Kensington Capital Acquisition Corp. VI
KCA.UN- Exchange
- NYSE
- Industry
- Industrial Inorganic Chemicals
- SEC CIK
- 0002102713
No open-market purchases or sales by Kensington Capital Acquisition Corp. VI insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
Holders of 5% or more of KCA.UN
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Kensington Capital Acquisition Corp. VI, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Magnetar Financial LLC | 13G | 6.73%1.55M shares | New | May 13, 20261 filing | May 13, 2026 | SEC |
| Wealthspring Capital LLC | 13G | 6.63%1.52M shares | New | Apr 9, 20261 filing | Apr 9, 2026 | SEC |
| Polar Asset Management Partners Inc. | 13G | 5.70%1.30M shares | New | May 15, 20261 filing | May 15, 2026 | SEC |
| LMR Partners LLP | 13G | 5.70%1.30M shares | New | May 15, 20261 filing | May 15, 2026 | SEC |
| Millennium Management LLC | 13G | 5.70%1.30M shares | New | Mar 11, 20261 filing | Mar 11, 2026 | SEC |
| Aristeia Capital LLC | 13G | 5.65%1.30M shares | New | May 14, 20261 filing | May 14, 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
7 Schedule 13D and 13G filings on Kensington Capital Acquisition Corp. VI, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Jul 6, 20266:33 PM ET | Millennium Management LLCand 2 others | 13G/A | 0.90%200.0K shares | –Below 5% | Jun 30, 2026 | SEC |
| May 15, 202611:49 AM ET | Polar Asset Management Partners Inc. | 13G | 5.70%1.30M shares | New | Mar 31, 2026 | SEC |
| May 15, 202610:17 AM ET | LMR Partners LLPand 7 others | 13G | 5.70%1.30M shares | New | Mar 31, 2026 | SEC |
| May 14, 20269:05 AM ET | Aristeia Capital LLC | 13G | 5.65%1.30M shares | New | Mar 31, 2026 | SEC |
| May 13, 20269:44 AM ET | Magnetar Financial LLCand 3 others | 13G | 6.73%1.55M shares | New | Mar 31, 2026 | SEC |
| Apr 9, 20264:43 PM ET | Wealthspring Capital LLCand 1 other | 13G | 6.63%1.52M shares | New | Mar 31, 2026 | SEC |
| Mar 11, 20264:37 PM ET | Millennium Management LLCand 2 others | 13G | 5.70%1.30M shares | New | Mar 4, 2026 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Kensington Capital Acquisition Corp. VI shares.
No Form 144 notices for Kensington Capital Acquisition Corp. VI are on file.