Summary
Updated Aug 31, 2026
William Earl Cooper is Chief Financial Officer of EVERSPIN TECHNOLOGIES INC. (MRAM). 6 SEC Form 4 filings on record, most recently on 6 August 2026. Most recent open-market trade: sold $36K of MRAM on 9 July 2026. Lifetime open-market sales: $615K.
Recent Transactions
7Every recent SEC Form 4 transaction William Earl Cooper has reported, most recent first.
Trading Pattern
InsiderAlpha's records for William Earl Cooper go back to 2026: 6 primary Form 4 filings, an average of 6.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies William Earl Cooper files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Lawrence G. Finch - $8.52M of MRAM open-market activity in the last 12 months
- Sanjeev Aggarwal - $6.00M of MRAM open-market activity in the last 12 months
- Glen Hawk - $1.84M of MRAM open-market activity in the last 12 months
- Darin G. Billerbeck - $1.23M of MRAM open-market activity in the last 12 months
- Geoffrey G. Ribar - $794K of MRAM open-market activity in the last 12 months
- Tara Long - $58K of MRAM open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is William Earl Cooper?
William Earl Cooper is a corporate insider, tracked as Chief Financial Officer of EVERSPIN TECHNOLOGIES INC. (MRAM). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has William Earl Cooper submitted recently?
3 primary Form 4 filings in the last 90 days, covering 1 company.
Has William Earl Cooper been buying or selling stock?
Recorded transactions: 0 open-market purchases and 5 open-market sales ($615K) across all tracked filings.
Where can I see all of William Earl Cooper's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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