Douglas K. Mellinger

Douglas K. Mellinger discloses dealings in MARA Holdings, Inc. to SEC (Form 4). We count 22 filings; the first trade dates from 19 December 2022 and the latest from 13 February 2026.

In open-market terms, that means 3 purchases worth €98k on one side and 14 sales worth €304k on the other. The net balance comes to €206k on the selling side. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Besides market trades, the filings include 4 share grants.

Half of the purchases are above €31k and half below.

Most recently, on 13 February 2026, the filings show a share grant in MARA Holdings, Inc. The last insider purchase was made public on 30 December 2022, 1,388 days ago. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. The legal deadline for a Form 4 is two business days after the transaction. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.