Quick Takeaways
- SERA - SERA PROGNOSTICS, INC. has 26 insiders with reported activity on this page.
- Net insider value flow over the last year: -$830,126.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 26 Insiders of SERA PROGNOSTICS, INC.
- Symbol
- SERA on Nasdaq
- Location
- Salt Lake City, UT
What Changed
- Buy value: ; sell value: $830,126.
- Net share flow: -323,479.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$830,126.
Buys
$0
Shares: 0
Insiders: 0
Sells
$830,126
Shares: 323,479
Insiders: 8
Net
-$830,126
Shares: -323,479
Insiders: -8
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 53,133 | $0 | $103,854 | -$103,854 |
| 3-6 | 0 | 84,569 | $0 | $256,833 | -$256,833 |
| 6-9 | 0 | 107,429 | $0 | $311,722 | -$311,722 |
| 9-12 | 0 | 78,348 | $0 | $157,716 | -$157,716 |
SERA PROGNOSTICS, INC. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Zhenya Lindgardt | Chief Executive Officer, Director | $2,464,001 | -$315,459 | -11% | Mixed | 12 Mar 2026 |
| Gregory C. Critchfield | Director | $1,826,762 | Mixed | 05 Jun 2025 | ||
| Blue Ox Healthcare Partners, LLC | 10%+ Owner | $1,339,791 | Mixed | 18 Jul 2022 | ||
| Douglas Carl Fisher | Chief Business Officer | $1,151,334 | Mixed | 10 Jan 2022 | ||
| Austin Aerts | Chief Financial Officer | $851,920 | -$94,139 | -10% | Mixed | 12 Mar 2026 |
| Benjamin G. Jackson | General Counsel | $438,660 | -$50,382 | -10% | Mixed | 12 Mar 2026 |
| Paul Kearney | Chief Data Officer | $334,480 | -$195,220 | -37% | Filing P/S | 12 Mar 2026 |
| John J. Boniface | Chief Scientific Officer | $297,517 | -$58,322 | -16% | Filing P/S | 12 Mar 2026 |
| Tiffany Eul Davis Inglis | Chief Medical Officer | $255,126 | Mixed | 12 Mar 2026 | ||
| Dyaarl Lee Anderson Jr. | Chief Commercial Officer | $219,610 | Mixed | 12 Mar 2026 | ||
| Jay M. Moyes | Chief Financial Officer | $185,989 | Mixed | 07 Jun 2023 | ||
| Mansoor Raza Mirza | Director | $176,107 | -$4,307 | -2.4% | Filing P/S | 05 Dec 2025 |
| Robert Gardner Harrison | Chief Information Officer | $156,492 | -$99,738 | -39% | Filing P/S | 12 Mar 2026 |
| Michael R. Foley | Chief Medical Officer | $140,940 | Mixed | 12 Jul 2023 | ||
| Jeffrey Thomas Elliott | Director | $127,021 | Mixed | 20 Mar 2025 | ||
| Joshua Phillips | Director | $126,551 | Mixed | 05 Jun 2025 | ||
| Kim P. Kamdar | Director | $96,096 | Mixed | 04 Feb 2026 | ||
| Nadia Altomare | Chief Commercial Officer | $95,526 | Mixed | 09 Jun 2023 | ||
| Marcus Dean Wilson | Director | $57,719 | Mixed | 05 Jun 2025 | ||
| Jane F. Barlow | Director | $50,422 | Mixed | 05 Jun 2025 | ||
| Ryan Trimble | Director | $50,422 | Mixed | 30 Jun 2025 | ||
| Sandra Aj Lawrence | Director | $35,164 | -$12,558 | -26% | Filing P/S | 06 Mar 2026 |
| Nichole L. Martin | Vp Of Q/R & Hippa Priv. Off | Mixed | 14 Jul 2021 | |||
| John M. Peltier | SVP of Lab Operations | Mixed | 14 Jul 2021 | |||
| BAKER BROS. ADVISORS LP | 10%+ Owner | Mixed | 12 Feb 2025 | |||
| Thomas Garite | VP, Clinical Sciences | Mixed | 26 Aug 2021 |
Top shareholders of SERA PROGNOSTICS, INC. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BAKER BROS. ADVISORS LP |
13D/G
3/4/5
13F
|
10%+ Owner · Company |
16%
|
5,498,170
|
$18,418,870 | $0 | 12 Feb 2025 | |
| Whetstone Capital Advisors, LLC |
13F
13D/G
|
Company |
8.6%
from 13D/G
|
3,459,713
|
$10,206,153 | — | 31 Dec 2025 | |
| Chione Ltd |
13D/G
|
— |
7.6%
|
2,605,351
|
$8,727,926 | $0 | 11 Feb 2025 | |
| Aberdeen Group plc |
13F
13D/G
|
Company |
6.1%
from 13D/G
|
2,279,699
|
$6,725,112 | — | 31 Dec 2025 | |
| Vivo Capital IX, LLC |
13D/G
|
— |
4.5%
|
1,650,440
|
$5,528,974 | $0 | 31 Mar 2025 | |
| Vivo Capital, LLC |
13F
|
Company |
4.3%
|
1,650,440
|
$4,868,798 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
3.2%
|
1,239,449
|
$3,656,375 | — | 31 Dec 2025 | |
| Zhenya Lindgardt |
3/4/5
|
Chief Executive Officer, Director |
—
mixed-class rows
|
1,132,196
mixed-class rows
|
$2,464,001 | -$315,459 | 12 Mar 2026 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
1.8%
|
707,614
|
$2,087,462 | — | 31 Dec 2025 | |
| Gregory C. Critchfield |
3/4/5
|
Director |
—
mixed-class rows
|
847,866
mixed-class rows
|
$1,826,762 | — | 05 Jun 2025 | |
| CAPTRUST FINANCIAL ADVISORS |
13F
|
Company |
1.4%
|
536,766
|
$1,583,460 | — | 31 Dec 2025 | |
| Blue Ox Healthcare Partners, LLC |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
256,665
|
$1,339,791 | — | 18 Jul 2022 | |
| Douglas Carl Fisher |
3/4/5
|
Chief Business Officer |
—
class O/S missing
|
220,562
|
$1,151,334 | — | 10 Jan 2022 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.87%
|
334,639
|
$987,474 | — | 31 Dec 2025 | |
| Austin Aerts |
3/4/5
|
Chief Financial Officer |
—
mixed-class rows
|
377,217
mixed-class rows
|
$851,920 | -$94,139 | 12 Mar 2026 | |
| AWM Investment Company, Inc. |
13F
|
Company |
0.54%
|
207,382
|
$611,777 | — | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
|
Company |
0.49%
|
186,751
|
$550,915 | — | 31 Dec 2025 | |
| Benjamin G. Jackson |
3/4/5
|
General Counsel |
—
mixed-class rows
|
227,485
mixed-class rows
|
$438,660 | -$50,382 | 12 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
0.32%
|
124,792
|
$368,136 | — | 31 Dec 2025 | |
| Paul Kearney |
3/4/5
|
Chief Data Officer |
0.43%
|
163,961
|
$334,480 | -$195,220 | 12 Mar 2026 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.29%
|
113,178
|
$333,875 | — | 31 Dec 2025 | |
| GSA CAPITAL PARTNERS LLP |
13F
|
Company |
0.28%
|
107,235
|
$316,000 | — | 31 Dec 2025 | |
| John J. Boniface |
3/4/5
|
Chief Scientific Officer |
0.38%
|
145,842
|
$297,517 | -$58,322 | 12 Mar 2026 | |
| Corient Private Wealth LLC |
13F
|
Company |
0.26%
|
100,000
|
$290,000 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.25%
|
96,535
|
$284,778 | — | 31 Dec 2025 | |
| Tiffany Eul Davis Inglis |
3/4/5
|
Chief Medical Officer |
—
mixed-class rows
|
119,471
mixed-class rows
|
$255,126 | — | 12 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
0.21%
|
80,968
|
$238,856 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.2%
|
75,267
|
$222,038 | — | 31 Dec 2025 | |
| Dyaarl Lee Anderson Jr. |
3/4/5
|
Chief Commercial Officer |
—
mixed-class rows
|
98,879
mixed-class rows
|
$219,610 | — | 12 Mar 2026 | |
| Perigon Wealth Management, LLC |
13F
|
Company |
0.19%
|
72,685
|
$214,421 | — | 31 Dec 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.19%
|
71,532
|
$211,019 | — | 31 Dec 2025 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
0.18%
|
68,826
|
$203,037 | — | 31 Dec 2025 | |
| Jay M. Moyes |
3/4/5
|
Chief Financial Officer |
—
mixed-class rows
|
87,430
mixed-class rows
|
$185,989 | — | 07 Jun 2023 | |
| Mansoor Raza Mirza |
3/4/5
|
Director |
—
mixed-class rows
|
82,740
mixed-class rows
|
$176,107 | -$4,307 | 05 Dec 2025 | |
| Requisite Capital Management, LLC |
13F
|
Company |
0.14%
|
55,648
|
$164,162 | — | 31 Dec 2025 | |
| Twelve Points Wealth Management LLC |
13F
|
Company |
0.11%
|
43,388
|
$160,102 | — | 31 Dec 2025 | |
| Robert Gardner Harrison |
3/4/5
|
Chief Information Officer |
0.2%
|
76,712
|
$156,492 | -$99,738 | 12 Mar 2026 | |
| Ballentine Partners, LLC |
13F
|
Company |
0.13%
|
49,664
|
$146,509 | — | 31 Dec 2025 | |
| Michael R. Foley |
3/4/5
|
Chief Medical Officer |
—
mixed-class rows
|
69,700
mixed-class rows
|
$140,940 | — | 12 Jul 2023 | |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.12%
|
45,705
|
$134,830 | — | 31 Dec 2025 | |
| Jeffrey Thomas Elliott |
3/4/5
|
Director |
—
mixed-class rows
|
77,897
mixed-class rows
|
$127,021 | — | 20 Mar 2025 | |
| Joshua Phillips |
3/4/5
|
Director |
—
mixed-class rows
|
82,005
mixed-class rows
|
$126,551 | — | 05 Jun 2025 | |
| HighTower Advisors, LLC |
13F
|
Company |
0.11%
|
42,234
|
$124,590 | — | 31 Dec 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.1%
|
36,722
|
$108,330 | — | 31 Dec 2025 | |
| Squarepoint Ops LLC |
13F
|
Company |
0.09%
|
36,322
|
$107,150 | — | 31 Dec 2025 | |
| Kim P. Kamdar |
3/4/5
|
Director |
—
mixed-class rows
|
57,573
mixed-class rows
|
$96,096 | — | 04 Feb 2026 | |
| Nadia Altomare |
3/4/5
|
Chief Commercial Officer |
—
mixed-class rows
|
47,200
mixed-class rows
|
$95,526 | — | 09 Jun 2023 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
0.08%
|
28,982
|
$85,497 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.07%
|
28,599
|
$84,367 | — | 31 Dec 2025 | |
| Birch Hill Investment Advisors LLC |
13F
|
Company |
0.07%
|
27,293
|
$80,514 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for SERA PROGNOSTICS, INC.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Zhenya Lindgardt | SERA | Class A Common Stock | Award | 20.9% | 154,440 | 892,754 | 12 Mar 2026 | Direct | ||
| Zhenya Lindgardt | SERA | Stock Option (right to buy) | Award | 239,442 | 239,442 | 12 Mar 2026 | Direct | |||
| Benjamin G. Jackson | SERA | Class A Common Stock | Award | 38.5% | 44,215 | 158,935 | 12 Mar 2026 | Direct | ||
| Benjamin G. Jackson | SERA | Stock Option (right to buy) | Award | 68,550 | 68,550 | 12 Mar 2026 | Direct | |||
| Tiffany Eul Davis Inglis | SERA | Class A Common Stock | Award | 23.2% | 17,437 | 92,437 | 12 Mar 2026 | Direct | ||
| Tiffany Eul Davis Inglis | SERA | Stock Option (right to buy) | Award | 27,034 | 27,034 | 12 Mar 2026 | Direct | |||
| Dyaarl Lee Anderson Jr. | SERA | Class A Common Stock | Award | 18.6% | 12,455 | 79,569 | 12 Mar 2026 | Direct | ||
| Dyaarl Lee Anderson Jr. | SERA | Stock Option (right to buy) | Award | 19,310 | 19,310 | 12 Mar 2026 | Direct | |||
| Austin Aerts | SERA | Class A Common Stock | Award | 16.7% | 44,215 | 308,667 | 12 Mar 2026 | Direct | ||
| Austin Aerts | SERA | Stock Option (right to buy) | Award | 68,550 | 68,550 | 12 Mar 2026 | Direct | |||
| Zhenya Lindgardt | SERA | Class A Common Stock | Sale | -0.4% | $6,065 | $2.04 | -2,973 | 738,314 | 11 Mar 2026 | Direct |
| Paul Kearney | SERA | Class A Common Stock | Sale | -0.84% | $2,848 | $2.04 | -1,396 | 163,961 | 11 Mar 2026 | Direct |
| Benjamin G. Jackson | SERA | Class A Common Stock | Sale | -0.89% | $2,095 | $2.04 | -1,027 | 114,720 | 11 Mar 2026 | Direct |
| Robert Gardner Harrison | SERA | Class A Common Stock | Sale | -0.92% | $1,461 | $2.04 | -716 | 76,712 | 11 Mar 2026 | Direct |
| John J. Boniface | SERA | Class A Common Stock | Sale | -1.03% | $3,095 | $2.04 | -1,517 | 145,842 | 11 Mar 2026 | Direct |
| Austin Aerts | SERA | Class A Common Stock | Sale | -0.38% | $2,079 | $2.04 | -1,019 | 264,452 | 11 Mar 2026 | Direct |
| Zhenya Lindgardt | SERA | Class A Common Stock | Sale | -2.96% | $43,014 | $1.90 | -22,639 | 741,287 | 10 Mar 2026 | Direct |
| Austin Aerts | SERA | Class A Common Stock | Sale | -2.24% | $11,531 | $1.90 | -6,069 | 265,471 | 10 Mar 2026 | Direct |
| Paul Kearney | SERA | Class A Common Stock | Sale | -1.21% | $3,971 | $1.96 | -2,026 | 165,357 | 09 Mar 2026 | Direct |
| Benjamin G. Jackson | SERA | Class A Common Stock | Sale | -2.62% | $6,113 | $1.96 | -3,119 | 115,747 | 09 Mar 2026 | Direct |
| Robert Gardner Harrison | SERA | Class A Common Stock | Sale | -4.16% | $6,586 | $1.96 | -3,360 | 77,428 | 09 Mar 2026 | Direct |
| John J. Boniface | SERA | Class A Common Stock | Sale | -2.02% | $5,954 | $1.96 | -3,038 | 147,359 | 09 Mar 2026 | Direct |
| Austin Aerts | SERA | Class A Common Stock | Sale | -0.25% | $1,321 | $1.96 | -674 | 271,540 | 09 Mar 2026 | Direct |
| Sandra Aj Lawrence | SERA | Class A Common Stock | Sale | -7.96% | $3,042 | $1.95 | -1,560 | 18,033 | 06 Mar 2026 | Direct |
| Robert Gardner Harrison | SERA | Class A Common Stock | Sale | -2.42% | $4,680 | $2.34 | -2,000 | 80,788 | 24 Feb 2026 | Direct |
| Kim P. Kamdar | SERA | Class A Common Stock | Other | 11% | 3,231 | 32,573 | 04 Feb 2026 | Direct | ||
| Kim P. Kamdar | SERA | Class A Common Stock | Other | -100% | -30,920 | 0 | 04 Feb 2026 | Held by Domain Associates, LLC | ||
| Robert Gardner Harrison | SERA | Class A Common Stock | Sale | -2.36% | $5,940 | $2.97 | -2,000 | 82,788 | 27 Jan 2026 | Direct |
| Robert Gardner Harrison | SERA | Class A Common Stock | Sale | -2.3% | $6,000 | $3.00 | -2,000 | 84,788 | 30 Dec 2025 | Direct |
| Zhenya Lindgardt | SERA | Class A Common Stock | Sale | -0.54% | $13,753 | $3.31 | -4,155 | 763,926 | 10 Dec 2025 | Direct |
| Paul Kearney | SERA | Class A Common Stock | Sale | -0.72% | $4,015 | $3.31 | -1,213 | 167,383 | 10 Dec 2025 | Direct |
| Benjamin G. Jackson | SERA | Class A Common Stock | Sale | -0.74% | $2,953 | $3.31 | -892 | 118,866 | 10 Dec 2025 | Direct |
| Robert Gardner Harrison | SERA | Class A Common Stock | Sale | -0.7% | $2,039 | $3.31 | -616 | 86,788 | 10 Dec 2025 | Direct |
| John J. Boniface | SERA | Class A Common Stock | Sale | -0.88% | $4,409 | $3.31 | -1,332 | 150,397 | 10 Dec 2025 | Direct |
| Austin Aerts | SERA | Class A Common Stock | Sale | -0.32% | $2,890 | $3.31 | -873 | 272,214 | 10 Dec 2025 | Direct |
| Zhenya Lindgardt | SERA | Class A Common Stock | Sale | -3.54% | $85,774 | $3.04 | -28,215 | 768,081 | 09 Dec 2025 | Direct |
| Austin Aerts | SERA | Class A Common Stock | Sale | -1.88% | $15,905 | $3.04 | -5,232 | 273,087 | 09 Dec 2025 | Direct |
| Sandra Aj Lawrence | SERA | Class A Common Stock | Sale | -7.37% | $4,758 | $3.05 | -1,560 | 19,593 | 08 Dec 2025 | Direct |
| Mansoor Raza Mirza | SERA | Class A Common Stock | Sale | -0.5% | $891 | $3.05 | -292 | 57,740 | 05 Dec 2025 | Direct |
| Robert Gardner Harrison | SERA | Class A Common Stock | Sale | -2.24% | $5,860 | $2.93 | -2,000 | 87,404 | 02 Dec 2025 | Direct |
| Paul Kearney | SERA | Class A Common Stock | Sale | -16% | $94,677 | $2.94 | -32,203 | 168,596 | 02 Dec 2025 | Direct |
| Paul Kearney | SERA | Class A Common Stock | Options Exercise | 19.1% | 32,203 | 200,799 | 02 Dec 2025 | Direct | ||
| Paul Kearney | SERA | Stock Option (right to buy) | Options Exercise | -100% | -32,203 | 0 | 02 Dec 2025 | Direct | ||
| Paul Kearney | SERA | Class A Common Stock | Sale | -1.16% | $6,971 | $3.51 | -1,986 | 168,596 | 26 Nov 2025 | Direct |
| Paul Kearney | SERA | Class A Common Stock | Options Exercise | 1.18% | 1,986 | 170,582 | 26 Nov 2025 | Direct | ||
| Paul Kearney | SERA | Stock Option (right to buy) | Options Exercise | -5.81% | -1,986 | 32,203 | 26 Nov 2025 | Direct | ||
| Zhenya Lindgardt | SERA | Class A Common Stock | Sale | -1.44% | $30,376 | $2.62 | -11,594 | 796,296 | 10 Nov 2025 | Direct |
| Paul Kearney | SERA | Class A Common Stock | Sale | -4.03% | $18,531 | $2.62 | -7,073 | 168,596 | 10 Nov 2025 | Direct |
| Benjamin G. Jackson | SERA | Class A Common Stock | Sale | -5.57% | $18,495 | $2.62 | -7,059 | 119,758 | 10 Nov 2025 | Direct |
| John J. Boniface | SERA | Class A Common Stock | Sale | -4.87% | $20,350 | $2.62 | -7,767 | 151,726 | 10 Nov 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.