MLAA · Mountain Lake Acquisition Corp. II · Shareholders & Ownership
Every disclosed holder of MLAA 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 MLAA
13F quarter Jun 30, 2026No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 48,672,983 | 99.37% |
| Insiders (Forms 3, 4, 5) | 0 | 0.00% |
| 13D/G-only blocks | 12,516,000 | 25.55% |
| Remaining | 12,208,983 | -24.93% |
| Registered funds (N-PORT, not summed) | 812,807 | 1.66% |
Shares outstanding: 48,980,000, 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 MLAA
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Mountain Lake Acquisition Sponsor II LLC
13D
CIK 2095442 · Unknown · Jan 28, 2026
|
12,516,000 | ||
| 2 |
ARISTEIA CAPITAL, L.L.C.
13F
CIK 1080171 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
3,284,107 | ||
| 3 |
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F
CIK 1165408 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
2,800,000 | ||
| 4 |
Magnetar Financial LLC
13F
CIK 1352851 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
2,775,000 | ||
| 5 |
Alberta Investment Management Corp
13F
CIK 1463559 · Non-US institution · Jun 30, 2026
Classes MLAA, MLAAW
|
2,625,000 | ||
| 6 |
Linden Advisors LP
13F
CIK 1279396 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
2,249,999 | ||
| 7 |
AQR Arbitrage LLC
13F
CIK 1167456 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
2,173,623 | ||
| 8 |
|
1,875,000 | ||
| 9 |
TENOR CAPITAL MANAGEMENT Co., L.P.
13F
CIK 1346554 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
1,589,382 | ||
| 10 |
SONA ASSET MANAGEMENT (US) LLC
13F
CIK 1856405 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
1,500,000 | ||
| 11 |
HIGHBRIDGE CAPITAL MANAGEMENT LLC
13F
CIK 919185 · Registered investment adviser · Jun 30, 2026
|
1,309,459 | ||
| 12 |
GLAZER CAPITAL, LLC
13F
CIK 1076809 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
1,300,000 | ||
| 13 |
Polar Asset Management Partners Inc.
13F
CIK 1326389 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
1,300,000 | ||
| 14 |
Kryger Capital LLC
13F
CIK 2123957 · Registered investment adviser · Jun 30, 2026
|
1,270,887 | ||
| 15 |
|
1,242,500 | ||
| 16 |
Westchester Capital Management, LLC
13F
CIK 1512805 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
1,160,778 | ||
| 17 |
Verition Fund Management LLC
13F
CIK 1454027 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
1,144,174 | ||
| 18 |
|
1,114,437 | ||
| 19 |
Fort Baker Capital Management LP
13F
CIK 1688382 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
1,023,500 | ||
| 20 |
|
942,686 | ||
| 21 |
Calamos Advisors LLC
13F
CIK 1316507 · Registered investment adviser · Jun 30, 2026
|
783,000 | ||
| 22 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
|
765,000 | ||
| 23 |
|
750,000 | ||
| 24 |
MOORE CAPITAL MANAGEMENT, LP
13F
CIK 1448574 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
750,000 | ||
| 25 |
PICTON MAHONEY ASSET MANAGEMENT
13F
CIK 1539041 · Non-US institution · Jun 30, 2026
Classes MLAA, MLAAW
|
750,000 | ||
| 26 |
RIVERNORTH CAPITAL MANAGEMENT, LLC
13F
CIK 1447578 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
749,531 | ||
| 27 |
Radcliffe Capital Management, L.P.
13F
CIK 1218275 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
710,006 | ||
| 28 |
Shaolin Capital Management LLC
13F
CIK 1766806 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
647,186 | ||
| 29 |
OMERS ADMINISTRATION Corp
13F
CIK 1053321 · Pension or benefit plan · Jun 30, 2026
|
626,400 | ||
| 30 |
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
13F
CIK 1535845 · Non-US institution · Jun 30, 2026
|
625,000 | ||
| 31 |
First Trust Capital Management L.P.
13F
CIK 1604488 · Registered investment adviser · Jun 30, 2026
|
600,000 | ||
| 32 |
WHITEBOX ADVISORS LLC
13F
CIK 1257391 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
600,000 | ||
| 33 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
|
567,675 | ||
| 34 |
Periscope Capital Inc.
13F
CIK 1695320 · Exempt reporting adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
562,500 | ||
| 35 |
First Trust Merger Arbitrage Fund
Fund
S000048195 · Registered fund · Jun 30, 2026
INVESTMENT MANAGERS SERIES TRUST II, not summed
|
515,308 | ||
| 36 |
|
510,000 | ||
| 37 |
WOLVERINE ASSET MANAGEMENT LLC
13F
CIK 1279891 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
508,080 | ||
| 38 |
Wealthspring Capital LLC
13F
CIK 1844495 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
504,720 | ||
| 39 |
Sculptor Capital LP
13F
CIK 1054587 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
479,711 | ||
| 40 |
BERKLEY W R CORP
13F
CIK 11544 · Insurance company · Jun 30, 2026
|
447,794 | ||
| 41 |
Ghisallo Capital Management LLC
13F
CIK 1825214 · Registered investment adviser · Jun 30, 2026
|
375,000 | ||
| 42 |
|
375,000 | ||
| 43 |
Schonfeld Strategic Advisors LLC
13F
CIK 1665241 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
310,000 | ||
| 44 |
TUDOR INVESTMENT CORP ET AL
13F
CIK 923093 · Registered investment adviser · Jun 30, 2026
|
300,000 | ||
| 45 |
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS
13F
CIK 1083190 · Unknown · Jun 30, 2026
Classes MLAA, MLAAW
|
290,300 | ||
| 46 |
|
285,164 | ||
| 47 |
DLD Asset Management, LP
13F
CIK 1578299 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
250,000 | ||
| 48 |
Qube Research & Technologies Ltd
13F
CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
|
250,000 | ||
| 49 |
READYSTATE ASSET MANAGEMENT LP
13F
CIK 1900923 · Registered investment adviser · Jun 30, 2026
Classes MLAA, MLAAW
|
225,736 | ||
| 50 |
|
225,000 |
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.
Showing 1–50 of 78 holders
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