Petersen Floyd F.
SEC Form 4 insider trading activity
Petersen Floyd F. has filed 5 SEC Form 4 filings (7 transaction rows) across 1 company, with disclosures dating back to 2025. 3 of those filings fall inside the rolling window. Most recent filing: Dec 15, 2025.
On the most recent filing, Petersen Floyd F. is listed as Director at Amphastar Pharmaceuticals, Inc. Inside the rolling window, Petersen Floyd F. reported no open-market purchases and 4 open-market sales totaling $562K in AMPH. The largest disclosed transaction in the window is a sale of 16,679 AMPH shares on Nov 13, 2025, worth $442K.
Companies traded
Other insiders at AMPH
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$562K
reported sales (SEC code S)
Companies
1
in the rolling window
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
Frequently asked questions
How many SEC Form 4 filings has Petersen Floyd F. made?
Petersen Floyd F. has filed 5 SEC Form 4 filings (7 transaction rows) across 1 company since 2025.
Which companies does Petersen Floyd F. trade?
Petersen Floyd F. has filed SEC Form 4 disclosures for 1 company, including AMPH.
When was Petersen Floyd F.'s most recent SEC Form 4 filing?
Petersen Floyd F.'s most recent SEC Form 4 filing on Tracefour is dated Dec 15, 2025.
What is Petersen Floyd F.'s total buy and sell value in the current window?
Inside the rolling retention window, Petersen Floyd F. bought $0 and sold $562K based on SEC Form 4 filings.
What was Petersen Floyd F.'s largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 16,679 AMPH shares on 2025-11-13, worth $442K, per SEC Form 4 filings.