Proem Acquisition Corp I has 6 Schedule 13D or 13G filings on record since 2026-02-18. 5 holders' latest filing reports 5% or more of class a ordinary shares, par value $0.0001. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Proem SPAC Partners I LLC | 26.1% | 4,625,833 | SCHEDULE 13D, 2026-03-04 | 2026-02-13 |
| Linden Advisors LP | 7.5% | 1,000,000 | SCHEDULE 13G, 2026-02-18 | 2026-02-17 |
| Polar Asset Management Partners Inc. | 6.5% | 1,200,000 | SCHEDULE 13G, 2026-05-15 | 2026-03-31 |
| Aristeia Capital, L.L.C. | 5.66% | 1,040,000 | SCHEDULE 13G, 2026-05-14 | 2026-03-31 |
| Magnetar Financial LLC | 5.44% | 1,000,000 | SCHEDULE 13G, 2026-05-13 | 2026-03-31 |
| Millennium Management LLC | 4.1% | 752,500 | SCHEDULE 13G, 2026-02-20 | 2026-02-12 |
Purpose of Transaction (Item 4)
Proem SPAC Partners I LLC
Founder 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 $130,000,000. Each Public Unit consists of one ordinary share and one-half of one redeemable warrant (each, a "warrant"). Each whole warrant entitles the holder thereof to purchase one ordinary share at a price of $11.50 per share, subject to adjustment (as described more fully in the Registration Statement). Private Placement Units On February 13, 2026, simultaneously with the closing of the Issuer's IPO, the Sponsor acquired 292,500 private placement units ("Private Placement Units" and, together with the Public Units, the "Units") at $10.00 per Private Placement Unit, for an aggregate purchase price of $2,925,000, pursuant to a Private Placement Units Purchase Agreements dated February …The first part of Item 4 of the SCHEDULE 13D filed 2026-03-04; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-02-18 | Linden Advisors LP | 7.5% | SCHEDULE 13G |
| 2026-02-20 | Millennium Management LLC | 4.1% | SCHEDULE 13G |
| 2026-03-04 | Proem SPAC Partners I LLC | 26.1% | SCHEDULE 13D |
| 2026-05-13 | Magnetar Financial LLC | 5.44% | SCHEDULE 13G |
| 2026-05-14 | Aristeia Capital, L.L.C. | 5.66% | SCHEDULE 13G |
| 2026-05-15 | Polar Asset Management Partners Inc. | 6.5% | SCHEDULE 13G |
Tools for this story
Each opens in a new tab, filled in for Proem Acquisition Corp I. With no account yet, you sign up free and land on the result.
Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.