MSAI · MultiSensor AI Holdings, Inc. · Shareholders & Ownership
Every disclosed holder of MSAI in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns MSAI
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 2,463,993 | 111.71% |
| Insiders (Forms 3, 4, 5) | 0 | 0.00% |
| 13D/G-only blocks | 311,694 | 14.13% |
| Remaining | 570,039 | -25.84% |
| Registered funds (N-PORT, not summed) | 32,524 | 1.47% |
Shares outstanding: 2,205,648, the issuer's latest cover-page count restated onto today's split basis.
Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of MSAI
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
|
678,860 | ||
| 2 |
325 CAPITAL LLC
13F
CIK 1873893 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
662,244 | ||
| 3 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
201,766 | ||
| 4 |
MMCAP International Inc. SPC
13F
CIK 1304857 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
175,250 | ||
| 5 |
WOLVERINE ASSET MANAGEMENT LLC
13F
CIK 1279891 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
158,593 | ||
| 6 |
683 Capital Management, LLC
13F
CIK 1404574 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
150,000 | ||
| 7 |
O'Connor Alternative Investments LLC
13F
CIK 2081629 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
142,585 | ||
| 8 |
Clear Street Group Inc.
13F
CIK 1881567 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
128,278 | ||
| 9 |
Ayrton Capital LLC
13G
CIK 1698148 · Registered investment adviser · Mar 31, 2026
Rule 13d-1(b), qualified institution
|
122,261 | ||
| 10 |
Yakira Capital Management, Inc.
13F
CIK 1584639 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
104,518 | ||
| 11 |
BOOTHBAY FUND MANAGEMENT, LLC
13F
CIK 1549230 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
100,000 | ||
| 12 |
TORONTO DOMINION BANK
13F
CIK 947263 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
99,512 | ||
| 13 |
WHITEBOX ADVISORS LLC
13F
CIK 1257391 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
96,838 | ||
| 14 |
|
89,435 | ||
| 14.1 |
Strahan Gary Eugene
13D
CIK 2004751 · Unknown · Jul 21, 2025
|
82,877 | ||
| 15 |
SANDERS MORRIS HARRIS LLC
13F
CIK 1053994 · Broker-dealer · Sep 30, 2026
|
86,818 | ||
| 16 |
Calamos Advisors LLC
13F
CIK 1316507 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
75,000 | ||
| 17 |
Aristides Capital LLC
13F
CIK 1595521 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
37,500 | ||
| 18 |
Cruiser Capital Advisors, LLC
13F
CIK 1713506 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
37,500 | ||
| 19 |
|
35,425 | ||
| 19.1 |
Steven Winch
13D
CIK 2003540 · Unknown · Dec 19, 2023
|
28,902 | ||
| 20 |
D. E. Shaw & Co., Inc.
13F
CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
31,500 | ||
| 21 |
RIVERNORTH CAPITAL MANAGEMENT, LLC
13F
CIK 1447578 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
31,218 | ||
| 22 |
Bleichroeder LP
13F
CIK 1781002 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
30,562 | ||
| 23 |
GABELLI FUNDS LLC
13F
CIK 1081407 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
27,347 | ||
| 24 |
|
25,201 | ||
| 25 |
|
25,079 | ||
| 26 |
David Gow
13D
CIK 1867616 · Unknown · Dec 19, 2023
|
24,924 | ||
| 27 |
GABELLI & Co INVESTMENT ADVISERS, INC.
13F
CIK 932724 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
24,900 | ||
| 28 |
|
23,491 | ||
| 29 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
21,622 | ||
| 30 |
|
21,097 | ||
| 30.1 |
Peter Baird
13D
CIK 2003544 · Unknown · Dec 19, 2023
|
20,866 | ||
| 31 |
FNY Investment Advisers, LLC
13F
CIK 1742998 · Unknown · Sep 30, 2026
|
20,950 | ||
| 32 |
Jeffrey Eugene Guida
13D
CIK 2006199 · Unknown · Dec 19, 2023
|
19,646 | ||
| 33 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
13,569 | ||
| 34 |
Periscope Capital Inc.
13G
CIK 1695320 · Exempt reporting adviser · Dec 31, 2023
Rule 13d-1(b), qualified institution
|
12,218 | ||
| 35 |
Ancora Advisors LLC
13F
CIK 1446114 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
8,347 | ||
| 36 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
8,053 | ||
| 37 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
7,980 | ||
| 38 |
|
7,726 | ||
| 39 |
|
7,392 | ||
| 40 |
|
7,392 | ||
| 41 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,870 | ||
| 42 |
|
4,234 | ||
| 43 |
Tower Research Capital LLC (TRC)
13F
CIK 1533421 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,756 | ||
| 44 |
|
1,751 | ||
| 45 |
Fidelity Series Total Market Index Fund
Fund
S000065248 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
1,347 | ||
| 46 |
|
1,316 | ||
| 47 |
Fidelity Total Market Index Fund
Fund
S000006026 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
1,290 | ||
| 48 |
Fidelity Nasdaq Composite Index Fund
Fund
S000055366 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
|
285 | ||
| 49 |
SBI Securities Co., Ltd.
13F
CIK 1851815 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
265 | ||
| 50 |
CHILTON CAPITAL MANAGEMENT LLC
13F
CIK 1056859 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
187 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.