Chai Nelson — SEC Form 4 filings
SEC reporting owner CIK 1299914. 7 Form 4 filings on record with FilingPulse; latest filed 2026-05-26.
Transaction summary — filings shown
Covers all 7 filings on record, filed 2024-05-17 to 2026-05-26. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 2 legs across 1 filing — 20 shares, $11,038 total (shares × price as filed).
- Open-market sales (code S, non-derivative): 1 leg across 1 filing — 16 shares, $8,449 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 8.
- Largest priced transaction: purchase of 16 shares @ $555.89 ($8,894) in THERMO FISHER SCIENTIFIC INC., filed 2025-02-21.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| THERMO FISHER SCIENTIFIC INC. (TMO) | Director | 4 | 2 legs · 20 sh · $11,038 | 1 leg · 16 sh · $8,449 | 3 |
| Chubb Ltd (CB) | Director | 3 | — | — | 5 |
Form 4 filings — Chai Nelson
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-05-26 | 4 | Chubb Ltd (CB) | Grant/award (A): 681 · Tax withholding (F): 193 @ $330.26 | EDGAR |
| 2026-05-22 | 4 | THERMO FISHER SCIENTIFIC INC. (TMO) | Grant/award (A): 499 @ $0 | EDGAR |
| 2025-05-22 | 4 | THERMO FISHER SCIENTIFIC INC. (TMO) | Grant/award (A): 565 @ $0 | EDGAR |
| 2025-05-16 | 4 | Chubb Ltd (CB) | Grant/award (A): 771 · Tax withholding (F): 180 @ $292.05 | EDGAR |
| 2025-02-21 | 4 | THERMO FISHER SCIENTIFIC INC. (TMO) | Purchase (P): 16 @ $555.89 · Purchase (P): 4 @ $535.93 · Sale (S): 16 @ $528.09 | EDGAR |
| 2024-05-23 | 4 | THERMO FISHER SCIENTIFIC INC. (TMO) | Grant/award (A): 339 @ $0 | EDGAR |
| 2024-05-17 | 4 | Chubb Ltd (CB) | Grant/award (A): 718 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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