Insider trading

Period: 120 months Stock: GTLB + 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.

201 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.

201 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.

201 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.

201 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.
201 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
201 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.

201 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
19 Mar 2025
BOSTROM SUSAN L Director
Sold at will
$2.08M 40,000 at 51.88
21.6%
Not planned
17 Mar 2025
Sijbrandij Sytse Executive Chair of the Board · indirect
Sold on a plan 2×
$2.91M 56,000 at 51.95
100%
Sold half or more
17 Mar 2025
BLASING KAREN Director
Sold on a plan
$337.42K 6,500 at 51.91
5.3%
Planned (10b5-1)
18 Feb 2025
Sijbrandij Sytse Executive Chair of the Board · indirect
Sold on a plan 4×
$5.93M 84,000 at 70.61
100%
Sold half or more
18 Feb 2025
BLASING KAREN Director
Sold on a plan 3×
$458.74K 6,500 at 70.58
5.1%
Planned (10b5-1)
3 Feb 2025
ROBINS BRIAN G Chief Financial Officer
Sold on a plan 2×
$708.25K 10,000 at 70.83
3.6%
Planned (10b5-1)
28 Jan 2025
Schulman Robin Chief Legal Officer & Corp Sec
Sold on a plan
$647.57K 9,251 at 70.00
7.1%
Planned (10b5-1)
17 Jan 2025
Schulman Robin Chief Legal Officer & Corp Sec
Sold on a plan
$601.32K 9,251 at 65.00
7.1%
Planned (10b5-1)
15 Jan 2025
Sijbrandij Sytse Executive Chair of the Board · indirect
Sold on a plan 2×
$5.29M 84,000 at 62.99
100%
Sold half or more
15 Jan 2025
BLASING KAREN Director
Sold on a plan 2×
$410.76K 6,500 at 63.19
4.8%
Planned (10b5-1)
3 Jan 2025
Schulman Robin Chief Legal Officer & Corp Sec
Sold on a plan
$555.06K 9,251 at 60.00
7.1%
Planned (10b5-1)
2 Jan 2025
ROBINS BRIAN G Chief Financial Officer
Sold on a plan 2×
$562.42K 10,000 at 56.24
3.6%
Planned (10b5-1)
2 Jan 2025
Schulman Robin Chief Legal Officer & Corp Sec
Sold on a plan
$417.66K 7,330 at 56.98
5.7%
Planned (10b5-1)
31 Dec 2024
BOSTROM SUSAN L Director
Sold at will
$1.13M 20,000 at 56.26
9.8%
Not planned
27 Dec 2024
Jacobson Matthew Director · indirect
Sold at will 2×
$5.92K 100 at 59.18
0.2%
Not planned
26 Dec 2024
Jacobson Matthew Director · indirect
Sold at will 2×
$32.71M 547,679 at 59.72
90.4%
Sold half or more
24 Dec 2024
BOSTROM SUSAN L Director
Sold at will
$1.20M 20,000 at 60.19
8.9%
Not planned
20 Dec 2024
Schulman Robin Chief Legal Officer & Corp Sec
Sold on a plan
$167.72K 2,996 at 55.98
2.3%
Planned (10b5-1)
17 Dec 2024
Sijbrandij Sytse Director · indirect
Sold on a plan
$1.69M 28,000 at 60.21
100%
Sold half or more
16 Dec 2024
Sijbrandij Sytse Director · indirect
Sold on a plan 2×
$3.30M 56,000 at 58.91
100%
Sold half or more
16 Dec 2024
BLASING KAREN Director
Sold on a plan
$191.72K 3,250 at 58.99
2.4%
Planned (10b5-1)
9 Dec 2024
ROBINS BRIAN G Chief Financial Officer
Sold on a plan 3×
$675.90K 10,000 at 67.59
4.0%
Planned (10b5-1)
19 Nov 2024
Sijbrandij Sytse Chief Executive Officer · indirect
Sold on a plan
$11.82M 195,224 at 60.53
100%
Sold half or more
18 Nov 2024
Sijbrandij Sytse Chief Executive Officer · indirect
Sold on a plan 2×
$5.06M 84,776 at 59.64
100%
Sold half or more
15 Nov 2024
BLASING KAREN Director
Sold on a plan 2×
$193.08K 3,250 at 59.41
2.3%
Planned (10b5-1)
1 Nov 2024
ROBINS BRIAN G Chief Financial Officer
Sold on a plan 2×
$945.67K 16,666 at 56.74
6.4%
Planned (10b5-1)
15 Oct 2024
Sijbrandij Sytse Chief Executive Officer · indirect
Sold on a plan 2×
$3.06M 56,000 at 54.68
100%
Sold half or more
15 Oct 2024
BLASING KAREN Director
Sold on a plan
$177.84K 3,250 at 54.72
2.2%
Planned (10b5-1)
10 Oct 2024
Schulman Robin Chief Legal Officer & Corp Sec
Sold on a plan
$164.45K 2,990 at 55.00
2.2%
Planned (10b5-1)
1 Oct 2024
ROBINS BRIAN G Chief Financial Officer
Sold on a plan 2×
$830.41K 16,666 at 49.83
6.4%
Planned (10b5-1)
19 Sep 2024
Mannix Erin Chief Accounting Officer
Sold on a plan
$75.66K 1,433 at 52.80
1.9%
Planned (10b5-1)
16 Sep 2024
Sijbrandij Sytse Chief Executive Officer · indirect
Sold on a plan 2×
$2.99M 56,000 at 53.36
100%
Sold half or more
16 Sep 2024
BLASING KAREN Director
Sold on a plan 2×
$173.40K 3,250 at 53.35
2.2%
Planned (10b5-1)
9 Sep 2024
ROBINS BRIAN G Chief Financial Officer
Sold on a plan 2×
$894.58K 16,668 at 53.67
6.2%
Planned (10b5-1)
16 Aug 2024
BLASING KAREN Director
Sold on a plan
$146.25K 3,250 at 45.00
2.2%
Planned (10b5-1)
14 Aug 2024
Sijbrandij Sytse Chief Executive Officer · indirect
Sold on a plan 2×
$2.39M 56,000 at 42.74
100%
Sold half or more
1 Aug 2024
ROBINS BRIAN G Chief Financial Officer
Sold on a plan 4×
$1.15M 23,332 at 49.24
8.3%
Planned (10b5-1)
17 Jul 2024
BLASING KAREN Director
Sold on a plan
$249.19K 4,430 at 56.25
2.9%
Planned (10b5-1)
17 Jul 2024
Schulman Robin Chief Legal Officer & Corp Sec
Sold on a plan
$135.11K 2,402 at 56.25
1.7%
Planned (10b5-1)
15 Jul 2024
Sijbrandij Sytse Chief Executive Officer · indirect
Sold on a plan 3×
$2.74M 56,000 at 48.99
100%
Sold half or more
15 Jul 2024
BLASING KAREN Director
Sold on a plan
$174.13K 3,500 at 49.75
2.2%
Planned (10b5-1)
3 Jul 2024
Saintil Merline Director
Sold on a plan
$60.88K 1,182 at 51.51
10.7%
Planned (10b5-1)
1 Jul 2024
ROBINS BRIAN G Chief Financial Officer
Sold on a plan 3×
$1.17M 23,334 at 50.24
7.6%
Planned (10b5-1)
1 Jul 2024
Mannix Erin Chief Accounting Officer
Sold on a plan
$21.58K 444 at 48.61
0.6%
Planned (10b5-1)
27 Jun 2024
Mannix Erin Chief Accounting Officer
Sold on a plan
$24.70K 494 at 50.00
0.6%
Planned (10b5-1)
26 Jun 2024
BLASING KAREN Director
Sold on a plan
$157.50K 3,500 at 45.00
2.2%
Planned (10b5-1)
26 Jun 2024
Saintil Merline Director
Sold on a plan
$58.85K 1,329 at 44.28
15.9%
Planned (10b5-1)
20 Jun 2024
Mannix Erin Chief Accounting Officer
Sold on a plan
$21.20K 494 at 42.92
0.7%
Planned (10b5-1)
17 Jun 2024
Sijbrandij Sytse Chief Executive Officer · indirect
Sold on a plan
$2.44M 56,000 at 43.53
100%
Sold half or more
12 Jun 2024
ROBINS BRIAN G Chief Financial Officer
Sold on a plan
$530.38K 11,667 at 45.46
3.8%
Planned (10b5-1)
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