Insider trading

Period: 120 months Stock: KROS Share of holding: 50% or more × + Add filter Clear all
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When

Period

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

16 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.

16 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.

16 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.

16 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.
16 decisions over 120 months
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
16 decisions over 120 months Remove this filter
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.

16 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
15 Oct 2025
ADAR1 Capital Management, LLC 10% owner · indirect
Sold at will 3×
$95.66M 5,389,264 at 17.75
100%
Sold half or more
15 Oct 2025
Sold at will 4×
$84.98M 4,787,331 at 17.75
100%
Sold half or more
13 Aug 2024
GORDON CARL L Director · indirect
Sold at will 2×
$11.00M 250,000 at 44.01
67.7%
Sold half or more
13 Aug 2024
ORBIMED ADVISORS LLC Director · indirect
Sold at will 2×
$11.00M 250,000 at 44.01
67.7%
Sold half or more
4 Nov 2023
Regnante Keith Chief Financial Officer
Sold at will
$1.81M 40,000 at 45.29
100%
Sold half or more
9 Jun 2023
Regnante Keith Chief Financial Officer
Sold on a plan 3×
$908.37K 20,000 at 45.42
100%
Sold half or more
8 Jun 2023
Regnante Keith Chief Financial Officer
Sold on a plan 2×
$955.87K 20,000 at 47.79
100%
Sold half or more
6 Apr 2022
Rovaldi Christopher Chief Operating Officer
Sold, plan not stated
$112.32K 1,728 at 65.00
100%
Sold half or more
1 Apr 2022
Rovaldi Christopher Chief Operating Officer
Sold, plan not stated 5×
$49.68K 864 at 57.49
100%
Sold half or more
11 Jun 2021
Ordonez Claudia Chief Medical Officer
Sold, plan not stated 2×
$50.99K 1,000 at 50.99
100%
Sold half or more
11 May 2021
Ordonez Claudia Chief Medical Officer
Sold, plan not stated
$50.15K 1,000 at 50.15
100%
Sold half or more
12 Apr 2021
Ordonez Claudia Chief Medical Officer
Sold, plan not stated 3×
$59.93K 1,000 at 59.93
100%
Sold half or more
11 Mar 2021
Ordonez Claudia Chief Medical Officer
Sold, plan not stated 2×
$64.56K 1,000 at 64.56
100%
Sold half or more
11 Feb 2021
Ordonez Claudia Chief Medical Officer
Sold, plan not stated 5×
$64.84K 1,000 at 64.84
100%
Sold half or more
13 Apr 2020
ORBIMED ADVISORS LLC Director · indirect
Bought
$6.00M 375,200 at 16.00
50.4%
First buy on file
13 Apr 2020
GORDON CARL L Director · indirect
Bought
$6.00M 375,200 at 16.00
50.4%
First buy on file
Showing 1–16 of 16.