Brian Piekos
Insider
First SEC filing: Feb. 19, 2021 · Latest: June 11, 2026
Insider at
Insider transactions
0 buys (P)
4 sells (S)
Net: $-165,172
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 11, 2026 | KALV | D | 21,661 | · | · | 0 Direct | -100.00% | Disposed | |
| June 11, 2026 | KALV | D | 100,000 | · | · | 0 Direct | -100.00% | Disposed | |
| June 11, 2026 | KALV | D | 55,000 | · | · | 0 Direct | -100.00% | Disposed | |
| June 11, 2026 | KALV | D | 93,750 | · | · | 0 Direct | -100.00% | Disposed | |
| May 22, 2026 | KALV | S | 1,489 | $26.78 | $39,875 | 21,661 Direct | -6.43% | Disposed | |
| May 21, 2026 | KALV | M | 5,000 | · | · | 23,150 Direct | +27.55% | Acquired | |
| May 21, 2026 | KALV | M | 5,000 | · | · | 55,000 Direct | -8.33% | Disposed | |
| April 17, 2026 | KALV | S | 1,862 | $20.22 | $37,650 | 18,150 Direct | -9.30% | Disposed | |
| April 16, 2026 | KALV | M | 6,250 | · | · | 20,012 Direct | +45.41% | Acquired | |
| April 16, 2026 | KALV | M | 6,250 | · | · | 93,750 Direct | -6.25% | Disposed | |
| Feb. 23, 2026 | KALV | S | 1,767 | $15.57 | $27,512 | 13,762 Direct | -11.38% | Disposed | |
| Feb. 21, 2026 | KALV | M | 5,000 | · | · | 15,529 Direct | +47.49% | Acquired | |
| Feb. 21, 2026 | KALV | M | 5,000 | · | · | 60,000 Direct | -7.69% | Disposed | |
| Jan. 16, 2026 | KALV | A | 100,000 | · | · | 100,000 Direct | · | Acquired | |
| Nov. 24, 2025 | KALV | S | 4,471 | $13.45 | $60,135 | 10,529 Direct | -29.81% | Disposed | |
| Nov. 21, 2025 | KALV | M | 15,000 | · | · | 15,000 Direct | · | Acquired | |
| Nov. 21, 2025 | KALV | M | 15,000 | · | · | 65,000 Direct | -18.75% | Disposed | |
| Feb. 21, 2025 | KALV | A | 80,000 | · | · | 80,000 Direct | · | Acquired | |
| Sept. 9, 2024 | KALV | A | 100,000 | · | · | 100,000 Direct | · | Acquired | |
| Feb. 1, 2024 | ELTX | A | 43,225 | · | · | 43,225 Direct | · | Acquired | (price as of 2026-10-02) |
| June 1, 2023 | ELTX | A | 75,484 | · | · | 75,484 Direct | · | Acquired | (price as of 2026-10-02) |
| May 31, 2022 | IRON | A | 9,960 | $1.09 | $10,856 | 17,615 Direct | +130.11% | Acquired | 97.3% (price as of 2026-10-02) |
| Jan. 13, 2022 | IRON | A | 280,876 | · | · | 280,876 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 18, 2021 | IRON | A | 90,720 | · | · | 90,720 Direct | · | Acquired | (price as of 2026-10-02) |
| May 14, 2021 | IRON | P | 7,655 | $9.46 | $72,416 | 7,655 Direct | · | Acquired | -77.3% (price as of 2026-10-02) |
| April 12, 2021 | IRON | A | 377,734 | · | · | 377,734 Direct | · | Acquired | (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 |
|---|---|---|---|---|---|---|---|
| June 11, 2026 | KALV | Stock Option (Right to Buy) | Common Stock | $11.87 | Sept. 8, 2034 | 100,000 | Disposed |
| June 11, 2026 | KALV | Restricted Stock Unit | Common Stock | · | · | 55,000 | Disposed |
| June 11, 2026 | KALV | Restricted Stock Unit | Common Stock | · | · | 93,750 | Disposed |
| May 21, 2026 | KALV | Restricted Stock Unit | Common Stock | · | · | 5,000 | Disposed |
| April 16, 2026 | KALV | Restricted Stock Unit | Common Stock | · | · | 6,250 | Disposed |
| Feb. 21, 2026 | KALV | Restricted Stock Unit | Common Stock | · | · | 5,000 | Disposed |
| Jan. 16, 2026 | KALV | Restricted Stock Unit | Common Stock | · | · | 100,000 | Acquired |
| Nov. 21, 2025 | KALV | Restricted Stock Unit | Common Stock | · | · | 15,000 | Disposed |
| Feb. 21, 2025 | KALV | Restricted Stock Unit | Common Stock | · | · | 80,000 | Acquired |
| Sept. 9, 2024 | KALV | Employee Stock Option (right to buy) | Common Stock | $11.87 | · | 100,000 | Acquired |
| Feb. 1, 2024 | ELTX | Stock Option (right to buy) | Common Stock | $4.50 | Feb. 1, 2034 | 43,225 | Acquired |
| June 1, 2023 | ELTX | Stock Option (right to buy) | Common Stock | $10.00 | June 1, 2033 | 75,484 | Acquired |
| Jan. 13, 2022 | IRON | Restricted Stock Units | Common Stock | · | · | 280,876 | Acquired |
| Oct. 18, 2021 | IRON | Restricted Stock Units | Common Stock | · | · | 90,720 | Acquired |
| April 12, 2021 | IRON | Stock Option (Right to Buy) | Common Stock | $12.59 | April 11, 2031 | 377,734 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Feb. 19, 2021 | IRON | Stock Option (Right to Buy) | 43,580 | Direct |