Insider trading

Period: 120 months Stock: AMPX + 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.

101 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.

101 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.

101 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.

101 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.
101 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
101 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.

101 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
4 Sep 2024
Amprius, Inc. 10% owner
Sold at will
$12.59K 13,255 at 0.95
0.0%
Not planned
3 Sep 2024
MIRRO JUSTIN E Director · indirect
Sold at will 2×
$134.84K 135,000 at 1.00
8.2%
Not planned
3 Sep 2024
Amprius, Inc. 10% owner
Sold at will
$6.30K 6,300 at 1.00
0.0%
Not planned
21 Aug 2024
Sun Kang Chief Executive Officer
Sold at will
$34.67K 33,333 at 1.04
2.4%
Not planned
21 Aug 2024
Bornstein Jonathan President of Amprius Lab
Sold at will
$19.39K 18,644 at 1.04
1.2%
Not planned
21 Aug 2024
Wallach Sandra Chief Financial Officer
Sold at will
$18.31K 17,606 at 1.04
2.4%
Not planned
21 Aug 2024
Stefan Constantin Ionel Chief Technology Officer
Sold at will
$9.15K 8,800 at 1.04
2.2%
Not planned
14 Jun 2024
MIRRO JUSTIN E Director · indirect
Sold at will 2×
$294.06K 260,000 at 1.13
15.1%
Not planned
13 Jun 2024
MIRRO JUSTIN E Director · indirect
Sold at will 2×
$315.65K 260,000 at 1.21
13.6%
Not planned
12 Jun 2024
MIRRO JUSTIN E Director · indirect
Sold at will 2×
$363.50K 280,000 at 1.30
14.0%
Not planned
22 May 2024
Sun Kang See Remarks
Sold at will
$21.17K 15,611 at 1.36
1.1%
Not planned
22 May 2024
Bornstein Jonathan President of Amprius Lab
Sold at will
$11.84K 8,731 at 1.36
0.6%
Not planned
22 May 2024
Wallach Sandra Chief Financial Officer
Sold at will
$11.18K 8,245 at 1.36
1.1%
Not planned
22 May 2024
Stefan Constantin Ionel Chief Technology Officer
Sold at will
$5.59K 4,121 at 1.36
1.0%
Not planned
21 May 2024
Sun Kang See Remarks
Sold at will
$26.52K 19,973 at 1.33
1.4%
Not planned
21 May 2024
Bornstein Jonathan President of Amprius Lab
Sold at will
$14.83K 11,171 at 1.33
0.7%
Not planned
21 May 2024
Wallach Sandra Chief Financial Officer
Sold at will
$14.00K 10,549 at 1.33
1.4%
Not planned
21 May 2024
Stefan Constantin Ionel Chief Technology Officer
Sold at will
$7.00K 5,272 at 1.33
1.3%
Not planned
2 Apr 2024
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$299.61K 125,983 at 2.38
18.4%
Planned (10b5-1)
6 Mar 2024
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$111.58K 40,200 at 2.78
100%
Sold half or more
5 Mar 2024
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$320.46K 109,800 at 2.92
100%
Sold half or more
6 Feb 2024
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$663.81K 150,000 at 4.43
100%
Sold half or more
2 Jan 2024
Bornstein Jonathan President of Amprius Lab
Sold on a plan 2×
$666.26K 150,000 at 4.44
100%
Sold half or more
15 Dec 2023
Amprius, Inc. 10% owner
Sold at will
$353.60K 100,000 at 3.54
0.2%
Not planned
14 Dec 2023
MIRRO JUSTIN E Director · indirect
Sold at will 2×
$907.45K 255,000 at 3.56
12.5%
Not planned
14 Dec 2023
Amprius, Inc. 10% owner
Sold at will
$354.80K 100,000 at 3.55
0.2%
Not planned
13 Dec 2023
Amprius, Inc. 10% owner
Sold at will
$361.69K 100,000 at 3.62
0.2%
Not planned
13 Dec 2023
MIRRO JUSTIN E Director · indirect
Sold at will 2×
$331.12K 90,000 at 3.68
4.6%
Not planned
12 Dec 2023
MIRRO JUSTIN E Director · indirect
Sold at will 2×
$228.79K 60,000 at 3.81
3.1%
Not planned
7 Dec 2023
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$211.34K 54,477 at 3.88
100%
Sold half or more
7 Dec 2023
MIRRO JUSTIN E Director · indirect
Sold at will 2×
$116.45K 30,000 at 3.88
1.5%
Not planned
6 Dec 2023
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$192.24K 47,767 at 4.02
100%
Sold half or more
6 Dec 2023
MIRRO JUSTIN E Director · indirect
Sold at will 2×
$121.42K 30,000 at 4.05
1.5%
Not planned
5 Dec 2023
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$204.50K 47,756 at 4.28
100%
Sold half or more
5 Dec 2023
MIRRO JUSTIN E Director · indirect
Sold at will 2×
$129.72K 30,000 at 4.32
1.5%
Not planned
30 Nov 2023
MIRRO JUSTIN E Director · indirect
Sold at will 2×
$188.36K 45,000 at 4.19
2.3%
Not planned
29 Nov 2023
MIRRO JUSTIN E Director · indirect
Sold at will 2×
$240.45K 60,000 at 4.01
3.0%
Not planned
28 Nov 2023
MIRRO JUSTIN E Director · indirect
Sold at will 2×
$166.94K 45,000 at 3.71
2.2%
Not planned
20 Nov 2023
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$106.11K 27,631 at 3.84
100%
Sold half or more
9 Nov 2023
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$139.65K 49,508 at 2.82
100%
Sold half or more
8 Nov 2023
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$146.66K 48,052 at 3.05
100%
Sold half or more
7 Nov 2023
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$80.42K 24,809 at 3.24
100%
Sold half or more
12 Oct 2023
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$89.69K 22,969 at 3.90
100%
Sold half or more
11 Oct 2023
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$236.16K 56,702 at 4.16
100%
Sold half or more
10 Oct 2023
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$306.54K 70,329 at 4.36
100%
Sold half or more
20 Sep 2023
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$27.40K 6,484 at 4.23
100%
Sold half or more
19 Sep 2023
Bornstein Jonathan President of Amprius Lab
Sold on a plan
$627.16K 143,516 at 4.37
100%
Sold half or more
15 Sep 2023
Stefan Constantin Ionel Chief Technology Officer
Sold at will
$130.73K 33,630 at 3.89
53.0%
Sold half or more
14 Sep 2023
Stefan Constantin Ionel Chief Technology Officer
Sold at will
$169.49K 46,370 at 3.66
42.2%
Not planned
15 Jun 2023
MIRRO JUSTIN E Director · indirect
Sold at will
$540.13K 61,000 at 8.85
2.4%
Not planned
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