Vault-13

PROEM ACQUISITION CORP I PAAC

ORD SHS · Common Stock · CUSIP G7341A103

32 institutional holders
10,223,40510.2m shares reported held*
57.7% of all shares outstanding*
$100.8mreported 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: 17.7m as of 2026-08-11, 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 ≈ $9.86.

Biggest buyers

Polar Asset Management Partners Inc. New +1,200,000+1.2m
ARISTEIA CAPITAL, L.L.C. New +1,040,000+1.0m
Magnetar Financial LLC New +1,000,000+1.0m
Linden Advisors LP New +1,000,000+1.0m
MILLENNIUM MANAGEMENT LLC New +843,500+843.5k
GLAZER CAPITAL, LLC New +687,600+687.6k
AQR Arbitrage LLC New +450,173+450.2k
BERKLEY W R CORP New +397,720+397.7k
Periscope Capital Inc. New +349,800+349.8k
Clear Street Group Inc. New +323,852+323.9k

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
Proem SPAC Partners I LLC 13D · may seek influence new · filed 2026-03-04
Stated purposeFounder Shares In connection with the organization of the Issuer, in August 2025, the Sponsor paid $25,000 to cover certain of the Issuer's initial public offering costs in exchange for 4,983,333 ordinary shares, (the "Founder Shares"), for approximately $0.005 per share. Up to 650,000 of the founder shares will be surrendered for no consideration depending on the extent to which the underwriters' over-allotment is exercised. See Issuer's registration statement on Form S-1 (File No. 333-292217, the "Registration Statement"), under the heading "Certain Relationships and Related Party Transactions." Public Units On February 13, 2026, the Company closed its initial public offering of 13,000,000 units, at a price of $10.00 per unit (the "Public Units"), for an aggregate purchase price of $1… Full filing
 26.1% new 4.6m≈ $46.0m 2026-03-04

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 Polar Asset Management Partners Inc. 0.22% of their portfolio TORONTO, A6 1,200,0001.2m $11.9m $11.9m 0.22% New
2 ARISTEIA CAPITAL, L.L.C. 0.16% of their portfolio GREENWICH, CT 1,040,0001.0m $10.3m $10.3m 0.16% New
3 Linden Advisors LP 0.05% of their portfolio New York, NY 1,000,0001.0m $9.9m $9.9m 0.05% New
4 Magnetar Financial LLC 0.09% of their portfolio EVANSTON, IL 1,000,0001.0m $9.9m $9.9m 0.09% New
5 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 843,500843.5k $8.4m $8.4m 0.01% New
6 GLAZER CAPITAL, LLC 0.17% of their portfolio New York, NY 687,600687.6k $6.8m $6.8m 0.17% New
7 AQR Arbitrage LLC 0.06% of their portfolio Greenwich, CT 450,173450.2k $4.5m $4.5m 0.06% New
8 BERKLEY W R CORP 0.19% of their portfolio Greenwich, CT 397,720397.7k $4.0m $4.0m 0.19% New
9 Periscope Capital Inc. 0.55% of their portfolio Toronto, A6 349,800349.8k $3.5m $3.5m 0.55% New
10 Clear Street Group Inc. 0.01% of their portfolio NEW YORK, NY 323,852323.9k $2.4m $2.4m 0.01% New
11 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 300,860300.9k $3.0m $3.0m 0.00% New
12 WHITEBOX ADVISORS LLC 0.05% of their portfolio MINNEAPOLIS, MN 300,000300.0k $3.0m $3.0m 0.05% New
13 Context Capital Management, LLC 0.06% of their portfolio LAJOLLA, CA 300,000300.0k $3.0m $3.0m 0.06% New
14 Kryger Capital LLC 0.14% of their portfolio HAMILTON, D0 245,434245.4k $2.4m $2.4m 0.14% New
15 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 235,624235.6k $2.3m $2.3m 0.00% New
16 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 209,940209.9k $2.1m $2.1m 0.00% New
17 Shaolin Capital Management LLC 0.09% of their portfolio Miami, FL 152,959153.0k $1.5m $1.5m 0.09% New
18 Ghisallo Capital Management LLC 0.03% of their portfolio BOSTON, MA 150,000150.0k $1.5m $1.5m 0.03% New
19 Logan Stone Capital, LLC 0.26% of their portfolio CHICAGO, IL 125,000125.0k $1.2m $1.2m 0.26% New
20 COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.01% of their portfolio HARRISBURG, PA 114,650114.7k $1.1m $1.1m 0.01% New
21 RIVERNORTH CAPITAL MANAGEMENT, LLC 0.05% of their portfolio WEST PALM BEACH, FL 100,000100.0k $997.0k $997.0k 0.05% New
22 Verition Fund Management LLC 0.01% of their portfolio GREENWICH, CT 100,000100.0k $994.0k $994.0k 0.01% New
23 Mint Tower Capital Management B.V. 0.12% of their portfolio AMSTERDAM, P7 100,000100.0k $994.0k $994.0k 0.12% New
24 Kepos Capital LP 1.35% of their portfolio NEW YORK, NY 100,000100.0k $994.0k $994.0k 1.35% New
25 DLD Asset Management, LP 0.06% of their portfolio NEW YORK, NY 75,00075.0k $745.5k $745.5k 0.06% New
26 WOLVERINE ASSET MANAGEMENT LLC 0.01% of their portfolio CHICAGO, IL 72,96773.0k $725.3k $725.3k 0.01% New
27 CSS LLC/IL 0.03% of their portfolio CHICAGO, IL 66,44166.4k $660.4k $660.4k 0.03% New
28 Radcliffe Capital Management, L.P. 0.05% of their portfolio BALA CYNWYD, PA 63,28163.3k $629.0k $629.0k 0.05% New
29 HEIGHTS CAPITAL MANAGEMENT, INC 0.11% of their portfolio SAN FRANCISCO, CA 48,20048.2k $479.1k $479.1k 0.11% New
30 ABC ARBITRAGE SA 0.04% of their portfolio PARIS, I0 40,00040.0k $397.6k $397.6k 0.04% New
31 Parallax Volatility Advisers, L.P. 0.01% of their portfolio San Francisco, CA 30,39230.4k $302.1k $302.1k 0.01% New
32 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 1212 $119 $119 0.00% New