Momentus Inc.
Momentus Inc. (MNTS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MNTS · as of Sep 30, 2025
Ownership Breakdown
21
Institutional Holders
$262,377
Total Inst. Value
▼ $875,435 vs Q2
5.73M
Shares Outstanding
freeFloat 99.68%
255,877
13F Shares Held
▼ 676,695 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MNTS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC guided missiles & space vehicles & parts | 88.9K | 1.70% | 1.70% | $117.38M | Nov 7, 2025 | ▲ 59.7K |
JORDAN PARK GROUP LLC guided missiles & space vehicles & parts | 57.1K | 1.09% | 1.09% | $71,000 | Nov 3, 2025 | NEW |
GEODE CAPITAL MANAGEMENT, LLC guided missiles & space vehicles & parts | 42.6K | 81.45% | 81.45% | $56.19M | Nov 12, 2025 | ▲ 13.1K |
XTX TOPCO LTD guided missiles & space vehicles & parts | 28.0K | 53.49% | 53.49% | $36.90M | Nov 14, 2025 | NEW |
SBI SECURITIES CO., LTD. guided missiles & space vehicles & parts | 16.9K | 32.25% | 32.25% | $22.25M | Nov 5, 2025 | ▲ 9.8K |
UBS GROUP AG guided missiles & space vehicles & parts | 15.1K | 28.97% | 28.97% | $19.98M | Nov 13, 2025 | ▼ 54.8K |
TOWER RESEARCH CAPITAL LLC (TRC) guided missiles & space vehicles & parts | 4.2K | 8.08% | 8.08% | $5.57M | Nov 14, 2025 | ▲ 1.7K |
BLACKROCK, INC. guided missiles & space vehicles & parts | 765 | 1.46% | 1.46% | $1.01M | Nov 12, 2025 | — held |
MORGAN STANLEY guided missiles & space vehicles & parts | 643 | 1.23% | 1.23% | $848,000 | May 27, 2026 | ▲ 229 |
ADVISOR GROUP HOLDINGS, INC. guided missiles & space vehicles & parts | 633 | 1.21% | 1.21% | $839,000 | Nov 14, 2025 | ▲ 452 |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
7
Increased
+85.0K shares2
New Positions
first time holders2
Decreased
−54.8K shares2
Sold Out
fully exitedNet shares change (top 50)
+30.2K
+85.0K / −54.8K
Net new holders
+5
2 new / 2 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MNTS insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
25
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Hadfield Chris director | May 21, 2026 | Purchase | 2,000 | $7.19 | $14.4K | 3.5K | Form 4 ↗ |
Kabot Brian director | May 20, 2026 | Purchase | 250 | $5.51 | $1.4K | 4.7K | Form 4 ↗ |
SCHWARZ ROBERT E Chief Technology Officer | May 19, 2026 | Award | 10,635 | — | — | 16.6K | Form 4 ↗ |
SCHWARZ ROBERT E Chief Technology Officer | May 19, 2026 | Award | 6,457 | — | — | 6.5K | Form 4 ↗ |
Ensler Lon Chief Financial Officer | May 19, 2026 | Award | 15,107 | — | — | 23.6K | Form 4 ↗ |
Ensler Lon Chief Financial Officer | May 19, 2026 | Award | 5,405 | — | — | 5.4K | Form 4 ↗ |
Rood John C. Chief Executive Officer | May 19, 2026 | Award | 40,485 | — | — | 63.3K | Form 4 ↗ |
Rood John C. Chief Executive Officer | May 19, 2026 | Award | 55,350 | — | — | 55.5K | Form 4 ↗ |
Layman Jon Chief Legal Officer | May 19, 2026 | Award | 15,107 | — | — | 23.6K | Form 4 ↗ |
Layman Jon Chief Legal Officer | May 19, 2026 | Award | 14,270 | — | — | 14.3K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Momentus Inc. (MNTS) is primarily owned by institutional investors, who hold approximately 4.5% of total shares outstanding. Company insiders own approximately 0.32%, while retail and public investors account for the remaining 95.22%.
The largest institutional shareholder of Momentus Inc. is VANGUARD GROUP INC, holding approximately 88,926 shares — equal to 1.70% of outstanding shares — as of September 30, 2025.
A total of 21 institutional investors currently hold MNTS stock, with a combined institutional value of approximately $262,377 as of the most recent 13F filing period.
Frequently asked questions
MNTS ownershipMomentus Inc. (MNTS) is primarily owned by institutional investors, who hold approximately 4.5% of shares. The largest shareholder is VANGUARD GROUP INC with a 1.70% stake. Company insiders hold 0.32%. Data sourced from SEC Form 13F as of September 30, 2025.