Insider trading

Period: 120 months Stock: MPTI Plan: Not on a plan × + 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.

44 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.

44 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.

44 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.

44 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.
44 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
44 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.

44 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
11 Aug 2026
Biles Linda M Executive VP - Finance
Bought
$103.59K 1,218 at 85.05
4.4%
First buy on file
4 May 2026
Pforr Cameron CEO and CFO
Sold at will
$56.10K 840 at 66.78
3.0%
Not planned
4 May 2026
Sold at will
$24.11K 361 at 66.78
2.5%
Not planned
4 May 2026
Biles Linda M Executive VP - Finance
Sold at will
$20.43K 306 at 66.78
1.1%
Not planned
14 Apr 2026
Biles Linda M Executive VP - Finance
Sold at will
$0.00 720 at 0.00
2.4%
Not planned
27 Jun 2025
Bought
$40.50K 1,000 at 40.50
10.0%
First buy on file
14 Nov 2024
GABELLI MARIO J 10% owner
Sold at will
$450.82K 7,500 at 60.11
5.6%
Not planned
13 Nov 2024
GABELLI MARIO J 10% owner
Sold at will
$78.87K 1,500 at 52.58
1.1%
Not planned
14 Oct 2024
Arteaga Ivan Director
Sold at will
$81.06K 1,600 at 50.67
81.5%
Sold half or more
11 Oct 2024
Arteaga Ivan Director
Sold at will
$19.77K 400 at 49.41
16.9%
Not planned
30 Sep 2024
GABELLI MARIO J 10% owner
Sold at will
$7.11K 171 at 41.60
0.1%
Not planned
9 Sep 2024
GABELLI MARIO J 10% owner · indirect
Sold at will
$26.79K 800 at 33.49
0.5%
Not planned
25 Jun 2024
GABELLI MARIO J 10% owner · indirect
Sold at will
$6.68K 200 at 33.38
0.1%
Not planned
24 Jun 2024
GABELLI MARIO J 10% owner · indirect
Sold at will
$22.30K 700 at 31.85
0.4%
Not planned
13 Jun 2024
GABELLI MARIO J 10% owner
Sold at will
$17.85K 500 at 35.70
0.3%
Not planned
9 Apr 2024
GABELLI MARIO J 10% owner
Sold at will
$13.27K 500 at 26.55
0.3%
Not planned
10 Jan 2024
EMG MADONNA EDUCATIONAL FOUNDATION INC. Officer is Director of Issuer
Sold at will
$1.16M 29,044 at 39.99
42.0%
Not planned
10 Jan 2024
Sold at will
$190.76K 4,710 at 40.50
32.0%
Not planned
9 Jan 2024
Sold at will
$200.00K 5,000 at 40.00
25.4%
Not planned
5 Jan 2024
EMG MADONNA EDUCATIONAL FOUNDATION INC. Officer is Director of Issuer
Sold at will
$953.82K 27,368 at 34.85
28.4%
Not planned
4 Jan 2024
EMG MADONNA EDUCATIONAL FOUNDATION INC. Officer is Director of Issuer
Sold at will
$1.43M 37,797 at 37.86
100%
Sold half or more
3 Jan 2024
EMG MADONNA EDUCATIONAL FOUNDATION INC. Officer is Director of Issuer
Sold at will
$1.74M 44,201 at 39.39
31.4%
Not planned
22 Dec 2023
Sold at will
$338.95K 10,000 at 33.89
6.6%
Not planned
21 Dec 2023
EMG MADONNA EDUCATIONAL FOUNDATION INC. Officer is Director of Issuer
Sold at will
$76.71K 2,300 at 33.35
5.7%
Not planned
15 Dec 2023
Sold at will
$25.94K 931 at 27.87
0.6%
Not planned
14 Dec 2023
Sold at will
$698.86K 25,257 at 27.67
14.3%
Not planned
11 Dec 2023
FERRANTINO MICHAEL J JR Chief Executive Officer
Sold at will
$109.96K 3,500 at 31.42
15.1%
Not planned
8 Dec 2023
Sold at will
$194.14K 6,130 at 31.67
3.3%
Not planned
6 Dec 2023
Sold at will
$359.44K 10,287 at 34.94
5.3%
Not planned
5 Dec 2023
Sold at will
$990.13K 27,895 at 35.50
12.6%
Not planned
5 Dec 2023
Arteaga Ivan Director
Sold at will
$72.26K 2,000 at 36.13
50.0%
Sold half or more
4 Dec 2023
Sold at will
$2.13M 58,542 at 36.40
20.9%
Not planned
4 Dec 2023
Arteaga Ivan Director
Sold at will
$257.50K 7,274 at 35.40
64.5%
Sold half or more
1 Dec 2023
Sold at will
$654.73K 20,000 at 32.74
6.7%
Not planned
30 Nov 2023
Sold at will
$317.50K 9,319 at 34.07
3.0%
Not planned
29 Nov 2023
Sold at will
$157.22K 4,759 at 33.04
1.5%
Not planned
22 Nov 2023
FERRANTINO MICHAEL J JR Chief Executive Officer
Bought
$1.88K 50 at 37.50
0.2%
First buy on file
20 Nov 2023
Tivy James William Chief Financial Officer
Sold at will
$38.01K 1,000 at 38.01
3.8%
Not planned
16 Nov 2023
Tivy James William Chief Financial Officer
Sold at will 2×
$134.26K 4,000 at 33.57
13.3%
Not planned
13 Sep 2023
GABELLI MARIO J 10% owner
Bought
$3.77K 200 at 18.83
0.1%
First buy on file
23 Aug 2023
GABELLI MARIO J 10% owner · indirect
Sold at will
$7.77K 468 at 16.61
0.2%
Not planned
14 Apr 2023
GABELLI MARIO J 10% owner
Sold at will
$5.80K 500 at 11.60
0.2%
Not planned
28 Dec 2022
GABELLI MARIO J 10% owner
Sold, plan not stated
$81.08K 9,000 at 9.01
3.6%
1 Dec 2022
Tivy James William Chief Financial Officer
Bought
$24.38K 2,500 at 9.75
8.3%
First buy on file
Showing 1–44 of 44.