Seer (SEER)
Provides the Proteograph platform for deep, unbiased proteomics research.
$1.86
After-hours close−0.01 (−0.53%)
At close$1.87(+0.54%)
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13F · 13D/G · Form 4
| Institutions | 37.04% | 20.51M shares | |
|---|---|---|---|
| 59 holders · as of Jun 30, 2026 | |||
| Insiders | 20.06% | 11.11M shares | |
| 9 holders · as of Aug 19, 2026 | |||
| Strategic holders | 14.84% | 8.22M shares | |
| 2 holders · as of Feb 7, 2022 | |||
| Other | 28.06% | 15.54M shares | |
| remainder | |||
55.37M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
13F, as of Jun 30, 2026
59 holders · 20.51M shares · 9 new positions · 23 increased · 20 reduced · 8 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| SoftBank Group Corp. | 5.14M | 9.27% | 0 | Aug 14, 2026 |
| Siren, L.L.C. | 2.46M | 4.44% | 0 | Aug 13, 2026 |
| Acadian Asset Management LLC | 1.95M | 3.53% | −121.0K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 1.83M | 3.31% | −127.9K | Aug 13, 2026 |
| BlackRock, Inc. | 1.43M | 2.58% | −393.2K | Aug 7, 2026 |
| Renaissance Technologies LLC | 985.5K | 1.78% | +8.8K | Aug 13, 2026 |
| Nano Cap New Millennium Growth Fund L P | 825.0K | 1.49% | 0 | Aug 14, 2026 |
| Citadel Advisors LLC | 519.3K | 0.94% | +519.3K | Sep 2, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Omid Farokhzad | 12.00% | 6.92M | 13G | May 15, 2026 |
| Schindel Yair Chaim | 8.35% | 4.92M | 13G | Jan 8, 2025 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 18, 2026 | David R. Hornofficer: PRESIDENT & CFO | Sale | 7,309 | $2.03 | 486,650 |
| Jul 8, 2026 | Dipchand Nishardirector | Sale | 10,660 | $2.18 | 59,044 |
| May 20, 2026 | David R. Hornofficer: PRESIDENT & CFO | Sale | 7,303 | $1.69 | 493,959 |
| Feb 18, 2026 | Omid Farokhzaddirector, officer: CEO AND CHAIR | Sale | 24,385 | $1.99 | 3,349,064 |
| Feb 18, 2026 | David R. Hornofficer: PRESIDENT & CFO | Sale | 7,743 | $1.99 | 501,262 |
| Nov 19, 2025 | Omid Farokhzaddirector, officer: CEO AND CHAIR | Sale | 33,838 | $1.97 | 1,238,230 |
| Nov 19, 2025 | David R. Hornofficer: PRESIDENT & CFO | Sale | 6,797 | $1.97 | 436,802 |
House and Senate disclosures
Not reported.