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Disclosery

MLAC MOUNTAIN LAKE ACQUISITION CO

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Common (common)

48 managers (48 13F filers) reported a position in MLAC shares at 2025-12-31, 22,762,784 shares in all. 8 filers opened a position and 9 filers sold out during the quarter.

Managers
48
13F filers
48
New
8
Added
9
Reduced
18
Sold out
9
Shares held by filers
22,762,784

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, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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$20.8M0.29%+1,500,00013F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC1,900,000$19.8M0.19%013F-HRTimelineGroup
Polar Asset Management Partners Inc.1,479,935$15.4M0.31%-6513F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC1,405,707$14.6M0.31%-94,19913F-HRTimelineGroup
First Trust Capital Management L.P.in group FIRST TRUST ADVISORS LP980,393$10.2M0.62%-24,60713F-HRTimelineGroup
Alberta Investment Management Corp980,000$10.2M0.06%013F-HR/ATimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC963,368$10M0.14%-679,34313F-HRTimelineGroup
MIZUHO SECURITIES USA LLCin group MIZUHO FINANCIAL GROUP INC957,369$9.93M0.16%+529,10213F-HRTimelineGroup
Westchester Capital Management, LLCin group Westchester Capital Managemen…887,700$9.23M0.43%-294,57113F-HRTimelineGroup
Linden Advisors LPin group Linden Advisors LP875,000$9.1M0.06%013F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP710,158$7.39M0.01%-51,09213F-HRTimelineGroup
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC686,692$7.14M0.19%+62,08013F-HRTimelineGroup
Decagon Asset Management LLP657,592$6.84M2.88%new13F-HRTimeline
Karpus Management, Inc.620,220$6.45M0.2%-50,00013F-HR/ATimeline
Meteora Capital, LLC579,318$6.02M0.5%new13F-HRTimeline
RIVERNORTH CAPITAL MANAGEMENT, LLC500,000$5.2M0.25%013F-HRTimeline
LMR Partners LLPin group LMR Partners LLP496,989$5.17M0.05%-3,01113F-HRTimelineGroup
CoinFund Management LLC461,000$4.79M8.25%13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC424,430$4.41M<0.01%-21,66413F-HR/ATimelineGroup
J. Goldman & Co LP423,564$4.41M0.17%new13F-HRTimeline
Shaolin Capital Management LLC399,998$4.16M0.16%new13F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK383,695$3.99M0.01%+227,04813F-HRTimelineGroup
Jain Global LLC375,250$3.9M0.04%-124,75013F-HRTimeline
BERKLEY W R CORP362,533$3.77M0.21%+144,47313F-HRTimeline
WHITEBOX ADVISORS LLC300,000$3.12M0.05%013F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…260,429$2.71M0.02%-439,57113F-HRTimelineGroup
Periscope Capital Inc.250,000$2.6M0.5%-174,38813F-HRTimeline
UBS Group AGin group UBS Group AG209,288$2.18M<0.01%+196,39813F-HRTimelineGroup
MOORE CAPITAL MANAGEMENT, LP200,000$2.08M0.04%013F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.193,702$2.01M<0.01%-898,79813F-HRTimelineGroup
Radcliffe Capital Management, L.P.193,057$2.01M0.11%013F-HRTimeline
Ghisallo Capital Management LLC200,000$2M0.09%new13F-HRTimeline
L1 Global Manager Pty Ltd170,000$1.77M1.16%13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC167,448$1.74M<0.01%-260,13913F-HRTimelineGroup
ARISTEIA CAPITAL, L.L.C.150,000$1.56M0.04%013F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT150,000$1.56M0.02%-100,00013F-HRTimeline
Quarry LP150,000$1.56M0.26%new13F-HRTimeline
OCONNOR, A Distinct Business Unit of UB…149,912$1.56M0.04%-100,08813F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
DLD Asset Management, LP124,750$1.3M0.13%+24,75013F-HRTimeline
Mint Tower Capital Management B.V.100,000$1.04M0.13%013F-HRTimeline
Feynman Point Asset Management LLC100,000$1.04M2.08%13F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO49,873$519K<0.01%new13F-HRTimelineGroup
DELTEC ASSET MANAGEMENT LLC40,000$416K0.07%-10,00013F-HRTimeline
Clear Street Group Inc.in group Clear Street Group Inc.36,699$382K<0.01%+32,83013F-HRTimelineGroup
Wellspring Financial Advisors, LLC35,000$364K0.03%013F-HRTimeline
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…20,371$212K0.01%-22,94913F-HRTimelineGroup
Hara Capital LLC1,250$13K0.01%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY94$978<0.01%+1513F-HR/ATimelineGroup