Vault-13

PROEM ACQUISITION CORP I PAACU

UNIT 01/29/2031 · Unit · CUSIP G7341A129

14 institutional holders -29 vs Q1 2026
2,416,5272.4m shares reported held*
$24.4mreported value*
0 new 1 added 3 reduced 29 sold out net sold ≈ $100.6m (-10.0m 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 ($2.4m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $10.08.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0204060Q1 26: 43Q2 26: 1414Q1 26Q2 26
Numbers
QuarterHolders
Q1 202643
Q2 202614

Biggest buyers

Tuttle Capital Management, LLC Added +1,154+1.2k

Biggest sellers

Polar Asset Management Partners Inc. Sold out -1,200,000-1.2m
ARISTEIA CAPITAL, L.L.C. Sold out -1,040,000-1.0m
Magnetar Financial LLC Sold out -1,000,000-1.0m
Linden Advisors LP Sold out -1,000,000-1.0m
MILLENNIUM MANAGEMENT LLC Sold out -843,500-843.5k
GLAZER CAPITAL, LLC Sold out -649,860-649.9k
AQR Arbitrage LLC Sold out -440,059-440.1k
BERKLEY W R CORP Sold out -397,720-397.7k
Periscope Capital Inc. Sold out -350,000-350.0k
WHITEBOX ADVISORS LLC Sold out -300,000-300.0k

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
Linden Capital L.P. 13G · passive investor new · filed 2026-02-18 7.5% new 1.0m≈ $10.1m 2026-02-18
Polar Asset Management Partners Inc. 13G · institution new · filed 2026-05-15 6.5% new 1.2m≈ $12.1m 2026-05-15
ARISTEIA CAPITAL, L.L.C. 13G · institution new · filed 2026-05-14 5.7% new 1.0m≈ $10.5m 2026-05-14
Magnetar Financial LLC 13G · institution new · filed 2026-05-13 5.4% new 1.0m≈ $10.1m 2026-05-13

Fell to 5% or below in the last year: MILLENNIUM MANAGEMENT LLC (4.1%, 2026-02-20)

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—0——
Q2 20260—0——
Q3 20260—0——

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 LMR Partners LLP 0.05% of their portfolio LONDON, X0 650,000650.0k $6.6m $6.6m 0.05% Unchanged
2 Tekne Capital Management, LLC 1.65% of their portfolio NEW YORK, NY 500,000500.0k $5.0m $5.0m 1.65% Unchanged
3 Khan Imran 100.00% of their portfolio DALLAS, TX 292,500292.5k $2.9m $2.9m 100.00% Unchanged
4 OMERS ADMINISTRATION Corp 0.02% of their portfolio TORONTO, A6 260,000260.0k $2.6m $2.6m 0.02% Unchanged
5 Proem Advisors LLC 0.50% of their portfolio Dallas, TX 242,924242.9k $2.4m $2.4m 0.50% Unchanged
6 Lineage Point Capital LP 0.41% of their portfolio PALM BEACH, FL 200,000200.0k $2.0m $2.0m 0.41% Unchanged
7 Calamos Advisors LLC 0.01% of their portfolio NAPERVILLE, IL 148,010148.0k $1.5m $1.5m 0.01% Unchanged
8 Westchester Capital Management, LLC 0.06% of their portfolio VALHALLA, NY 117,188117.2k $1.2m $1.2m 0.06% Reduced -5.0k -5,000
9 BOOTHBAY FUND MANAGEMENT, LLC 0.02% of their portfolio NEW YORK, NY 100,000100.0k $1.0m $1.0m 0.02% Unchanged
10 Bulldog Investors, LLP 0.11% of their portfolio SADDLE BROOK, NJ 50,00050.0k $504.0k $504.0k 0.11% Unchanged
11 Quarry LP 0.06% of their portfolio NEW YORK, NY 37,50037.5k $378.0k $378.0k 0.06% Unchanged
12 Warberg Asset Management LLC 0.07% of their portfolio WINNETKA, IL 24,56424.6k $247.6k $247.6k 0.07% Reduced -26.9k -26,936
13 Clear Street Group Inc. 0.00% of their portfolio NEW YORK, NY 20,61120.6k $207.8k $207.8k 0.00% Reduced -161.3k -161,303
14 Tuttle Capital Management, LLC 0.11% of their portfolio RIVERSIDE, CT 16,15416.2k $162.8k $162.8k 0.11% Added +1.2k +1,154