Michael Stuart Klein
CIK 1327392 · See Remarks · last filed 2026-07-02
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$24.75M
Companies
11
Total Filings
37
Lifetime Open-Market Net
$12.02M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SKIL | Director | 217,320 | $7.12 | $1.55M | $0 | 5 | 2026-07-02 |
| Claritev Corp (MPLN) Delisted | Director | 219,824 | $23.15 | $5.09M | $0 | 3 | 2026-05-01 |
| CXIIU | See Remarks | 350,000 | — | — | $10.50M | 1 | 2026-04-29 |
| OKLO | Director | 150,000 | $39.58 | $5.94M | -$12.17M | 2 | 2025-09-24 |
| Skillsoft Corp. (SKIL.WS) Delisted | Director | 3,616,709 | $0.01 | $23.5K | $0 | 5 | 2023-07-24 |
| Claritev Corp (MPLN.WS) Delisted | Director | 22,994,079 | $0.00 | $69.0K | $14.79M | 7 | 2023-04-28 |
| Oklo Inc. (ALCC) Delisted | Chairman | 1,435,500 | $18.23 | $26.17M | $0 | 1 | 2021-07-14 |
| Churchill Capital Corp V (CCV.U) Delisted | 10%+ Owner | — | $10.38 | — | $0 | 1 | 2020-12-22 |
| Hall of Fame Resort & Entertainment Co (HOFVW) Delisted | Director | 1,078,984 | $0.00 | $1.9K | -$1.10M | 2 | 2020-07-24 |
| IHS | Director | 12,316 | $8.25 | $101.6K | $0 | 6 | 2012-12-04 |
| C | Co-CEO Citi Markets & Banking | 129,560 | $132.47 | $17.16M | $0 | 4 | 2008-01-24 |
Recent Filings · Page 2 of 4
37 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-04-26 | Claritev Corp (MPLN) Delisted | Grant (A) | +172,413 | $0 | EDGAR |
| 2023-07-24 | Skillsoft Corp. (SKIL.WS) Delisted | Grant (A) | — | $0 | EDGAR |
| 2023-06-23 | Skillsoft Corp. (SKIL.WS) Delisted | Exer (M) | +35,398 | $0 | EDGAR |
| 2023-04-28 | Claritev Corp (MPLN.WS) Delisted | Grant (A) | +106,382 | $0 | EDGAR |
| 2022-06-24 | Skillsoft Corp. (SKIL.WS) Delisted | Mixed | +21,621 | $0 | EDGAR |
| 2022-04-28 | Claritev Corp (MPLN.WS) Delisted | Grant (A) | +22,271 | $0 | EDGAR |
| 2021-12-30 | Skillsoft Corp. (SKIL.WS) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-07-14 | Oklo Inc. (ALCC) Delisted | Grant (A) | +4,305,000 | $43.05M | EDGAR |
| 2021-06-14 | Skillsoft Corp. (SKIL.WS) Delisted | Mixed | +51,750,000 | $0 | EDGAR |
| 2021-06-01 | Claritev Corp (MPLN.WS) Delisted | Grant (A) | +11,723 | $0 | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.