Quick Takeaways
- Michael Stuart Klein has 6 issuer positions tracked on this page.
- Estimated disclosed ownership value: $318,010,461.
- Recent insider filing activity is available below.
- Info
- Significant Ownership
- Insider Ownership
Insider Trading & Ownership of Michael Stuart Klein
- Location
- New York, NY
- Summary
- The estimated net worth of Michael Stuart Klein is at least $318,010,461 dollars as of 17 Feb 2026. Michael Stuart Klein is the Chief Executive Officer, President and Chairman of the Board of Directors, Director, 10%+ Owner of Churchill Capital Corp XI and owns shares of Churchill Capital Corp XI (CCXI) stock worth about $143M. Michael Stuart Klein is the Former Chief Executive Officer, President and Chairman of the Board of Directors of CCX., Director, 10%+ Owner of Churchill Capital Corp X/Cayman and owns shares of Infleqtion, Inc. (INFQ) stock worth about $133.02M. Michael Stuart Klein is the Director, 10%+ Owner of Oklo Inc. and owns shares of Oklo Inc. (OKLO) stock worth about $20.28M. Michael Stuart Klein is the Director of Claritev Corp and owns shares of Claritev Corp (CTEV) stock worth about $12.88M. Michael Stuart Klein is the Director of Skillsoft Corp. and owns shares of Skillsoft Corp. (SKIL) stock worth about $8.83M.
- Signature
- /s/ Michael Klein
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Michael Stuart Klein and return when a new Insider Trading filing appears.
This tracks SEC filing changes for this page using existing product update flows.
What Changed
- Largest disclosed position: Churchill Capital Corp XI ($143,000,000).
- Past-year value change for that position: +$5,000,000.
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Michael Stuart Klein
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| CCXI, CCXIU | Churchill Capital Corp XI | Chief Executive Officer, President and Chairman of the Board of Directors, Director, 10%+ Owner | $143,000,000 | +$5,000,000 | +3.6% | 18 Dec 2025 |
| INFQ, INFQ-WT | Churchill Capital Corp X/Cayman | Former Chief Executive Officer, President and Chairman of the Board of Directors of CCX., Director, 10%+ Owner | $133,018,500 | 12 Feb 2026 | ||
| OKLO | Oklo Inc. | Director, 10%+ Owner | $20,280,000 | -$25,194,840 | -55% | 22 Sep 2025 |
| CTEV | Claritev Corp | Director | $12,879,890 | 30 Apr 2025 | ||
| SKIL, SKILW | Skillsoft Corp. | Director | $8,832,071 | 17 Jul 2025 | ||
| CCIX, CCIXU | Churchill Capital Corp IX/Cayman | Chief Executive Officer, President and Chairman of the Board of Directors, Director, 10%+ Owner | 06 May 2024 |
Insider Transactions Reported by Michael Stuart Klein:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.