13F

Stock

Sera Prognostics, Inc.

SERA · held by 56 managers

Reported value

$40.3M

Holders

56

+8 new · −11 exited

Holders’ est. mark

−$14.2M

Price effect on 45 books still in the name

Largest holder

$11.2M

BAKER BROS. ADVISORS LP

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
BAKER BROS. ADVISORS LP5.5M$11.2M−$5.06MCut−$5.06M
Whetstone Capital Advisors, LLC3.31M$6.71M−$3.04MCut−$3.49M
Aberdeen Group plc2.55M$5.18M−$2.1MCut−$1.55M
PSP Research LLC2.4M$4.87MNew
Vivo Capital, LLC1.65M$3.35M−$1.52MCut−$1.52M
VANGUARD CAPITAL MANAGEMENT LLC1.2M$2.44MHeld
CAPTRUST FINANCIAL ADVISORS536.8K$1.09M−$493.8KCut−$493.8K
GEODE CAPITAL MANAGEMENT, LLC363.6K$738.5K−$307.8KCut−$249K
SANDERS MORRIS HARRIS LLC314.9K$639.3KNew
Citadel248.9K$505.3K−$229KCut−$1.58M
AWM Investment Company, Inc.207.4K$421K−$190.8KCut−$190.8K
BlackRock, Inc.196.1K$398.1K−$171.8KCut−$152.8K
VANGUARD FIDUCIARY TRUST CO169.7K$344.4KHeld
State Street124.8K$253.3K−$114.8KCut−$114.8K
MORGAN STANLEY105K$213.2K−$74.5KCut−$25.7K
NORTHERN TRUST CORP96.5K$196K−$88.8KCut−$88.8K
MILLENNIUM MANAGEMENT LLC91.5K$185.8K−$84.2KCut−$148.1K
Perigon Wealth Management, LLC72.7K$147.6K−$66.9KCut−$66.9K
Bank of New York Mellon Corp60.9K$123.7K−$56.1KCut−$98.4K
Requisite Capital Management, LLC55.6K$113K−$51.2KCut−$51.2K
JANE STREET GROUP, LLC53.9K$109.4K−$49.6KCut−$93.6K
Ballentine Partners, LLC49.7K$100.8K−$45.7KCut−$45.7K
BRIDGEWAY CAPITAL MANAGEMENT, LLC45.7K$92.8K−$42KCut−$42K
Twelve Points Wealth Management LLC43.4K$88.1K−$72KCut−$72K
HighTower Advisors, LLC42.2K$85.7K−$38.9KCut−$38.9K
BARCLAYS PLC32K$64.9K−$29.4KCut−$43.4K
Squarepoint Ops LLC31.4K$63.8K−$28.9KCut−$43.4K
Birch Hill Investment Advisors LLC27.3K$55.4K−$25.1KCut−$25.1K
Cetera Investment Advisers25K$50.8K−$23KCut−$23K
Catalyst Funds Management Pty Ltd23.6K$47.8KNew
TWO SIGMA INVESTMENTS, LP22K$44.6K−$20.2KCut−$20.2K
Qube Research & Technologies Ltd19.9K$40.4K−$18.3KCut−$45.1K
DIMENSIONAL FUND ADVISORS LP19.5K$39.3K−$18.2KCut−$28.2K
GOLDMAN SACHS GROUP INC18.5K$37.5K−$17KCut−$46.9K
XTX Topco Ltd16.5K$33.5KNew
UBS Group AG14.9K$30.2K−$13.7KCut−$44.1K
Riverview Capital Advisers, LLC12.7K$25.7K−$11.7KCut−$11.7K
Arkadios Wealth Advisors12.4K$25.2KNew
Wagner Wealth Management, LLC12.4K$25.2K−$11.4KCut−$12.3K
Focus Partners Wealth12.2K$24.7K−$11.2KCut−$11.2K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC12.1K$24.5K−$11.1KCut−$11.1K
Vanguard Global Advisers, LLC11.2K$22.7KHeld
Geneos Wealth Management Inc.10.8K$21.9K−$7.18KCut−$1.09K
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC10.6K$21.2K−$10KCut−$10.3K
Fidelity6.57K$13.3K−$6.05KCut−$30.4K
CWM, LLC1K$2.04K$2.03KAdded$2.03K
Optiver Holding B.V.412$836−$379Cut−$379
BNP PARIBAS FINANCIAL MARKETS236$479−$217Cut−$217
JPMORGAN CHASE & CO222$426−$229Cut−$229
NISA INVESTMENT ADVISORS, LLC129$262−$119Cut−$119
GSA CAPITAL PARTNERS LLP105K$213−$96Cut−$103
Silicon Valley Capital Partners57$116New
Advisory Services Network, LLC19$39New
SBI Securities Co., Ltd.7$14−$7Cut−$7
Caitong International Asset Management Co., Ltd4$8New
ROYAL BANK OF CANADA43$0$0Held

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.