Chin Richard — SEC Form 4 filings
SEC reporting owner CIK 1337252. 7 Form 4 filings on record with FilingPulse; latest filed 2026-08-20.
Transaction summary — filings shown
Covers all 7 filings on record, filed 2025-06-20 to 2026-08-20. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 14.
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 |
|---|---|---|---|---|---|
| Cytek Biosciences, Inc. (CTKB) | Director | 7 | — | — | 14 |
Form 4 filings — Chin Richard
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-20 | 4 | Cytek Biosciences, Inc. (CTKB) | Option exercise (M): 6,107 · Option exercise (M): 6,107 (derivative) @ $0 | EDGAR |
| 2026-06-12 | 4 | Cytek Biosciences, Inc. (CTKB) | Grant/award (A): 33,333 (derivative) @ $0 · Grant/award (A): 18,261 (derivative) @ $0 | EDGAR |
| 2026-05-20 | 4 | Cytek Biosciences, Inc. (CTKB) | Option exercise (M): 6,107 · Option exercise (M): 6,107 (derivative) @ $0 | EDGAR |
| 2026-03-12 | 4 | Cytek Biosciences, Inc. (CTKB) | Option exercise (M): 6,107 · Option exercise (M): 6,107 (derivative) @ $0 | EDGAR |
| 2025-11-20 | 4 | Cytek Biosciences, Inc. (CTKB) | Option exercise (M): 6,107 · Option exercise (M): 6,107 (derivative) @ $0 | EDGAR |
| 2025-08-20 | 4 | Cytek Biosciences, Inc. (CTKB) | Option exercise (M): 4,071 · Option exercise (M): 4,071 (derivative) @ $0 | EDGAR |
| 2025-06-20 | 4 | Cytek Biosciences, Inc. (CTKB) | Grant/award (A): 73,289 (derivative) @ $0 · Grant/award (A): 39,062 (derivative) @ $0 | 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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