Insider trading

Period: 120 months Stock: AMPL 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.

51 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.

51 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.

51 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.

51 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.
51 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
51 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.

51 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
2 Oct 2026
Skates Spenser CEO and President · indirect
Sold on a plan
$1.02M 70,087 at 14.52
100%
Sold half or more
1 Oct 2026
Skates Spenser CEO and President · indirect
Sold on a plan
$51.14K 3,539 at 14.45
100%
Sold half or more
30 Sep 2026
Skates Spenser CEO and President · indirect
Sold on a plan
$19.86K 1,374 at 14.45
100%
Sold half or more
10 Sep 2026
Skates Spenser CEO and President · indirect
Sold on a plan
$2.28M 185,000 at 12.30
100%
Sold half or more
26 Dec 2025
Skates Spenser Chief Executive Officer · indirect
Sold on a plan
$1.20K 100 at 12.00
100%
Sold half or more
24 Dec 2025
Skates Spenser Chief Executive Officer · indirect
Sold on a plan
$513.43K 42,743 at 12.01
100%
Sold half or more
11 Nov 2025
Skates Spenser Chief Executive Officer · indirect
Sold on a plan
$4.40M 400,000 at 10.99
100%
Sold half or more
5 Jul 2023
Thakker Dharmesh 10% owner · indirect
Sold at will
$688.50K 63,515 at 10.84
100%
Sold half or more
8 Jun 2023
SC US (TTGP), LTD. 10% owner · indirect
Sold at will 4×
$169.17K 16,816 at 10.06
100%
Sold half or more
8 Jun 2023
Grady Patrick W Director · indirect
Sold at will 2×
$84.58K 8,408 at 10.06
100%
Sold half or more
7 Jun 2023
SC US (TTGP), LTD. 10% owner · indirect
Sold at will 4×
$5.21M 517,764 at 10.06
100%
Sold half or more
7 Jun 2023
Grady Patrick W Director · indirect
Sold at will 2×
$2.60M 258,882 at 10.06
100%
Sold half or more
6 Jun 2023
SC US (TTGP), LTD. 10% owner · indirect
Sold at will 4×
$1.15M 113,174 at 10.15
100%
Sold half or more
6 Jun 2023
Grady Patrick W Director · indirect
Sold at will 2×
$574.36K 56,587 at 10.15
100%
Sold half or more
5 Jun 2023
SC US (TTGP), LTD. 10% owner · indirect
Sold at will 4×
$906.79K 93,580 at 9.69
100%
Sold half or more
5 Jun 2023
Grady Patrick W Director · indirect
Sold at will 2×
$453.40K 46,790 at 9.69
100%
Sold half or more
2 Jun 2023
SC US (TTGP), LTD. 10% owner · indirect
Sold at will 4×
$1.01M 103,796 at 9.74
100%
Sold half or more
2 Jun 2023
Grady Patrick W Director · indirect
Sold at will 2×
$505.49K 51,898 at 9.74
100%
Sold half or more
1 Jun 2023
SC US (TTGP), LTD. 10% owner · indirect
Sold at will 4×
$1.53M 160,032 at 9.54
100%
Sold half or more
1 Jun 2023
Grady Patrick W Director · indirect
Sold at will 2×
$763.35K 80,016 at 9.54
100%
Sold half or more
10 Aug 2022
Puttagunta Chetan 10% owner
Sold, plan not stated
$171.76K 9,538 at 18.01
100%
Sold half or more
9 Aug 2022
Hu An-Yen 10% owner · indirect
Sold, plan not stated 6×
$120.99K 7,133 at 16.96
100%
Sold half or more
9 Aug 2022
GURLEY J WILLIAM Director · indirect
Sold, plan not stated 2×
$105.25K 6,014 at 17.50
100%
Sold half or more
30 Dec 2021
Johnson Jennifer L. See remarks
Sold, plan not stated 4×
$1.36M 24,843 at 54.76
100%
Sold half or more
30 Dec 2021
Vuong Hoang Chief Financial Officer · indirect
Sold, plan not stated
$20.21K 372 at 54.32
100%
Sold half or more
22 Dec 2021
Johnson Jennifer L. See remarks
Sold, plan not stated 2×
$2.69M 49,687 at 54.10
100%
Sold half or more
13 Dec 2021
TOBIN SCOTT R 10% owner · indirect
Sold, plan not stated 5×
$1.49M 28,316 at 52.52
100%
Sold half or more
7 Dec 2021
Elhafed Morad 10% owner
Sold, plan not stated
$1.14M 18,316 at 62.26
100%
Sold half or more
30 Nov 2021
Hu An-Yen 10% owner · indirect
Sold, plan not stated
$102.20K 1,500 at 68.13
86.2%
Sold half or more
19 Nov 2021
Feldman Jesse 10% owner · indirect
Sold, plan not stated
$220.23K 3,194 at 68.95
100%
Sold half or more
16 Nov 2021
GURLEY J WILLIAM 10% owner · indirect
Sold, plan not stated 10×
$10.82M 154,140 at 70.17
100%
Sold half or more
15 Nov 2021
SPURLOCK STEVEN M 10% owner · indirect
Sold, plan not stated 30×
$3.23M 45,260 at 71.27
100%
Sold half or more
12 Nov 2021
Heinz Matthew Chief Revenue Officer
Sold, plan not stated 4×
$9.91M 135,000 at 73.40
75.3%
Sold half or more
12 Nov 2021
Vuong Hoang Chief Financial Officer
Sold, plan not stated 2×
$7.35M 100,000 at 73.48
80.6%
Sold half or more
12 Nov 2021
Sold, plan not stated
$1.87M 25,546 at 73.35
100%
Sold half or more
12 Nov 2021
Sold, plan not stated
$1.87M 25,546 at 73.35
100%
Sold half or more
12 Nov 2021
Battery Management Corp. 10% owner · indirect
Sold, plan not stated
$641.23K 8,742 at 73.35
100%
Sold half or more
12 Nov 2021
Battery Partners XI, LLC 10% owner · indirect
Sold, plan not stated
$641.23K 8,742 at 73.35
100%
Sold half or more
4 Oct 2021
GURLEY J WILLIAM 10% owner · indirect
Sold, plan not stated 2×
$5.57M 103,090 at 54.05
100%
Sold half or more
1 Oct 2021
Johnson Jennifer L. See remarks
Sold, plan not stated 4×
$4.27M 80,773 at 52.92
100%
Sold half or more
1 Oct 2021
Skates Spenser Chief Executive Officer
Sold, plan not stated
$1.36M 25,000 at 54.23
100%
Sold half or more
30 Sep 2021
Johnson Jennifer L. See remarks
Sold, plan not stated 2×
$13.49M 250,477 at 53.85
100%
Sold half or more
28 Sep 2021
Sold, plan not stated 3×
$51.50M 1,000,000 at 51.50
65.5%
Sold half or more
28 Sep 2021
Vishria Eric Director · indirect
Sold, plan not stated 3×
$51.50M 1,000,000 at 51.50
65.5%
Sold half or more
28 Sep 2021
SPURLOCK STEVEN M 10% owner · indirect
Sold, plan not stated 3×
$51.50M 1,000,000 at 51.50
65.5%
Sold half or more
28 Sep 2021
Skates Spenser Chief Executive Officer
Sold, plan not stated 2×
$28.80M 575,000 at 50.09
95.8%
Sold half or more
28 Sep 2021
Sold, plan not stated 8×
$18.55M 359,861 at 51.55
89.1%
Sold half or more
28 Sep 2021
Sold, plan not stated 8×
$18.55M 359,861 at 51.55
89.1%
Sold half or more
28 Sep 2021
Liu Curtis Chief Technology Officer · indirect
Sold, plan not stated 2×
$15.17M 300,772 at 50.43
79.2%
Sold half or more
28 Sep 2021
Vuong Hoang Chief Financial Officer
Sold, plan not stated 3×
$10.15M 200,000 at 50.75
89.4%
Sold half or more
Showing 1–50 of 51. Page 1 of 2 Older →