Comparable stake leader
CITADEL ADVISORS LLC
SEC ownership of Momentus Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001781162.
Disclosed value leader
Juan Manuel Quiroga
Comparable rows
40/50
Latest evidence
20 May 2026
- Public ticker
- MNTS, MNTSW on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
CITADEL ADVISORS LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
40 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
CITADEL ADVISORS LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
20 May 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001781162
- Issuer location
- San Jose, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Momentus Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
CITADEL ADVISORS LLC
Disclosed value leader
Juan Manuel Quiroga
Comparable rows
40/50
Latest evidence
20 May 2026
13D/G
13F
3/4/5
Lead comparable stake: 10%
10 rows are not safely comparable across share classes.
13D/G row: CITADEL ADVISORS LLC
Showing 1-8 of 50 holder rows.
Quick read
CITADEL ADVISORS LLC leads the comparable SEC ownership view at 10%.
40 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens CITADEL ADVISORS LLC's linked filing trail.
Comparable ownership
Top 5
CITADEL ADVISORS LLC
10%
GHIOCELA PROD COM SRL
9%
DAVIDSON KEMPNER CAPITAL MANAGEME...
8.9%
ARMISTICE CAPITAL, LLC
5%
SBI Securities Co., Ltd.
0.04%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| CITADEL ADVISORS LLC |
13D/G
13F
Kenneth Griffin · Company
|
10%
|
$330,612
635,792 shares
|
$0 | 15 Apr 2026 |
| GHIOCELA PROD COM SRL |
13D/G
|
9%
|
$6,519,521
1,500,396 shares
|
$0 | 02 Oct 2024 |
| DAVIDSON KEMPNER CAPITAL MANAGEMENT LP |
13D/G
|
8.9%
|
$5,256,000
1,200,000 shares
|
$0 | 20 May 2026 |
| ARMISTICE CAPITAL, LLC |
13D/G
|
5%
|
$272,142
209,340 shares
|
$0 | 30 Jun 2025 |
| SBI Securities Co., Ltd. |
13D/G
13F
Company
|
0.04%
|
$32,263
7,425 shares
|
$0 | 30 Sep 2024 |
| Diametric Capital, LP |
13F
Company
|
35%
|
$1,379,503
1,483,178 shares
|
— | 31 Mar 2026 |
| ARK Investment Management LLC |
13F
Company
|
15%
|
$584,391
628,310 shares
|
— | 31 Mar 2026 |
| PRELUDE CAPITAL MANAGEMENT, LLC |
13F
Company
|
5.4%
|
$209,959
225,738 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$35,141.
Buys
$35,141
Insiders: 2
Sells
$0
Insiders: 0
Net
+$35,141
Shares: +5,850
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 5,850
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 5,850 | 0 | $35,141 | $0 | +$35,141 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 21 reporting-owner rows connected to Momentus Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
21
Largest Forms 3/4/5 holder
SRC-NI Holdings LLC
Net 12M change
+$35,141
Latest report
21 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| SRC-NI Holdings LLC | 10%+ Owner | $11,390,675 | Mixed | 12 Aug 2021 | ||
| Juan Manuel Quiroga | 10%+ Owner | $11,390,675 | Mixed | 12 Aug 2021 | ||
| Edward K. Freedman | 10%+ Owner | $3,838,825 | Mixed | 12 Aug 2021 | ||
| Eric R. Williams | Chief Financial Officer | $3,325,879 | Mixed | 20 Apr 2023 | ||
| Fred G. Kennedy III | President | $1,239,453 | Mixed | 20 Jan 2022 | ||
| Jikun Kim | Chief Financial Officer | $799,360 | Mixed | 20 Dec 2022 | ||
| Mitchel B. Kugler | Director | $420,000 | Mixed | 18 May 2026 | ||
| Prime Movers Lab Fund I LP | 10%+ Owner | $275,149 | Mixed | 22 Sep 2023 | ||
| John C. Rood | Chief Executive Officer, Director | $204,483 | Mixed | 19 May 2026 | ||
| Dawn A. Harms | Chief Revenue Officer | $176,192 | Mixed | 31 Dec 2022 | ||
| Brian Kabot | Director | $66,501 | +$12,781 | +24% | Mixed | 20 May 2026 |
| Jon Layman | Chief Legal Officer | $52,513 | Mixed | 19 May 2026 | ||
| Chris Hadfield | Director | $36,096 | +$22,360 | +163% | Mixed | 21 May 2026 |
| Robert E. Schwarz | Chief Technology Officer | $24,134 | Mixed | 19 May 2026 | ||
| Lon Ensler | Chief Financial Officer | $19,890 | Mixed | 19 May 2026 | ||
| Linda J. Reiners | Director | $7,783 | Mixed | 18 May 2026 | ||
| Kimberly A. Reed | Director | $7,783 | Mixed | 18 May 2026 | ||
| Victorino Mercado | Director | $7,643 | Mixed | 18 May 2026 | ||
| Paul Ney | Chief Legal Officer & Corp.Sec | $3,631 | Mixed | 20 Nov 2024 | ||
| SBI Securities Co., Ltd. | Other* | Mixed | 30 Aug 2024 |
Recent insider transactions for Momentus Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Chris Hadfield | MNTS | Class A Common Stock | Purchase | 133.3% | $14,380 | $7.19 | 2,000 | 3,500 | 21 May 2026 | Hadfield Inc. |
| Brian Kabot | MNTS | Class A Common Stock | Purchase | 5.61% | $1,379 | $5.52 | 250 | 4,708 | 20 May 2026 | Direct |
| Robert E. Schwarz | MNTS | Class A Common Stock | Award | 33984.2% | 6,457 | 6,476 | 19 May 2026 | Direct | ||
| Robert E. Schwarz | MNTS | Restricted Stock Units | Award | 178% | 10,635 | 16,609 | 19 May 2026 | Direct | ||
| Lon Ensler | MNTS | Class A Common Stock | Award | 5,405 | 5,405 | 19 May 2026 | Direct | |||
| Lon Ensler | MNTS | Restricted Stock Units | Award | 178% | 15,107 | 23,593 | 19 May 2026 | Direct | ||
| John C. Rood | MNTS | Class A Common Stock | Award | 44637.1% | 55,350 | 55,474 | 19 May 2026 | Direct | ||
| John C. Rood | MNTS | Restricted Stock Units | Award | 177.5% | 40,485 | 63,299 | 19 May 2026 | Direct | ||
| Jon Layman | MNTS | Class A Common Stock | Award | 14,270 | 14,270 | 19 May 2026 | Direct | |||
| Jon Layman | MNTS | Restricted Stock Units | Award | 178% | 15,107 | 23,593 | 19 May 2026 | Direct | ||
| Brian Kabot | MNTS | Class A Common Stock | Purchase | 5.94% | $1,404 | $5.62 | 250 | 4,458 | 19 May 2026 | Direct |
| Brian Kabot | MNTS | Class A Common Stock | Options Exercise | 27.7% | 913 | 4,208 | 18 May 2026 | Direct | ||
| Brian Kabot | MNTS | Restricted Stock Units | Award | 6,039 | 6,039 | 18 May 2026 | Direct | |||
| Kimberly A. Reed | MNTS | Class A Common Stock | Options Exercise | 76% | 913 | 2,115 | 18 May 2026 | Direct | ||
| Kimberly A. Reed | MNTS | Restricted Stock Units | Award | 6,039 | 6,039 | 18 May 2026 | Direct | |||
| Victorino Mercado | MNTS | Class A Common Stock | Options Exercise | 78.4% | 913 | 2,077 | 18 May 2026 | Direct | ||
| Victorino Mercado | MNTS | Restricted Stock Units | Award | 6,039 | 6,039 | 18 May 2026 | Direct | |||
| Linda J. Reiners | MNTS | Class A Common Stock | Options Exercise | 76% | 913 | 2,115 | 18 May 2026 | Direct | ||
| Linda J. Reiners | MNTS | Restricted Stock Units | Award | 6,039 | 6,039 | 18 May 2026 | Direct | |||
| Mitchel B. Kugler | MNTS | Restricted Stock Units | Award | 6,039 | 6,039 | 18 May 2026 | Direct | |||
| Chris Hadfield | MNTS | Class A Common Stock | Options Exercise | 94% | 913 | 1,884 | 18 May 2026 | Direct | ||
| Chris Hadfield | MNTS | Restricted Stock Units | Award | 6,039 | 6,039 | 18 May 2026 | Direct | |||
| Brian Kabot | MNTS | Class A Common Stock | Purchase | 128% | $9,999 | $5.40 | 1,850 | 3,295 | 15 May 2026 | Direct |
| Chris Hadfield | MNTS | Class A Common Stock | Purchase | $7,980 | $5.32 | 1,500 | 1,500 | 15 May 2026 | Hadfield Inc. | |
| Robert E. Schwarz | MNTS | Restricted Stock Units | Award | 5,974 | 5,974 | 27 Feb 2026 | Direct | |||
| Jon Layman | MNTS | Restricted Stock Units | Award | 8,486 | 8,486 | 27 Feb 2026 | Direct | |||
| Lon Ensler | MNTS | Restricted Stock Units | Award | 12,092 | 8,486 | 27 Feb 2026 | Direct | |||
| John C. Rood | MNTS | Restricted Stock Units | Award | 22,744 | 22,744 | 27 Feb 2026 | Direct | |||
| John C. Rood | MNTS | Class A Common Stock | Tax liability | -4.98% | -116 | 2,212 | 20 Aug 2025 | Direct | ||
| John C. Rood | MNTS | Class A Common Stock | Options Exercise | 16.3% | 327 | 2,328 | 20 Aug 2025 | Direct | ||
| John C. Rood | MNTS | Restricted Stock Units | Options Exercise | -100% | -327 | 0 | 20 Aug 2025 | Direct | ||
| Lon Ensler | MNTS | Restricted Stock Units | Award | 95,000 | 95,000 | 01 Aug 2025 | Direct |
* marks a reported price that did not pass the local price check.