Insider trading

Period: 120 months Stock: BSX Role: CEO × + 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.

24 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.

24 decisions over 120 months Remove this filter
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.

24 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.

24 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.
24 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
24 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.

24 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)
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 Apr 2025
Mahoney Michael F Chairman, President & CEO
Sold on a plan
$16.45M 164,442 at 100.01
9.3%
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)
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)
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
7 Nov 2022
Mahoney Michael F Chairman, President & CEO
Sold, plan not stated
$5.28M 125,827 at 41.97
6.6%
3 Oct 2022
Mahoney Michael F Chairman, President & CEO
Sold, plan not stated
$4.95M 125,827 at 39.34
6.6%
6 Sep 2022
Mahoney Michael F Chairman, President & CEO
Sold, plan not stated
$5.09M 125,828 at 40.49
6.6%
8 Aug 2022
Mahoney Michael F Chairman, President & CEO
Sold, plan not stated
$5.15M 125,828 at 40.97
5.6%
1 Nov 2021
Mahoney Michael F Chairman, President & CEO
Sold, plan not stated
$8.66M 201,042 at 43.05
8.8%
4 Oct 2021
Mahoney Michael F Chairman, President & CEO
Sold, plan not stated 2×
$8.63M 201,042 at 42.92
8.8%
7 Sep 2021
Mahoney Michael F Chairman, President & CEO
Sold, plan not stated
$8.96M 201,041 at 44.57
8.8%
2 Aug 2021
Mahoney Michael F Chairman, President & CEO
Sold, plan not stated
$9.19M 201,043 at 45.74
8.8%
6 Jul 2021
Mahoney Michael F Chairman, President & CEO
Sold, plan not stated
$8.73M 201,041 at 43.41
8.8%
3 Nov 2020
Mahoney Michael F Chairman, President & CEO
Sold, plan not stated
$9.09M 259,207 at 35.06
11.7%
1 Nov 2018
Mahoney Michael F Chairman, President & CEO
Sold, plan not stated
$4.24M 116,666 at 36.35
6.1%
1 Oct 2018
Mahoney Michael F Chairman, President & CEO
Sold, plan not stated
$4.53M 116,666 at 38.80
5.8%
10 Sep 2018
Mahoney Michael F Chairman, President & CEO
Sold, plan not stated
$4.19M 116,666 at 35.88
5.5%
Showing 1–24 of 24.