SERA PROGNOSTICS, INC.
Total Trades
113
Buys
1
Sells
103
Largest Trade
N/A
Insiders
9
Institutional Funds
40
Inst. Value
$1M+
Activist Filings
23
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Lindgardt Zhenya | CEO | SELL | $15K–$50K | 9K | $2.44 | May 9, 2025 |
| Kearney Paul | Chief Data Officer | SELL | $15K–$50K | 7K | $2.44 | May 9, 2025 |
| Jackson Benjamin | General Counsel | SELL | $15K–$50K | 7K | $2.44 | May 9, 2025 |
| Harrison Robert Gardner | Chief Information … | SELL | $15K–$50K | 7K | $2.44 | May 9, 2025 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 5K | $2.44 | May 9, 2025 |
| Aerts Austin | CFO | SELL | $15K–$50K | 6K | $2.44 | May 9, 2025 |
| Mirza Mansoor Raza | Director | SELL | <$1K | 107 | $3.35 | Apr 8, 2025 |
| Phillips Joshua | Director | SELL | $100K–$500K | 34K | $6.74 | Jan 15, 2025 |
| Jackson Benjamin | General Counsel | SELL | $100K–$500K | 30K | $6.80 | Jan 15, 2025 |
| Harrison Robert Gardner | Chief Information … | SELL | $100K–$500K | 16K | $7.27 | Jan 15, 2025 |
| Kearney Paul | Chief Data Officer | SELL | $50K–$100K | 13K | $7.42 | Jan 15, 2025 |
| Aerts Austin | CFO | SELL | $15K–$50K | 2K | $8.06 | Jan 15, 2025 |
| Mirza Mansoor Raza | Director | SELL | <$1K | 100 | $7.69 | Jan 7, 2025 |
| Mirza Mansoor Raza | Director | SELL | <$1K | 95 | $7.32 | Nov 12, 2024 |
| Lindgardt Zhenya | CEO | SELL | $50K–$100K | 12K | $7.32 | Nov 12, 2024 |
| Kearney Paul | Chief Data Officer | SELL | $15K–$50K | 4K | $7.32 | Nov 12, 2024 |
| Jackson Benjamin | General Counsel | SELL | $15K–$50K | 5K | $7.32 | Nov 12, 2024 |
| Harrison Robert Gardner | Chief Information … | SELL | $15K–$50K | 5K | $7.32 | Nov 12, 2024 |
| Boniface John J. | Chief Scientific O… | SELL | $15K–$50K | 5K | $7.32 | Nov 12, 2024 |
| Aerts Austin | CFO | SELL | $50K–$100K | 7K | $7.32 | Nov 12, 2024 |
| Mirza Mansoor Raza | Director | SELL | <$1K | 96 | $7.15 | Oct 7, 2024 |
| Lindgardt Zhenya | CEO | SELL | $100K–$500K | 27K | $8.11 | Jun 11, 2024 |
| Aerts Austin | CFO | SELL | $15K–$50K | 5K | $8.11 | Jun 11, 2024 |
| Boniface John J. | Chief Scientific O… | EXERCISE | $50K–$100K | 73K | $0.91 | Mar 28, 2024 |
| Boniface John J. | Chief Scientific O… | SELL | $500K+ | 77K | $9.44 | Mar 28, 2024 |
| Lindgardt Zhenya | CEO | SELL | $100K–$500K | 39K | $9.37 | Mar 27, 2024 |
| Aerts Austin | CFO | SELL | $50K–$100K | 8K | $9.37 | Mar 27, 2024 |
| Boniface John J. | Chief Scientific O… | SELL | $100K–$500K | 21K | $9.55 | Mar 26, 2024 |
| Boniface John J. | Chief Scientific O… | SELL | $100K–$500K | 22K | $9.10 | Mar 26, 2024 |
| Jackson Benjamin | General Counsel | SELL | $15K–$50K | 6K | $8.03 | Feb 7, 2024 |
| Boniface John J. | Chief Scientific O… | SELL | $15K–$50K | 6K | $8.03 | Feb 7, 2024 |
| Kearney Paul | Chief Data Officer | SELL | $15K–$50K | 5K | $8.03 | Feb 7, 2024 |
| Harrison Robert Gardner | Chief Information … | SELL | $15K–$50K | 6K | $8.03 | Feb 7, 2024 |
| Lindgardt Zhenya | CEO | SELL | $100K–$500K | 28K | $8.03 | Feb 7, 2024 |
| Aerts Austin | CFO | SELL | $50K–$100K | 10K | $8.03 | Feb 7, 2024 |
| Harrison Robert Gardner | Chief Information … | SELL | $15K–$50K | 5K | $3.23 | Jun 6, 2023 |
| Boniface John J. | Chief Scientific O… | EXERCISE | <$1K | 1K | $0.73 | Jul 27, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 4K | $2.17 | Jul 27, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $1.86 | Jul 19, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $1.84 | Jul 13, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $1.63 | Jul 5, 2022 |
| Boniface John J. | Chief Scientific O… | EXERCISE | <$1K | 1K | $0.73 | Jun 29, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 4K | $1.84 | Jun 29, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $1.31 | Jun 21, 2022 |
| Jackson Benjamin | General Counsel | BUY | $1K–$15K | 8K | $1.20 | Jun 16, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $1.21 | Jun 16, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $1.30 | Jun 7, 2022 |
| Boniface John J. | Chief Scientific O… | EXERCISE | <$1K | 1K | $0.73 | Jun 1, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 4K | $1.43 | Jun 1, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $1.54 | May 24, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 40 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Whetstone Capital Advisors, LLC | 3.5M | $1M+ | SH |
| Aberdeen Group plc | 2.3M | $1M+ | SH |
| Vivo Capital, LLC | 1.7M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 275K | $500K+ | SH |
| AWM Investment Company, Inc. | 207K | $500K+ | SH |
| VANGUARD GROUP INC | 170K | $500K+ | SH |
| STATE STREET CORP | 125K | $100K–$500K | SH |
| GSA CAPITAL PARTNERS LLP | 107K | $100K–$500K | SH |
| Bank of New York Mellon Corp | 73K | $100K–$500K | SH |
| Perigon Wealth Management, LLC | 73K | $100K–$500K | SH |
| MORGAN STANLEY | 72K | $100K–$500K | SH |
| Requisite Capital Management, LLC | 56K | $100K–$500K | SH |
| Twelve Points Wealth Management LLC | 43K | $100K–$500K | SH |
| Ballentine Partners, LLC | 50K | $100K–$500K | SH |
| HighTower Advisors, LLC | 42K | $100K–$500K | SH |
| Squarepoint Ops LLC | 36K | $100K–$500K | SH |
| GOLDMAN SACHS GROUP INC | 29K | $50K–$100K | SH |
| Birch Hill Investment Advisors LLC | 27K | $50K–$100K | SH |
| Cetera Investment Advisers | 25K | $50K–$100K | SH |
| JANE STREET GROUP, LLC | 24K | $50K–$100K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Whetstone Capital Advisors, LLC
SC 13G/A · Jan 16, 2026
9.2%
3.5M shares
Whetstone Capital Advisors, LLC
SC 13G · Sep 8, 2025
9.9%
3.6M shares
SC 13G/A · Aug 14, 2025
0.0%
0 shares
SC 13G · Aug 5, 2025
6.1%
2.2M shares
SC 13G/A · May 15, 2025
4.5%
1.7M shares
SC 13D/A · Feb 14, 2025
7.6%
2.6M shares
SC 13D · Feb 14, 2025
16.1%
5.5M shares
SC 13G/A · Nov 14, 2024
9.4%
3.0M shares
aMoon Growth Fund Limited Partnership
SC 13G/A · Nov 4, 2024
5.7%
1.9M shares
SC 13G · Apr 1, 2024
6.5%
2.0M shares
SC 13G/A · Feb 13, 2024
5.4%
1.7M shares
SC 13G/A · Jan 25, 2024
4.3%
1.3M shares
InterWest Partners X, LP (“ IWP X”)
SC 13G/A · Jan 19, 2024
0.4%
126K shares
SC 13G · Jan 10, 2024
17.9%
5.4M shares
aMoon Growth Fund Limited Partnership
SC 13G/A · Jan 3, 2024
9.5%
3.0M shares
InterWest Partners X, LP (“IWP X”)
SC 13G/A · Feb 10, 2023
8.5%
2.5M shares
aMoon Growth Fund Limited Partnership
SC 13G/A · Jan 9, 2023
6.2%
1.9M shares
SC 13G/A · Jul 19, 2022
3.0%
0 shares
Blue Ox Healthcare Partners, LLC (1)
SC 13G · Jun 2, 2022
15.4%
0 shares
SC 13G · Feb 22, 2022
10.1%
3.2M shares
InterWest Partners X, LP (“IWP X”)
SC 13G · Feb 14, 2022
8.6%
2.5M shares
aMoon Growth Fund Limited Partnership
SC 13G · Jan 24, 2022
6.2%
1.9M shares
SC 13G · Jan 4, 2022
8.6%
2.5M shares