13F Insight
DOSSIER · 13F Holders · Q1 2026

MOUNTAIN LAKE ACQUISITION CO

47 institutions still hold MOUNTAIN LAKE ACQUISITION CO as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G6301B101·47 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$190M
visible holders
Holders
47
filers reporting
Concentration
11.09%
TENOR CAPITAL MANAGEMENT Co., L.P. #1
top holder share
AI Holders Summary · Q1 2026

47 institutions reported MOUNTAIN LAKE ACQUISITION CO in Q1 2026. TENOR CAPITAL MANAGEMENT Co., L.P. leads at 11.1% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
TENOR CAPITAL MANAGEMENT Co., L.P.
CIK 0001346554
$21M2.0M0.32%Q1 202602
BERKLEY W R CORP
CIK 0000011544
$20M1.9M1.06%Q1 202603
MIZUHO SECURITIES USA LLC
CIK 0000812291
$18M1.7M0.42%Q2 202604
Polar Asset Management Partners Inc.
CIK 0001326389
$16M1.5M0.31%Q1 202605
AQR Arbitrage LLC
CIK 0001167456
$15M1.4M0.31%Q4 202506
First Trust Capital Management L.P.
CIK 0001604488
$10M980K0.54%Q1 202607
Alberta Investment Management Corp
CIK 0001463559· Sovereign
$10M980K0.06%Q1 202608
WOLVERINE ASSET MANAGEMENT LLC
CIK 0001279891
$10M972K0.10%Q1 202609
Westchester Capital Management, LLC
CIK 0001512805
$9M888K0.42%Q1 202610
LINDEN ADVISORS LP
CIK 0001279396
$9M875K0.05%Q1 202611
GLAZER CAPITAL, LLC
CIK 0001076809
$9M857K0.19%Q1 202612
Karpus Management, Inc.
CIK 0001048703
$7M620K0.20%Q1 202613
CoinFund Management LLC
CIK 0002087493
$6M566K16.85%Q1 202614
RIVERNORTH CAPITAL MANAGEMENT, LLC
CIK 0001447578
$5M500K0.26%Q1 202615
LMR Partners LLP
CIK 0001578621
$5M497K0.01%Q1 202616
Crossingbridge Advisors, LLC
CIK 0001770024
$5M442K0.84%Q1 202617
GOLDMAN SACHS GROUP INC
CIK 0000886982
$4M424K0.00%Q1 202618
TORONTO DOMINION BANK
CIK 0000947263
$4M350K0.01%Q1 202619
RLH Capital LLC
CIK 0002008031
$3M313K1.67%Q1 202620
WHITEBOX ADVISORS LLC
CIK 0001257391
$3M300K0.04%Q1 2026
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