CIK 0001831915 · Accelerated filer
Cytek Biosciences, Inc.
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- CTKB
- Exchange
- Nasdaq
- Industry
- Laboratory Analytical Instruments
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 472547526
- Phone
- (877) 922-9835
- Business address
- 47215 LAKEVIEW BOULEVARD, FREMONT, CA, 94538
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Reading 72 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-08-18 | McCombe William D. Chief Financial Officer | Option exercise | +6,320 | 117,497 | ||
| 2026-08-18 | McCombe William D. Chief Financial Officer | Shares withheld for taxes | −2,111 | $4.67 | $10K | 115,386 |
| 2026-08-18 | McCombe William D. Chief Financial Officer | Option exercise | +13,051 | 128,437 | ||
| 2026-08-18 | McCombe William D. Chief Financial Officer | Shares withheld for taxes | −4,392 | $4.67 | $21K | 124,045 |
| 2026-08-18 | McCombe William D. Chief Financial Officer | Option exercise | +16,049 | 140,094 | ||
| 2026-08-18 | McCombe William D. Chief Financial Officer | Shares withheld for taxes | −5,401 | $4.67 | $25K | 134,693 |
| 2026-08-18 | McCombe William D. Chief Financial Officer | Option exercise · Restricted Stock Units | −6,320 | 44,249 | ||
| 2026-08-18 | McCombe William D. Chief Financial Officer | Option exercise · Restricted Stock Units | −13,051 | 134,862 | ||
| 2026-08-18 | McCombe William D. Chief Financial Officer | Option exercise · Restricted Stock Units | −16,049 | 230,042 | ||
| 2026-08-18 | Yan Ming CHIEF TECHNOLOGY OFFICER | Option exercise | +7,363 | 4,804,051 | ||
| 2026-08-18 | Yan Ming CHIEF TECHNOLOGY OFFICER | Shares withheld for taxes | −1,778 | $4.67 | $8K | 4,802,273 |
| 2026-08-18 | Yan Ming CHIEF TECHNOLOGY OFFICER | Option exercise | +5,525 | 4,807,798 | ||
| 2026-08-18 | Yan Ming CHIEF TECHNOLOGY OFFICER | Shares withheld for taxes | −1,346 | $4.67 | $6K | 4,806,452 |
| 2026-08-18 | Yan Ming CHIEF TECHNOLOGY OFFICER | Option exercise | +6,162 | 4,812,614 | ||
| 2026-08-18 | Yan Ming CHIEF TECHNOLOGY OFFICER | Shares withheld for taxes | −1,501 | $4.67 | $7K | 4,811,113 |
| 2026-08-18 | Yan Ming CHIEF TECHNOLOGY OFFICER | Option exercise | +14,220 | 4,825,333 | ||
| 2026-08-18 | Yan Ming CHIEF TECHNOLOGY OFFICER | Shares withheld for taxes | −3,463 | $4.67 | $16K | 4,821,870 |
| 2026-08-18 | Yan Ming CHIEF TECHNOLOGY OFFICER | Option exercise · Restricted Stock Units | −7,363 | 17,189 | ||
| 2026-08-18 | Yan Ming CHIEF TECHNOLOGY OFFICER | Option exercise · Restricted Stock Units | −5,525 | 34,995 | ||
| 2026-08-18 | Yan Ming CHIEF TECHNOLOGY OFFICER | Option exercise · Restricted Stock Units | −6,162 | 63,688 |
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