IB Acquisition Corp.
IBAC- Exchange
- Nasdaq
- Industry
- Services-Commercial Physical & Biological Research
- SEC CIK
- 0001998781
No open-market purchases or sales by IB Acquisition Corp. insiders were filed in the last 90 days; 5 institutions reported holding it in 13F filings for Q2 2026, worth $1.03M in total; no superinvestor holds it.
Other share classesIBACR
Holders of 5% or more of IBAC
Holders whose latest Schedule 13D or 13G filing reports 5% or more of IB Acquisition Corp., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| AQR Capital Management LLC | 13G/A | 12.00%688.6K shares | −4.00 ppfrom 16.00% | Oct 7, 20252 filings | Feb 12, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
8 Schedule 13D and 13G filings on IB Acquisition Corp., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Feb 12, 20269:16 AM ET | AQR Capital Management LLCand 2 others | 13G/A | 12.00%688.6K shares | −4.00 ppfrom 16.00% | Dec 31, 2025 | SEC |
| Feb 12, 20266:56 AM ET | Bank of Montrealand 2 others | 13G/A | 0.00%0 shares | −6.17 ppfrom 6.17%Below 5% | Dec 31, 2025 | SEC |
| Feb 11, 202611:24 AM ET | Barclays PLC | 13G/A | 0.34%20.0K shares | −7.66 ppfrom 8.00%Below 5% | Dec 31, 2025 | SEC |
| Nov 13, 202510:01 AM ET | Bank of Montrealand 2 others | 13G | 6.17%354.2K shares | New | Sep 30, 2025 | SEC |
| Nov 12, 20253:34 PM ET | Barclays PLC | 13G | 8.00%459.2K shares | New | Sep 30, 2025 | SEC |
| Nov 7, 20254:03 PM ET | Karpus Management, Inc. | 13G/A | 0.00%0 shares | –Below 5% | Oct 31, 2025 | SEC |
| Oct 14, 20252:34 PM ET | Wealthspring Capital LLCand 1 other | 13G/A | 0.00%0 shares | –Below 5% | Sep 30, 2025 | SEC |
| Oct 7, 20254:22 PM ET | AQR Capital Management LLCand 2 others | 13G/A | 16.00%918.7K shares | – | Sep 30, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell IB Acquisition Corp. shares.
No Form 144 notices for IB Acquisition Corp. are on file.