Castagna Michael
Chief Executive Officer
Castagna Michael has filed 8 SEC Form 4 filings (17 transaction rows) across 1 company, with disclosures dating back to 2025. 8 of those filings fall inside the rolling window. Most recent filing: Jul 18, 2026.
On the most recent filing, Castagna Michael is listed as Chief Executive Officer at MANNKIND CORP. Inside the rolling window, Castagna Michael reported 1 open-market purchase totaling $259K in MNKD and 4 open-market sales totaling $1.2M in MNKD. The largest disclosed transaction in the window is a sale of 107,920 MNKD shares on Dec 2, 2025, worth $601K.
Companies traded
Other insiders at MNKD
Insider Buying
$259K
reported purchases (SEC code P)
Insider Selling
$1.2M
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Castagna Michael made?
Castagna Michael has filed 8 SEC Form 4 filings (17 transaction rows) across 1 company since 2025.
Which companies does Castagna Michael trade?
Castagna Michael has filed SEC Form 4 disclosures for 1 company, including MNKD.
When was Castagna Michael's most recent SEC Form 4 filing?
Castagna Michael's most recent SEC Form 4 filing on Tracefour is dated Jul 18, 2026.
What is Castagna Michael's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Castagna Michael is listed as Chief Executive Officer.
What is Castagna Michael's total buy and sell value in the current window?
Inside the rolling retention window, Castagna Michael bought $259K and sold $1.2M based on SEC Form 4 filings.
What was Castagna Michael's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 107,920 MNKD shares on 2025-12-02, worth $601K, per SEC Form 4 filings.