Insider trading

Period: 120 months Stock: GTLB Minimum amount: $10M × + 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.

26 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.

26 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.

26 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.

26 decisions over 120 months Remove this filter
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.
26 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
26 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.

26 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
28 Sep 2026
Sijbrandij Sytse Director · indirect
Sold on a plan 3×
$19.71M 430,000 at 45.84
3.3%
Planned (10b5-1)
25 Sep 2026
Sijbrandij Sytse Director · indirect
Sold on a plan 2×
$33.69M 705,490 at 47.75
5.1%
Planned (10b5-1)
24 Sep 2026
Sijbrandij Sytse Director · indirect
Sold on a plan 2×
$47.69M 980,710 at 48.63
6.6%
Planned (10b5-1)
20 Mar 2026
Jacobson Matthew Director · indirect
Sold at will 8×
$10.28M 459,799 at 22.37
100%
Sold half or more
19 Mar 2026
Jacobson Matthew Director · indirect
Sold at will 8×
$16.07M 700,109 at 22.95
100.0%
Sold half or more
19 Dec 2025
Jacobson Matthew Director · indirect
Sold at will
$12.75M 334,827 at 38.08
100%
Sold half or more
19 Sep 2025
Jacobson Matthew Director · indirect
Sold at will 4×
$11.71M 233,382 at 50.17
94.3%
Sold half or more
17 Sep 2025
Jacobson Matthew Director · indirect
Sold at will 8×
$20.02M 396,147 at 50.53
84.4%
Sold half or more
26 Dec 2024
Jacobson Matthew Director · indirect
Sold at will 2×
$32.71M 547,679 at 59.72
90.4%
Sold half or more
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
15 Mar 2024
Sijbrandij Sytse Chief Executive Officer · indirect
Sold on a plan 2×
$12.33M 230,000 at 53.59
100%
Sold half or more
14 Feb 2024
Sijbrandij Sytse Chief Executive Officer · indirect
Sold on a plan 3×
$28.14M 380,000 at 74.06
100%
Sold half or more
16 Jan 2024
Sijbrandij Sytse Chief Executive Officer · indirect
Sold on a plan 3×
$23.68M 380,000 at 62.32
100%
Sold half or more
15 Dec 2023
Sijbrandij Sytse Chief Executive Officer · indirect
Sold on a plan 3×
$89.05M 1,425,567 at 62.47
88.3%
Sold half or more
17 Jul 2023
Sijbrandij Sytse Chief Executive Officer · indirect
Sold on a plan 3×
$12.20M 230,000 at 53.06
100%
Sold half or more
4 May 2023
GV 2021 GP, L.L.C. Member of 10% Group · indirect
Bought 3×
$10.69M 396,361 at 26.97
17.7%
13 Mar 2023
GV 2021 GP, L.L.C. Member of 10% Group · indirect
Bought 4×
$12.16M 415,000 at 29.29
32.1%
Largest buy in 3 yrs
10 Dec 2021
Jacobson Matthew Director · indirect
Bought 10×
$21.74M 291,018 at 74.70
119%
+119% of stake
10 Dec 2021
Makan Divesh 10% owner · indirect
Bought 5×
$21.36M 286,011 at 74.67
opened
First buy on file
9 Dec 2021
Jacobson Matthew Director · indirect
Bought 14×
$49.62M 634,550 at 78.19
opened
9 Dec 2021
ICONIQ Strategic Partners VI, L.P. 10% owner · indirect
Bought 7×
$27.54M 352,271 at 78.19
195%
First buy on file
9 Dec 2021
Bought 7×
$22.07M 282,279 at 78.20
195%
First buy on file
18 Oct 2021
Sijbrandij Sytse Chief Executive Officer · indirect
Sold, plan not stated
$192.50M 2,500,000 at 77.00
100%
Sold half or more
18 Oct 2021
ICONIQ Strategic Partners III, L.P. 10% owner · indirect
Bought 8×
$100.12M 1,300,200 at 77.00
opened
First buy on file
18 Oct 2021
Jacobson Matthew Director · indirect
Bought 4×
$50.06M 650,100 at 77.00
opened
First buy on file
18 Oct 2021
Bought
$25.03M 325,000 at 77.00
opened
First buy on file
Showing 1–26 of 26.