Insider trading

Period: 120 months Stock: REGN Share of holding: 50% or more × + 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.

74 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.

74 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.

74 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.

74 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.
74 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
74 decisions over 120 months Remove this filter
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.

74 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
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
14 Jun 2024
BROWN MICHAEL S Director
Sold on a plan
$1.60M 1,535 at 1,040.00
52.6%
Sold half or more
12 Jun 2024
SCHLEIFER LEONARD S Bd. Co-Chair, President & CEO · indirect
Sold on a plan 3×
$16.41M 16,149 at 1,015.94
100%
Sold half or more
27 Dec 2023
BROWN MICHAEL S Director
Sold on a plan
$1.84M 2,049 at 898.00
62.2%
Sold half or more
23 Aug 2023
POON CHRISTINE A Director
Sold at will 5×
$10.31M 12,280 at 839.97
85.8%
Sold half or more
21 Apr 2023
BROWN MICHAEL S Director
Sold on a plan
$2.45M 3,070 at 798.42
71.1%
Sold half or more
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 Jan 2023
BROWN MICHAEL S Director
Sold, plan not stated
$2.29M 3,070 at 747.14
71.1%
Sold half or more
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
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
3 Oct 2022
Sold, plan not stated
$2.59M 3,612 at 718.00
61.4%
Sold half or more
30 Sep 2022
Sold, plan not stated
$2.39M 3,428 at 698.00
60.2%
Sold half or more
29 Sep 2022
Sold, plan not stated 12×
$2.62M 3,798 at 691.07
62.6%
Sold half or more
8 Sep 2022
Bassler Bonnie L Director
Sold, plan not stated 2×
$1.78M 2,558 at 696.00
70.3%
Sold half or more
6 Sep 2022
COLES N ANTHONY Director
Sold, plan not stated 9×
$3.49M 6,000 at 581.28
84.6%
Sold half or more
9 Aug 2022
POON CHRISTINE A Director
Sold, plan not stated 2×
$9.31M 15,000 at 620.91
88.9%
Sold half or more
7 Apr 2022
Bassler Bonnie L Director
Sold, plan not stated
$899.00K 1,240 at 725.00
53.4%
Sold half or more
30 Mar 2022
VAGELOS P ROY Director · indirect
Sold, plan not stated 2×
$20.00M 28,572 at 700.01
54.9%
Sold half or more
30 Mar 2022
Bassler Bonnie L Director
Sold, plan not stated
$868.00K 1,240 at 700.00
53.4%
Sold half or more
29 Mar 2022
BROWN MICHAEL S Director
Sold, plan not stated
$1.06M 1,522 at 699.00
58.4%
Sold half or more
21 Mar 2022
Sold, plan not stated
$5.13M 7,439 at 690.00
76.6%
Sold half or more
17 Mar 2022
Sold, plan not stated
$5.32M 7,830 at 680.00
77.5%
Sold half or more
16 Mar 2022
Sold, plan not stated
$2.94M 4,361 at 675.00
65.8%
Sold half or more
16 Mar 2022
Zoghbi Huda Y Director
Sold, plan not stated
$1.35M 2,000 at 675.00
64.9%
Sold half or more
9 Dec 2021
Sold, plan not stated
$2.52M 3,784 at 665.00
64.6%
Sold half or more
15 Sep 2021
COLES N ANTHONY Director
Sold, plan not stated 13×
$7.87M 11,948 at 658.98
93.0%
Sold half or more
14 Sep 2021
Zoghbi Huda Y Director
Sold, plan not stated
$648.70K 998 at 650.00
52.8%
Sold half or more
13 Sep 2021
Sold, plan not stated 17×
$8.18M 12,750 at 641.71
86.0%
Sold half or more
13 Sep 2021
BROWN MICHAEL S Director
Sold, plan not stated 17×
$6.29M 9,704 at 648.16
91.6%
Sold half or more
27 Aug 2021
POON CHRISTINE A Director
Sold, plan not stated 11×
$10.02M 15,000 at 668.09
89.9%
Sold half or more
18 Aug 2021
COLES N ANTHONY Director
Sold, plan not stated
$3.32M 5,100 at 650.00
85.0%
Sold half or more
16 Aug 2021
Bassler Bonnie L Director
Sold, plan not stated
$767.97K 1,219 at 630.00
57.8%
Sold half or more
13 Aug 2021
COLES N ANTHONY Director
Sold, plan not stated
$1.25M 2,000 at 625.00
68.9%
Sold half or more
5 Aug 2021
Bassler Bonnie L Director
Sold, plan not stated
$1.54M 2,559 at 600.00
74.2%
Sold half or more
1 Jul 2021
Bassler Bonnie L Director
Sold, plan not stated
$1.47M 2,558 at 575.00
74.2%
Sold half or more
25 Jun 2021
BROWN MICHAEL S Director
Sold, plan not stated
$1.14M 2,084 at 549.00
70.1%
Sold half or more
21 Jun 2021
YANCOPOULOS GEORGE President and Chief Scientific · indirect
Sold, plan not stated 12×
$43.11M 80,000 at 538.90
97.4%
Sold half or more
14 Jun 2021
BROWN MICHAEL S Director
Sold, plan not stated
$892.50K 1,700 at 525.00
65.6%
Sold half or more
25 Jan 2021
BROWN MICHAEL S Director
Sold, plan not stated
$1.37M 2,480 at 554.32
73.6%
Sold half or more
5 Oct 2020
Sold, plan not stated
$5.53M 9,212 at 600.00
62.0%
Sold half or more
22 Sep 2020
BROWN MICHAEL S Director
Sold, plan not stated
$2.81M 5,090 at 552.36
88.8%
Sold half or more
21 Sep 2020
Sold, plan not stated 12×
$9.10M 16,554 at 549.86
74.5%
Sold half or more
28 Aug 2020
POON CHRISTINE A Director
Sold, plan not stated 6×
$24.05M 40,000 at 601.22
96.5%
Sold half or more
25 Aug 2020
Van Plew Daniel P EVP & General Mgr Industrial O
Sold, plan not stated 6×
$16.56M 27,109 at 610.89
57.5%
Sold half or more
7 Jul 2020
SING GEORGE L Director · indirect
Sold, plan not stated 4×
$1.95M 3,000 at 650.16
88.2%
Sold half or more
7 Jul 2020
Zoghbi Huda Y Director
Sold, plan not stated
$1.11M 1,706 at 650.00
72.6%
Sold half or more
1 Jul 2020
BROWN MICHAEL S Director
Sold, plan not stated 12×
$2.20M 3,613 at 607.62
84.9%
Sold half or more
29 Jun 2020
SING GEORGE L Director · indirect
Sold, plan not stated 6×
$1.83M 3,000 at 608.91
68.2%
Sold half or more
Showing 1–50 of 74. Page 1 of 2 Older →