Sera Prognostics Ownership | Who Owns Sera Prognostics?
Sera Prognostics Ownership Summary
Sera Prognostics is owned by 42.03% institutional investors, 11.68% insiders, and 46.29% retail investors. Baker bros. advisors lp is the largest institutional shareholder, holding 11.54% of SERA shares. abrdn Healthcare Investors is the top mutual fund, with 3.31% of its assets in Sera Prognostics shares.
SERA Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Sera Prognostics | 42.03% | 11.68% | 46.29% |
| Sector | Healthcare Stocks | 35.58% | 11.87% | 52.55% |
| Industry | Diagnostics & Research Stocks | 50.92% | 10.77% | 38.30% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Baker bros. advisors lp | 5.50M | 11.54% | $11.16M |
| Whetstone capital advisors | 3.31M | 6.94% | $6.71M |
| Abrdn | 2.55M | 5.35% | $5.18M |
| Blackrock | 1.41M | 4.38% | $8.35M |
| Vivo capital | 1.65M | 3.46% | $3.35M |
| Vanguard group | 1.24M | 2.50% | $3.66M |
| Captrust financial advisors | 536.76K | 1.13% | $1.09M |
| Geode capital management | 363.62K | 0.76% | $738.51K |
| Sanders morris harris | 314.95K | 0.66% | $639.35K |
| Citadel advisors | 248.91K | 0.52% | $505.29K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Whetstone capital advisors | 3.31M | 2.33% | $6.71M |
| Vivo capital | 1.65M | 0.28% | $3.35M |
| Sanders morris harris | 314.95K | 0.10% | $639.35K |
| Baker bros. advisors lp | 5.50M | 0.06% | $11.16M |
| Awm investment company | 207.38K | 0.05% | $420.99K |
| Requisite capital management | 55.65K | 0.02% | $112.97K |
| Twelve points wealth management | 43.39K | 0.02% | $88.08K |
| Gsa capital partners llp | 104.97K | 0.01% | $213.00K |
| Riverview capital advisers | 12.67K | 0.01% | $25.72K |
| Abrdn | 2.55M | 0.01% | $5.18M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Blackrock | 1.41M | 0.00% | 1.29M |
| Sanders morris harris | 314.95K | 0.10% | 314.95K |
| Abrdn | 2.55M | 0.01% | 271.08K |
| Vanguard fiduciary trust | 169.66K | 0.00% | 169.66K |
| Segall bryant & hamill | 100.00K | 0.00% | 100.00K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Ra capital management | - | - | -3.03M |
| Citadel advisors | 248.91K | 0.00% | -458.70K |
| Whetstone capital advisors | 3.31M | 2.33% | -152.82K |
| Perkins capital management | - | - | -131.00K |
| Ensign peak advisors | - | - | -102.16K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Vanguard fiduciary trust | 169.66K | 0.00% | 169.66K | $344.41K |
| Segall bryant & hamill | 100.00K | 0.00% | 100.00K | $193.00K |
| Wellington management group llp | 27.68K | - | 27.68K | $163.88K |
| Catalyst funds management pty | 23.56K | 0.01% | 23.56K | $47.84K |
| Xtx topco | 16.49K | 0.00% | 16.49K | $33.48K |
Sold Out
| Holder | Change |
|---|---|
| Sterling capital management | -28.00 |
| Gamma investing | -40.00 |
| Ronald blue trust | -90.00 |
| Rise advisors | -172.00 |
| Citigroup | -200.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 55 | -1.79% | 20,032,381 | 13.56% | 42 | 3.31% | 15 | -25.00% | 17 | 30.77% |
| Dec 31, 2025 | 18 | -70.49% | 3,975,447 | -78.10% | 8 | 0.59% | 7 | -75.86% | 2 | -80.00% |
| Sep 30, 2025 | 25 | -53.70% | 4,390,411 | -75.39% | 8 | 0.68% | 12 | -52.00% | 3 | -86.96% |
| Jun 30, 2025 | 58 | -18.31% | 18,609,445 | -7.56% | 37 | 1.65% | 27 | -18.18% | 24 | 26.32% |
| Mar 31, 2025 | 72 | -7.69% | 20,231,380 | 11.75% | 48 | 1.65% | 34 | -27.66% | 19 | 46.15% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| abrdn Healthcare Investors | 1.30M | 3.31% | - |
| abrdn Healthcare Opportunities | 1.25M | 3.21% | - |
| Vanguard Total Stock Mkt Idx Inv | 887.02K | 2.27% | - |
| Invesco Dorsey Wright SmallCap Momt ETF | 603.77K | 1.79% | 1.09K |
| iShares Russell 2000 ETF | 671.86K | 1.78% | - |
| abrdn Healthcare Opportunities Fund | 640.00K | 1.70% | 151.54K |
| Vanguard Institutional Extnd Mkt Idx Tr | 381.46K | 0.97% | 76.21K |
| Fidelity Small Cap Index | 288.83K | 0.77% | - |
| iShares Russell 2000 Growth ETF | 236.00K | 0.63% | - |
| JPMorgan US Small Company L | 199.43K | 0.53% | -77.13K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jun 11, 2026 | Anderson Dyaarl Lee Jr. | Chief Commercial Officer | Sell | $9.53K |
| Jun 11, 2026 | Aerts Austin | Chief Financial Officer | Sell | $4.09K |
| Jun 11, 2026 | Lindgardt Zhenya | Chief Executive Officer | Sell | $14.05K |
| Jun 11, 2026 | Inglis Tiffany Eul Davis | Chief Medical Officer | Sell | $727.62 |
| Jun 11, 2026 | Jackson Benjamin | General Counsel | Sell | $4.38K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 3 |
| 2026 Q1 | - | 16 |
| 2025 Q4 | - | 24 |
| 2025 Q3 | - | 23 |
| 2025 Q2 | - | 17 |
SERA Ownership FAQ
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