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Disclosery

MLAC MOUNTAIN LAKE ACQUISITION CO

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Common (common)

47 managers (47 13F filers) reported a position in MLAC shares at 2026-03-31, 23,092,175 shares in all. 3 filers opened a position and 5 filers sold out during the quarter.

Managers
47
13F filers
47
New
3
Added
9
Reduced
7
Sold out
5
Shares held by filers
23,092,175

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
TENOR CAPITAL MANAGEMENT Co., L.P.2,000,000$21.1M0.32%013F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC1,900,000$20M0.2%013F-HRTimelineGroup
BERKLEY W R CORP1,877,833$19.8M1.06%+1,515,30013F-HRTimeline
MIZUHO SECURITIES USA LLCin group MIZUHO FINANCIAL GROUP INC1,710,141$18M0.42%+752,77213F-HRTimelineGroup
Polar Asset Management Partners Inc.1,497,259$15.8M0.37%+17,32413F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC1,405,969$14.8M0.24%+26213F-HRTimelineGroup
First Trust Capital Management L.P.in group FIRST TRUST ADVISORS LP980,393$10.3M0.54%013F-HRTimelineGroup
Alberta Investment Management Corp980,000$10.3M0.06%013F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC971,757$10.2M0.16%+8,38913F-HRTimelineGroup
Westchester Capital Management, LLCin group Westchester Capital Managemen…887,700$9.35M0.45%013F-HRTimelineGroup
Linden Advisors LPin group Linden Advisors LP875,000$9.21M0.05%013F-HRTimelineGroup
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC856,946$9.02M0.19%+170,25413F-HRTimelineGroup
Karpus Management, Inc.620,220$6.53M0.2%013F-HRTimeline
CoinFund Management LLC566,000$5.96M16.85%+105,00013F-HRTimeline
RIVERNORTH CAPITAL MANAGEMENT, LLC500,000$5.27M0.27%013F-HRTimeline
LMR Partners LLPin group LMR Partners LLP496,989$5.23M0.05%013F-HRTimelineGroup
Crossingbridge Advisors, LLC442,460$4.66M0.84%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC424,430$4.47M<0.01%013F-HRTimelineGroup
TORONTO DOMINION BANKin group TORONTO DOMINION BANK350,000$3.69M0.01%-33,69513F-HRTimelineGroup
RLH Capital LLC312,540$3.29M1.67%13F-HRTimeline
WHITEBOX ADVISORS LLC300,000$3.16M0.04%013F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…260,429$2.74M0.02%013F-HRTimelineGroup
MOORE CAPITAL MANAGEMENT, LP200,000$2.11M0.08%013F-HRTimeline
Shaolin Capital Management LLC200,000$2.11M0.09%-199,99813F-HRTimeline
Jain Global LLC196,786$2.07M0.03%-178,46413F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.193,702$2.04M<0.01%013F-HRTimelineGroup
Radcliffe Capital Management, L.P.193,057$2.03M0.15%013F-HRTimeline
Ghisallo Capital Management LLC200,000$2.02M0.06%013F-HRTimeline
L1 Global Manager Pty Ltd170,000$1.79M1.44%013F-HRTimeline
Quarry LP162,540$1.71M0.34%+12,54013F-HRTimeline
ARISTEIA CAPITAL, L.L.C.150,000$1.58M0.04%013F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT150,000$1.58M0.02%013F-HRTimeline
O'Connor Alternative Investments LLC149,912$1.58M0.08%13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC147,302$1.55M<0.01%-20,14613F-HRTimelineGroup
Periscope Capital Inc.125,000$1.32M0.23%-125,00013F-HRTimeline
DLD Asset Management, LP124,750$1.31M0.13%013F-HRTimeline
UBS Group AGin group UBS Group AG120,502$1.27M<0.01%-88,78613F-HRTimelineGroup
Feynman Point Asset Management LLC100,000$1.05M3.62%013F-HRTimeline
Mint Tower Capital Management B.V.100,000$1.05M0.1%013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO49,916$526K<0.01%+4313F-HR/ATimelineGroup
DELTEC ASSET MANAGEMENT LLC40,000$421K0.08%013F-HRTimeline
Clear Street Group Inc.in group Clear Street Group Inc.36,699$386K<0.01%013F-HRTimelineGroup
Wellspring Financial Advisors, LLC35,000$369K0.03%013F-HRTimeline
Rangeley Capital, LLC15,000$158K0.17%new13F-HRTimeline
Schonfeld Strategic Advisors LLC14,623$154K<0.01%new13F-HRTimeline
Hara Capital LLC1,250$13.2K0.01%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY70$737<0.01%-2413F-HRTimelineGroup