Sera Prognostics, Inc. (SERA) Insider Trading
Over the last 3 months, SERA insiders made 0 open-market buys and 13 sales, a net sale of -$96K (SEC Form 4). Over the last 6 months, 24 institutions increased and 31 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
13
Net (3m)
-$96.1K
Insider trades by month Buys Sells
Oct
Nov
Dec
Jan
Feb
Mar
Context3-month price +1.5%Institutions reducing (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 1, 2026 | Jackson Benjaminofficer: General Counsel | Grant | 5,000 | $1.84 |
| Jun 1, 2026 | Anderson Dyaarl Lee Jr.officer: Chief Commercial Officer | Grant | 3,168 | $1.84 |
| Mar 13, 2026 | Aerts Austinofficer: Chief Financial Officer | Grant | 44,215 | — |
| Mar 13, 2026 | Anderson Dyaarl Lee Jr.officer: Chief Commercial Officer | Grant | 19,310 | $1.99 |
| Mar 13, 2026 | Anderson Dyaarl Lee Jr.officer: Chief Commercial Officer | Grant | 12,455 | — |
| Mar 13, 2026 | Inglis Tiffany Eul Davisofficer: Chief Medical Officer | Grant | 27,034 | $1.99 |
| Mar 13, 2026 | Inglis Tiffany Eul Davisofficer: Chief Medical Officer | Grant | 17,437 | — |
| Mar 13, 2026 | Jackson Benjaminofficer: General Counsel | Grant | 68,550 | $1.99 |
| Mar 13, 2026 | Jackson Benjaminofficer: General Counsel | Grant | 44,215 | — |
| Mar 13, 2026 | Lindgardt Zhenyadirector, officer: Chief Executive Officer | Grant | 154,440 | — |
| Mar 13, 2026 | Lindgardt Zhenyadirector, officer: Chief Executive Officer | Grant | 239,442 | $1.99 |
| Mar 13, 2026 | Aerts Austinofficer: Chief Financial Officer | Grant | 68,550 | $1.99 |
| Mar 12, 2026 | Aerts Austinofficer: Chief Financial Officer | Sell | 1,019 | $2.04 |
| Mar 12, 2026 | Lindgardt Zhenyadirector, officer: Chief Executive Officer | Sell | 22,639 | $1.90 |
| Mar 12, 2026 | Lindgardt Zhenyadirector, officer: Chief Executive Officer | Sell | 2,973 | $2.04 |
| Mar 12, 2026 | Kearney Paulofficer: Chief Data Officer | Sell | 1,396 | $2.04 |
| Mar 12, 2026 | Jackson Benjaminofficer: General Counsel | Sell | 1,027 | $2.04 |
| Mar 12, 2026 | Harrison Robert Gardnerofficer: Chief Information Officer | Sell | 716 | $2.04 |
| Mar 12, 2026 | Boniface John J.officer: Chief Scientific Officer | Sell | 1,517 | $2.04 |
| Mar 12, 2026 | Aerts Austinofficer: Chief Financial Officer | Sell | 6,069 | $1.90 |
| Mar 10, 2026 | Harrison Robert Gardnerofficer: Chief Information Officer | Sell | 3,360 | $1.96 |
| Mar 10, 2026 | Kearney Paulofficer: Chief Data Officer | Sell | 2,026 | $1.96 |
| Mar 10, 2026 | Jackson Benjaminofficer: General Counsel | Sell | 3,119 | $1.96 |
| Mar 10, 2026 | Aerts Austinofficer: Chief Financial Officer | Sell | 674 | $1.96 |
| Mar 10, 2026 | Boniface John J.officer: Chief Scientific Officer | Sell | 3,038 | $1.96 |
| Mar 6, 2026 | Lawrence Sandra AJdirector | Sell | 1,560 | $1.95 |
| Feb 24, 2026 | Harrison Robert Gardnerofficer: Chief Information Officer | Sell | 2,000 | $2.34 |
| Jan 27, 2026 | Harrison Robert Gardnerofficer: Chief Information Officer | Sell | 2,000 | $2.97 |
| Dec 30, 2025 | Harrison Robert Gardnerofficer: Chief Information Officer | Sell | 2,000 | $3.00 |
| Dec 11, 2025 | Lindgardt Zhenyadirector, officer: Chief Executive Officer | Sell | 4,155 | $3.31 |
Source: SERA SEC Form 4 filings, latest Jun 1, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their SERA positions over the last 6 months (SEC Form 13F).
Increased
24
New positions
14
Reduced
31
Sold out
19
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BAKER BROS. ADVISORS LP | Unchanged | 5.5M | May 15, 2026 |
| BAKER BROS. ADVISORS LP | Unchanged | 5.5M | Feb 17, 2026 |
| WHETSTONE CAPITAL ADVISORS, LLC | Reduced | 3.5M | Feb 13, 2026 |
| WHETSTONE CAPITAL ADVISORS, LLC | Reduced | 3.3M | May 15, 2026 |
| ABRDN PLC | Increased | 2.6M | Apr 29, 2026 |
| PSP Research LLC | New Position | 2.4M | Apr 17, 2026 |
| ABRDN PLC | Unchanged | 2.3M | Jan 16, 2026 |
| VIVO CAPITAL, LLC | Unchanged | 1.7M | Feb 13, 2026 |
| VIVO CAPITAL, LLC | Unchanged | 1.7M | May 20, 2026 |
| VANGUARD GROUP INC | Increased | 1.2M | Jan 29, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 1.2M | May 15, 2026 |
| CITADEL ADVISORS LLC | Increased | 708K | Feb 17, 2026 |
| CAPTRUST FINANCIAL ADVISORS | Reduced | 537K | Feb 17, 2026 |
| CAPTRUST FINANCIAL ADVISORS | Reduced | 537K | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 364K | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.