Insider trading

Period: 120 months Stock: BSX Minimum amount: $1M × + 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.

99 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.

99 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.

99 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.

99 decisions over 120 months Remove this filter
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.
99 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
99 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.

99 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
3 Aug 2026
Mahoney Michael F Chairman, President & CEO
Bought
$9.00M 186,240 at 48.33
13.3%
First buy on file
2 Feb 2026
Mahoney Michael F Chairman, President & CEO
Sold on a plan 2×
$15.04M 160,901 at 93.49
10.2%
Planned (10b5-1)
1 Dec 2025
Butcher Arthur C EVP& Grp Pres, MedSurg & APAC
Sold on a plan
$1.76M 17,313 at 101.55
42.3%
Planned (10b5-1)
6 Nov 2025
Zane Ellen M Director
Sold on a plan
$1.27M 12,891 at 98.28
34.8%
Planned (10b5-1)
3 Nov 2025
Fitzgerald Joseph Michael EVP & Group Pres, Cardiology
Sold on a plan 3×
$4.97M 50,000 at 99.47
21.9%
Planned (10b5-1)
27 Oct 2025
Zane Ellen M Director
Sold on a plan
$1.01M 9,990 at 101.13
27.0%
Planned (10b5-1)
1 Oct 2025
Fitzgerald Joseph Michael EVP & Group Pres, Cardiology
Sold on a plan 2×
$4.92M 50,000 at 98.47
21.9%
Planned (10b5-1)
2 Sep 2025
Fitzgerald Joseph Michael EVP & Group Pres, Cardiology
Sold on a plan 2×
$5.27M 50,000 at 105.43
21.9%
Planned (10b5-1)
1 Aug 2025
Fitzgerald Joseph Michael EVP & Group Pres, Cardiology
Sold on a plan
$5.23M 50,000 at 104.63
21.9%
Planned (10b5-1)
1 Aug 2025
Butcher Arthur C EVP& Grp Pres, MedSurg & APAC
Sold on a plan
$1.81M 17,313 at 104.63
42.3%
Planned (10b5-1)
1 Jul 2025
Fitzgerald Joseph Michael EVP & Group Pres, Cardiology
Sold on a plan
$5.35M 50,000 at 106.97
21.9%
Planned (10b5-1)
4 Jun 2025
Fitzgerald Joseph Michael EVP & Group Pres, Cardiology
Sold on a plan
$5.80M 56,372 at 102.88
24.0%
Planned (10b5-1)
2 Jun 2025
Mahoney Michael F Chairman, President & CEO
Sold on a plan 2×
$17.05M 164,443 at 103.69
10.0%
Planned (10b5-1)
1 May 2025
Mahoney Michael F Chairman, President & CEO
Sold on a plan 2×
$16.85M 164,443 at 102.48
9.7%
Planned (10b5-1)
1 May 2025
Butcher Arthur C EVP& Grp Pres, MedSurg & APAC
Sold on a plan
$1.77M 17,314 at 102.06
43.8%
Planned (10b5-1)
1 Apr 2025
Mahoney Michael F Chairman, President & CEO
Sold on a plan
$16.45M 164,442 at 100.01
9.3%
Planned (10b5-1)
24 Feb 2025
Zane Ellen M Director
Sold on a plan
$1.42M 13,586 at 104.23
28.0%
Planned (10b5-1)
19 Feb 2025
Brennan Daniel J. EVP and CFO
Sold on a plan
$7.09M 67,333 at 105.24
23.0%
Planned (10b5-1)
18 Feb 2025
Brennan Daniel J. EVP and CFO
Sold on a plan 2×
$1.83M 17,530 at 104.57
7.0%
Planned (10b5-1)
12 Feb 2025
Brennan Daniel J. EVP and CFO
Sold on a plan
$1.59M 15,087 at 105.07
5.9%
Planned (10b5-1)
12 Feb 2025
Mirviss Jeffrey B. EVP&Pres, Periph Intervent
Sold on a plan
$1.37M 13,022 at 105.06
31.4%
Planned (10b5-1)
11 Feb 2025
LUDWIG EDWARD J Director
Sold at will
$1.27M 12,000 at 105.48
33.0%
Not planned
3 Feb 2025
Butcher Arthur C EVP& Grp Pres, MedSurg & APAC
Sold on a plan 2×
$1.76M 17,313 at 101.80
75.9%
Sold half or more
25 Nov 2024
Butcher Arthur C EVP& Grp Pres, MedSurg & APAC
Sold on a plan
$1.25M 14,010 at 89.27
93.5%
Sold half or more
8 Nov 2024
Sorenson John Bradley EVP, Global Operations
Sold on a plan
$2.68M 30,580 at 87.66
43.5%
Planned (10b5-1)
5 Nov 2024
Mahoney Michael F Chairman, President & CEO
Sold on a plan 2×
$13.79M 162,778 at 84.75
9.7%
Planned (10b5-1)
7 Oct 2024
Mahoney Michael F Chairman, President & CEO
Sold on a plan 2×
$13.78M 162,777 at 84.63
9.4%
Planned (10b5-1)
7 Oct 2024
Fitzgerald Joseph Michael EVP & Group Pres, Cardiology
Sold on a plan
$11.26M 132,527 at 85.00
45.2%
Planned (10b5-1)
5 Sep 2024
Mahoney Michael F Chairman, President & CEO
Sold on a plan
$13.21M 162,777 at 81.17
9.1%
Planned (10b5-1)
28 Aug 2024
Fitzgerald Joseph Michael EVP & Group Pres, Cardiology
Sold on a plan
$1.13M 14,132 at 80.00
7.4%
Planned (10b5-1)
26 Aug 2024
Butcher Arthur C EVP& Grp Pres, MedSurg & APAC
Sold on a plan
$1.11M 14,012 at 79.25
56.5%
Sold half or more
29 May 2024
Mirviss Jeffrey B. EVP&Pres, Periph Intervent
Sold on a plan
$4.79M 63,802 at 75.10
69.5%
Sold half or more
28 May 2024
Butcher Arthur C EVP& Grp Pres, MedSurg & APAC
Sold on a plan
$1.06M 14,011 at 75.34
41.0%
Planned (10b5-1)
23 May 2024
Brennan Daniel J. EVP and CFO
Sold on a plan
$3.58M 47,621 at 75.11
17.5%
Planned (10b5-1)
22 May 2024
Brennan Daniel J. EVP and CFO
Sold on a plan
$4.89M 64,454 at 75.91
19.2%
Planned (10b5-1)
22 May 2024
Brown Vance R SVP, GC and Corp. Secretary
Sold on a plan
$1.14M 15,006 at 76.01
31.7%
Planned (10b5-1)
21 May 2024
Brown Vance R SVP, GC and Corp. Secretary
Sold on a plan
$1.36M 18,037 at 75.60
35.8%
Planned (10b5-1)
1 May 2024
Sorenson John Bradley EVP, Global Operations
Sold on a plan
$1.26M 17,587 at 71.50
25.8%
Planned (10b5-1)
1 Apr 2024
Sorenson John Bradley EVP, Global Operations
Sold on a plan
$1.13M 16,351 at 69.30
24.4%
Planned (10b5-1)
29 Dec 2023
Fitzgerald Joseph Michael EVP & Group Pres, Cardiology
Sold at will
$4.71M 81,940 at 57.50
32.0%
Not planned
6 Nov 2023
Mahoney Michael F Chairman, President & CEO
Sold at will
$5.95M 113,356 at 52.51
7.0%
Not planned
9 Oct 2023
Mahoney Michael F Chairman, President & CEO
Sold at will
$5.90M 113,355 at 52.09
7.0%
Not planned
12 Sep 2023
Mahoney Michael F Chairman, President & CEO
Sold at will
$6.11M 113,355 at 53.91
7.0%
Not planned
16 May 2023
Fitzgerald Joseph Michael EVP & Group Pres, Cardiology
Sold at will
$3.39M 63,339 at 53.60
22.8%
Not planned
2 May 2023
Thepaut Eric Francis Yves EVP & Pres, Eur, Mid-East, Afr
Sold at will
$4.38M 83,401 at 52.49
87.2%
Sold half or more
2 Mar 2023
Brennan Daniel J. EVP and CFO
Sold, plan not stated
$1.40M 30,000 at 46.66
11.7%
1 Mar 2023
Brennan Daniel J. EVP and CFO
Sold, plan not stated
$3.53M 75,610 at 46.64
22.8%
3 Feb 2023
Butcher Arthur C EVP& Grp Pres, MedSurg & APAC
Sold, plan not stated
$1.32M 27,000 at 48.74
53.6%
Sold half or more
13 Dec 2022
Fitzgerald Joseph Michael EVP & Group Pres, Cardiology
Sold, plan not stated
$3.79M 79,264 at 47.78
26.8%
9 Dec 2022
Mirviss Jeffrey B. EVP&Pres, Periph Intervent
Sold, plan not stated
$1.89M 41,032 at 46.15
29.2%
Showing 1–50 of 99. Page 1 of 2 Older →