O'Hara David Mark
SEC Form 4 insider trading activity
O'Hara David Mark has filed 3 SEC Form 4 filings (5 transaction rows) across 1 company, with disclosures dating back to 2026. 3 of those filings fall inside the rolling window. Most recent filing: Jul 2, 2026.
On the most recent filing, O'Hara David Mark is listed as Director at CADIZ INC. Inside the rolling window, O'Hara David Mark reported 1 open-market purchase totaling $508K in CDZI and no open-market sales.
Companies traded
Other insiders at CDZI
Insider Buying
$508K
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has O'Hara David Mark made?
O'Hara David Mark has filed 3 SEC Form 4 filings (5 transaction rows) across 1 company since 2026.
Which companies does O'Hara David Mark trade?
O'Hara David Mark has filed SEC Form 4 disclosures for 1 company, including CDZI.
When was O'Hara David Mark's most recent SEC Form 4 filing?
O'Hara David Mark's most recent SEC Form 4 filing on Tracefour is dated Jul 2, 2026.
What is O'Hara David Mark's total buy and sell value in the current window?
Inside the rolling retention window, O'Hara David Mark bought $508K and sold $0 based on SEC Form 4 filings.
What was O'Hara David Mark's largest disclosed transaction?
The largest disclosed transaction in the current window is a purchase of 110,865 CDZI shares on 2026-05-26, worth $508K, per SEC Form 4 filings.