Plutonian Acquisition Corp. II
PLUN- Exchange
- NYSE
- Industry
- Blank Checks
- SEC CIK
- 0002065661
No open-market purchases or sales by Plutonian Acquisition Corp. II insiders were filed in the last 90 days; 19 institutions reported holding it in 13F filings for Q2 2026, worth $47.6M in total; no superinvestor holds it.
Holders of 5% or more of PLUN
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Plutonian Acquisition Corp. II, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Highbridge Capital Management LLC | 13G | 8.70%992.1K shares | New | Aug 14, 20261 filing | Aug 14, 2026 | SEC |
| TD Securities (USA) LLC | 13G | 6.80%773.6K shares | New | Aug 12, 20261 filing | Aug 12, 2026 | SEC |
| Space Summit Capital LLC | 13G | 6.50%650.0K shares | New | May 6, 20261 filing | May 6, 2026 | SEC |
| Magnetar Financial LLC | 13G | 5.71%650.0K shares | New | Aug 13, 20261 filing | Aug 13, 2026 | SEC |
| Decagon Asset Management LLP | 13G | 5.44%585.0K shares | New | Aug 13, 20261 filing | Aug 13, 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
9 Schedule 13D and 13G filings on Plutonian Acquisition Corp. II, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 14, 202612:35 PM ET | Highbridge Capital Management LLC | 13G | 8.70%992.1K shares | New | Jun 30, 2026 | SEC |
| Aug 14, 202611:00 AM ET | Harraden Circle Investments, LLCand 1 other | 13G/A | 0.00%0 shares | −9.44 ppfrom 9.44%Below 5% | Jun 30, 2026 | SEC |
| Aug 13, 20264:01 PM ET | Decagon Asset Management LLPand 1 other | 13G | 5.44%585.0K shares | New | Jun 30, 2026 | SEC |
| Aug 13, 20266:20 AM ET | Magnetar Financial LLCand 3 others | 13G | 5.71%650.0K shares | New | Jun 30, 2026 | SEC |
| Aug 12, 20264:09 PM ET | TD Securities (USA) LLCand 3 others | 13G | 6.80%773.6K shares | New | Jun 30, 2026 | SEC |
| Jul 27, 202611:37 AM ET | Feis Equities LLCand 1 other | 13G/A | 3.29%354.1K shares | −6.63 ppfrom 9.92%Below 5% | Jul 24, 2026 | SEC |
| May 6, 20267:40 PM ET | Feis Equities LLCand 1 other | 13G | 9.92%996.8K shares | New | Apr 28, 2026 | SEC |
| May 6, 20265:34 PM ET | Space Summit Capital LLC | 13G | 6.50%650.0K shares | New | May 6, 2026 | SEC |
| May 5, 20266:30 PM ET | Harraden Circle Investments, LLCand 7 others | 13G | 9.44%1.07M shares | New | Apr 28, 2026 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Plutonian Acquisition Corp. II shares.
No Form 144 notices for Plutonian Acquisition Corp. II are on file.