Loading
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (12 ops.)
Latest filing published 25 Aug 2026 for Amprius Technologies, Inc., €262k. Read the official filing
Filing timeline
BuySaleConstantin Ionel Stefan
Insider track record
Disclosed buys
0
Disclosed sells
12
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Constantin Ionel Stefan: trading record in brief
This profile gathers the share dealings of Constantin Ionel Stefan in Amprius Technologies, Inc., where the filings describe the role as senior executive. We count 22 filings; the first trade dates from 14 December 2022 and the latest from 21 August 2026.
The open-market record consists of 12 sales worth €1.5M, with no purchase. Other entries cover 4 share grants and 6 option exercises. In 2026 alone, the filings show no purchases and 4 sales.
The latest filing, published on 25 August 2026, reports an open-market sale of €262k in Amprius Technologies, Inc. Filings reach the SEC (Form 4) feed a median of 3 days after the trade. Section 16 rules allow two business days to file each Form 4. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.
Companies and markets linked to Constantin Ionel Stefan
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations22 total
29,681 shares@ US$10.341Common stockSEC:0001940928-26-000024:0
3,208 shares@ US$17.19350.0035% mcap5.2% of flowCommon stockSEC:0001940928-26-000020:0
28,812 shares@ US$14.78840.027% mcap40.1% of flowCommon stockSEC:0001940928-26-000016:0
110,000 shares0Common stockSEC:0001940928-26-000012:0
25,366 shares@ US$10.155517.3% of flowCommon stockSEC:0001940928-26-000009:0
90 shares@ US$0.620.0000% mcap0.4% of flowCommon stockSEC:0001940928-26-000004:0
41,563 shares@ US$0.621.7% of flowCommon stockSEC:0001940928-26-000002:0
125,000 shares@ US$0.050.0004% mcap49.6% of flowCommon stockSEC:0001940928-25-000020:0
25,024 shares@ US$10.081323.9% of flowCommon stockSEC:0001940928-25-000018:0
19,159 shares@ US$6.816211.0% of flowCommon stockSEC:0001940928-25-000014:0
20,366 shares@ US$2.4324.8% of flowCommon stockSEC:0001940928-25-000009:0
461,540 shares0Common stockSEC:0001940928-25-000004:0
3,471 shares@ US$0.980.3% of flowCommon stockSEC:0001940928-25-000003:0
9,066 shares@ US$3.13323.0% of flowCommon stockSEC:0001940928-25-000002:0
8,575 shares@ US$1.96461.7% of flowCommon stockSEC:0001940928-24-000009:0
8,800 shares@ US$1.040.9% of flowCommon stockSEC:0001628280-24-038250:0
5,272 shares@ US$1.32760.7% of flowCommon stockSEC:0001940928-24-000003:0
374,570 shares0Common stockSEC:0001628280-24-011987:0
46,370 shares@ US$3.655290.2% of flowCommon stockSEC:0001940928-23-000011:0
80,000 shares@ US$0.050.4% of flowCommon stockSEC:0001940928-23-000008:0
209 shares@ US$7.200.2% of flowCommon stockSEC:0001940928-23-000002:0
30,000 shares@ US$0.050.2% of flowCommon stockSEC:0001940928-22-000002:0
22 of 22 declarations
