Alpha Teknova, Inc.
A maker of lab reagents—the fluids, buffers, agar plates, and cell-culture media that scientists mix with and grow samples in—for drug developers and diagnostic companies. Founded in 1996 by Ted Davis, a former Genentech scientist who started mixing custom plates in his Half Moon Bay garage, the firm (headquartered in Hollister, California) now ships both off-the-shelf and made-to-order supplies to labs worldwide. Its name is a mashup of "technology" and "nova," hinting at newness.
Bought 20.20M
Bought 810.8K
Bought 160.7K
Bought 134.4K
Granted 20.0K
Granted 20.0K
Bought 27.0K
Bought 3.6K
Granted 74.3K · Sold 8.0K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Telegraph Hill Partners IV Investment Management LLC +3 co-filers10% owner · 4 transactions | — | 37.72Mas of Jul 2024 | — | 20.20M | — |
| Mackowski J MatthewDirector · 1 transaction | — | 820.8Kas of Sep 2023 | — | 810.8K | — |
| Gunstream StephenPresident and CEO, Director · 3 transactions | +147.7% | 269.5K | — | 160.7K | — |
| Lowell MatthewChief Financial Officer · 3 transactions | +395.2% | 168.4K | — | 134.4K | — |
| Robertson BrettDirector · 2 transactions | — | 53.2Kas of Feb 2025 | 20.0K | — | — |
| Vos AlexanderDirector · 1 transaction | +71% | 48.2Kas of Jun 2024 | 20.0K | — | — |
| Terrill DamonGeneral Counsel and CCO · 1 transaction | +193.1% | 41.0Kas of Sep 2023 | — | 27.0K | — |
| Gelhaus KenChief Commercial Officer · 1 transaction | +18.5% | 22.9Kas of Nov 2023 | — | 3.6K | — |
| Hood LisaChief People Officer · 1 transaction | -44.3% | 18.8Kas of Nov 2023 | — | — | — |
| Demski Martha JDirector · 3 transactions | — | 12.0Kas of Jun 2025 | 74.3K | — | 8.0K |
| McNamara RobertDirector · 1 transaction | -66.8% | 9.4Kas of Aug 2023 | — | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: +21.33M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.