Momentus Inc. (MNTS) Ownership
MNTS ownership summary
as of October 18, 2026- Institutions
- 11.7% of shares outstanding
- Insiders
- 0.44% of shares outstanding
- Shares outstanding
- 22.0M
- Float
- 21.9M shares available to trade
- Short interest
- 8.62% 1.9M shares short
- Days to cover
- 3.09 short interest up 1.8% vs prior month
- Institutions 11.67%
- Insiders 0.44%
- Other investors 87.89%
MNTS top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Davidson Kempner Capital Management LP | 3.87% | 850K | $2.2M | +850,000 (0.0%) | June 30, 2026 |
| 2 | BlackRock Inc | 1.60% | 352K | $917,425 | +351,461 (+817,351.2%) | June 30, 2026 |
| 3 | Citadel Advisors Llc | 1.34% | 294K | $768,293 | +294,365 (0.0%) | June 30, 2026 |
| 4 | Weiss Asset Management LP | 0.82% | 179K | $468,276 | +179,416 (0.0%) | June 30, 2026 |
| 5 | Jefferies Financial Group Inc | 0.66% | 146K | $381,060 | +146,000 (0.0%) | June 30, 2026 |
| 6 | UBS Group AG | 0.65% | 142K | $371,672 | +136,343 (+2,249.9%) | June 30, 2026 |
| 7 | Geode Capital Management, LLC | 0.54% | 119K | $309,838 | +96,942 (+445.3%) | June 30, 2026 |
| 8 | Vanguard Capital Management, LLC | 0.53% | 116K | $302,183 | +113,550 (+5,094.2%) | June 30, 2026 |
| 9 | State Street Corp | 0.34% | 74K | $193,599 | +74,176 (0.0%) | June 30, 2026 |
| 10 | Penserra Capital Management, LLC | 0.29% | 65K | $169,081 | −65,623 (−50.3%) | June 30, 2026 |
| 11 | Vanguard Fiduciary Trust Co | 0.25% | 54K | $141,731 | +51,550 (+1,872.5%) | June 30, 2026 |
| 12 | Northern Trust Corp | 0.10% | 22K | $58,477 | +22,405 (0.0%) | June 30, 2026 |
| 13 | LPL Financial Corp | 0.09% | 21K | $54,356 | +20,826 (0.0%) | June 30, 2026 |
| 14 | GSA Capital Partners LLP | 0.09% | 20K | $50,926 | +19,512 (0.0%) | June 30, 2026 |
| 15 | Engineers Gate Manager LP | 0.07% | 15K | $39,933 | +15,300 (0.0%) | June 30, 2026 |
| 16 | Parisi Gray Wealth Management | 0.06% | 12K | $31,722 | +12,154 (0.0%) | June 30, 2026 |
| 17 | Susquehanna International Group, LLP | 0.05% | 12K | $30,735 | +11,776 (0.0%) | June 30, 2026 |
| 18 | Pure Financial Advisors, INC. | 0.05% | 10K | $26,103 | +10,001 (0.0%) | June 30, 2026 |
| 19 | International Assets Investment Management, LLC | 0.05% | 10K | $26,100 | +10,000 (0.0%) | June 30, 2026 |
| 20 | Legacy Capital Wealth Partners, LLC | 0.05% | 10K | $26,100 | +10,000 (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 19 holders added 2.4M shares and 1 cut 66K.
MNTS top mutual fund and ETF holders
9 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Procure Space ETF | 0.39% | 86K | $225,003 | +507 (+0.6%) | September 30, 2026 |
| 2 | Fidelity Extended Market Index | 0.26% | 56K | $146,358 | +7,747 (+16.0%) | August 31, 2026 |
| 3 | Abante Quant Value FI | 0.12% | 26K | $67,646 | — | August 31, 2026 |
| 4 | Fidelity Total Market Index | 0.10% | 22K | $56,694 | — | August 31, 2026 |
| 5 | Fidelity Series Total Market Index | 0.08% | 17K | $44,289 | — | August 31, 2026 |
| 6 | Themes Transatlantic Defense ETF | 0.04% | 8,304 | $21,673 | −66 (−0.8%) | September 30, 2026 |
| 7 | Vanguard U.S. Eq Idx £ Acc | 0.03% | 5,708 | $14,898 | — | August 31, 2026 |
| 8 | Victory Extended Market Index | 0.01% | 1,195 | $3,119 | +1,195 (0.0%) | June 30, 2026 |
| 9 | JHVIT Total Stock Market Index I | <0.01% | 350 | $914 | +350 (0.0%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
MNTS insider transactions
latest 13| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2023-12-01 | Brian Kabot | Sell | $649.74 | 1 | $650 |
| 2023-11-01 | Brian Kabot | Sell | $874.65 | 1 | $875 |
| 2023-10-02 | Brian Kabot | Sell | $542.28 | 1 | $542 |
| 2023-09-25 | Movers Lab Fund I Lp Prime | Sell | $509.80 | 125 | $63,725 |
| 2023-09-22 | Movers Lab Fund I Lp Prime | Sell | $597.26 | 54 | $32,252 |
| 2023-09-13 | Movers Lab Fund I Lp Prime | Sell | $1,127.05 | 74 | $83,402 |
| 2023-09-11 | Movers Lab Fund I Lp Prime | Sell | $1,391.94 | 18 | $25,055 |
| 2023-09-07 | Movers Lab Fund I Lp Prime | Sell | $1,626.85 | 47 | $76,462 |
| 2023-09-01 | Brian Kabot | Sell | $2,736.41 | 1 | $2,736 |
| 2023-08-17 | Victorino Mercado | Sell | $3,873.45 | 2 | $7,747 |
| 2023-08-01 | Brian Kabot | Sell | $5,247.90 | 1 | $5,248 |
| 2023-05-30 | Brian Kabot | Sell | $4,123.35 | 1 | $4,123 |
| 2023-05-01 | Brian Kabot | Sell | $5,247.90 | 1 | $5,248 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
MNTS shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns MNTS
Institutional investors own 11.7% of Momentus's shares and insiders 0.44%. The largest holder is Davidson Kempner Capital Management LP with 3.87% of the shares (850K), as of June 30, 2026. Among the top 20 institutions, 19 added shares and 1 reduced their stake in the latest filings. Short interest is 8.62% of the float, or 3.09 days of average trading volume. The share count rose 10.9% since 2019.
Related: MNTS analyst forecast, MNTS key metrics. See the MNTS stock overview for the latest quote and news.
MNTS ownership FAQ
Who owns the most Momentus stock?
The largest shareholders of Momentus are Davidson Kempner Capital Management LP (3.87%), BlackRock Inc (1.60%), Citadel Advisors Llc (1.34%), Weiss Asset Management LP (0.82%), Jefferies Financial Group Inc (0.66%).
What percentage of Momentus is owned by institutions?
Institutions hold 11.7% of Momentus's shares outstanding; insiders hold 0.44%.
Which funds own Momentus?
The largest fund holders of Momentus are Procure Space ETF (0.39%), Fidelity Extended Market Index (0.26%), Abante Quant Value FI (0.12%), Fidelity Total Market Index (0.10%), Fidelity Series Total Market Index (0.08%).
What is Momentus's short interest?
1.9M shares of Momentus were sold short, 8.62% of the float; at the average daily volume it would take 3.09 days to cover.
Are insiders buying or selling Momentus?
Of the latest 13 reported insider transactions in Momentus (since May 1, 2023), 0 were purchases and 13 were sales.
How many shares of Momentus are outstanding?
Momentus has 22.0M shares outstanding, of which 21.9M are in the public float.