STOCK TITAN

Director at Momentus (MNTS) adds 1,850 shares in open-market buy

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

Rhea-AI Filing Summary

Momentus Inc. director Brian Kabot reported an open-market purchase of 1,850 shares of Class A Common Stock at an average price of $5.4046 per share. After this trade, his directly held stake increased to 3,295 shares. The transaction was executed in multiple trades within a price range of $5.275 to $5.6099, with the reported price reflecting the weighted average.

Positive

  • None.

Negative

  • None.
Insider Kabot Brian
Role null
Bought 1,850 shs ($10K)
Type Security Shares Price Value
Purchase Class A Common Stock 1,850 $5.4046 $10K
Holdings After Transaction: Class A Common Stock — 3,295 shares (Direct, null)
Footnotes (1)
  1. This transaction was executed in multiple trades at prices ranging from $5.275 to $5.6099. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. The reporting person was previously reported as a beneficial owner of securities held by SRC-NI Holdings, LLC. The number of shares reported in Column 5 as direct ownership is greater than previously reported due to a distribution of shares by SRC-NI Holdings, LLC to its investors.
Shares purchased 1,850 shares Open-market buy on 2026-05-15
Average purchase price $5.4046 per share Weighted average across multiple trades
Price range of trades $5.275–$5.6099 Execution range for this transaction
Shares owned after 3,295 shares Direct holdings following transaction
Net insider share change 1,850 shares Net buy according to transaction summary
open-market purchase financial
"The transaction is described as an open-market purchase coded as “P.”"
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
"The filing reports trades in Class A Common Stock of Momentus Inc."
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.
weighted average price financial
"The price reported reflects the weighted average price across multiple trades."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
beneficial owner financial
"The reporting person was previously reported as a beneficial owner of securities held by SRC-NI Holdings, LLC."
A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.
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*
Kabot Brian

(Last)(First)(Middle)
1345 ABBOT KINNEY BLVD.

(Street)
VENICE CALIFORNIA 90291

(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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026
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 Stock05/15/2026P1,850A$5.4046(1)3,295(2)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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. This transaction was executed in multiple trades at prices ranging from $5.275 to $5.6099. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
2. The reporting person was previously reported as a beneficial owner of securities held by SRC-NI Holdings, LLC. The number of shares reported in Column 5 as direct ownership is greater than previously reported due to a distribution of shares by SRC-NI Holdings, LLC to its investors.
/s/ Brian Kabot05/19/2026
** 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 insider transaction did Momentus (MNTS) disclose for Brian Kabot?

Momentus reported that director Brian Kabot bought 1,850 shares of Class A Common Stock in an open-market transaction. The shares were acquired at a weighted average price of $5.4046 per share, increasing his directly held position to 3,295 shares after the trade.

At what price did Brian Kabot buy Momentus (MNTS) shares?

Brian Kabot bought 1,850 Momentus Class A shares at a weighted average price of $5.4046. The filing notes multiple trades executed between $5.275 and $5.6099, with the reported figure representing the overall weighted average price for the transaction.

How many Momentus (MNTS) shares does Brian Kabot own after this transaction?

Following the reported open-market purchase, Brian Kabot directly owns 3,295 shares of Momentus Class A Common Stock. This total reflects the addition of 1,850 shares acquired in the reported transaction, as disclosed in the Form 4 insider filing with the SEC.

Was Brian Kabot’s Momentus (MNTS) trade a buy or a sell?

The Form 4 shows Brian Kabot executed a buy, specifically an open-market purchase coded as “P.” He acquired 1,850 shares of Momentus Class A Common Stock, increasing his direct holdings to 3,295 shares after the transaction reported in the filing.

Did Brian Kabot’s Momentus (MNTS) purchase occur in one trade or multiple trades?

The filing states the transaction was executed in multiple trades within a price range of $5.275 to $5.6099. The reported transaction price of $5.4046 per share is a weighted average across those individual trades, summarizing the overall execution.