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SCHEDULE 13G Filed 2026-08-13 Event — SEC 0001104659-26-095301 →

Magnetar Financial LLC ACP HOLDINGS ACQUISITION CORP. ACGCW

Stake: Shares: Class: Class A ordinary shares, par value $0.0001

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)
0 transactions
0 buys · 0 sales · 0 awards/exercises
Issuer Cluster
3 13D/G filings on this issuer
2 other filings besides this one
Filer Track Record
37 filings by this filer
36 other filings in the data moat
Short Interest · settle 2026-07-31
DTC 1.00
5,469 shares short · -10.2% vs prior

Other 13D/G Filings on ACP HOLDINGS ACQUISITION CORP.

FiledFormFilerStakeShares
2026-08-14 SCHEDULE 13G Polar Asset Management Partners Inc. view →
2026-08-12 SCHEDULE 13G Adage Capital Management, L.P. view →

Other Filings by Magnetar Financial LLC

FiledFormIssuerStakeShares
2026-06-30 SCHEDULE 13D/A PROASSURANCE CORPORATION 0 view →
2026-06-17 SCHEDULE 13D/A COMTECH TELECOMMUNICATIONS CORP /DE/ CMTL 42.78% 22,402,628.13 view →
2026-01-28 SCHEDULE Astria Therapeutics, Inc. view →
2025-01-27 SCHEDULE UNIVERSAL STAINLESS & ALLOY PRODUCTS INC view →
2025-01-06 SCHEDULE CROSS COUNTRY HEALTHCARE INC CCRN 7.20% 2,324,229 view →
2025-01-03 SCHEDULE CROSS COUNTRY HEALTHCARE INC CCRN 7.20% 2,324,229 view →
2024-10-15 SC CHUY'S HOLDINGS, INC. view →
2024-09-19 SC Silk Road Medical Inc view →
2024-07-03 SC Appgate, Inc. view →
2024-06-20 SC COMTECH TELECOMMUNICATIONS CORP /DE/ CMTL view →
2024-04-03 SC Daseke, Inc. view →
2023-10-10 SC COMTECH TELECOMMUNICATIONS CORP /DE/ CMTL view →
2023-06-06 SC MOMENTIVE GLOBAL INC. view →
2022-12-02 SC MERIDIAN BIOSCIENCE INC view →
2022-05-31 SC Metromile, Inc. view →
2022-03-31 SC MERITOR, INC. view →
2021-11-16 SC COMTECH TELECOMMUNICATIONS CORP /DE/ CMTL view →
2021-09-16 SC TRIPLE-S MANAGEMENT CORP view →
2021-06-30 SC Kindred Biosciences, Inc. view →
2021-05-18 SC SPORTSMAN'S WAREHOUSE HOLDINGS, INC. SPWH view →
Showing 20 of 36

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