InsiderDirector
Floyd F. Petersen Insider Trading Activity
Every SEC Form 4 transaction reported by Floyd F. Petersen, sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Is Floyd F. Petersen buying or selling?
Floyd F. Petersen reported 0 open-market buys ($0) and 61 sells ($3.5M) across 61 Form 4 filings at 1 company — a net selling position of $3.5M.
Source: SEC EDGAR Form 4
What stands out
- All 61 of Floyd F. Petersen's Form 4 filings are for one company, Amphastar Pharmaceuticals, Inc. (AMPH).
- The most recent Form 4 was accepted on Dec 15, 2025 (10 months ago).
- In the last 12 months: no open-market purchases and 3 sales ($562.0K).
- The largest open-market sale in the last 12 months was $441.8K of Amphastar Pharmaceuticals, Inc. (AMPH) on Nov 17, 2025. SEC ↗
Key Statistics (as of Dec 15, 2025)
Total Form 4 filings
61
SEC EDGAR
Companies
1
Buys (0)
$0
Sells (61)
$3.5M
Insider sentiment
Net sellingNet insider flow of $3.5M in net selling, filed between Sep 18, 2019 – Dec 15, 2025.
Companies Floyd F. Petersen files for
| # | Company | Form 4 filings |
|---|---|---|
| 1 | AMPHAmphastar Pharmaceuticals, Inc. | 61 |
Recent Floyd F. Petersen transactions
| Date | Ticker | Role | Type | Shares | Value | Filing |
|---|---|---|---|---|---|---|
| Dec 15, 2025 | AMPH | Director | Sale | 4.2K | $107.5K | SEC ↗ |
| Nov 17, 2025 | AMPH | Director | Sale | 16.7K | $441.8K | SEC ↗ |
| Nov 5, 2025 | AMPH | Director | Sale | 500 | $12.6K | SEC ↗ |
| Oct 2, 2025 | AMPH | Director | Sale | 500 | $13.6K | SEC ↗ |
| Sep 3, 2025 | AMPH | Director | Sale | 500 | $15.5K | SEC ↗ |
| Aug 4, 2025 | AMPH | Director | Sale | 500 | $10.4K | SEC ↗ |
| Jul 3, 2025 | AMPH | Director | Sale | 500 | $11.7K | SEC ↗ |
| Jun 4, 2025 | AMPH | Director | Sale | 500 | $12.8K | SEC ↗ |
| May 3, 2025 | AMPH | Director | Sale | 500 | $12.0K | SEC ↗ |
| Apr 2, 2025 | AMPH | Director | Sale | 500 | $14.2K | SEC ↗ |
| Mar 7, 2025 | AMPH | Director | Sale | 1.0K | $28.0K | SEC ↗ |
| Sep 6, 2024 | AMPH | Director | Sale | 3.0K | $139.4K | SEC ↗ |
| Jun 11, 2024 | AMPH | Director | Sale | 3.0K | $124.2K | SEC ↗ |
| Jun 5, 2024 | AMPH | Director | Sale | 500 | $21.3K | SEC ↗ |
| May 2, 2024 | AMPH | Director | Sale | 500 | $20.8K | SEC ↗ |
| Apr 3, 2024 | AMPH | Director | Sale | 500 | $21.7K | SEC ↗ |
| Mar 5, 2024 | AMPH | Director | Sale | 500 | $22.8K | SEC ↗ |
| Feb 3, 2024 | AMPH | Director | Sale | 500 | $26.5K | SEC ↗ |
| Jan 4, 2024 | AMPH | Director | Sale | 500 | $30.7K | SEC ↗ |
| Dec 5, 2023 | AMPH | Director | Sale | 500 | $29.0K | SEC ↗ |
| Nov 3, 2023 | AMPH | Director | Sale | 500 | $22.7K | SEC ↗ |
| Oct 3, 2023 | AMPH | Director | Sale | 500 | $22.9K | SEC ↗ |
| May 18, 2023 | AMPH | Director | Sale | 5.0K | $215.7K | SEC ↗ |
| Apr 4, 2023 | AMPH | Director | Sale | 491 | $18.5K | SEC ↗ |
| Mar 3, 2023 | AMPH | Director | Sale | 500 | $18.3K | SEC ↗ |
Showing the 25 most recent filings of 61. Screen every filing.
Floyd F. Petersen insider trading FAQ
Is Floyd F. Petersen buying or selling?
Across 61 SEC Form 4 filings, Floyd F. Petersen reported 0 open-market purchases totaling $0 and 61 sales totaling $3.5M — a net selling position of $3.5M.
Which companies does Floyd F. Petersen file Form 4s for?
Floyd F. Petersen has reported insider transactions at 1 company, most often Amphastar Pharmaceuticals, Inc. (AMPH).
How far back does Floyd F. Petersen's filing history go?
Trabud holds Floyd F. Petersen's SEC Form 4 filings from Sep 18, 2019 – Dec 15, 2025, sourced directly from SEC EDGAR.
Where does Trabud get Floyd F. Petersen's insider trading data?
Directly from SEC EDGAR Form 4 filings. Every transaction on this page is a real filing accepted by the SEC, updated as new filings arrive.
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