InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (6 ops.)
Insider track record
CFODisclosed buys
0
Disclosed sells
6
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Explore the detailed record of transactions filed by Peters William J, Chief Financial Officer. Director active across 2 companies, notably Amphastar Pharmaceuticals, Inc.. Aggregated, 48 reports have been logged. Split: 0 buy · 6 sells. Total volume traded: €1m. History available since 19 May 2021. The latest transaction was disclosed on 7 August 2026 (Levée d'options). Regulator: SEC (Form 4). All data is accessible without signup.
Companies and markets linked to Peters William J
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Declarations48 total
5,053 shares@ US$19.79Common StockSEC:0001263136-26-000012:0
8,180 shares@ US$22.48Common StockSEC:0001263136-26-000012:1
1,973 shares@ US$18.180.9% of flowCommon StockSEC:0001263136-26-000010:0
58,693 shares0Common StockSEC:0001263136-26-000008:0
2,146 shares@ US$19.340.0029% mcap1.1% of flowCommon StockSEC:0001263136-26-000006:0
1,744 shares@ US$19.960.9% of flowCommon StockSEC:0001263136-26-000003:0
273 shares@ US$24.790.2% of flowCommon StockSEC:0001415889-25-013821:0
1,968 shares@ US$26.661.4% of flowCommon StockSEC:0001415889-25-008497:0
36,747 shares0Common StockSEC:0001415889-25-007791:0
2,141 shares@ US$28.321.7% of flowCommon StockSEC:0001415889-25-007542:0
7,490 shares@ US$13.352.9% of flowCommon StockSEC:0001415889-25-007241:0
7,426 shares@ US$13.032.6% of flowCommon StockSEC:0001415889-24-026465:0
10,282 shares@ US$20.235.8% of flowCommon StockSEC:0001415889-24-020626:0
2,961 shares@ US$40.84673.4% of flowCommon StockSEC:0001415889-24-018417:0
387 shares@ US$43.480.5% of flowCommon StockSEC:0001415889-24-014009:0
2,285 shares@ US$43.052.7% of flowCommon StockSEC:0001415889-24-008592:0
8,826 shares@ US$11.332.8% of flowCommon StockSEC:0001415889-24-007367:0
19,440 shares0Common StockSEC:0001415889-24-007087:0
21,250 shares@ US$20.2312.0% of flowCommon StockSEC:0001104659-23-119090:0
10,000 shares@ US$19.795.5% of flowCommon StockSEC:0001104659-23-099294:0
36,868 shares@ US$19.7920.0% of flowCommon StockSEC:0001104659-23-072866:0
11,000 shares@ US$13.354.1% of flowCommon StockSEC:0001104659-23-068098:0
10,500 shares@ US$13.353.9% of flowCommon StockSEC:0001104659-23-063261:0
5,632 shares@ US$13.352.1% of flowCommon StockSEC:0001104659-23-046897:0
5,632 shares@ US$42.356.5% of flowCommon StockSEC:0001104659-23-046897:1
25 of 48 declarations
About Peters William J
PETERS WILLIAM J is Directeur Financier at Amphastar Pharmaceuticals, Inc., where he is also CFO, EVP & TREASURER. He has 46 filings in total, and across the sampled recent filings between 2021-05-20 and 2026-03-17, the sell amount is EUR 855817 and the most frequent transaction nature is Levée d'options.
