Vault-13

PLUTONIAN ACQUISITION CORP I PLUN

ORD CL A · Common Stock · CUSIP G71382108

19 institutional holders
4,784,2494.8m shares reported held*
34.0% of all shares outstanding*
$47.6mreported value*

* 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. Shares outstanding: 14.1m as of 2026-07-15, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $9.95.

Biggest buyers

HIGHBRIDGE CAPITAL MANAGEMENT LLC New +992,077+992.1k
TORONTO DOMINION BANK New +646,282+646.3k
Crossingbridge Advisors, LLC New +500,000+500.0k
MIZUHO SECURITIES USA LLC New +318,114+318.1k
D. E. Shaw & Co., Inc. New +318,000+318.0k
Shaolin Capital Management LLC New +314,538+314.5k
WHITEBOX ADVISORS LLC New +250,000+250.0k
WOLVERINE ASSET MANAGEMENT LLC New +245,215+245.2k
BERKLEY W R CORP New +198,610+198.6k
StoneX Group Inc. New +186,951+187.0k

Biggest sellers

None

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
HIGHBRIDGE CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-08-14 8.7% new 992.1k≈ $9.9m 2026-08-14
Magnetar Financial LLC 13G · institution new · filed 2026-08-13 5.7% new 650.0k≈ $6.5m 2026-08-13

Fell to 5% or below in the last year: Feis Equities LLC (3.3%, 2026-07-27)

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.

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 HIGHBRIDGE CAPITAL MANAGEMENT LLC 0.34% of their portfolio NEW YORK, NY 992,077992.1k $9.9m $9.9m 0.34% New
2 TORONTO DOMINION BANK 0.01% of their portfolio TORONTO, ONTARIO, A6 646,282646.3k $6.4m $6.4m 0.01% New
3 Crossingbridge Advisors, LLC 0.88% of their portfolio PLEASANTVILLE, NY 500,000500.0k $5.0m $5.0m 0.88% New
4 MIZUHO SECURITIES USA LLC 0.03% of their portfolio NEW YORK, NY 318,114318.1k $3.1m $3.1m 0.03% New
5 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 318,000318.0k $3.2m $3.2m 0.00% New
6 Shaolin Capital Management LLC 0.18% of their portfolio Miami, FL 314,538314.5k $3.1m $3.1m 0.18% New
7 WHITEBOX ADVISORS LLC 0.04% of their portfolio MINNEAPOLIS, MN 250,000250.0k $2.5m $2.5m 0.04% New
8 WOLVERINE ASSET MANAGEMENT LLC 0.03% of their portfolio CHICAGO, IL 245,215245.2k $2.4m $2.4m 0.03% New
9 BERKLEY W R CORP 0.10% of their portfolio Greenwich, CT 198,610198.6k $2.0m $2.0m 0.10% New
10 StoneX Group Inc. 0.07% of their portfolio NEW YORK, NY 186,951187.0k $1.9m $1.9m 0.07% New
11 Periscope Capital Inc. 0.28% of their portfolio Toronto, A6 177,528177.5k $1.8m $1.8m 0.28% New
12 Clear Street Group Inc. 0.00% of their portfolio NEW YORK, NY 135,974136.0k $1.4m $1.4m 0.00% New
13 BOOTHBAY FUND MANAGEMENT, LLC 0.02% of their portfolio NEW YORK, NY 100,910100.9k $1.0m $1.0m 0.02% New
14 HEIGHTS CAPITAL MANAGEMENT, INC 0.23% of their portfolio SAN FRANCISCO, CA 100,000100.0k $995.0k $995.0k 0.23% New
15 Hudson Bay Capital Management LP 0.00% of their portfolio STAMFORD, CT 100,000100.0k $995.0k $995.0k 0.00% New
16 RLH Capital LLC 0.48% of their portfolio Great Neck, NY 100,000100.0k $995.0k $995.0k 0.48% New
17 L1 Global Manager Pty Ltd 0.40% of their portfolio Melbourne, C3 50,00050.0k $497.5k $497.5k 0.40% New
18 Quarry LP 0.08% of their portfolio NEW YORK, NY 50,00050.0k $497.5k $497.5k 0.08% New
19 SHP Wealth Management 0.00% of their portfolio PLYMOUTH, MA 5050 $498 $498 0.00% New