Holder Michael has filed 18 insider transactions across 1 company since June 2024.
Most recent transaction: a option exercise of 2908 shares of Cytek Biosciences, Inc. ($CTKB) on March 10, 2026.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 10, 2026 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Restricted Stock Units | 2908 | $0.00 | 10,911.0000 | 127,604,317 | 21.04% | 0.00% |
| March 10, 2026 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Common Stock | 2908 | $0.00 | 15,267.0000 | 127,604,317 | 23.53% | 0.00% |
| Nov. 18, 2025 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Restricted Stock Units | 2181 | $0.00 | 13,819.0000 | 127,604,317 | 13.63% | 0.00% |
| Nov. 18, 2025 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Common Stock | 2181 | $0.00 | 12,359.0000 | 127,604,317 | 21.43% | 0.00% |
| Aug. 18, 2025 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Common Stock | 2181 | $0.00 | 10,178.0000 | 130,611,330 | 27.27% | 0.00% |
| Aug. 18, 2025 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Restricted Stock Units | 2181 | $0.00 | 16,000.0000 | 130,611,330 | 12.00% | 0.00% |
| June 18, 2025 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | A | Restricted Stock Units | 43973 | $0.00 | 43,973.0000 | 130,611,330 | 9999.99% | 0.03% |
| June 18, 2025 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | A | Director Stock Option (right to buy) | 23809 | $0.00 | 23,809.0000 | 130,611,330 | 9999.99% | 0.02% |
| May 19, 2025 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Common Stock | 1454 | $0.00 | 7,997.0000 | 130,611,330 | 22.22% | 0.00% |
| May 19, 2025 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Restricted Stock Units | 1454 | $0.00 | 18,181.0000 | 130,611,330 | 7.41% | 0.00% |
| March 10, 2025 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Common Stock | 2908 | $0.00 | 6,543.0000 | 130,611,330 | 80.00% | 0.00% |
| March 10, 2025 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Restricted Stock Units | 2908 | $0.00 | 19,635.0000 | 130,611,330 | 12.90% | 0.00% |
| Nov. 18, 2024 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Restricted Stock Units | 2181 | $0.00 | 22,543.0000 | 132,785,552 | 8.82% | 0.00% |
| Nov. 18, 2024 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Common Stock | 2181 | $0.00 | 3,635.0000 | 132,785,552 | 150.00% | 0.00% |
| Aug. 19, 2024 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Restricted Stock Units | 1454 | $0.00 | 24,724.0000 | 135,283,044 | 5.55% | 0.00% |
| Aug. 19, 2024 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | M | Common Stock | 1454 | $0.00 | 1,454.0000 | 135,283,044 | 9999.99% | 0.00% |
| June 5, 2024 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | A | Restricted Stock Units | 26178 | $0.00 | 26,178.0000 | 135,283,044 | 9999.99% | 0.02% |
| June 5, 2024 | Cytek Biosciences, Inc. | $CTKB | Holder Michael | Not found | A | Stock Option (right to buy) | 37878 | $0.00 | 37,878.0000 | 135,283,044 | 9999.99% | 0.03% |