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Korro Bio, Inc.

KRRO Net buying
CIK 0001703647 #3970 in the set updated 17 Sep 2026
Bought (12 mo)
$20.79M
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$5.70M
$5.26M on a plan · $0.00 straight out of an exercise
Sold at will
$439.13K
6 of 33 sales
Net
+$15.09M
+$20.35M against sales at will

By person

18 insiders · 45 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
FORMELA JEAN FRANCOIS
Director
—
$5.16M (24) scheduled
−$5.16M
273,703
1.86%
$3.86M
−57.1%
BASKETT FOREST
10% owner
$2.30M (1)
—
+$2.30M
1,297,893
8.81%
$18.33M
+19.0%
Chang Carmen
10% owner
$2.30M (1)
—
+$2.30M
1,297,893
8.81%
$18.33M
+19.0%
Florence Anthony A. Jr.
10% owner
$2.30M (1)
—
+$2.30M
1,297,893
8.81%
$18.33M
+19.0%
Makhzoumi Mohamad
10% owner
$2.30M (1)
—
+$2.30M
1,297,893
8.81%
$18.33M
+19.0%
Mathers Edward T
10% owner
$2.30M (1)
—
+$2.30M
1,297,893
8.81%
$18.33M
+19.0%
New Enterprise Associates 17, L.P. entity
10% owner
$2.30M (1)
—
+$2.30M
1,297,893
8.81%
$18.33M
+19.0%
SANDELL SCOTT D
10% owner
$2.30M (1)
—
+$2.30M
1,297,893
8.81%
$18.33M
+19.0%
Walker Paul Edward
10% owner
$2.30M (1)
—
+$2.30M
1,297,893
8.81%
$18.33M
+19.0%
Yang Rick
10% owner
$2.30M (1)
—
+$2.30M
1,297,893
8.81%
$18.33M
+19.0%
Aiyar Ram
President and CEO
—
$259.59K (2)
−$259.59K
69,046
0.4689%
$974.93K
—
Dolan Oliver
Senior Vice President, Finance
—
$136.07K (4) scheduled
−$136.07K
16,241
0.1103%
$229.32K
—
Lynx1 Capital Management LP entity
10% owner
$84.32K (3)
—
+$84.32K
1,544,980
10.49%
$21.82M
+0.5%
Cerio Jeffrey
General Counsel
—
$71.58K (1)
−$71.58K
41,793
0.2838%
$590.12K
—
Vincent Loic A
Chief Scientific Officer
—
$37.02K (1)
−$37.02K
25,797
0.1752%
$364.25K
—
Chappell Todd
Chief Operating Officer
—
$34.31K (1)
−$34.31K
24,464
0.1661%
$345.43K
—
Behbahani Ali
Director
—
—
—
1,297,893
8.81%
$18.33M
+19.0%
Agarwal Vineet
Chief Financial Officer
—
—
—
0
0.0000%
$0.00
—

Individual transactions

45
Insider
Date
Role
Action
Shares
Price
Amount
FORMELA JEAN FRANCOIS
14 Sep 2026
Director
Sold on a plan indirect
6,602
$14.12
$93.22K
FORMELA JEAN FRANCOIS
14 Sep 2026
Director
Sold on a plan indirect
31,888
$14.12
$450.26K
FORMELA JEAN FRANCOIS
11 Sep 2026
Director
Sold on a plan indirect
1,750
$13.99
$24.48K
FORMELA JEAN FRANCOIS
11 Sep 2026
Director
Sold on a plan indirect
8,450
$13.99
$118.22K
Dolan Oliver
11 Sep 2026
Senior Vice President, Finance
Sold on a plan
5
$13.72
$68.58
Dolan Oliver
9 Sep 2026
Senior Vice President, Finance
Sold on a plan
6
$13.60
$81.62
Dolan Oliver
8 Sep 2026
Senior Vice President, Finance
Sold on a plan
7,347
$13.51
$99.29K
FORMELA JEAN FRANCOIS
26 Aug 2026
Director
Sold on a plan indirect
51
$13.96
$711.96
FORMELA JEAN FRANCOIS
26 Aug 2026
Director
Sold on a plan indirect
249
$13.96
$3.48K
FORMELA JEAN FRANCOIS
19 Aug 2026
Director
Sold on a plan indirect
4,884
$14.00
$68.38K
FORMELA JEAN FRANCOIS
19 Aug 2026
Director
Sold on a plan indirect
23,584
$14.00
$330.18K
FORMELA JEAN FRANCOIS
11 Aug 2026
Director
Sold on a plan indirect
368
$13.96
$5.14K
FORMELA JEAN FRANCOIS
11 Aug 2026
Director
Sold on a plan indirect
1,775
$13.96
$24.78K
Lynx1 Capital Management LP
10 Aug 2026
10% owner
Buy indirect
1,462
$13.19
$19.28K
Lynx1 Capital Management LP
6 Aug 2026
10% owner
Buy indirect
5,222
$11.40
$59.53K
Aiyar Ram
4 Aug 2026
President and CEO
Sell
5,802
$10.84
$62.92K
FORMELA JEAN FRANCOIS
6 Jul 2026
Director
Sold on a plan indirect
8,506
$13.96
$118.74K
FORMELA JEAN FRANCOIS
6 Jul 2026
Director
Sold on a plan indirect
817
$13.96
$11.41K
FORMELA JEAN FRANCOIS
2 Jul 2026
Director
Sold on a plan indirect
14,745
$14.03
$206.87K
FORMELA JEAN FRANCOIS
2 Jul 2026
Director
Sold on a plan indirect
85,955
$14.03
$1.21M
FORMELA JEAN FRANCOIS
24 Jun 2026
Director
Sold on a plan indirect
114
$14.98
$1.71K
FORMELA JEAN FRANCOIS
24 Jun 2026
Director
Sold on a plan indirect
6,979
$14.60
$101.89K
FORMELA JEAN FRANCOIS
24 Jun 2026
Director
Sold on a plan indirect
666
$14.98
$9.98K
FORMELA JEAN FRANCOIS
24 Jun 2026
Director
Sold on a plan indirect
40,679
$14.60
$593.91K
FORMELA JEAN FRANCOIS
23 Jun 2026
Director
Sold on a plan indirect
17,426
$14.25
$248.32K
FORMELA JEAN FRANCOIS
23 Jun 2026
Director
Sold on a plan indirect
101,579
$14.25
$1.45M
FORMELA JEAN FRANCOIS
22 Jun 2026
Director
Sold on a plan indirect
580
$13.95
$8.09K
FORMELA JEAN FRANCOIS
22 Jun 2026
Director
Sold on a plan indirect
3,382
$13.95
$47.18K
Dolan Oliver
16 Jun 2026
Senior Vice President, Finance
Sell
3,383
$10.83
$36.64K
Cerio Jeffrey
16 Jun 2026
General Counsel
Sell
6,609
$10.83
$71.58K
Vincent Loic A
16 Jun 2026
Chief Scientific Officer
Sell
3,418
$10.83
$37.02K
Chappell Todd
16 Jun 2026
Chief Operating Officer
Sell
3,168
$10.83
$34.31K
Aiyar Ram
29 May 2026
President and CEO
Sell
15,152
$12.98
$196.67K
FORMELA JEAN FRANCOIS
28 May 2026
Director
Sold on a plan indirect
419
$13.95
$5.85K
FORMELA JEAN FRANCOIS
28 May 2026
Director
Sold on a plan indirect
2,441
$13.95
$34.05K
Lynx1 Capital Management LP
31 Mar 2026
10% owner
Buy indirect
520
$10.60
$5.51K
Florence Anthony A. Jr.
10 Mar 2026
10% owner
Buy indirect
207,100
$11.11
$2.30M
Walker Paul Edward
10 Mar 2026
10% owner
Buy indirect
207,100
$11.11
$2.30M
Makhzoumi Mohamad
10 Mar 2026
10% owner
Buy indirect
207,100
$11.11
$2.30M
Mathers Edward T
10 Mar 2026
10% owner
Buy indirect
207,100
$11.11
$2.30M
BASKETT FOREST
10 Mar 2026
10% owner
Buy indirect
207,100
$11.11
$2.30M
Chang Carmen
10 Mar 2026
10% owner
Buy indirect
207,100
$11.11
$2.30M
New Enterprise Associates 17, L.P.
10 Mar 2026
10% owner
Buy
207,100
$11.11
$2.30M
SANDELL SCOTT D
10 Mar 2026
10% owner
Buy indirect
207,100
$11.11
$2.30M
Yang Rick
10 Mar 2026
10% owner
Buy indirect
207,100
$11.11
$2.30M

What was left out

Form 4 filings counted 47
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 3
Sales on a Rule 10b5-1 plan 27
Sales straight out of an exercise 0
Sales at will 6
Transactions with no price 0
Shares from compensation/vesting 429,331
History held since 2 Oct 2019