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John R Campbell
Insider
First SEC filing: April 3, 2026 · Latest: April 3, 2026
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| April 1, 2026 | ISTR | F | 1,020 | $27.50 | $28,050 | 20,453 Direct | -4.75% | Disposed | 6.9% (price as of 2026-10-02) |
| April 1, 2026 | ISTR | A | 8,694 | · | · | 29,147 Direct | +42.51% | Acquired | (price as of 2026-10-02) |
| March 1, 2026 | ISTR | F | 259 | $28.23 | $7,312 | 21,473 Direct | -1.19% | Disposed | 4.2% (price as of 2026-10-02) |
| July 1, 2025 | ISTR | A | 30 | $1000.00 | $30,000 | 30 Direct | · | Acquired | -97.1% (price as of 2026-10-02) |
| April 1, 2025 | ISTR | F | 382 | $17.41 | $6,651 | 10,401 Direct | -3.54% | Disposed | 68.9% (price as of 2026-10-02) |
| April 1, 2025 | ISTR | A | 11,331 | · | · | 21,732 Direct | +108.94% | Acquired | (price as of 2026-10-02) |
| March 1, 2025 | ISTR | F | 259 | $18.73 | $4,851 | 10,783 Direct | -2.35% | Disposed | 57.0% (price as of 2026-10-02) |
| April 1, 2024 | ISTR | A | 5,622 | · | · | 11,042 Direct | +103.73% | Acquired | (price as of 2026-10-02) |
| April 1, 2024 | ISTR | A | 10,145 | · | · | 10,145 Direct | · | Acquired | (price as of 2026-10-02) |
| March 1, 2024 | ISTR | F | 259 | $15.75 | $4,079 | 5,420 Direct | -4.56% | Disposed | 86.7% (price as of 2026-10-02) |
| April 25, 2023 | ISTR | P | 1,865 | $13.37 | $24,935 | 5,679 Direct | +48.90% | Acquired | 120.0% (price as of 2026-10-02) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| July 1, 2025 | ISTR | Series A Noncumulative Perpetual Convertible Preferred Stock | Common Stock | · | · | 30 | Acquired |
| April 1, 2024 | ISTR | Employee Stock Options | Common Stock | $16.35 | April 1, 2034 | 10,145 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).