Insider trading

Period: 120 months Stock: XLO + 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.

24 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.

24 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.

24 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.

24 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.
24 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
24 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.

24 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
26 Mar 2026
Bought
$43.95K 5,000 at 8.79
100%
Largest buy in 3 yrs
2 Jan 2026
Frankenfield Christopher James Chief Financial Officer
Sold on a plan
$4.52K 7,030 at 0.64
22.1%
Planned (10b5-1)
2 Jan 2026
Brennan Kevin M. SVP, FINANCE AND ACCOUNTING
Sold on a plan
$1.17K 1,826 at 0.64
22.3%
Planned (10b5-1)
17 Jun 2025
Bought
$17.22K 25,000 at 0.69
55.6%
+56% of stake
16 Jun 2025
Bought
$30.87K 45,000 at 0.69
opened
First buy on file
16 Jun 2025
Russo Rene PRESIDENT AND CEO
Bought
$24.68K 36,289 at 0.68
14.8%
First buy on file
2 Jan 2025
Frankenfield Christopher James Chief Financial Officer
Sold on a plan
$6.84K 6,954 at 0.98
35.9%
Planned (10b5-1)
2 Jan 2025
Brennan Kevin M. SVP, FINANCE AND ACCOUNTING
Sold on a plan
$1.77K 1,803 at 0.98
36.1%
Planned (10b5-1)
18 Dec 2024
Bought
$1.83M 1,759,978 at 1.04
24.0%
Largest buy in 3 yrs
2 Apr 2024
Bought
$368.79K 485,250 at 0.76
7.1%
First buy on file
8 Feb 2024
Sold at will
$469.12 733 at 0.64
0.0%
Not planned
8 Feb 2024
Atlas Venture Fund XI, L.P. 10% owner · indirect
Sold at will
$170.88 267 at 0.64
0.0%
Not planned
12 Jan 2024
Sold at will
$1.28K 1,540 at 0.83
0.1%
Not planned
12 Jan 2024
Atlas Venture Fund XI, L.P. 10% owner · indirect
Sold at will
$464.80 560 at 0.83
0.1%
Not planned
11 Jan 2024
Sold at will
$1.36K 1,566 at 0.87
0.1%
Not planned
11 Jan 2024
Atlas Venture Fund XI, L.P. 10% owner · indirect
Sold at will
$495.03 569 at 0.87
0.1%
Not planned
10 Dec 2021
Bought 2×
$241.20K 25,000 at 9.65
0.9%
Largest buy in 3 yrs
9 Dec 2021
Bought
$39.49K 4,011 at 9.84
0.1%
8 Dec 2021
Bought
$129.47K 13,458 at 9.62
0.5%
First buy on file
26 Oct 2021
Flynn James E 10% owner · indirect
Bought 2×
$12.40M 775,000 at 16.00
210%
First buy on file
26 Oct 2021
Rock Springs Capital Management LP 10% owner · indirect
Bought
$8.00M 500,000 at 16.00
66.1%
First buy on file
26 Oct 2021
BAY CITY CAPITAL LLC 10% owner · indirect
Bought
$5.00M 312,500 at 16.00
38.3%
First buy on file
26 Oct 2021
RiverVest Venture Fund IV, L.P. 10% owner · indirect
Bought
$4.00M 250,000 at 16.00
21.0%
First buy on file
26 Oct 2021
Atlas Venture Fund XI, L.P. 10% owner · indirect
Bought
$3.00M 187,500 at 16.00
34.2%
First buy on file
Showing 1–24 of 24.