Mountain Lake Acquisiti Class AMLAA
13F holders, Q2 2026 (June 30)59holders +28
10new positions
4sold out
3famous investors
$9.93avg. 13F price*
At the end of Q2 2026, 59 institutions reported holding Mountain Lake Acquisiti Class A (MLAA) in their 13F filings, up 28 from Q1 2026. 10 opened new positions and 4 sold out. The largest holders were Aristeia Capital, L.L.C. ($21.7M), Adage Capital Partners Gp, L.L.C. ($20.9M) and Magnetar Financial LLC ($19.9M). 3 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Mountain Lake Acquisiti Class A
- CUSIP
- G6301L109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 10 | $27.6M |
| Exits | 4 | $13.9M |
All 13F filers, Q1 2026 → Q2 2026: 5,148,334 shares bought and 2,948,925 shares sold, net +2,199,409 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 59 holders
| Aristeia Capital, L.L.C. | 0.82% | Add +0.1% | 2,189,405 | $21.7M |
| Adage Capital Partners Gp, L.L.C. | 0.03% | No change | 2,100,000 | $20.9M |
| Magnetar Financial LLC | 0.20% | No change | 2,000,000 | $19.9M |
| Alberta Investment Management Corp | 0.11% | No change | 1,750,000 | $17.4M |
| Linden Advisors LP | 0.66% | No change | 1,500,000 | $14.9M |
| AQR Arbitrage LLC | 0.25% | Add +2.4% | 1,449,082 | $14.4M |
| Highbridge Capital Management LLC | 0.86% | Add +372.7% | 1,309,459 | $13.0M |
| Kryger Capital LLC | 0.72% | New | 1,270,887 | $12.6M |
| LMR Partners LLP | 0.11% | No change | 1,250,000 | $12.4M |
| D. E. Shaw & Co. | 0.01% | Add +232.3% | 1,080,000 | $10.7M |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 0.72% | No change | 1,059,588 | $10.5M |
| Fort Baker Capital Management LP | 0.98% | New | 1,000,000 | $9.9M |
| Sona Asset Management (us) LLC | 0.48% | No change | 1,000,000 | $9.9M |
| Glazer Capital, LLC | 0.24% | Reduce -2.2% | 950,000 | $9.4M |
| Westchester Capital Management, LLC | 0.43% | Add +38.9% | 853,517 | $8.5M |
| Polar Asset Management Partners Inc. | 0.19% | Reduce -20.0% | 800,000 | $7.9M |
| Millennium Management | 0.01% | No change | 765,000 | $7.6M |
| BNP Paribas Financial Markets | 0.00% | No change | 742,958 | $7.4M |
| First Trust Capital Management L.P. | 0.35% | No change | 600,000 | $6.0M |
| Verition Fund Management LLC | 0.04% | Reduce -34.7% | 587,590 | $5.8M |
| Two Sigma Investments, LP | 0.00% | No change | 567,675 | $5.6M |
| Rivernorth Capital Management, LLC | 0.24% | No change | 499,531 | $5.0M |
| Picton Mahoney Asset Management | 0.05% | No change | 500,000 | $5.0M |
| MMCAP International Inc. SPC | 0.43% | No change | 500,000 | $5.0M |
| Moore Capital Management, LP | 0.12% | No change | 500,000 | $5.0M |
| Radcliffe Capital Management, L.P. | 0.47% | Add +13.4% | 458,116 | $4.5M |
| Berkley W R Corp. | 0.22% | No change | 447,794 | $4.4M |
| Shaolin Capital Management LLC | 0.49% | Reduce -41.9% | 428,537 | $4.3M |
| Sculptor Capital LP | 0.07% | Add +36.6% | 427,532 | $4.2M |
| Whitebox Advisors LLC | 0.21% | No change | 400,000 | $4.0M |
| Wolverine Asset Management LLC | 0.20% | Add +42.8% | 392,778 | $3.9M |
| Ghisallo Capital Management LLC | 0.09% | No change | 375,000 | $3.7M |
| Periscope Capital Inc. | 0.58% | Reduce -30.0% | 350,000 | $3.5M |
| Wealthspring Capital LLC | 0.76% | Reduce -0.5% | 336,480 | $3.3M |
| Lineage Point Capital LP | 0.61% | Reduce -1.9% | 294,214 | $2.9M |
| Mint Tower Capital Management B.V. | 0.61% | No change | 250,000 | $2.5M |
| Schonfeld Strategic Advisors LLC | 0.01% | Reduce -32.9% | 235,000 | $2.3M |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.01% | No change | 200,000 | $2.0M |
| RLH Capital LLC | 0.72% | No change | 150,000 | $1.5M |
| Rangeley Capital, LLC | 1.25% | New | 127,791 | $1.3M |
| Mizuho Securities USA LLC | 0.02% | New | 125,405 | $1.2M |
| Readystate Asset Management LP | 0.08% | New | 125,000 | $1.2M |
| CSS LLC | 0.14% | Reduce -45.1% | 104,501 | $1.0M |
| DLD Asset Management, LP | 0.27% | No change | 100,000 | $993K |
| HGC Investment Management Inc. | 0.20% | New | 100,000 | $993K |
| Quarry LP | 0.12% | Add +0.3% | 75,233 | $747K |
| Hudson Bay Capital Management LP | 0.00% | Reduce -50.0% | 50,000 | $497K |
| Centiva Capital, LP | 0.01% | Reduce -72.2% | 41,777 | $415K |
| Virtu Financial LLC | 0.01% | Reduce -54.4% | 36,389 | $361K |
| Deltec Asset Management LLC | 0.04% | Reduce -40.0% | 30,000 | $298K |
| Cable Car Capital, LP | 0.01% | No change | 30,000 | $298K |
| Clear Street Group Inc. | 0.00% | Reduce -81.5% | 25,208 | $250K |
| PenderFund Capital Management Ltd. | 0.10% | Add +368.0% | 23,400 | $232K |
| Citadel Advisors | 0.00% | New | 16,059 | $159K |
| Meteora Capital, LLC | 0.01% | New | 12,532 | $124K |
| TrueMark Investments, LLC | 0.01% | Reduce -4.1% | 11,031 | $110K |
| Arax Advisory Partners | 0.00% | New | 1,500 | $15K |
| JPMorgan Chase & Co. | 0.00% | New | 1,219 | $12K |
| Morgan Stanley | 0.00% | Add +35.3% | 23 | $228 |
"% of holder's portfolio" is MLAA's weight in each manager's 13F, not the share of Mountain Lake Acquisiti Class A the manager owns.