William D. McCombe insider trades: Cytek Biosciences (CTKB) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where William reports to the SEC
Open-market buys and sales
5 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 2, 2025 | CTKB | ↑ Buy | 35,000 | $2.78 | $97K | Direct | Jun 3, 2025 (1d) |
| Aug 21, 2023 | VLD | ↓ Sell | 11,201 | $1.49 | $17K | Direct | Aug 23, 2023 (2d) |
| May 15, 2023 | VLD | ↓ Sell | 11,198 | $1.86 | $21K | Direct | May 16, 2023 (1d) |
| Feb 15, 2023 | VLD | ↓ Sell | 4,268 | $3.62 | $15K | Direct | Feb 17, 2023 (2d) |
| Nov 16, 2022 | VLD | ↓ Sell | 14,470 | $2.61 | $38K | Direct | Dec 14, 2022 (28d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About William D. McCombe's insider trades
William D. McCombe is Chief Financial Officer at Cytek Biosciences (CTKB). Since Nov 16, 2022, William has reported 1 open-market purchase worth $97K and 4 sales worth $91K on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include option exercises (11 filings), grants and awards (8 filings), shares withheld for taxes (6 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every CTKB insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.