Loading
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (7 ops.)
Latest filing published 23 Sept 2026 for Amphastar Pharmaceuticals, Inc., €90k. Read the official filing
Filing timeline
BuySaleWilliam J. Peters
Insider track record
Disclosed buys
0
Disclosed sells
7
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
William J. Peters: trading record in brief
William J. Peters, listed as finance chief, appears in our data through filings on Amphastar Pharmaceuticals, Inc. shares, published by SEC (Form 4). Over a trading history stretching from 19 May 2021 to 21 September 2026, the count stands at 49 filings.
No open-market purchase appears, only 7 sales worth €1.1M. Besides market trades, the filings include 15 share grants and 27 option exercises. 2026 to date brings no purchases and 2 sales.
The record was last updated on 23 September 2026 with an open-market sale (€90k) in Amphastar Pharmaceuticals, Inc. Typically, a trade is published a median of 2 days after it takes place. The legal deadline for a Form 4 is two business days after the transaction. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Companies and markets linked to William J. Peters
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations49 total
4,139 shares@ US$25.00Common StockSEC:0001263136-26-000014:0
8,180 shares@ US$22.480.020% mcap4.2% of flowCommon StockSEC:0001263136-26-000012:1
5,053 shares@ US$19.790.011% mcap2.3% of flowCommon StockSEC:0001263136-26-000012:0
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$19.340.0047% 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
25 of 49 declarations
