Alamar Biosciences, Inc.
ALMR- Exchange
- Nasdaq
- Industry
- Laboratory Analytical Instruments
- SEC CIK
- 0002104204
In the last 90 days, Alamar Biosciences, Inc. insiders filed 0 open-market purchases and 7 sales; 87 institutions reported holding it in 13F filings for Q2 2026, worth $664.3M in total; 3 superinvestors hold it, including ARK Invest and HHLR Advisors (Hillhouse).
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Alamar Biosciences, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 7 filings
- 1 insider, $44.6M in total
- Insiders trading
- 1
- Net value
- −$44.6M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Alamar Biosciences, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Qiming Venture Partners VI, L.P. | 10% Owner | 1,650,354Indirect | Nov 5, 2026 | 8 |
| Qiming Managing Directors Fund VI, L.P. | 10% Owner | 1,650,354Indirect | Nov 5, 2026 | 8 |
| Qiming Venture Partners VIII-HC, L.P. | 10% Owner | 1,650,354Indirect | Nov 5, 2026 | 8 |
| Qiming Corporate GP VI, Ltd. | 10% Owner | 1,650,354Indirect | Nov 5, 2026 | 8 |
| Qiming Venture Partners VIII Investments, LLC | 10% Owner | 1,650,354Indirect | Nov 5, 2026 | 8 |
| Qiming GP VIII-HC, LLC | 10% Owner | 1,650,354Indirect | Nov 5, 2026 | 8 |
| Qiming GP VIII, LLC | 10% Owner | 1,650,354Indirect | Nov 5, 2026 | 8 |
| Brottem John L. | General Counsel | 29,000 | Sep 16, 2026 | 1 |
| Ragusa Robert P | Director | 5,686 | Sep 3, 2026 | 1 |
| Naclerio Nicholas | 10% Owner | 507,076Indirect | Apr 20, 2026 | 2 |
| Illumina Innovation Fund II, L.P. | 10% Owner | 507,076Indirect | Apr 20, 2026 | 1 |
| Illumina Innovation Fund II GP, L.L.C. | 10% Owner | 507,076Indirect | Apr 20, 2026 | 1 |
| Illumina Innovation Fund III, L.P. | 10% Owner | 507,076Indirect | Apr 20, 2026 | 1 |
| Illumina Innovation Fund III GP, L.L.C. | 10% Owner | 507,076Indirect | Apr 20, 2026 | 1 |
| Witney Frank | Director | – | Apr 20, 2026 | 1 |
| McAnear Justin J. | Chief Financial Officer | 37,220 | Apr 20, 2026 | 1 |
| Chambers Rebecca | Director | – | Apr 20, 2026 | 1 |
| White Timothy Ogden | President | 491,803 | Apr 20, 2026 | 1 |
| Luo Yuling | Chief Executive Officer | 1,224,152Indirect | Apr 20, 2026 | 1 |
| Chen Shiping | Chief Operating Officer | 760,105 | Apr 20, 2026 | 1 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Nov 5, 2026 (view filing)4:10 PM ET | Nov 3 | 2 days | Qiming Venture Partners VI, L.P. and 6 others10% Owner | SSale | −111.3K | $29.89 | −$3.33M | −6.3%1.65M after | 4 lots |
| Nov 3, 2026 (view filing)4:15 PM ET | Oct 30-Nov 2 | 4 days | Qiming Venture Partners VI, L.P. and 6 others10% Owner | SSale | −187.6K | $30.25 | −$5.68M | −10.1%1.67M after | 24 lots |
| Oct 29, 2026 (view filing)4:09 PM ET | Oct 27-28 | 2 days | Qiming Venture Partners VI, L.P. and 6 others10% Owner | SSale | −185.7K | $32.14 | −$5.97M | −9.8%1.70M after | 20 lots |
| Oct 27, 2026 (view filing)4:10 PM ET | Oct 23-26 | 4 days | Qiming Venture Partners VI, L.P. and 6 others10% Owner | SSale | −280.5K | $30.56 | −$8.57M | −13.9%1.74M after | 20 lots |
| Oct 23, 2026 (view filing)7:35 PM ET | Oct 21-22 | 2 days | Qiming Venture Partners VI, L.P. and 6 others10% Owner | SSale | −342.6K | $29.93 | −$10.3M | −16.1%1.79M after | 24 lots |
| Oct 21, 2026 (view filing)7:15 PM ET | Oct 19-20 | 2 days | Qiming Venture Partners VI, L.P. and 6 others10% Owner | SSale | −217.5K | $27.35 | −$5.95M | −10.5%1.85M after | 16 lots |
| Oct 19, 2026 (view filing)4:30 PM ET | Oct 15-16 | 4 days | Qiming Venture Partners VI, L.P. and 6 others10% Owner | SSale | −173.7K | $27.73 | −$4.82M | −8.4%1.89M after | 12 lots |
| Apr 20, 2026 (view filing)8:45 PM ET | Apr 20 | Same day | Naclerio Nicholas and 4 others10% Owner | PPurchase | +235.3K | $17.00 | +$4.00M | +86.6%507.1K after | Duplicate filing |
| Apr 20, 2026 (view filing)8:31 PM ET | Apr 20 | Same day | Naclerio NicholasDirector | PPurchase | +235.3K | $17.00 | +$4.00M | +86.6%507.1K after |