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Data sources

Public disclosures only. Scores flag unusual patterns and are not evidence of wrongdoing. Not investment advice.

RH CHAIN…
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
01Overview02Follow the Money03Daily Brief04Live05Congress06Corporate Insiders07Government Money08Political Influence09Institutions10Washington Network11Follow the Power12Disclosure Clock13AI Investigator14Watchlist
ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
Data sources
SEC FORM 455m ago
HOUSE PTR54m ago
SEC 13F54m ago
ROBINHOOD CHAIN54m ago
SEC FORM 4/Option exerciseVerified data

Reiners Linda J. reported MNTS

Director · Momentus Inc. · Class A Common Stock

Side
M
Value
—
Shares
913
Price
—
Executed
May 18, 2026
Disclosed
May 20, 2026
Disclosure timeline2 days from execution to publication · legal deadline 2 business days
May 18 executedMay 20, 2026 disclosed

MNTS · daily

Yahoo Finance chart API
▲Execution▼Disclosure●Material company filing●Other disclosed buy●Other disclosed sellUnofficial public endpoint; daily OHLCV, split-adjusted. Replace with a licensed feed for production.

Insider Score

Experimental signal
21/ 100 · ROUTINE
Methodology →
  • Transaction type0 / 20

    Option exercise — administrative, little informational value

  • Relative size+13 / 25

No reported dollar value · 76.0% of prior position

  • Filing timing0 / 15

    Disclosed 2 business days after execution (deadline: 2)

  • Historical behavior+8 / 15

    First recorded trade by this actor in this security

  • Frequency & clustering0 / 15

    No clustered activity in the dataset

  • Market events0 / 10

    No material company filing within 60 days after the trade

    • The Insider Score measures how far a disclosure deviates from normal filing patterns. A high score is a prompt for research, not evidence of illegal insider trading.

    Other disclosed activity · MNTS

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    9
    EL
    Ensler LonChief Financial Officer
    MNTSMomentus Inc.
    Grant or award
    		A—
    5,405 sh
    		May 19, 2026May 21, 2026
    traded May 19, 2026
    		+2dSEC FORM 4

    Evidence

    21
    EL
    Ensler LonChief Financial Officer
    MNTSMomentus Inc.
    Grant or award
    		A—
    15.1K sh
    		May 19, 2026May 21, 2026
    traded May 19, 2026
    		+2dSEC FORM 4

    Evidence

    9
    KB
    Kugler Mitchel B.Director
    MNTSMomentus Inc.
    Grant or award
    		A—
    6,039 sh
    		May 18, 2026May 20, 2026
    traded May 18, 2026
    		+2dSEC FORM 4

    Evidence

    9
    RJ
    Reiners Linda J.Director
    MNTSMomentus Inc.
    Grant or award
    		A—
    6,039 sh
    		May 18, 2026May 20, 2026
    traded May 18, 2026
    		+2dSEC FORM 4

    Evidence

    21
    RA
    Reed Kimberly A.Director
    MNTSMomentus Inc.
    Option exercise
    		M—
    913 sh
    		May 18, 2026May 20, 2026
    traded May 18, 2026
    		+2dSEC FORM 4

    Evidence

    9
    RA
    Reed Kimberly A.Director
    MNTSMomentus Inc.
    Grant or award
    		A—
    6,039 sh
    		May 18, 2026May 20, 2026
    traded May 18, 2026
    		+2dSEC FORM 4

    Evidence

    21
    MV
    Mercado VictorinoDirector
    MNTSMomentus Inc.
    Option exercise
    		M—
    913 sh
    		May 18, 2026May 20, 2026
    traded May 18, 2026
    		+2dSEC FORM 4

    Evidence

    9
    MV
    Mercado VictorinoDirector
    MNTSMomentus Inc.
    Grant or award
    		A—
    6,039 sh
    		May 18, 2026May 20, 2026
    traded May 18, 2026
    		+2dSEC FORM 4

    Evidence

    21
    HC
    Hadfield ChrisDirector
    MNTSMomentus Inc.
    Option exercise
    		M—
    913 sh
    		May 18, 2026May 20, 2026
    traded May 18, 2026
    		+2dSEC FORM 4

    Evidence

    9
    HC
    Hadfield ChrisDirector
    MNTSMomentus Inc.
    Grant or award
    		A—
    6,039 sh
    		May 18, 2026May 20, 2026
    traded May 18, 2026
    		+2dSEC FORM 4

    Evidence

    Evidence

    Verified data

    Read directly from the primary public document; every field below is as reported by the filer.

    Source

    Document
    SEC Form 4
    Publisher
    U.S. Securities and Exchange Commission (EDGAR)
    Document ID
    0001873933-26-000002
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    May 18, 2026
    Published
    May 20, 2026
    Ingested by INSIDER
    Nov 5, 03:57 UTC
    Last re-read
    Nov 5, 03:57 UTC

    Extracted facts

    Filer
    Reiners Linda J.
    Role
    Director
    Transaction
    Option exerciseAs filed: “M”
    Asset
    Momentus Inc.
    Ticker
    MNTS
    Shares
    913
    Price per share
    $0
    Execution date (reported)
    May 18, 2026
    Owned after transaction
    2,115 shares
    Days from execution to publication
    2

    What this establishes

    Reiners Linda J. filed this Form 4 reporting a option exercise of MNTS on May 18, 2026. It became public on May 20, 2026. The filing establishes the reported transaction and the filer's stated role. It does not establish why the trade was made or what the filer knew.

    Extraction

    Method
    Form 4 XML
    Confidence
    1.00
    Director
    Reiners Linda J.cik:0001873933
    Issuer
    Momentus Inc.cik:0001781162

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.