CTKBCytek Biosciences, Inc.
Insider trading & SEC Form 4 activity — last 90 days. Latest filing: 2026-08-20.
Insider buys (90d)
$0.00
Insider sells (90d)
$0.00
Net flow
$0.00
Filings
11
Buy transactions
0
Sell transactions
0
Distinct insiders
9
Last close (cached)
$4.62
as of 2026-08-27
1d return
+1.1%
5d return
-0.9%
1m return
+5.5%
Top insiders trading CTKB (90d)
Recent transactions (30)
| Filed | Txn date | Insider | Code | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-20 | 2026-08-18 | McCombe William D. | Tax | 5,401 | $4.67 | $25.2K | open → |
| 2026-08-20 | 2026-08-18 | McCombe William D. | Exer. | 16,049 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-18 | McCombe William D. | Tax | 4,392 | $4.67 | $20.5K | open → |
| 2026-08-20 | 2026-08-18 | McCombe William D. | Exer. | 13,051 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-18 | McCombe William D. | Tax | 2,111 | $4.67 | $9.9K | open → |
| 2026-08-20 | 2026-08-18 | McCombe William D. | Exer. | 6,320 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-18 | Yan Ming | Tax | 3,463 | $4.67 | $16.2K | open → |
| 2026-08-20 | 2026-08-18 | Yan Ming | Exer. | 14,220 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-18 | Yan Ming | Tax | 1,501 | $4.67 | $7.0K | open → |
| 2026-08-20 | 2026-08-18 | Yan Ming | Exer. | 6,162 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-18 | Yan Ming | Tax | 1,346 | $4.67 | $6.3K | open → |
| 2026-08-20 | 2026-08-18 | Yan Ming | Exer. | 5,525 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-18 | Yan Ming | Tax | 1,778 | $4.67 | $8.3K | open → |
| 2026-08-20 | 2026-08-18 | Yan Ming | Exer. | 7,363 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-18 | Jiang Wenbin | Tax | 20,956 | $4.67 | $97.9K | open → |
| 2026-08-20 | 2026-08-18 | Jiang Wenbin | Exer. | 57,212 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-18 | Jiang Wenbin | Tax | 7,062 | $4.67 | $33.0K | open → |
| 2026-08-20 | 2026-08-18 | Jiang Wenbin | Exer. | 29,002 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-18 | Jiang Wenbin | Tax | 5,382 | $4.67 | $25.1K | open → |
| 2026-08-20 | 2026-08-18 | Jiang Wenbin | Exer. | 22,100 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-18 | Jiang Wenbin | Tax | 2,869 | $4.67 | $13.4K | open → |
| 2026-08-20 | 2026-08-18 | Jiang Wenbin | Exer. | 11,781 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-18 | Holder Michael | Exer. | 2,181 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-18 | Chin Richard | Exer. | 6,107 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-18 | MUIR GLENN P | Exer. | 3,086 | $0.00 | $0.00 | open → |
| 2026-06-16 | 2026-06-12 | Yan Ming | Gift | 135,892 | $0.00 | $0.00 | open → |
| 2026-06-12 | 2026-06-10 | Imper Vera | Exer. | 43,973 | $0.00 | $0.00 | open → |
| 2026-06-12 | 2026-06-10 | Ball Jack | Exer. | 43,973 | $0.00 | $0.00 | open → |
| 2026-06-12 | 2026-06-10 | Holder Michael | Exer. | 43,973 | $0.00 | $0.00 | open → |
| 2026-06-12 | 2026-06-10 | NEFF DEBORAH J | Exer. | 43,973 | $0.00 | $0.00 | open → |
Other tickers these insiders trade
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