John R Campbell
CIK 1964039 · Chief Financial Officer · last filed 2026-04-03
John R Campbell is a Chief Financial Officer who has filed 9 SEC Form 4 insider transactions across 1 company since 2023. The most recent filing, for ISTR, was dated Apr 3, 2026. Across all open-market trades the lifetime net is +$24.9K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $869.5K across reported positions.
"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.
$869.5K
1
9
$24.9K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ISTR | Chief Financial Officer | 29,147 | $29.83 | $869.5K | $24.9K | 9 | 2026-04-03 |
Recent Filings
9 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-04-03 | ISTR | Mixed | +7,674 | -$28.1K | EDGAR |
| 2026-03-03 | ISTR | Tax (F) | −259 | -$7.3K | EDGAR |
| 2025-07-03 | ISTR | Grant (A) | — | $0 | EDGAR |
| 2025-04-03 | ISTR | Mixed | +10,949 | -$6.7K | EDGAR |
| 2025-03-04 | ISTR | Tax (F) | −259 | -$4.9K | EDGAR |
| 2024-04-03 | ISTR | Grant (A) | +5,622 | $0 | EDGAR |
| 2024-03-05 | ISTR | Tax (F) | −259 | -$4.1K | EDGAR |
| 2023-04-25 | ISTR | Buy (P) | +1,865 | $24.9K | EDGAR |
| 2023-03-03 | ISTR | Grant (A) | +3,814 | $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.