Security key
81749D107
SERA PROGNOSTICS, INC. - Class A Common Stock $0.0001 par value per share (SERA)
CUSIP: 81749D107
Q3 2024 13F Holders as of 30 Sep 2024
- Security type / class
- Equity / Class A Common Stock $0.0001 par value per share
- Total 13F shares
- 17,992,458
- Total 13F value
- $140,341,925
- Share change
- +1,283,661
- SEC-reported price per share
- $7.80
- Number of holders
- 59
- Value change
- +$11,126,226
- Number of buys
- 28
- Number of sells
- 29
- Shares outstanding
- 38,190,361
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2024
Institutions
59
Top holders
10
SERA full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q4 2025
SERA PROGNOSTICS, INC. SEC filings
SERA PROGNOSTICS, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 81749D107
Recent filing periods:
Ownership snapshot
Top reported holders of SERA - SERA PROGNOSTICS, INC. - Class A Common Stock $0.0001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BAKER BROS. ADVISORS LP
Disclosed value leader
BAKER BROS. ADVISORS LP
Comparable rows
15/15
Latest evidence
30 Jun 2024
13F
Lead comparable stake: 14%
Showing 1-6 of 15 holder rows.
Quick read
BAKER BROS. ADVISORS LP leads the comparable SEC ownership view at 14%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BAKER BROS. ADVISORS LP's linked filing trail.
Comparable ownership
Top 5
BAKER BROS. ADVISORS LP
14%
RA CAPITAL MANAGEMENT, L.P.
7.9%
Vivo Capital, LLC
4.3%
BlackRock Finance, Inc.
3.7%
VANGUARD GROUP INC
2.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BAKER BROS. ADVISORS LP |
13F
Company
|
14%
|
$32,171,642
5,434,399 shares
|
— | 30 Jun 2024 |
| RA CAPITAL MANAGEMENT, L.P. |
13F
Company
|
7.9%
|
$17,954,223
3,032,808 shares
|
— | 30 Jun 2024 |
| Vivo Capital, LLC |
13F
Company
|
4.3%
|
$9,770,605
1,650,440 shares
|
— | 30 Jun 2024 |
| BlackRock Finance, Inc. |
13F
Company
|
3.7%
|
$8,346,436
1,409,871 shares
|
— | 30 Jun 2024 |
| VANGUARD GROUP INC |
13F
Company
|
2.9%
|
$6,551,681
1,106,703 shares
|
— | 30 Jun 2024 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
1.4%
|
$3,190,672
538,868 shares
|
— | 30 Jun 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2024
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
59
Shares
17,992,458
Rows available
59
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2024 vs Q4 2025 Across Filers
Q4 2025 holders
56
Q3 2024 holders
59
Holder diff
3
| Investor | Q4 2025 Shares | Q3 2024 Shares | Share Diff | Share Chg % | Q4 2025 value | Q3 2024 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend