Insider trading

Period: 120 months Stock: GNTX Type of trade: Sold × + 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.

136 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.

136 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.

136 decisions over 120 months Remove this filter
The trade

Minimum amount

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

136 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.
136 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
136 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.

136 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
15 May 2026
Sold at will
$136.45K 5,939 at 22.98
100%
Sold half or more
15 May 2026
WALKER BRIAN C Director
Sold at will
$136.45K 5,939 at 22.98
19.7%
Not planned
5 May 2026
BROWN LESLIE L Director
Sold at will
$246.34K 10,782 at 22.85
22.9%
Not planned
30 Apr 2026
Schaum Richard O Director
Sold at will
$112.25K 4,815 at 23.31
5.6%
Not planned
17 Feb 2026
Downing Steven R President and CEO
Sold at will
$866.10K 35,000 at 24.75
14.2%
Not planned
17 Feb 2026
Chiodo Matthew Vice President of Sales
Sold at will 2×
$496.17K 19,827 at 25.03
36.1%
Not planned
17 Feb 2026
Nash Kevin C Chief Financial Officer
Sold at will 2×
$296.85K 11,885 at 24.98
16.7%
Not planned
17 Feb 2026
Boehm Neil Chief Technology Officer
Sold at will 2×
$279.18K 11,248 at 24.82
16.0%
Not planned
17 Feb 2026
Ryan Scott P General Counsel
Sold at will 2×
$223.17K 9,024 at 24.73
16.9%
Not planned
16 May 2025
Sold at will
$86.08K 3,764 at 22.87
38.8%
Not planned
20 May 2024
GOODE GARY F Director
Sold at will
$162.50K 4,716 at 34.46
16.2%
Not planned
20 May 2024
Sold at will
$162.50K 4,716 at 34.46
55.6%
Sold half or more
20 Feb 2024
Nash Kevin C Chief Financial Officer
Sold at will
$446.09K 13,500 at 33.04
23.3%
Not planned
20 Feb 2024
Ryan Scott P General Counsel
Sold at will
$437.45K 12,500 at 35.00
30.2%
Not planned
9 Feb 2024
GOODE GARY F Director
Sold at will
$245.14K 7,000 at 35.02
19.3%
Not planned
2 Feb 2024
GOODE GARY F Director
Sold at will
$238.79K 7,000 at 34.11
19.3%
Not planned
1 Feb 2024
Schaum Richard O Director
Sold at will
$204.33K 6,022 at 33.93
8.8%
Not planned
31 Jul 2023
Sold at will
$148.04K 4,416 at 33.52
48.4%
Not planned
31 Jul 2023
Sold at will
$147.09K 4,430 at 33.20
17.1%
Not planned
19 May 2023
Hollars James A Director
Sold at will
$124.84K 4,416 at 28.27
10.9%
Not planned
19 May 2023
GOODE GARY F Director
Sold at will
$124.84K 4,416 at 28.27
13.1%
Not planned
1 May 2023
Schaum Richard O Director
Sold at will
$151.26K 5,424 at 27.89
9.8%
Not planned
6 Mar 2023
Boehm Neil Chief Technology Officer
Sold, plan not stated
$35.29K 1,242 at 28.41
3.3%
21 Feb 2023
Ryan Scott P General Counsel
Sold, plan not stated 2×
$279.95K 9,895 at 28.29
32.4%
2 Feb 2023
Downing Steven R President and CEO
Sold, plan not stated
$535.59K 17,730 at 30.21
13.0%
1 Feb 2023
Nash Kevin C Chief Financial Officer
Sold, plan not stated
$199.37K 6,776 at 29.42
23.1%
4 Jan 2023
Ryan Scott P General Counsel
Sold, plan not stated
$128.24K 4,580 at 28.00
20.0%
31 Oct 2022
Wallace James H Director
Sold, plan not stated
$364.55K 14,000 at 26.04
48.8%
20 May 2022
GOODE GARY F Director
Sold, plan not stated
$85.84K 2,845 at 30.17
9.3%
31 Mar 2022
Chiodo Matthew Vice President of Sales
Sold, plan not stated
$166.67K 5,700 at 29.24
20.9%
31 Mar 2022
Boehm Neil Chief Technology Officer
Sold, plan not stated
$131.58K 4,500 at 29.24
14.7%
22 Feb 2022
Downing Steven R President and CEO
Sold, plan not stated 2×
$1.79M 58,937 at 30.36
35.4%
22 Feb 2022
Boehm Neil Chief Technology Officer
Sold, plan not stated 2×
$485.59K 15,993 at 30.36
34.4%
22 Feb 2022
Nash Kevin C Chief Financial Officer
Sold, plan not stated 2×
$477.24K 15,718 at 30.36
42.0%
22 Feb 2022
Chiodo Matthew Vice President of Sales
Sold, plan not stated 2×
$453.34K 14,931 at 30.36
36.1%
22 Feb 2022
Ryan Scott P General Counsel
Sold, plan not stated 2×
$417.63K 13,755 at 30.36
44.1%
16 Feb 2022
Downing Steven R President and CEO
Sold, plan not stated
$236.79K 7,560 at 31.32
7.0%
16 Feb 2022
Nash Kevin C Chief Financial Officer
Sold, plan not stated
$113.70K 3,630 at 31.32
16.0%
16 Feb 2022
Ryan Scott P General Counsel
Sold, plan not stated
$57.00K 1,820 at 31.32
9.8%
15 Feb 2022
Downing Steven R President and CEO
Sold, plan not stated
$976.44K 31,000 at 31.50
22.2%
15 Feb 2022
Boehm Neil Chief Technology Officer
Sold, plan not stated
$251.99K 8,000 at 31.50
21.5%
15 Feb 2022
Chiodo Matthew Vice President of Sales
Sold, plan not stated
$251.99K 8,000 at 31.50
23.8%
15 Feb 2022
Nash Kevin C Chief Financial Officer
Sold, plan not stated
$251.99K 8,000 at 31.50
26.1%
15 Feb 2022
Ryan Scott P General Counsel
Sold, plan not stated
$251.99K 8,000 at 31.50
30.0%
3 Nov 2021
Wallace James H Director
Sold, plan not stated
$253.64K 7,000 at 36.23
19.6%
1 Nov 2021
GOODE GARY F Director
Sold, plan not stated
$221.21K 6,200 at 35.68
18.5%
29 Oct 2021
Wallace James H Director
Sold, plan not stated
$246.30K 7,000 at 35.19
19.6%
28 Oct 2021
GOODE GARY F Director
Sold, plan not stated
$278.57K 7,800 at 35.71
22.2%
25 Oct 2021
Ryan Scott P General Counsel
Sold, plan not stated
$316.11K 9,224 at 34.27
25.8%
27 Jul 2021
MULDER JOHN A Director
Sold, plan not stated
$228.55K 7,000 at 32.65
16.9%
Showing 1–50 of 136. Page 1 of 3 Older →