Alamar Biosciences
Supplies NULISA assays and ARGO HT automation for protein-biomarker measurement.
$30.71
After-hours close−0.02 (−0.07%)
At close$30.73(−6.88%)
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Breakdown13F · Form 4
Institutions 35.34%24.49M sharesInsiders 8.77%6.08M sharesOther 55.89%38.74M shares
Shares outstanding 69.31M · Float 36.08M · 52.1% free float
Institutions13F, as of Jun 30, 2026
87 holders · 24.49M shares · 87 new positions · 87 increased · 0 reduced · 0 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Sands Capital Ventures, LLC | 4.23M | 6.10% | +4.23Mnew | Aug 13, 2026 |
| Samsara Biocapital, LLC | 2.48M | 3.58% | +2.48Mnew | Aug 14, 2026 |
| T. Rowe Price Investment Management, Inc. | 2.20M | 3.18% | +2.20Mnew | Aug 14, 2026 |
| Ark Investment Management LLC | 1.37M | 1.98% | +1.37Mnew | Aug 14, 2026 |
| Braidwell LP | 1.08M | 1.56% | +1.08Mnew | Aug 14, 2026 |
| AllianceBernstein L.P. | 1.00M | 1.45% | +1.00Mnew | Aug 14, 2026 |
| HHLR Advisors, Ltd. | 956.5K | 1.38% | +956.5Knew | Aug 14, 2026 |
| BlackRock, Inc. | 911.4K | 1.32% | +911.4Knew | Aug 7, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Qiming Corporate GP VI, Ltd | 10.20% | 7.07M | 13G | Aug 11, 2026 ↗ |
| Nicholas Naclerioincl. Illumina Innovation Fund II GP, L.L.C., Illumina Innovation Fund II, L.P. +2 more | 9.60% | 6.36M | 13D | Apr 23, 2026 ↗ |
| Yuling Luo | 6.40% | 4.53M | 13G | Aug 13, 2026 ↗ |
| Sands Capital Alternatives, LLCincl. Sands Frank M., Sands Capital Life Sciences Pulse Fund II, L.P. | 6.10% | 4.23M | 13D | Jul 7, 2026 ↗ |
| Sherpa Healthcare Fund Ii, L.P. | 5.70% | 3.97M | 13G | Jul 2, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Yuling Luo | director, officer: Chief Executive Officer | 4.59M | 6.62% | Apr 20, 2026 |
| Shiping Chen | director, officer: Chief Operating Officer | 722.9K | 1.04% | Apr 20, 2026 |
| Timothy Ogden White | officer: President | 454.6K | 0.66% | Apr 20, 2026 |
| Nicholas Naclerio | director | 277.5K | 0.40% | Apr 20, 2026 |
| Illumina Innovation Fund II GP, L.L.C. | 10 percent owner | 271.8K | 0.39% | Apr 20, 2026 |
| Qiming Corporate GP VI, Ltd. | 10 percent owner | 185.2K | 0.27% | Apr 22, 2026 |
| Justin J. McAnear | officer: Chief Financial Officer | 37.2K | 0.05% | Apr 20, 2026 |
2 ten-percent owners hold 456.9K shares by Form 4 — the 13D/G table above shows those stakes, the figure above counts officers and directors only
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Apr 20, 2026 | Nicholas Nacleriodirector | Purchase | 235,294 | $17.00 | 507,076 |
| Apr 20, 2026 | Illumina Innovation Fund II GP, L.L.C.10 percent owner | Purchase | 235,294 | $17.00 | 507,076 |
CongressHouse and Senate disclosures
Not reported.