ALMR · Insider Trading
Alamar Biosciences, Inc. Common Stock
Every open-market purchase and sale reported by ALMR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-21 | Qiming GP VIII-HC, LLC | 10%+ Owner | Sell | −1,522,584 | −$41.65M |
| 2026-10-19 | Qiming Venture Partners VIII-HC, L.P. | 10%+ Owner | Sell | −1,215,711 | −$33.71M |
| 2026-09-16 | John L. Brottem | General Counsel | A | +29,000 | — |
| 2026-09-03 | Robert P Ragusa | Director | A | +5,686 | — |
| 2026-04-22 | Qiming GP VIII-HC, LLC | 10%+ Owner | MIXED | +74,161,829 | — |
| 2026-04-20 | Rebecca Chambers | Director | J | — | — |
| 2026-04-20 | Justin J. McAnear | Chief Financial Officer | A | +37,220 | — |
| 2026-04-20 | Frank Witney | Director | J | — | — |
| 2026-04-20 | Nicholas Naclerio | Director | MIXED | +6,369,298 | +$4.00M |
| 2026-04-20 | Timothy Ogden White | President | MIXED | +37,220 | — |
| 2026-04-20 | Illumina Innovation Fund III, L.P. | 10%+ Owner | MIXED | +31,818,060 | +$20.00M |
| 2026-04-20 | Yuling Luo | Chief Executive Officer | MIXED | +3,051,675 | — |
| 2026-04-20 | Shiping Chen | Chief Operating Officer | MIXED | +430,584 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Qiming Venture Partners VIII-HC, L.P. | 10%+ Owner | 6,769,018 | $198.77M |
| Yuling Luo | Chief Executive Officer | 1,224,152 | $35.95M |
| Shiping Chen | Chief Operating Officer | 650,032 | $19.09M |
| Timothy Ogden White | President | 454,583 | $13.35M |
| Nicholas Naclerio | Director | 277,468 | $8.15M |
| Illumina Innovation Fund III, L.P. | 10%+ Owner | 271,782 | $7.98M |
| Justin J. McAnear | Chief Financial Officer | 37,220 | $1.09M |
| John L. Brottem | General Counsel | 29,000 | $851.59K |
| Robert P Ragusa | Director | 5,686 | $166.97K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the ALMR quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.