Insider trading

Period: 120 months Stock: KRRO Plan: Not on a plan × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

131 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

131 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

131 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

131 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
131 decisions over 120 months Remove this filter
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
131 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

131 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
10 Aug 2026
Lynx1 Capital Management LP 10% owner · indirect
Bought
$19.28K 1,462 at 13.19
0.1%
6 Aug 2026
Lynx1 Capital Management LP 10% owner · indirect
Bought
$59.53K 5,222 at 11.40
0.3%
Largest buy in 3 yrs
4 Aug 2026
Aiyar Ram President and CEO
Sold at will
$62.92K 5,802 at 10.84
7.8%
Not planned
16 Jun 2026
Cerio Jeffrey General Counsel
Sold at will
$71.58K 6,609 at 10.83
15.8%
Not planned
16 Jun 2026
Vincent Loic A Chief Scientific Officer
Sold at will
$37.02K 3,418 at 10.83
15.7%
Not planned
16 Jun 2026
Dolan Oliver Senior Vice President, Finance
Sold at will
$36.64K 3,383 at 10.83
15.7%
Not planned
16 Jun 2026
Chappell Todd Chief Operating Officer
Sold at will
$34.31K 3,168 at 10.83
15.7%
Not planned
29 May 2026
Aiyar Ram President and CEO
Sold at will
$196.67K 15,152 at 12.98
16.8%
Not planned
31 Mar 2026
Lynx1 Capital Management LP 10% owner · indirect
Bought
$5.51K 520 at 10.60
0.0%
First buy on file
10 Mar 2026
Florence Anthony A. Jr. 10% owner · indirect
Bought
$2.30M 207,100 at 11.11
19.0%
Largest buy in 3 yrs
10 Mar 2026
Yang Rick 10% owner · indirect
Bought
$2.30M 207,100 at 11.11
19.0%
Largest buy in 3 yrs
10 Mar 2026
SANDELL SCOTT D 10% owner · indirect
Bought
$2.30M 207,100 at 11.11
19.0%
Largest buy in 3 yrs
10 Mar 2026
Bought
$2.30M 207,100 at 11.11
19.0%
Largest buy in 3 yrs
10 Mar 2026
BASKETT FOREST 10% owner · indirect
Bought
$2.30M 207,100 at 11.11
19.0%
Largest buy in 3 yrs
10 Mar 2026
Chang Carmen 10% owner · indirect
Bought
$2.30M 207,100 at 11.11
19.0%
Largest buy in 3 yrs
10 Mar 2026
Mathers Edward T 10% owner · indirect
Bought
$2.30M 207,100 at 11.11
19.0%
Largest buy in 3 yrs
10 Mar 2026
Makhzoumi Mohamad 10% owner · indirect
Bought
$2.30M 207,100 at 11.11
19.0%
Largest buy in 3 yrs
10 Mar 2026
Walker Paul Edward 10% owner · indirect
Bought
$2.30M 207,100 at 11.11
19.0%
Largest buy in 3 yrs
22 Apr 2024
Bought
$999.99K 17,857 at 56.00
1.7%
First buy on file
22 Apr 2024
Bought
$999.99K 17,857 at 56.00
10.1%
First buy on file
22 Apr 2024
Makhzoumi Mohamad 10% owner · indirect
Bought
$999.99K 17,857 at 56.00
1.7%
First buy on file
22 Apr 2024
Yang Rick 10% owner · indirect
Bought
$999.99K 17,857 at 56.00
1.7%
First buy on file
22 Apr 2024
Mathers Edward T 10% owner · indirect
Bought
$999.99K 17,857 at 56.00
1.7%
First buy on file
22 Apr 2024
Chang Carmen 10% owner · indirect
Bought
$999.99K 17,857 at 56.00
1.7%
First buy on file
22 Apr 2024
Walker Paul Edward 10% owner · indirect
Bought
$999.99K 17,857 at 56.00
1.7%
First buy on file
22 Apr 2024
Florence Anthony A. Jr. 10% owner · indirect
Bought
$999.99K 17,857 at 56.00
1.7%
First buy on file
22 Apr 2024
BASKETT FOREST 10% owner · indirect
Bought
$999.99K 17,857 at 56.00
1.7%
First buy on file
22 Apr 2024
SANDELL SCOTT D 10% owner · indirect
Bought
$999.99K 17,857 at 56.00
1.7%
First buy on file
22 Nov 2023
Sold at will 4×
$43.57K 1,156 at 37.69
5.0%
Not planned
10 Nov 2023
Sold at will 7×
$40.63K 968 at 41.97
4.0%
Not planned
6 Jul 2023
Lucchino David L. President and CEO
Sold at will
$942.82 2,773 at 0.34
0.6%
Not planned
6 Jul 2022
McCubbin Quentin Chief Manufacturing Officer
Sold, plan not stated
$9.98K 6,569 at 1.52
14.6%
6 Jul 2022
Arnold Wendy S Chief People Officer
Sold, plan not stated
$8.57K 5,638 at 1.52
21.0%
6 Jul 2022
Loose Christopher R. Chief Scientific Officer
Sold, plan not stated
$6.75K 4,415 at 1.53
8.1%
6 Jul 2022
LeBel Carl Chief Development Officer
Sold, plan not stated
$6.72K 4,421 at 1.52
14.4%
6 Jul 2022
Mitrano Richard J. VP Finance & Operations
Sold, plan not stated
$3.36K 2,184 at 1.54
6.6%
22 Feb 2022
McCubbin Quentin Chief Manufacturing Officer
Sold, plan not stated
$5.60K 1,584 at 3.53
6.5%
22 Feb 2022
PFREUNDSCHUH PETER P. Chief Financial Officer
Sold, plan not stated
$5.44K 1,542 at 3.53
14.7%
22 Feb 2022
Arnold Wendy S Chief People Officer
Sold, plan not stated
$4.68K 1,326 at 3.53
10.1%
22 Feb 2022
Loose Christopher R. Chief Scientific Officer
Sold, plan not stated
$3.77K 1,069 at 3.53
3.0%
22 Feb 2022
LeBel Carl Chief Development Officer
Sold, plan not stated
$3.77K 1,069 at 3.53
8.8%
18 Feb 2022
McCubbin Quentin Chief Manufacturing Officer
Sold, plan not stated
$5.46K 1,411 at 3.87
5.5%
18 Feb 2022
PFREUNDSCHUH PETER P. Chief Financial Officer
Sold, plan not stated
$5.44K 1,404 at 3.88
11.8%
18 Feb 2022
Arnold Wendy S Chief People Officer
Sold, plan not stated
$4.68K 1,209 at 3.87
8.4%
18 Feb 2022
Loose Christopher R. Chief Scientific Officer
Sold, plan not stated
$3.77K 974 at 3.87
2.6%
18 Feb 2022
LeBel Carl Chief Development Officer
Sold, plan not stated
$3.77K 974 at 3.87
7.4%
17 Feb 2022
McCubbin Quentin Chief Manufacturing Officer
Sold, plan not stated
$5.47K 1,303 at 4.20
4.8%
17 Feb 2022
PFREUNDSCHUH PETER P. Chief Financial Officer
Sold, plan not stated
$5.44K 1,296 at 4.20
9.8%
17 Feb 2022
Arnold Wendy S Chief People Officer
Sold, plan not stated
$4.69K 1,118 at 4.19
7.2%
17 Feb 2022
LeBel Carl Chief Development Officer
Sold, plan not stated
$3.77K 901 at 4.19
6.4%
Showing 1–50 of 131. Page 1 of 3 Older →