Insider trading

Period: 12 months Stock: OSCR + 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.

41 decisions over 12 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.

41 decisions over 12 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.

41 decisions over 12 months
The trade

Minimum amount

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

41 decisions over 12 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.
41 decisions over 12 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
41 decisions over 12 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.

41 decisions over 12 months
Stock
Insider
Type ?
Why it stands out
18 Sep 2026
Sold on a plan
$806.00K 25,000 at 32.24
18.2%
Planned (10b5-1)
3 Sep 2026
Schlosser Mario Director
Sold on a plan
$988.22K 31,422 at 31.45
6.5%
Planned (10b5-1)
3 Sep 2026
Blackley Richard Scott Chief Financial Officer
Sold on a plan
$907.93K 28,869 at 31.45
2.7%
Planned (10b5-1)
3 Sep 2026
Liang Janet President, Oscar Insurance
Sold on a plan
$325.82K 10,360 at 31.45
4.0%
Planned (10b5-1)
3 Sep 2026
McAnaney Adam Chief Legal Officer
Sold on a plan
$285.94K 9,092 at 31.45
4.2%
Planned (10b5-1)
3 Sep 2026
Baltrus Victoria Chief Accounting Officer
Sold on a plan
$30.13K 958 at 31.45
0.4%
Planned (10b5-1)
28 Aug 2026
Schlosser Mario Director
Sold at will
$4.62M 150,000 at 30.79
23.8%
Not planned
27 Aug 2026
Schlosser Mario Director
Sold at will
$18.20M 600,000 at 30.34
55.5%
Sold half or more
18 Aug 2026
Blackley Richard Scott Chief Financial Officer · indirect
Sold at will
$595.13K 18,750 at 31.74
25.0%
Not planned
1 Jul 2026
Schlosser Mario Director · indirect
Sold on a plan 3×
$1.48M 47,500 at 31.24
100%
Sold half or more
30 Jun 2026
Bertolini Mark T Chief Executive Officer
Sold on a plan 2×
$17.78M 624,244 at 28.48
7.5%
Planned (10b5-1)
29 Jun 2026
Bertolini Mark T Chief Executive Officer
Sold on a plan 2×
$17.99M 614,752 at 29.26
6.8%
Planned (10b5-1)
26 Jun 2026
Bertolini Mark T Chief Executive Officer
Sold on a plan 2×
$17.31M 591,168 at 29.28
6.2%
Planned (10b5-1)
25 Jun 2026
Bertolini Mark T Chief Executive Officer
Sold on a plan 2×
$17.60M 615,142 at 28.61
6.0%
Planned (10b5-1)
23 Jun 2026
Schlosser Mario Director
Sold on a plan 3×
$25.85M 880,000 at 29.38
64.7%
Sold half or more
23 Jun 2026
Schlosser Mario Director · indirect
Sold on a plan 9×
$4.33M 147,500 at 29.38
100%
Sold half or more
2 Jun 2026
Schlosser Mario Director
Sold on a plan 2×
$748.63K 34,120 at 21.94
6.6%
Planned (10b5-1)
2 Jun 2026
Blackley Richard Scott Chief Financial Officer
Sold on a plan 2×
$695.16K 31,683 at 21.94
2.9%
Planned (10b5-1)
2 Jun 2026
Liang Janet President, Oscar Insurance
Sold on a plan 2×
$273.72K 12,475 at 21.94
4.6%
Planned (10b5-1)
2 Jun 2026
McAnaney Adam Chief Legal Officer
Sold on a plan 2×
$216.32K 9,859 at 21.94
4.3%
Planned (10b5-1)
2 Jun 2026
Baltrus Victoria Chief Accounting Officer
Sold on a plan 2×
$33.42K 1,523 at 21.94
0.7%
Planned (10b5-1)
18 May 2026
Blackley Richard Scott Chief Financial Officer
Sold on a plan
$2.75M 110,000 at 25.03
9.0%
Planned (10b5-1)
14 May 2026
Blackley Richard Scott Chief Financial Officer
Sold on a plan 2×
$2.32M 100,000 at 23.16
7.6%
Planned (10b5-1)
6 Apr 2026
Bertolini Mark T Chief Executive Officer
Bought
$11.92M 1,000,000 at 11.92
10.9%
First buy on file
2 Mar 2026
Schlosser Mario President of Technology & CTO
Sold on a plan
$325.85K 24,335 at 13.39
4.5%
Planned (10b5-1)
2 Mar 2026
Blackley Richard Scott Chief Financial Officer
Sold on a plan
$257.37K 19,221 at 13.39
1.3%
Planned (10b5-1)
2 Mar 2026
McAnaney Adam Chief Legal Officer
Sold on a plan
$250.53K 18,710 at 13.39
7.6%
Planned (10b5-1)
2 Mar 2026
Liang Janet President, Oscar Insurance
Sold on a plan
$99.80K 7,453 at 13.39
2.7%
Planned (10b5-1)
2 Mar 2026
Baltrus Victoria Chief Accounting Officer
Sold on a plan
$62.10K 4,638 at 13.39
2.1%
Planned (10b5-1)
8 Jan 2026
Schlosser Mario President of Technology & CTO
Sold on a plan
$406.62K 23,038 at 17.65
6.2%
Planned (10b5-1)
6 Jan 2026
Schlosser Mario President of Technology & CTO
Sold on a plan
$1.31M 76,962 at 17.01
18.0%
Planned (10b5-1)
5 Jan 2026
Schlosser Mario President of Technology & CTO
Sold on a plan
$1.52M 96,928 at 15.64
21.7%
Planned (10b5-1)
2 Jan 2026
Schlosser Mario President of Technology & CTO
Sold on a plan
$2.07M 137,933 at 15.02
27.7%
Planned (10b5-1)
24 Dec 2025
Schlosser Mario President of Technology & CTO
Sold on a plan
$582.53K 38,835 at 15.00
8.1%
Planned (10b5-1)
2 Dec 2025
Blackley Richard Scott Chief Financial Officer
Sold on a plan
$416.99K 25,135 at 16.59
1.8%
Planned (10b5-1)
2 Dec 2025
Schlosser Mario President of Technology & CTO
Sold on a plan
$397.58K 23,965 at 16.59
4.8%
Planned (10b5-1)
2 Dec 2025
Liang Janet President, Oscar Insurance
Sold on a plan
$121.74K 7,338 at 16.59
4.1%
Planned (10b5-1)
2 Dec 2025
Baltrus Victoria Chief Accounting Officer
Sold on a plan
$68.83K 4,149 at 16.59
2.0%
Planned (10b5-1)
2 Dec 2025
McAnaney Adam Chief Legal Officer
Sold on a plan
$30.72K 1,852 at 16.59
1.0%
Planned (10b5-1)
12 Nov 2025
Schlosser Mario President of Technology & CTO
Sold at will
$1.58M 105,300 at 15.05
17.4%
Not planned
11 Nov 2025
Schlosser Mario President of Technology & CTO
Sold at will
$4.37M 286,182 at 15.27
36.3%
Not planned
Showing 1–41 of 41.