Korro Bio, Inc.

KRRO

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001703647

SEC filings (opens in a new tab)

In the last 90 days, Korro Bio, Inc. insiders filed 1 open-market purchase and 8 sales; 106 institutions reported holding it in 13F filings for Q2 2026, worth $190.1M in total; no superinvestor holds it.

Q2 2021 vs. Q1 2021

How the institutions holding Korro Bio, Inc. changed between Q1 2021 and Q2 2021.

All holders in Q2 2021 All holders in Q1 2021

13F holders of KRRO: Q1 2021 compared with Q2 2021
Measure	Q1 2021	Of which not filed for Q2 2021	Q2 2021	Change
Holders	115	1	91	−23
Shares	19.7M	200.0K	19.6M	+13.8K (+0.1%)
Value	$186.6M	$1.90M	$193.9M	+$9.15M (+5.0%)

1 institution that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (12)

Institutions that held Korro Bio, Inc. at the end of Q2 2021 but not at the end of Q1 2021.

Institutions new to KRRO in Q2 2021
Institution	Shares	Value	% of portfolio
Amundi	776,088	$7.73M	0.01%
Sphera Funds Management Ltd.	275,160	$2.74M	0.26%
Two Sigma Advisers, LP	164,100	$1.63M	0.00%
Occudo Quantitative Strategies LP	29,047	$289.0K	0.04%
Winton Group Ltd	14,261	$142.0K	0.01%
Invesco Ltd.	12,202	$121.0K	0.00%
Centaurus Financial, Inc.	10,030	$100.0K	0.01%
Quantbot Technologies LP	3,200	$31.0K	0.00%
US Bancorp	2,105	$21.0K	0.00%
Parisi Gray Wealth Management	702	$7.00K	0.00%
Hartford Financial Management Inc.	500	$5.00K	0.00%
Global Financial Private Client, LLC	40	$370	0.00%

Sold out (35)

Institutions that held Korro Bio, Inc. at the end of Q1 2021 and filed for Q2 2021 without it.

Institutions that sold out of KRRO in Q2 2021
Institution	Shares, Q1 2021	Value, Q1 2021
Compagnie Lombard Odier SCmA	263,249	$2.50M
Susquehanna International Group, LLP	129,746	$1.23M
Jane Street Group, LLC	125,114	$1.19M
Pura Vida Investments, LLC	100,000	$950.0K
Handelsbanken Fonder AB	80,000	$760.0K
Rafferty Asset Management, LLC	61,934	$588.0K
LMR Partners LLP	59,900	$569.0K
Bank of Montreal	52,669	$566.0K
California Public Employees Retirement System	51,500	$489.0K
Kennedy Capital Management, Inc.	47,953	$456.0K
Simplex Trading, LLC	44,197	$419.0K
State of Wisconsin Investment Board	33,800	$321.0K
Cresset Asset Management, LLC	30,000	$285.0K
EMC Capital Management	29,992	$285.0K
Ameriprise Financial Inc	20,316	$193.0K
Schonfeld Strategic Advisors LLC	20,001	$190.0K
FMR LLC	18,356	$174.0K
STRS Ohio	17,800	$169.0K
MetLife Investment Management	10,286	$97.7K
Cerity Partners LLC	10,000	$95.0K
DLD Asset Management, LP	10,000	$95.0K
DekaBank Deutsche Girozentrale	10,000	$85.0K
Metropolitan Life Insurance Co	5,551	$52.7K
Group One Trading, L.P.	3,769	$36.0K
Maven Securities LTD	3,500	$33.0K
Bank Julius Baer & Co. Ltd, Zurich	3,158	$30.0K
Meeder Asset Management Inc	2,861	$27.0K
Pacer Advisors, Inc.	1,446	$14.0K
Benjamin F. Edwards & Company, Inc.	867	$8.00K
The PNC Financial Services Group, Inc.	200	$2.00K
Pacifica Partners Inc.	210	$2.00K
Geneos Wealth Management Inc.	100	$1.00K
Panagora Asset Management Inc	33	$0
TCI Wealth Advisors, Inc.	50	$0
State of Wyoming	34	$0

Not filed for Q2 2021 yet (1)

Institutions that held Korro Bio, Inc. at the end of Q1 2021 and haven't filed a 13F for Q2 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding KRRO in Q1 2021 that haven't filed for Q2 2021
Institution	Shares, Q1 2021	Value, Q1 2021
Amundi Asset Management US, Inc.	200,024	$1.90M