Insider trading

Period: 120 months Stock: VSTM Role: Directors × + 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.

51 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.

51 decisions over 120 months Remove this filter
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.

51 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.

51 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.
51 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
51 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.

51 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
16 Dec 2025
Stuglik Brian M Director
Sold on a plan
$5.41K 592 at 9.14
0.6%
Planned (10b5-1)
16 Dec 2025
Gagnon Robert E. Director
Sold on a plan
$2.59K 283 at 9.14
0.7%
Planned (10b5-1)
21 Nov 2025
Kauffman Michael Director
Sold on a plan
$85.50K 8,550 at 10.00
49.7%
Planned (10b5-1)
21 Nov 2025
Bunn Paul A. Director
Sold on a plan
$62.50K 6,250 at 10.00
75.0%
Sold half or more
9 Oct 2025
Bunn Paul A. Director
Sold on a plan
$75.50K 8,333 at 9.06
50.0%
Sold half or more
16 Sep 2025
Stuglik Brian M Director
Sold on a plan
$5.86K 587 at 9.99
0.6%
Planned (10b5-1)
16 Sep 2025
Gagnon Robert E. Director
Sold on a plan
$2.81K 281 at 9.99
0.7%
Planned (10b5-1)
16 Jun 2025
Stuglik Brian M Director
Sold at will
$3.36K 594 at 5.65
0.6%
Not planned
16 Jun 2025
Gagnon Robert E. Director
Sold at will
$1.60K 284 at 5.65
0.7%
Not planned
17 Mar 2025
Stuglik Brian M Director
Sold at will
$4.12K 593 at 6.95
0.6%
Not planned
17 Mar 2025
Gagnon Robert E. Director
Sold at will
$1.97K 284 at 6.95
0.8%
Not planned
19 Dec 2024
Stuglik Brian M Director
Sold at will
$1.46K 334 at 4.37
0.3%
Not planned
19 Dec 2024
Gagnon Robert E. Director
Sold at will
$568.10 130 at 4.37
0.4%
Not planned
16 Dec 2024
Stuglik Brian M Director
Sold at will
$2.70K 595 at 4.54
0.6%
Not planned
16 Dec 2024
Gagnon Robert E. Director
Sold at will
$1.29K 285 at 4.54
0.8%
Not planned
19 Sep 2024
Stuglik Brian M Director
Sold at will
$937.44 336 at 2.79
0.3%
Not planned
19 Sep 2024
Gagnon Robert E. Director
Sold at will
$365.49 131 at 2.79
0.4%
Not planned
16 Sep 2024
Stuglik Brian M Director
Sold at will
$1.68K 600 at 2.80
0.6%
Not planned
16 Sep 2024
Gagnon Robert E. Director
Sold at will
$803.60 287 at 2.80
0.8%
Not planned
20 Jun 2024
Stuglik Brian M Director
Sold at will
$1.08K 335 at 3.21
0.3%
Not planned
20 Jun 2024
Gagnon Robert E. Director
Sold at will
$420.51 131 at 3.21
0.4%
Not planned
17 Jun 2024
Stuglik Brian M Director
Sold at will
$2.07K 593 at 3.49
0.7%
Not planned
17 Jun 2024
Gagnon Robert E. Director
Sold at will
$987.67 283 at 3.49
1.0%
Not planned
19 Mar 2024
Stuglik Brian M Director
Sold at will
$2.83K 273 at 10.38
0.3%
Not planned
19 Mar 2024
Gagnon Robert E. Director
Sold at will
$1.35K 130 at 10.38
0.5%
Not planned
18 Mar 2024
Stuglik Brian M Director
Sold at will
$5.75K 537 at 10.71
0.6%
Not planned
18 Mar 2024
Gagnon Robert E. Director
Sold at will
$3.03K 283 at 10.71
1.0%
Not planned
6 Feb 2024
Gagnon Robert E. Director
Sold on a plan
$126.09K 9,204 at 13.70
24.9%
Planned (10b5-1)
12 Jan 2024
Gagnon Robert E. Director
Sold on a plan
$100.78K 9,204 at 10.95
19.9%
Planned (10b5-1)
19 Dec 2023
Stuglik Brian M Director
Sold at will
$2.12K 274 at 7.73
0.3%
Not planned
19 Dec 2023
Gagnon Robert E. Director
Sold at will
$1.00K 130 at 7.73
0.3%
Not planned
18 Dec 2023
Stuglik Brian M Director
Sold at will
$3.72K 487 at 7.64
0.5%
Not planned
18 Dec 2023
Gagnon Robert E. Director
Sold at will
$2.17K 284 at 7.64
0.6%
Not planned
19 Sep 2023
Stuglik Brian M Director
Sold at will
$2.70K 274 at 9.84
0.3%
Not planned
19 Sep 2023
Gagnon Robert E. Director
Sold at will
$1.28K 130 at 9.84
0.3%
Not planned
18 Sep 2023
Stuglik Brian M Director
Sold at will
$4.74K 478 at 9.91
0.5%
Not planned
18 Sep 2023
Gagnon Robert E. Director
Sold at will
$2.75K 278 at 9.91
0.6%
Not planned
20 Jun 2023
Gagnon Robert E. Director
Sold at will
$1.34K 130 at 10.30
0.3%
Not planned
16 Jun 2023
Gagnon Robert E. Director
Sold at will
$2.81K 283 at 9.92
0.6%
Not planned
20 Mar 2023
Gagnon Robert E. Director
Sold at will
$715.52 1,664 at 0.43
0.3%
Not planned
16 Mar 2023
Gagnon Robert E. Director
Sold at will
$1.46K 3,654 at 0.40
0.6%
Not planned
19 Dec 2022
Gagnon Robert E. Director
Sold, plan not stated
$528.73 1,429 at 0.37
0.2%
16 Dec 2022
Gagnon Robert E. Director
Sold, plan not stated
$4.96K 12,408 at 0.40
2.1%
4 Dec 2020
Bought
$108.50K 50,000 at 2.17
29.8%
First buy on file
15 Mar 2019
Bought
$105.93K 33,000 at 3.21
24.4%
First buy on file
28 Sep 2018
Bought
$36.55K 5,000 at 7.31
3.8%
First buy on file
28 Sep 2018
Kauffman Michael Director
Bought
$29.96K 4,000 at 7.49
opened
First buy on file
28 Sep 2018
Stuglik Brian M Director
Bought 3×
$7.30K 1,000 at 7.30
opened
First buy on file
5 Dec 2017
Bought
$239.13K 60,538 at 3.95
87.2%
First buy on file
5 Sep 2017
Rowinsky Eric K Director · indirect
Bought
$7.68K 2,000 at 3.84
opened
First buy on file
Showing 1–50 of 51. Page 1 of 2 Older →