Insider profile
Mark R Widmar Insider Trading
This page tracks every SEC Form 4 filing since April 2023 by Mark R Widmar, Chief Executive Officer: 129 transactions in total, none of them an open-market purchase, and 83 sales. Each record is parsed directly from the original filing, with amendments reconciled so a corrected filing never double-counts.
- Role
- Chief Executive Officer · Director
- CIK
- 0001362208
- Companies traded
- 1
- Total filings
- 129
- First filing
- 2023-03-06
- Last filing
- 2026-07-01
Files as Widmar Mark R · SEC EDGAR ↗
Activity summary
The most recent open-market transaction, on May 26, 2026, was 8 sales totaling 5,195 shares ($1.4M). They were filed under a 10b5-1 plan, scheduled in advance rather than decided on the day.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Mark R Widmar has been a net seller across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $10.0M.
Insider insight
Mark R Widmar trades most actively in FSLR, accounting for 6 of the 129 filings on record.
Track record
Most active in
Transaction History
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 1, 2026 | Mark R Widmar | ALB | Award | 1,250 | — | — |
| May 26, 2026 | Mark R Widmar | FSLR | Sale10b5 | 1,237 | $266.60 | $330K |
| May 26, 2026 | Mark R Widmar | FSLR | Sale10b5 | 473 | $273.17 | $129K |
| May 26, 2026 | Mark R Widmar | FSLR | Sale10b5 | 726 | $271.23 | $197K |
| May 26, 2026 | Mark R Widmar | FSLR | Sale10b5 | 628 | $267.72 | $168K |
45 more transactions hidden
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Query this yourself
The same rows, over the API.
curl "https://api.form4api.com/v1/insiders/0001362208/transactions" \
-H "X-Api-Key: $KEY"Companies traded
By number of filings.
Based on the last 50 filings on file — this insider has a longer history.
Filing cadence
Filings per quarter, this window.
Busiest: Q2 26 (41 filings)
Quietest: Q3 26 (1 filing)
Based on the last 50 filings on file — this insider has a longer history.
Reading an insider's Form 4 history
Corporate insiders — directors, officers, and holders of more than 10% of a company's stock — must report their trades to the SEC on Form 4 within two business days. Looking at one insider's filings over time shows whether they tend to buy on the open market (a discretionary use of their own money, generally the strongest signal), sell, or simply receive and exercise equity awards as compensation.
The track record above measures how this insider's past open-market purchases performed in the months after each filing. Trades made under a pre-scheduled Rule 10b5-1 plan are flagged because they carry no timing signal. To pull any insider's full history programmatically, see the insider trading API or our guide to reading Form 4 filings.