Welcome to our dedicated page for Momentus SEC filings (Ticker: MNTSW), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Momentus Inc. filings document the regulatory record for a U.S. commercial space company with Nasdaq-listed Class A common stock and warrants. Recent 8-K disclosures cover shareholder letters, preliminary financial information, Regulation FD communications, press releases and operational updates involving satellite technology, space transportation and in-orbit services.
The filings also record capital-structure activity, including securities purchase agreements, private placements of common stock and pre-funded warrants, conversions of secured convertible notes and terminations of related warrant arrangements. These documents disclose material agreements, financing terms, registered security classes and corporate events affecting the company's public equity and warrant structure.
Layman Jon reported acquisition or exercise transactions in this Form 4 filing.
Momentus Inc. reported that Chief Legal Officer Jon Layman received equity-based compensation on May 19, 2026. He was granted 6,457 shares of Class A Common Stock and 10,635 Restricted Stock Units (RSUs) at no cost. Each RSU represents a contingent right to receive one share of Class A Common Stock and will vest in three equal annual installments from the Vesting Commencement Date, subject to his continued employment.
Layman Jon reported acquisition or exercise transactions in this Form 4 filing.
Momentus Inc. reported that Chief Legal Officer Jon Layman received equity-based compensation on May 19, 2026. He was granted 6,457 shares of Class A Common Stock and 10,635 Restricted Stock Units (RSUs) at no cost. Each RSU represents a contingent right to receive one share of Class A Common Stock and will vest in three equal annual installments from the Vesting Commencement Date, subject to his continued employment.
Momentus Inc. director Brian Kabot increased his stake through a mix of open-market buying and equity awards. On May 19, he bought 250 shares of Class A Common Stock in the open market at $5.615 per share, bringing his direct ownership to 4,458 shares.
On May 18, he acquired 913 shares of Class A Common Stock at no cost through an exercise or conversion of a derivative security. He was also granted 6,039 Restricted Stock Units (RSUs), each representing a right to receive one share of Class A Common Stock. These RSUs vest in full on the earlier of May 18, 2027 or the 2027 Annual Meeting, subject to his continued service on the Board.
Momentus Inc. director Brian Kabot increased his stake through a mix of open-market buying and equity awards. On May 19, he bought 250 shares of Class A Common Stock in the open market at $5.615 per share, bringing his direct ownership to 4,458 shares.
On May 18, he acquired 913 shares of Class A Common Stock at no cost through an exercise or conversion of a derivative security. He was also granted 6,039 Restricted Stock Units (RSUs), each representing a right to receive one share of Class A Common Stock. These RSUs vest in full on the earlier of May 18, 2027 or the 2027 Annual Meeting, subject to his continued service on the Board.
Momentus Inc. director Kimberly A. Reed reported equity compensation activity involving Class A common stock. Reed acquired 913 shares of common stock on May 18, 2026 through the exercise or conversion of a derivative security, bringing her direct common share holdings to 2,115 shares.
On the same date, Reed was granted 6,039 Restricted Stock Units (RSUs), each representing a contingent right to receive one share of Class A common stock. According to the terms, these RSUs will vest in full on the earlier of May 18, 2027 or the day of the 2027 Annual Meeting, provided she continues serving on the Board through that vesting date.
Momentus Inc. director Kimberly A. Reed reported equity compensation activity involving Class A common stock. Reed acquired 913 shares of common stock on May 18, 2026 through the exercise or conversion of a derivative security, bringing her direct common share holdings to 2,115 shares.
On the same date, Reed was granted 6,039 Restricted Stock Units (RSUs), each representing a contingent right to receive one share of Class A common stock. According to the terms, these RSUs will vest in full on the earlier of May 18, 2027 or the day of the 2027 Annual Meeting, provided she continues serving on the Board through that vesting date.
Momentus Inc. director Victorino Mercado reported equity-based compensation activity. He exercised a derivative security into 913 shares of Class A Common Stock, bringing his direct common stock holdings to 2,077 shares. He was also granted 6,039 Restricted Stock Units, each representing a contingent right to one share of Class A Common Stock.
The RSUs will vest in full on the earlier of May 18, 2027 or the day of the 2027 Annual Meeting, subject to his continued service on the Board of Directors through that date. These transactions reflect routine director compensation and equity alignment rather than open-market buying or selling.
Momentus Inc. director Victorino Mercado reported equity-based compensation activity. He exercised a derivative security into 913 shares of Class A Common Stock, bringing his direct common stock holdings to 2,077 shares. He was also granted 6,039 Restricted Stock Units, each representing a contingent right to one share of Class A Common Stock.
The RSUs will vest in full on the earlier of May 18, 2027 or the day of the 2027 Annual Meeting, subject to his continued service on the Board of Directors through that date. These transactions reflect routine director compensation and equity alignment rather than open-market buying or selling.
Momentus Inc. director Linda J. Reiners reported equity compensation activity. On May 18, 2026, she acquired 913 shares of Class A common stock through an exercise or conversion of a derivative security, bringing her direct common stock holdings to 2,115 shares.
She was also granted 6,039 Restricted Stock Units, each representing one share of Class A common stock. These RSUs will vest in full on the earlier of May 18, 2027 or the 2027 annual meeting, if she continues serving on the board through that date.
Momentus Inc. director Linda J. Reiners reported equity compensation activity. On May 18, 2026, she acquired 913 shares of Class A common stock through an exercise or conversion of a derivative security, bringing her direct common stock holdings to 2,115 shares.
She was also granted 6,039 Restricted Stock Units, each representing one share of Class A common stock. These RSUs will vest in full on the earlier of May 18, 2027 or the 2027 annual meeting, if she continues serving on the board through that date.
Kugler Mitchel B. reported acquisition or exercise transactions in this Form 4 filing.
Momentus Inc. director Mitchel B. Kugler received a grant of restricted stock units as equity compensation. The award covers 6,039 RSUs, each representing a contingent right to receive one share of Momentus Inc. Class A Common Stock.
The RSUs will vest in full on the earlier of May 18, 2027 or the day of the company’s 2027 annual meeting, provided Kugler continues to serve on the Board of Directors through that date. Following this grant, he holds 6,039 RSUs directly.
Kugler Mitchel B. reported acquisition or exercise transactions in this Form 4 filing.
Momentus Inc. director Mitchel B. Kugler received a grant of restricted stock units as equity compensation. The award covers 6,039 RSUs, each representing a contingent right to receive one share of Momentus Inc. Class A Common Stock.
The RSUs will vest in full on the earlier of May 18, 2027 or the day of the company’s 2027 annual meeting, provided Kugler continues to serve on the Board of Directors through that date. Following this grant, he holds 6,039 RSUs directly.
Momentus Inc. director Chris Hadfield reported equity-related transactions involving Class A Common Stock. He acquired 913 shares through the exercise or conversion of a derivative security at a stated price of $0.0000 per share, bringing his direct holdings to 1,884 shares.
He was also granted 6,039 Restricted Stock Units, each representing a contingent right to receive one share of Class A Common Stock. These RSUs will vest in full on the earlier of May 18, 2027 or the day of the 2027 Annual Meeting, subject to his continued service on the Board of Directors through that vesting date.
Momentus Inc. director Chris Hadfield reported equity-related transactions involving Class A Common Stock. He acquired 913 shares through the exercise or conversion of a derivative security at a stated price of $0.0000 per share, bringing his direct holdings to 1,884 shares.
He was also granted 6,039 Restricted Stock Units, each representing a contingent right to receive one share of Class A Common Stock. These RSUs will vest in full on the earlier of May 18, 2027 or the day of the 2027 Annual Meeting, subject to his continued service on the Board of Directors through that vesting date.
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.
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.
Momentus Inc. director Chris Hadfield, through Hadfield Inc., completed an open-market purchase of 1,500 shares of Class A Common Stock at $5.32 per share, held indirectly.
He also holds 971 Class A shares directly and 913 Restricted Stock Units, each representing one share. These RSUs vest in full on the earlier of June 30, 2026 or the day before the 2026 annual meeting, subject to his continued board service.
Momentus Inc. director Chris Hadfield, through Hadfield Inc., completed an open-market purchase of 1,500 shares of Class A Common Stock at $5.32 per share, held indirectly.
He also holds 971 Class A shares directly and 913 Restricted Stock Units, each representing one share. These RSUs vest in full on the earlier of June 30, 2026 or the day before the 2026 annual meeting, subject to his continued board service.
Momentus Inc. received a Schedule 13G filing naming Davidson Kempner-related entities and Anthony A. Yoseloff as Reporting Persons for Class A Common Stock, CUSIP 60879E408. The filing lists a par value of $0.00001 per share and states the Reporting Persons may have been deemed to beneficially own more than 5% of the Class A Common Stock; the cover page reports 0% for percent of class. The filing provides reporting addresses and organizational details and is signed by Anthony A. Yoseloff on 05/15/2026.
Momentus Inc. received a Schedule 13G filing naming Davidson Kempner-related entities and Anthony A. Yoseloff as Reporting Persons for Class A Common Stock, CUSIP 60879E408. The filing lists a par value of $0.00001 per share and states the Reporting Persons may have been deemed to beneficially own more than 5% of the Class A Common Stock; the cover page reports 0% for percent of class. The filing provides reporting addresses and organizational details and is signed by Anthony A. Yoseloff on 05/15/2026.