SERA PROGNOSTICS, INC. - Class A Common Stock $0.0001 par value per share (SERA)

Q: What does CUSIP 81749D107 represent in this 13F holders report?

CUSIP 81749D107 is the security identifier for SERA - SERA PROGNOSTICS, INC. - Class A Common Stock $0.0001 par value per share used to aggregate holder disclosures.

Q: How many institutions held SERA - SERA PROGNOSTICS, INC. - Class A Common Stock $0.0001 par value per share in Q1 2022?

41 institutional investors reported SERA - SERA PROGNOSTICS, INC. - Class A Common Stock $0.0001 par value per share for Q1 2022. Use the holders table for investor-level position and value details.

CUSIP: 81749D107

Q1 2022 13F Holders as of 31 Mar 2022

Security type / class: Equity / Class A Common Stock $0.0001 par value per share
Total 13F shares: 9,651,032
Total 13F value: $36,596,601
Share change: +371,257
SEC-reported price per share: $3.79
Number of holders: 41
Value change: +$1,338,975
Number of buys: 22
Number of sells: 10
Shares outstanding: 38,190,361

Security key

81749D107

Report period

Q1 2022

Institutions

Top holders

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

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 81749D107

Newer quarter: Q4 2025

Recent filing periods:

Q3 2026 Q4 2025

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

INTERWEST VENTURE MANAGEM...

Disclosed value leader

INTERWEST VENTURE MANAGEM...

Comparable rows

0/15

Latest evidence

10 Jan 2022

13F 3/4/5 Highest disclosed value: $16,600,000 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

INTERWEST VENTURE MANAGEMENT CO has the largest disclosed position value at $16.6M.

0 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 INTERWEST VENTURE MANAGEMENT CO's linked filing trail.

Disclosed position value Top 5

INTERWEST VENTURE MANAGEMENT CO $16.6M

Vivo Capital, LLC $12.75M

Gates Foundation $5.4M

OUP Management Co., LLC $4.41M

SANDERS MORRIS HARRIS LLC $3.94M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
INTERWEST VENTURE MANAGEMENT CO	13F Company 13F	— denominator unverified	$16,600,000 2,416,241 shares	—	31 Dec 2021
Vivo Capital, LLC	13F Company 13F	— denominator unverified	$12,751,000 1,856,011 shares	—	31 Dec 2021
Gates Foundation	13F Company 13F	— denominator unverified	$5,400,000 779,814 shares	—	31 Dec 2021
OUP Management Co., LLC	13F Company 13F	— denominator unverified	$4,406,000 641,361 shares	—	31 Dec 2021
SANDERS MORRIS HARRIS LLC	13F Company 13F	— denominator unverified	$3,945,000 574,280 shares	—	31 Dec 2021
Fosun International Ltd	13F Company 13F	— denominator unverified	$3,807,000 554,148 shares	—	31 Dec 2021

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 Q1 2022

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

9,651,032

Rows available

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 Q1 2022 vs Q4 2025 Across Filers

Q4 2025 holders

Q1 2022 holders

Holder diff

-15

Investor	Q4 2025 Shares	Q1 2022 Shares	Share Diff	Share Chg %	Q4 2025 value	Q1 2022 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend