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TCBIO • CIK 0001077428
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People and entities that have reported ownership via Form 3, 3/A, 4, 4/A, 5, 5/A
Parsed transactions from Form 4 (and 3/5) filings (past year)
21 transactions · 192.83K shares
$4.56M total value
0 transactions · 0 shares
— total value
22 transactions · 81.59K shares
| Filing Date | Insiders | Transactions | Filing |
|---|---|---|---|
| Aug 20, 2026 | Alvarado Anna M | Gift: 51 | View |
| Apr 23, 2026 | STALLINGS ROBERT W | Exercised 1.67K options | View |
| Mar 9, 2026 | STALLINGS ROBERT W | Bought 25.50K @ $22.7137/share ($579.20K) | View |
| Mar 5, 2026 | STALLINGS ROBERT W | Bought 45.00K @ $22.2433/share ($1.00M) | View |
| Mar 3, 2026 | STALLINGS ROBERT W | Bought 28.33K @ $30.7707/share ($871.73K) | View |
| Feb 25, 2026 | STALLINGS ROBERT W | Bought 40.00K @ $22.20/share ($888.00K) | View |
| Feb 23, 2026 | Holmes Rob C | Exercised 1.45K options Tax Withholding: 1.45K @ $97.63 ($141.17K) | View |
| Feb 19, 2026 | STALLINGS ROBERT W | Bought 10.00K @ $22.128/share ($221.28K) | View |
| Feb 17, 2026 | Cummings John W | Exercised 1.47K options Tax Withholding: 579 @ $103.42 ($59.88K) | View |
| Feb 17, 2026 | Scurlock John Matthew | Exercised 1.82K options Tax Withholding: 716 @ $103.42 ($74.05K) | View |
| Feb 17, 2026 | Holmes Rob C | Exercised 9.57K options Tax Withholding: 3.54K @ $103.42 ($366.11K) | View |
| Feb 17, 2026 | Alvarado Anna M | Exercised 1.28K options Tax Withholding: 503 @ $103.42 ($52.02K) | View |
| Feb 10, 2026 | Cummings John W | Exercised 4.44K options Tax Withholding: 1.08K @ $104.62 ($113.20K) | View |
| Feb 10, 2026 | Scurlock John Matthew | Exercised 4.65K options Tax Withholding: 1.83K @ $104.62 ($191.66K) | View |
| Feb 10, 2026 | Holmes Rob C | Exercised 29.61K options Tax Withholding: 11.45K @ $104.62 ($1.20M) | View |
| Feb 10, 2026 | Detrich Ellen | Exercised 1.37K options Tax Withholding: 390 @ $104.62 ($40.80K) | View |
| Feb 10, 2026 | Alvarado Anna M | Exercised 3.86K options Tax Withholding: 1.53K @ $104.62 ($159.96K) | View |
| Feb 6, 2026 | STALLINGS ROBERT W | Bought 16.89K @ $21.355/share ($360.58K) | View |
| Feb 4, 2026 | STALLINGS ROBERT W | Bought 4.12K @ $21.0837/share ($86.76K) | View |
| Jan 30, 2026 | Oman David W | Exercised 1.31K options Tax Withholding: 584 @ $98.87 ($57.74K) | View |
| Jan 30, 2026 | Scurlock John Matthew | Exercised 2.68K options Tax Withholding: 1.12K @ $98.87 ($111.13K) | View |
| Jan 30, 2026 | Holmes Rob C | Exercised 10.08K options Tax Withholding: 4.29K @ $98.6151 ($422.57K) | View |
| Jan 30, 2026 | Alvarado Anna M | Exercised 1.18K options Tax Withholding: 526 @ $98.87 ($52.01K) | View |
| Jan 27, 2026 | Whitley Laura L | Bought 1.00K @ $97.535/share ($97.53K) | View |
| Jan 27, 2026 | STALLINGS ROBERT W | Bought 2.00K @ $20.91/share ($41.82K) | View |
| Nov 6, 2025 | Alvarado Anna M | Exercised 5.17K options Tax Withholding: 2.04K @ $85.22 ($173.42K) | View |
| Oct 30, 2025 | Alvarado Anna M | Gift: 177 | View |
| Oct 30, 2025 | STALLINGS ROBERT W | Bought 5.00K @ $20.83/share ($104.15K) | View |
| Oct 28, 2025 | STALLINGS ROBERT W | Bought 15.00K @ $20.6333/share ($309.50K) | View |