Insider trading

Period: 120 months Stock: REGN Plan: Not on a plan × + Add filter Clear all
Views & alerts

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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.

355 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.

355 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.

355 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.

355 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.
355 decisions over 120 months Remove this filter
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
355 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.

355 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
7 Nov 2025
Pitofsky Jason VP Controller
Sold at will
$280.77K 431 at 651.43
9.2%
Not planned
29 Oct 2025
POON CHRISTINE A Director
Sold at will 6×
$4.25M 6,500 at 654.27
73.4%
Sold half or more
28 Aug 2024
Fenimore Christopher R. SVP Finance & CFO · indirect
Sold at will 10×
$6.85M 5,680 at 1,205.33
100%
Sold half or more
15 Aug 2024
POON CHRISTINE A Director
Sold at will 7×
$12.55M 10,838 at 1,158.17
83.3%
Sold half or more
7 Aug 2024
Pitofsky Jason VP Controller
Sold at will
$521.09K 487 at 1,070.00
10.4%
Not planned
26 Feb 2024
SING GEORGE L Director
Sold at will 2×
$992.50K 1,000 at 992.50
3.7%
Not planned
26 Feb 2024
LAROSA JOSEPH J EVP General Counsel and Secret
Sold at will
$990.00K 1,000 at 990.00
2.7%
Not planned
26 Feb 2024
Bassler Bonnie L Director
Sold at will
$836.28K 854 at 979.25
38.2%
Not planned
23 Feb 2024
SING GEORGE L Director
Sold at will
$492.50K 500 at 985.00
1.9%
Not planned
22 Feb 2024
SING GEORGE L Director
Sold at will 3×
$2.90M 3,000 at 965.00
10.2%
Not planned
22 Feb 2024
LAROSA JOSEPH J EVP General Counsel and Secret
Sold at will
$967.65K 1,000 at 967.65
2.6%
Not planned
14 Feb 2024
Van Plew Daniel P EVP & General Mgr, Industrial
Sold at will 13×
$9.83M 10,434 at 942.28
33.9%
Not planned
9 Feb 2024
Fenimore Christopher R. SVP Finance & CFO
Sold at will 6×
$4.69M 4,919 at 953.31
25.5%
Not planned
9 Feb 2024
SING GEORGE L Director
Sold at will
$477.50K 500 at 955.00
1.9%
Not planned
8 Feb 2024
SING GEORGE L Director
Sold at will
$472.50K 500 at 945.00
1.9%
Not planned
7 Feb 2024
STAHL NEIL EVP Research and Development
Sold at will 7×
$7.64M 8,037 at 950.35
13.4%
Not planned
7 Feb 2024
LAROSA JOSEPH J EVP General Counsel and Secret
Sold at will
$950.00K 1,000 at 950.00
2.5%
Not planned
5 Feb 2024
McCourt Marion EVP Commercial
Sold at will
$934.71K 1,000 at 934.71
6.8%
Not planned
24 Aug 2023
Van Plew Daniel P EVP & General Mgr, Industrial
Sold at will 10×
$5.22M 6,197 at 841.71
22.4%
Not planned
23 Aug 2023
POON CHRISTINE A Director
Sold at will 5×
$10.31M 12,280 at 839.97
85.8%
Sold half or more
23 Aug 2023
Landry Robert E EVP Finance CFO
Sold at will
$188.21K 223 at 844.00
0.7%
Not planned
22 Aug 2023
STAHL NEIL EVP Research and Development
Sold at will 3×
$9.81M 11,665 at 840.98
18.0%
Not planned
1 Mar 2023
McCourt Marion EVP Commercial
Sold, plan not stated
$835.88K 1,100 at 759.89
5.0%
1 Mar 2023
RYAN ARTHUR F Director
Sold, plan not stated 9×
$76.25K 100 at 762.50
0.5%
7 Feb 2023
McCourt Marion EVP Commercial
Sold, plan not stated
$769.04K 1,000 at 769.04
4.3%
6 Feb 2023
YANCOPOULOS GEORGE President and Chief Scientific · indirect
Sold, plan not stated
$10.55M 13,189 at 800.08
6.2%
6 Feb 2023
Sold, plan not stated
$2.89M 3,613 at 800.00
36.6%
6 Feb 2023
BROWN MICHAEL S Director
Sold, plan not stated
$2.45M 3,071 at 798.00
71.1%
Sold half or more
6 Feb 2023
Landry Robert E EVP Finance CFO
Sold, plan not stated 14×
$593.24K 752 at 788.88
2.3%
6 Feb 2023
BROWN MICHAEL S Director · indirect
Sold, plan not stated
$398.50K 500 at 797.00
7.5%
3 Feb 2023
Bassler Bonnie L Director
Sold, plan not stated
$795.36K 1,021 at 779.00
45.0%
3 Feb 2023
Landry Robert E EVP Finance CFO
Sold, plan not stated
$564.97K 739 at 764.50
2.3%
1 Feb 2023
McCourt Marion EVP Commercial
Sold, plan not stated
$827.41K 1,100 at 752.19
4.7%
1 Feb 2023
RYAN ARTHUR F Director
Sold, plan not stated 11×
$75.61K 100 at 756.13
0.5%
27 Jan 2023
BROWN MICHAEL S Director
Sold, plan not stated
$747.00 1 at 747.00
0.1%
6 Jan 2023
BROWN MICHAEL S Director
Sold, plan not stated
$2.29M 3,070 at 747.14
71.1%
Sold half or more
3 Jan 2023
McCourt Marion EVP Commercial
Sold, plan not stated
$794.05K 1,100 at 721.86
4.7%
3 Jan 2023
RYAN ARTHUR F Director
Sold, plan not stated 12×
$72.63K 100 at 726.29
0.5%
28 Dec 2022
COLES N ANTHONY Director
Sold, plan not stated 8×
$4.11M 5,758 at 714.11
84.0%
Sold half or more
12 Dec 2022
McCourt Marion EVP Commercial
Sold, plan not stated
$192.76K 264 at 730.17
1.4%
8 Dec 2022
Bassler Bonnie L Director
Sold, plan not stated
$169.82K 218 at 779.00
16.8%
2 Dec 2022
Landry Robert E EVP Finance CFO
Sold, plan not stated 3×
$461.56K 610 at 756.66
2.1%
1 Dec 2022
McCourt Marion EVP Commercial
Sold, plan not stated
$831.81K 1,100 at 756.19
5.3%
1 Dec 2022
RYAN ARTHUR F Director
Sold, plan not stated 15×
$75.82K 100 at 758.17
0.5%
23 Nov 2022
Van Plew Daniel P EVP & General Mgr, Industrial
Sold, plan not stated 14×
$8.87M 11,972 at 740.75
28.1%
15 Nov 2022
MURPHY ANDREW J EVP Research
Sold, plan not stated 20×
$2.71M 3,720 at 727.81
6.1%
8 Nov 2022
BROWN MICHAEL S Director
Sold, plan not stated 13×
$3.02M 3,995 at 755.18
78.7%
Sold half or more
8 Nov 2022
BROWN MICHAEL S Director · indirect
Sold, plan not stated
$374.25K 500 at 748.49
7.0%
7 Nov 2022
Van Plew Daniel P EVP & General Mgr, Industrial
Sold, plan not stated 6×
$5.88M 7,886 at 745.40
20.5%
4 Nov 2022
McCourt Marion EVP Commercial
Sold, plan not stated
$727.82K 1,000 at 727.82
4.8%
Showing 1–50 of 355. Page 1 of 8 Older →