Insider trading

Period: 120 months Stock: MIRM Role: Directors × + Add filter Clear all
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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.

48 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.

48 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.

48 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.

48 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.
48 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
48 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.

48 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
1 Jun 2026
Ramasastry Saira Director
Sold at will
$397.70K 3,977 at 100.00
100%
Sold half or more
15 May 2026
Ramasastry Saira Director
Sold on a plan
$218.94K 2,000 at 109.47
100%
Sold half or more
15 Apr 2026
Ramasastry Saira Director
Sold on a plan
$193.80K 2,000 at 96.90
100%
Sold half or more
16 Mar 2026
Ramasastry Saira Director
Sold on a plan
$181.52K 2,000 at 90.76
100%
Sold half or more
13 Feb 2026
Ramasastry Saira Director
Sold on a plan
$204.18K 2,000 at 102.09
100%
Sold half or more
23 Jan 2026
Heron Patrick J Director · indirect
Bought
$9.00M 131,425 at 68.48
40.1%
Largest buy in 3 yrs
15 Jan 2026
Ramasastry Saira Director
Sold on a plan
$181.98K 2,000 at 90.99
100%
Sold half or more
22 Dec 2025
Ramasastry Saira Director
Sold on a plan
$400.00K 5,000 at 80.00
100%
Sold half or more
19 Dec 2025
GREY MICHAEL G Director
Sold on a plan
$3.90M 50,000 at 78.00
100%
Sold half or more
18 Dec 2025
Ramasastry Saira Director
Sold on a plan 2×
$139.46K 2,000 at 69.73
100%
Sold half or more
1 Dec 2025
GREY MICHAEL G Director
Sold on a plan
$3.70M 50,000 at 74.00
100%
Sold half or more
21 Nov 2025
GREY MICHAEL G Director
Sold on a plan
$3.50M 50,000 at 70.00
100%
Sold half or more
11 Sep 2025
Brege Laura Director
Sold at will 2×
$1.26M 17,000 at 74.40
52.0%
Sold half or more
8 Sep 2025
Ramasastry Saira Director
Sold at will
no price 17,000 shares
100%
Sold half or more
11 Jun 2025
Fairey William Director
Sold at will
$155.09K 3,203 at 48.42
56.2%
Sold half or more
3 Jun 2025
Ramasastry Saira Director
Sold at will
$114.35K 2,500 at 45.74
100%
Sold half or more
2 Jun 2025
Ramasastry Saira Director
Sold at will
$263.49K 5,703 at 46.20
100%
Sold half or more
17 Mar 2025
Heron Patrick J Director · indirect
Bought
$922.61 21 at 43.93
0.0%
14 Mar 2025
Heron Patrick J Director · indirect
Bought
$23.29K 528 at 44.11
0.3%
11 Mar 2025
Heron Patrick J Director · indirect
Bought
$42.16K 963 at 43.77
0.6%
10 Mar 2025
Heron Patrick J Director · indirect
Bought 2×
$57.36K 1,335 at 42.97
0.8%
7 Mar 2025
Heron Patrick J Director · indirect
Bought
$25.06K 580 at 43.21
0.4%
6 Mar 2025
Heron Patrick J Director · indirect
Bought
$58.60K 1,335 at 43.89
0.8%
5 Mar 2025
Heron Patrick J Director · indirect
Bought
$11.89K 267 at 44.55
0.2%
4 Mar 2025
Heron Patrick J Director · indirect
Bought 2×
$60.83K 1,335 at 45.57
0.8%
18 Sep 2024
Heron Patrick J Director · indirect
Bought
$4.30K 115 at 37.40
0.1%
6 Sep 2024
Heron Patrick J Director · indirect
Bought
$9.56K 230 at 41.58
0.1%
5 Jun 2024
Ramasastry Saira Director
Sold on a plan
$128.40K 5,000 at 25.68
100%
Sold half or more
9 Nov 2023
Heron Patrick J Director · indirect
Bought
$82.35K 2,910 at 28.30
1.8%
14 Sep 2023
GREY MICHAEL G Director
Sold at will
$454.91K 14,216 at 32.00
100%
Sold half or more
13 Sep 2023
Heron Patrick J Director · indirect
Bought
$81.42K 2,625 at 31.02
1.7%
13 Sep 2023
GREY MICHAEL G Director
Sold at will
$12.54K 392 at 32.00
100%
Sold half or more
12 Sep 2023
Heron Patrick J Director · indirect
Bought
$114.76K 3,750 at 30.60
2.5%
11 Sep 2023
Heron Patrick J Director · indirect
Bought
$142.03K 4,687 at 30.30
3.2%
31 Aug 2023
Heron Patrick J Director · indirect
Bought
$3.88M 147,991 at 26.25
opened
First buy on file
8 Jun 2023
GREY MICHAEL G Director
Sold on a plan
$423.63K 14,608 at 29.00
100%
Sold half or more
3 May 2023
GREY MICHAEL G Director
Sold on a plan
$409.02K 14,608 at 28.00
100%
Sold half or more
15 Nov 2022
O'Donnell Niall Director · indirect
Sold, plan not stated
$1.85M 93,770 at 19.69
5.5%
14 Nov 2022
O'Donnell Niall Director · indirect
Sold, plan not stated
$629.42K 32,109 at 19.60
1.8%
11 Nov 2022
O'Donnell Niall Director · indirect
Sold, plan not stated
$3.48M 174,121 at 19.99
9.1%
17 Sep 2019
Fischer Laurent Director
Bought
$15.44K 1,648 at 9.37
32.3%
First buy on file
16 Sep 2019
Fischer Laurent Director
Bought
$4.28K 452 at 9.47
9.7%
First buy on file
10 Sep 2019
Brege Laura Director
Bought
$112.20K 10,000 at 11.22
opened
First buy on file
10 Sep 2019
Fischer Laurent Director
Bought
$9.88K 960 at 10.29
26.0%
First buy on file
9 Sep 2019
Fischer Laurent Director
Bought 2×
$20.99K 1,970 at 10.66
115%
First buy on file
6 Sep 2019
Fischer Laurent Director
Bought
$18.43K 1,720 at 10.71
opened
First buy on file
22 Jul 2019
Heron Patrick J Director · indirect
Bought
$6.75M 450,000 at 15.00
14.4%
First buy on file
22 Jul 2019
O'Donnell Niall Director · indirect
Bought
$4.50M 300,000 at 15.00
18.5%
First buy on file
Showing 1–48 of 48.