Cytek Biosciences, Inc.
CTKBReported to SECin USCIK 0001831915Filings at SEC EDGAR
No score on this page, by design. Everything here is a fact from a public U.S. register: insider filings at the SEC (Form 4), lobbying filings under the Lobbying Disclosure Act, trades reported by members of Congress under the STOCK Act, and fund holdings in 13F filings. Our scores, percentiles and signals run on the Dutch register only, because that is the only register the model has been validated on.
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The most recent filings
Most recent filing first: every line of every Form 4 at this company that passed our review, the same lines as on the register. Reported is the day the filing reached the SEC, usually within two business days of the trade. Amounts are in U.S. dollars, as the form states them.
| Filed by | Type | Value | Reported | Filed by | Value | Type | Shares | Reported |
|---|---|---|---|---|---|---|---|---|
| McCombe William D.Chief Financial Officer | Option exercise | nothing paid16,049 shares | Aug 20, 2026 | McCombe William D.Chief Financial Officer | nothing paid | Option exercise | 16,049 | Aug 20, 2026 |
| McCombe William D.Chief Financial Officer | Option exercise | nothing paid13,051 shares | Aug 20, 2026 | McCombe William D.Chief Financial Officer | nothing paid | Option exercise | 13,051 | Aug 20, 2026 |
| McCombe William D.Chief Financial Officer | Option exercise | nothing paid6,320 shares | Aug 20, 2026 | McCombe William D.Chief Financial Officer | nothing paid | Option exercise | 6,320 | Aug 20, 2026 |
| McCombe William D.Chief Financial Officer | Administrative | $25,2235,401 shares | Aug 20, 2026 | McCombe William D.Chief Financial Officer | $25,223 | Administrative | 5,401 | Aug 20, 2026 |
| McCombe William D.Chief Financial Officer | Option exercise | —16,049 shares | Aug 20, 2026 | McCombe William D.Chief Financial Officer | — | Option exercise | 16,049 | Aug 20, 2026 |