Insider trading

Period: 120 months Stock: PROK 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.

52 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.

52 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.

52 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.

52 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.
52 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
52 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.

52 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
20 Aug 2026
Pereira Brian JG Director · indirect
Sold at will
$316.56K 222,948 at 1.42
100%
Sold half or more
20 Aug 2026
Pereira Brian JG Director
Sold at will
$38.41K 27,052 at 1.42
100%
Sold half or more
19 Aug 2026
Pereira Brian JG Director · indirect
Sold at will
$321.20K 222,949 at 1.44
50.0%
Sold half or more
19 Aug 2026
Pereira Brian JG Director
Sold at will
$38.97K 27,051 at 1.44
50.0%
Not planned
18 Aug 2026
Pereira Brian JG Director · indirect
Sold at will
$314.47K 229,338 at 1.37
34.0%
Not planned
18 Aug 2026
Pereira Brian JG Director
Sold at will
$38.16K 27,826 at 1.37
34.0%
Not planned
13 Nov 2025
Pereira Brian JG Director · indirect
Sold at will 2×
$1.19M 502,136 at 2.37
100%
Sold half or more
12 Nov 2025
Pereira Brian JG Director · indirect
Sold at will 2×
$694.52K 255,026 at 2.72
82.4%
Sold half or more
8 Jul 2025
Weber Darin J. Chief Regulatory Officer
Sold on a plan
$312.51K 103,480 at 3.02
100%
Sold half or more
19 Sep 2024
Weber Darin J. Chief Regulatory Officer
Sold on a plan
$41.03K 16,412 at 2.50
13.7%
Planned (10b5-1)
26 Jul 2024
Weber Darin J. Chief Regulatory Officer
Sold on a plan
$2.07K 826 at 2.50
0.7%
Planned (10b5-1)
18 Jun 2024
Weber Darin J. Chief Regulatory Officer
Sold on a plan
$48.62K 17,238 at 2.82
12.5%
Planned (10b5-1)
20 May 2024
Weber Darin J. Chief Regulatory Officer
Sold on a plan
$70.39K 17,238 at 4.08
11.1%
Planned (10b5-1)
22 Apr 2024
Weber Darin J. SVP of Regulatory Development
Sold on a plan
$41.32K 16,438 at 2.51
9.6%
Planned (10b5-1)
18 Apr 2024
Weber Darin J. SVP of Regulatory Development
Sold on a plan
$2.03K 800 at 2.54
0.5%
Planned (10b5-1)
16 Apr 2024
Weber Darin J. SVP of Regulatory Development
Sold on a plan
$43.10K 17,238 at 2.50
9.1%
Planned (10b5-1)
12 Apr 2024
Weber Darin J. SVP of Regulatory Development
Sold on a plan
$145.50K 84,103 at 1.73
30.7%
Planned (10b5-1)
1 Apr 2024
Weber Darin J. SVP of Regulatory Development
Sold on a plan
$507.00 300 at 1.69
0.1%
Planned (10b5-1)
19 Nov 2023
Palihapitiya Chamath Former 10% Owner · indirect
Sold at will 2×
$9.50M 7,256,367 at 1.31
100%
Sold half or more
17 Nov 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$308.40K 258,400 at 1.19
4.7%
Not planned
16 Nov 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$259.40K 212,100 at 1.22
3.8%
Not planned
15 Nov 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$420.15K 282,300 at 1.49
4.8%
Not planned
14 Nov 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$459.09K 306,200 at 1.50
4.9%
Not planned
13 Nov 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$139.68K 88,700 at 1.57
1.4%
Not planned
10 Nov 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$138.41K 85,900 at 1.61
1.3%
Not planned
9 Nov 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$160.70K 95,900 at 1.68
1.5%
Not planned
8 Nov 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$97.76K 59,000 at 1.66
0.9%
Not planned
7 Nov 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$113.37K 71,233 at 1.59
1.1%
Not planned
6 Nov 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$123.82K 79,600 at 1.56
1.2%
Not planned
3 Nov 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$256.47K 148,300 at 1.73
2.2%
Not planned
2 Nov 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$231.96K 133,700 at 1.73
1.9%
Not planned
1 Nov 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$199.67K 123,400 at 1.62
1.7%
Not planned
31 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$239.30K 141,900 at 1.69
2.0%
Not planned
30 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$259.54K 157,000 at 1.65
2.1%
Not planned
27 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$146.68K 92,500 at 1.59
1.2%
Not planned
26 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$140.58K 77,960 at 1.80
1.0%
Not planned
25 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$118.38K 67,213 at 1.76
0.9%
Not planned
24 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$308.61K 176,300 at 1.75
2.2%
Not planned
23 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$293.43K 160,300 at 1.83
2.0%
Not planned
20 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$167.83K 87,200 at 1.92
1.1%
Not planned
19 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$438.70K 200,000 at 2.19
2.4%
Not planned
18 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$285.40K 125,100 at 2.28
1.5%
Not planned
17 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$301.36K 106,400 at 2.83
1.2%
Not planned
16 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$618.63K 215,543 at 2.87
2.5%
Not planned
13 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$667.53K 250,000 at 2.67
2.8%
Not planned
12 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will 2×
$436.01K 161,863 at 2.69
1.8%
Not planned
11 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$288.29K 75,000 at 3.84
0.8%
Not planned
10 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$325.16K 75,000 at 4.34
0.8%
Not planned
9 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$315.23K 75,000 at 4.20
0.8%
Not planned
6 Oct 2023
Palihapitiya Chamath 10% owner · indirect
Sold at will
$336.36K 75,000 at 4.48
0.8%
Not planned
Showing 1–50 of 52. Page 1 of 2 Older →