Sim Acquisition Corp. I has 16 Schedule 13D or 13G filings on record since 2025-08-06. 1 holder's latest filing reports 5% or more of common stock, 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 |
|---|---|---|---|---|
| SIM Sponsor 1 LLC | 93.2% | 7,646,669 | SCHEDULE 13D, 2026-05-15 | 2026-05-11 |
| Barclays PLC | 4.29% | 987,436 | SCHEDULE 13G/A, 2025-08-12 | 2025-06-30 |
| MMCAP International Inc. SPC | 4.26% | 980,000 | SCHEDULE 13G/A, 2025-08-12 | 2025-06-30 |
| The Goldman Sachs Group, Inc. | 4.2% | 969,533 | SCHEDULE 13G/A, 2025-11-10 | 2025-09-30 |
| Westchester Capital Management, LLC | 3.34% | 767,556 | SCHEDULE 13G/A, 2026-05-15 | 2026-03-31 |
| Picton Mahoney Asset Management | 0% | 0 | SCHEDULE 13G/A, 2026-08-11 | 2026-06-30 |
| Karpus Management, Inc. | 0% | 0 | SCHEDULE 13G/A, 2026-06-05 | 2026-05-29 |
| First Trust Merger Arbitrage Fund | 0% | 0 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| AQR Capital Management, LLC | 0% | 0 | SCHEDULE 13G/A, 2026-08-12 | 2026-06-30 |
| Magnetar Financial LLC | 0% | 0 | SCHEDULE 13G/A, 2026-09-04 | 2026-06-30 |
Purpose of Transaction (Item 4)
SIM Sponsor 1 LLC
The responses to Items 3 and 6 of this Schedule 13D are incorporated by reference herein. The Reporting Persons hold their securities of the Issuer for investment purposes. The Reporting Persons continuously assess the Issuer's business, financial condition, results of operations and prospects, general economic conditions, other developments and additional investment opportunities. Depending on such assessments, and subject to any restrictions described herein (such as the transfer restrictions in the Letter Agreement dated July 9, 2024, which was entered into between the Issuer, the Sponsor and certain other parties (the "Letter Agreement")), the Reporting Persons may: (i) acquire beneficial ownership of additional securities of the Issuer in the open market, in privately negotiated transactions or otherwise; (ii) dispose of all or part of their holdings of securities of the Issuer; or (iii) take other actions which could involve one or more of the types of transactions or have one or more of the results described in Item 4 of Schedule 13D. Such actions will depend upon a variety of factors, including, without limitation, current and anticipated future trading prices, the financial condition, results of operations and prospects of the Issuer, alternative investment opportunities, general economic, financial market and industry conditions and other factors that the Reporting Persons may deem material to their investment decision. Except as set forth herein, the Reporting …The first part of Item 4 of the SCHEDULE 13D filed 2026-05-15; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-06 | Picton Mahoney Asset Management | 7.83% | SCHEDULE 13G/A |
| 2025-08-12 | Barclays PLC | 4.29% | SCHEDULE 13G/A |
| 2025-08-12 | MMCAP International Inc. SPC | 4.26% | SCHEDULE 13G/A |
| 2025-08-14 | Karpus Management, Inc. | 6.25% | SCHEDULE 13G/A |
| 2025-08-14 | Westchester Capital Management, LLC | 5.33% | SCHEDULE 13G |
| 2025-11-10 | The Goldman Sachs Group, Inc. | 4.2% | SCHEDULE 13G/A |
| 2026-02-19 | SIM Sponsor 1 LLC | 24.7% | SCHEDULE 13G/A |
| 2026-04-27 | Picton Mahoney Asset Management | 5.65% | SCHEDULE 13G/A |
| 2026-05-15 | Westchester Capital Management, LLC | 3.34% | SCHEDULE 13G/A |
| 2026-05-15 | SIM Sponsor 1 LLC | 93.2% | SCHEDULE 13D |
| 2026-05-15 | First Trust Capital Management L.P. | 5.63% | SCHEDULE 13G/A |
| 2026-06-05 | Karpus Management, Inc. | 0% | SCHEDULE 13G/A |
| 2026-08-11 | Picton Mahoney Asset Management | 0% | SCHEDULE 13G/A |
| 2026-08-12 | AQR Capital Management, LLC | 0% | SCHEDULE 13G/A |
| 2026-08-14 | First Trust Merger Arbitrage Fund | 0% | SCHEDULE 13G/A |
| 2026-09-04 | Magnetar Financial LLC | 0% | SCHEDULE 13G/A |
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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.