Vault-13

MUZERO ACQUISITION CORP MUZE

CL A ORD SHS · Common Stock · CUSIP G8775A106

47 institutional holders +18 vs Q1 2026
17,202,29417.2m shares reported held*
$170.8mreported value*
21 new 6 added 2 reduced 3 sold out net bought ≈ $80.3m (+8.1m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $9.93.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0204060Q1 26: 29Q2 26: 4747Q1 26Q2 26
Numbers
QuarterHolders
Q1 202629
Q2 202647

Biggest buyers

ARISTEIA CAPITAL, L.L.C. New +1,562,429+1.6m
AQR Arbitrage LLC New +804,016+804.0k
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND New +650,000+650.0k
Alberta Investment Management Corp New +600,000+600.0k
Kryger Capital LLC New +557,058+557.1k
MILLENNIUM MANAGEMENT LLC New +550,000+550.0k
RIVERNORTH CAPITAL MANAGEMENT, LLC New +500,000+500.0k
WOLVERINE ASSET MANAGEMENT LLC Added +412,785+412.8k
BNP PARIBAS FINANCIAL MARKETS New +368,244+368.2k
Periscope Capital Inc. New +349,800+349.8k

Biggest sellers

Shaolin Capital Management LLC Reduced -115,417-115.4k
Clear Street Group Inc. Reduced -49,604-49.6k
Meteora Capital, LLC Sold out -3,208-3.2k
HIGHBRIDGE CAPITAL MANAGEMENT LLC Sold out -1,000-1.0k
UBS Group AG Sold out -150-150

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Muzero Acquisition Sponsors LLC 13D · may seek influence new · filed 2026-02-09
Stated purposeIn connection with the organization of the Issuer, on October 22, 2025, 6,708,333 Class B Ordinary Shares (the "Founder Shares") were purchased by the Sponsor for the amount of $25,000, pursuant to a Securities Subscription Agreement, dated as of October 22, 2025, by and between the Sponsor and the Issuer (the "Founder Share Purchase Agreement"), as more fully described in Item 6 of this Schedule 13D which information is incorporated herein by reference. On February 2, 2026, simultaneously with the consummation of the Issuer's Initial Public Offering (the "IPO"), the Sponsor purchased 335,938 units ("Placement Units") of the Issuer at $10.00 per Placement Unit, pursuant to a Private Placement Units Purchase Agreement, dated as of January 29, 2026, by and between the Issuer and the Sponsor … Full filing
 25.8% new 7.0m≈ $69.9m 2026-02-09
Adage Capital Management, L.P. 13G · institution new · filed 2026-05-13 7.6% new 1.6m≈ $15.6m 2026-05-13

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
101Q4 24: 0 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 0 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 0 sellingQ1 26: 1 buyingQ1 26: 0 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—0——
Q1 20250—0——
Q2 20250—0——
Q3 20250—0——
Q4 20250—0——
Q1 20261$3.4m0——
Q2 20260—0——
Q3 20260—0——

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.02% of their portfolio Boston, MA 1,575,0001.6m $15.6m $15.6m 0.02% Unchanged
2 ARISTEIA CAPITAL, L.L.C. 0.24% of their portfolio GREENWICH, CT 1,562,4291.6m $15.5m $15.5m 0.24% New
3 Magnetar Financial LLC 0.09% of their portfolio EVANSTON, IL 944,550944.5k $9.4m $9.4m 0.09% Unchanged
4 AQR Arbitrage LLC 0.11% of their portfolio Greenwich, CT 804,016804.0k $8.0m $8.0m 0.11% New
5 TENOR CAPITAL MANAGEMENT Co., L.P. 0.11% of their portfolio NEW YORK, NY 800,000800.0k $7.9m $7.9m 0.11% Unchanged
6 SONA ASSET MANAGEMENT (US) LLC 0.30% of their portfolio NEW YORK, NY 800,000800.0k $7.9m $7.9m 0.30% Unchanged
7 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.01% of their portfolio TORONTO, A6 650,000650.0k $6.5m $6.5m 0.01% New
8 Alberta Investment Management Corp 0.03% of their portfolio EDMONTON, A0 600,000600.0k $6.0m $6.0m 0.03% New
9 Kryger Capital LLC 0.32% of their portfolio HAMILTON, D0 557,058557.1k $5.5m $5.5m 0.32% New
10 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 550,000550.0k $5.5m $5.5m 0.00% New
11 GLAZER CAPITAL, LLC 0.13% of their portfolio New York, NY 512,218512.2k $5.1m $5.1m 0.13% Added +65 +65
12 RIVERNORTH CAPITAL MANAGEMENT, LLC 0.24% of their portfolio WEST PALM BEACH, FL 500,000500.0k $5.0m $5.0m 0.24% New
13 Hudson Bay Capital Management LP 0.02% of their portfolio STAMFORD, CT 441,418441.4k $4.4m $4.4m 0.02% Unchanged
14 Radcliffe Capital Management, L.P. 0.31% of their portfolio BALA CYNWYD, PA 416,337416.3k $4.1m $4.1m 0.31% Added +15.9k +15,937
15 WOLVERINE ASSET MANAGEMENT LLC 0.05% of their portfolio CHICAGO, IL 412,897412.9k $4.1m $4.1m 0.05% Added +412.8k +412,785
16 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 368,761368.8k $3.7m $3.7m 0.00% Added +43.8k +43,761
17 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 368,244368.2k $3.7m $3.7m 0.00% New
18 Periscope Capital Inc. 0.55% of their portfolio Toronto, A6 349,800349.8k $3.5m $3.5m 0.55% New
19 Shaolin Capital Management LLC 0.19% of their portfolio Miami, FL 334,583334.6k $3.3m $3.3m 0.19% Reduced -115.4k -115,417
20 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 317,187317.2k $3.1m $3.1m 0.00% Unchanged
21 COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.01% of their portfolio HARRISBURG, PA 300,000300.0k $3.0m $3.0m 0.01% New
22 MMCAP International Inc. SPC 0.25% of their portfolio GRAND CAYMAN, E9 300,000300.0k $3.0m $3.0m 0.25% New
23 MOORE CAPITAL MANAGEMENT, LP 0.07% of their portfolio NEW YORK, NY 300,000300.0k $3.0m $3.0m 0.07% New
24 PICTON MAHONEY ASSET MANAGEMENT 0.03% of their portfolio Toronto, A6 299,998300.0k $3.0m $3.0m 0.03% New
25 Polar Asset Management Partners Inc. 0.05% of their portfolio TORONTO, A6 275,000275.0k $2.7m $2.7m 0.05% Unchanged
26 StoneX Group Inc. 0.10% of their portfolio NEW YORK, NY 255,150255.2k $2.5m $2.5m 0.10% Added +87.9k +87,852
27 WHITEBOX ADVISORS LLC 0.04% of their portfolio MINNEAPOLIS, MN 250,000250.0k $2.5m $2.5m 0.04% Unchanged
28 Verition Fund Management LLC 0.02% of their portfolio GREENWICH, CT 250,000250.0k $2.5m $2.5m 0.02% Unchanged
29 First Trust Capital Management L.P. 0.14% of their portfolio CHICAGO, IL 250,000250.0k $2.5m $2.5m 0.14% Unchanged
30 BERKLEY W R CORP 0.12% of their portfolio Greenwich, CT 248,700248.7k $2.5m $2.5m 0.12% Unchanged
31 Crossingbridge Advisors, LLC 0.40% of their portfolio PLEASANTVILLE, NY 225,000225.0k $2.2m $2.2m 0.40% New
32 Linden Advisors LP 0.01% of their portfolio New York, NY 200,000200.0k $2.0m $2.0m 0.01% Unchanged
33 Ghisallo Capital Management LLC 0.04% of their portfolio BOSTON, MA 200,000200.0k $2.0m $2.0m 0.04% Unchanged
34 Centiva Capital, LP 0.06% of their portfolio New York, NY 174,937174.9k $1.7m $1.7m 0.06% New
35 Context Capital Management, LLC 0.03% of their portfolio LAJOLLA, CA 150,000150.0k $1.5m $1.5m 0.03% Unchanged
36 Mint Tower Capital Management B.V. 0.18% of their portfolio AMSTERDAM, P7 150,000150.0k $1.5m $1.5m 0.18% Unchanged
37 Clear Street Group Inc. 0.00% of their portfolio NEW YORK, NY 138,518138.5k $1.4m $1.4m 0.00% Reduced -49.6k -49,604
38 DLD Asset Management, LP 0.08% of their portfolio NEW YORK, NY 100,000100.0k $993.0k $993.0k 0.08% Unchanged
39 L1 Global Manager Pty Ltd 0.56% of their portfolio Melbourne, C3 70,00070.0k $695.1k $695.1k 0.56% Unchanged
40 DELTEC ASSET MANAGEMENT LLC 0.07% of their portfolio New York, NY 50,00050.0k $496.5k $496.5k 0.07% Unchanged
41 ABC ARBITRAGE SA 0.04% of their portfolio PARIS, I0 40,00040.0k $397.2k $397.2k 0.04% New
42 HEIGHTS CAPITAL MANAGEMENT, INC 0.09% of their portfolio SAN FRANCISCO, CA 39,29939.3k $390.2k $390.2k 0.09% New
43 TORONTO DOMINION BANK 0.00% of their portfolio TORONTO, ONTARIO, A6 25,01925.0k $248.4k $248.4k 0.00% New
44 Virtu Financial LLC 0.01% of their portfolio New York, NY 16,13916.1k $160.0k $160.0k 0.01% New
45 ROBINSON CAPITAL MANAGEMENT, LLC 0.07% of their portfolio GROSSE POINTE FARMS, MI 15,00015.0k $148.9k $148.9k 0.07% New
46 Cable Car Capital, LP 0.01% of their portfolio SAN FRANCISCO, CA 15,00015.0k $148.9k $148.9k 0.01% New
47 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 3636 $357 $357 0.00% Added +27 +27