Sera Prognostics, Inc.
SERA- Exchange
- Nasdaq
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0001534969
In the last 90 days, Sera Prognostics, Inc. insiders filed 0 open-market purchases and 5 sales; 47 institutions reported holding it in 13F filings for Q2 2026, worth $31.0M in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $63.3K in total
- 5
- 13F holdersQ2 2026, −8 vs. previous quarter
- 47
- 13F valueReported value at the end of Q2 2026
- $31.0M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding SERA, Q2 2026
No superinvestor reported holding SERA at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Sera Prognostics, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 11, 2026 (view filing)4:07 PM ET | Sep 10 | 1 day | Anderson Dyaarl Lee Jr.Chief Commercial Officer | SSaleClass A Common Stock | −1.80K | $2.00 | −$3.60K | −2.3%76.2K after | |
| Sep 11, 2026 (view filing)4:07 PM ET | Sep 10 | 1 day | Lindgardt ZhenyaChief Executive Officer | SSaleClass A Common Stock | −7.02K | $2.00 | −$14.0K | −0.8%837.8K after | |
| Sep 11, 2026 (view filing)4:07 PM ET | Sep 10 | 1 day | Inglis Tiffany Eul DavisChief Medical Officer | SSaleClass A Common Stock | −486 | $2.00 | −$972 | −0.5%91.6K after | |
| Sep 11, 2026 (view filing)4:07 PM ET | Sep 10 | 1 day | Jackson BenjaminGeneral Counsel | SSaleClass A Common Stock | −2.19K | $2.00 | −$4.38K | −1.4%159.6K after | |
| Sep 9, 2026 (view filing)4:07 PM ET | Sep 8 | 1 day | Lindgardt ZhenyaChief Executive Officer | SSaleClass A Common Stock | −20.1K | $2.00 | −$40.3K | −2.3%844.9K after | |
| Jun 15, 2026 (view filing) | Jun 11 | 4 days | Inglis Tiffany Eul DavisChief Medical Officer | SSaleClass A Common Stock | −362 | $2.01 | −$727.62 | −0.4%92.1K after | |
| Jun 15, 2026 (view filing) | Jun 11 | 4 days | Anderson Dyaarl Lee Jr.Chief Commercial Officer | SSaleClass A Common Stock | −4.74K | $2.01 | −$9.53K | −5.7%78.0K after | |
| Jun 15, 2026 (view filing) | Jun 11 | 4 days | Aerts AustinChief Financial Officer | SSaleClass A Common Stock | −2.04K | $2.01 | −$4.09K | −0.7%301.2K after | |
| Jun 15, 2026 (view filing) | Jun 11 | 4 days | Lindgardt ZhenyaChief Executive Officer | SSaleClass A Common Stock | −6.99K | $2.01 | −$14.0K | −0.8%865.0K after | |
| Jun 15, 2026 (view filing) | Jun 11 | 4 days | Jackson BenjaminGeneral Counsel | SSaleClass A Common Stock | −2.18K | $2.01 | −$4.38K | −1.3%161.8K after |
Top 10 13F holders, Q2 2026
The largest institutional positions in Sera Prognostics, Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Baker Bros. Advisors LP | 5,498,170 | $10.0M | 0.05% | 00.0% | Unchanged |
| Whetstone Capital Advisors, LLC | 3,306,889 | $6.02M | 1.59% | 00.0% | Unchanged |
| Standard Life Aberdeen plc | 2,753,525 | $5.01M | 0.01% | +202,750+7.9% | Added |
| Vivo Capital, LLC | 1,650,440 | $3.00M | 0.27% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 1,297,792 | $2.36M | 0.00% | +93,677+7.8% | Added |
| Captrust Financial Advisors | 535,755 | $975.1K | 0.00% | −1,006−0.2% | Reduced |
| Geode Capital Management, LLC | 348,967 | $635.5K | 0.00% | −14,650−4.0% | Reduced |
| BlackRock, Inc. | 221,369 | $402.9K | 0.00% | +25,264+12.9% | Added |
| AWM Investment Company, Inc. | 207,382 | $377.4K | 0.03% | 00.0% | Unchanged |
| Vanguard Fiduciary Trust Co | 170,908 | $311.1K | 0.00% | +1,247+0.7% | Added |