13F

Stock

Korro Bio, Inc.

KRRO · held by 98 managers

Reported value

$144M

Holders

98

+28 new · −15 exited

Holders’ est. mark

$21M

Price effect on 66 books still in the name

Largest holder

$17.4M

Lynx1 Capital Management LP

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Lynx1 Capital Management LP1.54M$17.4M$2.24MAdded$12M
NEA Management Company, LLC1.3M$14.7M$3.61MAdded$5.95M
Atlas Venture Life Science Advisors, LLC1.14M$12.9M$3.76MAdded$3.76M
Balyasny Asset Management L.P.1.04M$11.8MNew
VR ADVISER, LLC1.01M$11.4MNew
Affinity Asset Advisors, LLC706.9K$8MNew
Nantahala Capital Management, LLC660K$7.47M$1.99MAdded$2.67M
ADAR1 Capital Management, LLC540.1K$6.11MNew
BlackRock, Inc.460K$5.21M$1.51MAdded$1.54M
Driehaus Capital Management LLC450K$5.09MNew
TCG Crossover Management, LLC416.3K$4.71M$1.38MAdded$1.38M
Siren, L.L.C.347.7K$3.94M$1.15MAdded$1.15M
VANGUARD CAPITAL MANAGEMENT LLC310.9K$3.52MHeld
72 Investment Holdings, LLC276.8K$3.13M$916.3KAdded$916.3K
Icahn Capital267.8K$3.03M$134.5KAdded$2.71M
ADAGE CAPITAL PARTNERS GP, L.L.C.228.4K$2.59MNew
GEODE CAPITAL MANAGEMENT, LLC173.6K$1.97M$538.8KAdded$662K
TWO SIGMA INVESTMENTS, LP165.5K$1.87M$261.4KAdded$1.24M
VANGUARD PORTFOLIO MANAGEMENT LLC148.6K$1.68MHeld
State Street140.3K$1.59M$464.5KAdded$417.4K
Renaissance Technologies136.2K$1.54M$247.9KAdded$942.1K
JANE STREET GROUP, LLC115.7K$1.31M$383KCut−$1M
Kalehua Capital Management LLC109.4K$1.24MNew
MILLENNIUM MANAGEMENT LLC63.6K$720K$210.5KCut−$570.3K
EMERALD MUTUAL FUND ADVISERS TRUST62.9K$711.5K$208.1KAdded$186.5K
F/m Investments LLC62.9K$711.5K$208.1KAdded$186.5K
JPMORGAN CHASE & CO68.5K$704.2K$6.44KAdded$681.4K
XTX Topco Ltd60.5K$684.5K$188.9KAdded$227.4K
NORTHERN TRUST CORP57.7K$653.2K$184.2KAdded$207.5K
Trexquant Investment LP56.2K$636.3KNew
GOLDMAN SACHS GROUP INC50.5K$572.1K$167.3KAdded$156K
RAYMOND JAMES FINANCIAL INC42.8K$484.9K$76.2KAdded$300.4K
BOOTHBAY FUND MANAGEMENT, LLC42K$475.4KNew
VANGUARD FIDUCIARY TRUST CO41.5K$470.2KHeld
MORGAN STANLEY41.1K$465.5K$136.1KCut−$93K
Fidelity38.9K$440.3K$125.3KAdded$137.1K
Quantinno Capital Management LP36K$407.3K$91.3KAdded$186.2K
MARSHALL WACE, LLP34.3K$388.8K$65.4KAdded$230.4K
Citadel30.9K$349.9K$102.3KCut−$117.3K
AIHC Capital Management Ltd30.3K$342.6K$100.2KAdded$100.2K
Mariner, LLC25.8K$292.1KNew
Engineers Gate Manager LP23.7K$268.3K$78.5KAdded$53K
Bank of New York Mellon Corp21.7K$246K$62.4KAdded$95K
UBS Group AG21.7K$245.4K$66.2KAdded$85.2K
Quadrature Capital Ltd20.4K$230.4K$67.4KAdded$13.6K
Susquehanna Portfolio Strategies, LLC19.1K$216.5KNew
GUGGENHEIM CAPITAL LLC14.1K$159.6K$34.6KAdded$76K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC13.4K$151.6K$44.3KAdded$20.8K
IEQ CAPITAL, LLC12.8K$144.6KNew
DEUTSCHE BANK AG\10.5K$119.4K$34.9KAdded$17.2K
RHUMBLINE ADVISERS9.85K$111.5K$32.6KAdded$29.4K
CWM, LLC9.77K$110.6K$3.26KAdded$110.6K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.3.21K$36.4K$10.4KAdded$11.2K
NEW YORK STATE COMMON RETIREMENT FUND3K$34K$9.93KAdded$9.93K
WELLS FARGO & COMPANY/MN2.59K$29.3K$8.57KCut−$30.9K
BNP PARIBAS FINANCIAL MARKETS2.35K$26.6K$4.92KAdded$14.7K
Russell Investments Group, Ltd.2.12K$23.9K$6.39KAdded$8.48K
Vanguard Global Advisers, LLC1.93K$21.8KHeld
North Star Investment Management Corp.1.8K$20.4K$5.96KAdded$5.96K
Tower Research Capital LLC (TRC)1.64K$18.6K$4.6KAdded$7.47K
Police & Firemen's Retirement System of New Jersey1.37K$15.5K$4.54KAdded$4.54K
Essential Partners LLC1.32K$15KNew
TD Waterhouse Canada Inc.808$10.1K$3.63KAdded$3.73K
PNC Financial Services Group, Inc.830$9.4K$2.45KAdded$3.47K
GAMMA Investing LLC737$8.34K$338Added$7.53K
Versant Capital Management, Inc691$7.82KNew
MAI Capital Management606$6.86K$16Added$6.82K
Ameritas Investment Partners, Inc.598$6.77K$1.98KAdded$1.98K
Legal & General Group Plc526$5.95K$1.74KAdded$1.74K
DUNCKER STREETT & CO INC437$4.95K$1.45KAdded$1.45K
EverSource Wealth Advisors, LLC379$4.29KNew
CITIGROUP INC308$3.49K$1.02KCut−$1.38K
Allworth Financial LP291$3.29K$2Added$3.29K
Advisory Services Network, LLC245$2.77KNew
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC225$2.55K$301Added$1.82K
Sterling Capital Management LLC220$2.49K$728Cut−$1.18K
OSAIC HOLDINGS, INC.135$1.53K$447Cut−$9.82K
True Wealth Design, LLC99$1.12KNew
ROYAL BANK OF CANADA104$1K$71Cut−$1K
Arax Advisory Partners86$974New
ROTHSCHILD INVESTMENT LLC72$815$20Added$767
Root Financial Partners, LLC63$713New
Keating Financial Advisory Services, Inc.63$713$208Added$208
Farther Finance Advisors, LLC54$683New
Optiver Holding B.V.60$679$198Cut−$250
IFP Advisors, Inc45$509$132Added$189
Wealth Preservation Advisors, LLC44$498New
Bare Financial Services, Inc44$498New
ACADIAN ASSET MANAGEMENT LLC41.8K$471$111Added$201
NISA INVESTMENT ADVISORS, LLC40$453New
Fortitude Family Office, LLC39$441New
SJS Investment Consulting Inc.22$250New
ALGERT GLOBAL LLC19.2K$217$63Held
Sunbelt Securities, Inc.17$192$3Added$184
FIFTH THIRD BANCORP11$125New
HRT FINANCIAL LP10.8K$122New
JPL Wealth Management, LLC2$23New
SBI Securities Co., Ltd.1$11$3Added$3

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.