Michael J Zimmerman
CIK 1239734 · Chmn.of Board (Non-Executive) · last filed 2026-06-11
Michael J Zimmerman is a Chmn.of Board (Non-Executive) who has filed 63 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for SF, was dated Jun 11, 2026. Across all open-market trades the lifetime net is −$621.3K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $5.0M across reported positions. 33 SEC filings were submitted jointly with STIFEL FINANCIAL CORP.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
SF price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
ST. LOUIS, MO 63102
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SF | Director | 71,562 | $67.85 | $4.86M | -$725.0K | 24 | 2026-06-11 |
| STIFEL FINANCIAL CORP (SFN) Delisted | Director | 2,856 | — | — | $0 | 5 | 2016-06-17 |
| SFD | 7,334 | $18.81 | $138.0K | $103.7K | 5 | 2009-08-28 | |
| PREMIUM STANDARD FARMS, INC. (PORK) Delisted | Director | 0 | — | — | $0 | 2 | 2007-05-08 |
Recent Filings
63 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-11 | SF | Grant (A) | — | $0 | EDGAR |
| 2026-06-08 | SF | Exer (M) | +2,812 | $0 | EDGAR |
| 2025-06-06 | SF | Mixed | −8,086 | -$967.0K | EDGAR |
| 2025-06-06 | SF | Notice (144) | −10,000 | -$967.0K | EDGAR |
| 2024-06-07 | SF | Mixed | +2,504 | $0 | EDGAR |
| 2023-06-15 | SF | Exer (M) | +2,641 | $0 | EDGAR |
| 2023-06-09 | SF | Grant (A) | — | $0 | EDGAR |
| 2022-08-17 | SF | Grant (A) | — | $0 | EDGAR |
| 2022-06-15 | SF | Grant (A) | — | $0 | EDGAR |
| 2022-06-02 | SF | Exer (M) | +1,389 | $0 | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.