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 |
|---|---|---|---|---|---|---|
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $1.55 | May 17, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $1.97 | May 10, 2022 |
| Boniface John J. | Chief Scientific O… | EXERCISE | <$1K | 1K | $0.73 | May 4, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 1K | $2.17 | May 4, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $2.17 | May 3, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $2.17 | Apr 26, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $2.08 | Apr 20, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $2.66 | Apr 13, 2022 |
| Boniface John J. | Chief Scientific O… | EXERCISE | <$1K | 1K | $0.73 | Apr 7, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 4K | $3.26 | Apr 7, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $3.73 | Mar 30, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $3.68 | Mar 23, 2022 |
| Boniface John J. | Chief Scientific O… | SELL | $1K–$15K | 3K | $3.94 | Mar 15, 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