momentus (MNTS) holdings after this Form 4 trade?

After the reported transaction, the Form 4 shows 3,500 shares of Momentus Class A Common Stock held indirectly. These shares are attributed to Hadfield Inc., reflecting Hadfield’s indirect ownership position following the purchase.

Is Chris Hadfield’s Momentus (MNTS) trade a direct or indirect holding?

The filing classifies Chris Hadfield’s position as indirect ownership. The 2,000-share open-market purchase and the resulting 3,500-share balance are held through Hadfield Inc., rather than directly in his personal name.

What does the Form 4 say about buying versus selling Momentus (MNTS) shares?

The Form 4 shows only a buy transaction for Momentus shares. It records a single open-market purchase of 2,000 Class A shares and no sales, resulting in a net-buy direction for this reporting period.