Constellation Acquisition Corp I
CSTAF- Exchange
- OTC
- Industry
- Blank Checks
- SEC CIK
- 0001834032
No open-market purchases or sales by Constellation Acquisition Corp I insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Constellation Acquisition Corp I insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Constellation Acquisition Corp I, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Antarctica Endurance Manager, LLC | 10% Owner | 7,600,000 | Feb 1, 2024 | 0 |
| Constellation Sponsor LP | 10% Owner | 7,600,000 | Feb 1, 2024 | 0 |
| Altman Jeffrey A | 10% Owner | 250,000Indirect | Oct 10, 2023 | 0 |
| Owl Creek Asset Management, L.P. | 10% Owner | 250,000Indirect | Oct 10, 2023 | 0 |
| Kleinfeld Klaus | Chief Executive Officer | – | Jan 30, 2023 | 0 |
| Constellation Sponsor GmbH & Co. KG | 10% Owner | – | Jan 30, 2023 | 0 |
| Weckwerth Martin | Director | – | Jan 30, 2023 | 0 |
| Stapp Thomas | Chief Financial Officer | – | Jan 30, 2023 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jan 30, 2023 (view filing) | Jan 26 | 4 days | Kleinfeld KlausChief Executive Officer | SSaleClass A Ordinary Shares | −1.53M | – | – | –0 after | Derivative |
| Jan 30, 2023 (view filing) | Jan 26 | 4 days | Kleinfeld KlausChief Executive Officer | SSaleClass A Ordinary Shares | −77.8K | – | – | –0 after | Derivative |
| Jan 30, 2023 (view filing) | Jan 26 | 4 days | Weckwerth MartinDirector | SSaleClass A Ordinary Shares | −1.53M | – | – | –0 after | Derivative2 lots |
| Jan 30, 2023 (view filing) | Jan 26 | 4 days | Stapp ThomasChief Financial Officer | SSaleClass A Ordinary Shares | −204.2K | – | – | –0 after | Derivative |
| Jan 30, 2023 (view filing) | Jan 26 | 4 days | Constellation Sponsor GmbH & Co. KG10% Owner | SSaleClass A Ordinary Shares | −7.63M | – | – | –0 after | Derivative |
| Oct 10, 2023 (view filing)5:01 PM ET | Oct 6 | 4 days | Altman Jeffrey A and 1 other10% Owner | SSaleClass A Ordinary Shares, par value $0.0001 per share | −250.0K | $10.88 | −$2.72M | −50.0%250.0K after |