William M. Mitchell - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
William M. Mitchell is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market purchases: $5K. Lifetime open-market sales: $884.
Profile
William M. Mitchell is Director at AIM ImmunoTech Inc. (AIM). Mitchell has reported 4 insider filings with the SEC since 2024. The most recent filing was in April 2025.
| Role | Director |
|---|---|
| Notability | 26/100 |
Board memberships
- AIM ImmunoTech Inc.
Reported roles
- Director
Trading Pattern
InsiderAlpha's records for William M. Mitchell go back to 2024: 4 primary Form 4 filings, an average of 1.3 per year. The typical open-market purchase is $5K (1 buy totaling $5K). The largest single buy on record is $5K of AIM in 2025. Sales side: 1 recorded sale totaling $884, so the filing history runs buy-heavy by dollar value. 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.
Career & Filing History
Every role William M. Mitchell has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Director at AIM ImmunoTech Inc. (AIM) - 4 filings, 2024 to 2025
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2025-04-21 | AIM | AIM ImmunoTech Inc. | P - Open-market purchase | 196.9K | $0.03 | $5K |
| 2024-12-20 | AIM | AIM ImmunoTech Inc. | S - Open-market sale | 4.6K | $0.19 | $884 |
| 2024-12-17 | AIM | AIM ImmunoTech Inc. | A - Grant or award | 24.5K | $0.21 | $5K |
| 2024-12-03 | AIM | AIM ImmunoTech Inc. | A - Grant or award | 22.6K | $0.23 | $5K |
Most Active Insiders Right Now
William M. Mitchell has no recent co-filers at the same companies, so here are the insiders with the largest open-market activity across the market in the last 90 days.
- MetLife Investment Management, LLC - $1600000.00B of FINS open-market activity in the last 90 days
- Magnetar Financial LLC - $16357.48B of CRWV open-market activity in the last 90 days
- Marianne Okland - $18.46B of STNG open-market activity in the last 90 days
- VisionWave Holdings, Inc. - $14.13B of SVRE open-market activity in the last 90 days
- Vanessa Allen Sutherland - $7.44B of PSX open-market activity in the last 90 days
- AI Alpine (Luxembourg) S.a.r.l. - $2.69B of INIO open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Gregg Williams
- Stephen T. Wills
- WINMILL CO. INC
- Caroline Young
- Jeffrey Yu
- George Raymond Zage III
- Payam Zamani
- Mahkam Zanganeh
Frequently Asked Questions
Who is William M. Mitchell?
William M. Mitchell is Director at AIM ImmunoTech Inc. (AIM). Mitchell has reported 4 insider filings with the SEC since 2024. The most recent filing was in April 2025.…
Has William M. Mitchell been buying or selling stock?
Recorded transactions: 1 open-market purchase ($5K) and 1 open-market sale ($884) across all tracked filings.
Where can I see all of William M. Mitchell'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.
Learn More
Open the live William M. Mitchell profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.