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Anne Altmeyer
Insider
First SEC filing: June 11, 2026 · Latest: June 11, 2026
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net: $-40,809
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 10, 2026 | CRBP | S 10b5-1 | 2,412 | $7.91 | $19,079 | 7,579 Direct | -24.14% | Disposed | -26.0% (price as of 2026-10-05) |
| May 19, 2026 | CRBP | A | 12,300 | · | · | 12,300 Direct | · | Acquired | (price as of 2026-10-05) |
| May 19, 2026 | CRBP | A | 3,800 | · | · | 9,991 Direct | +61.38% | Acquired | (price as of 2026-10-05) |
| Oct. 20, 2025 | CRBP | M | 1,060 | · | · | 4,247 Direct | -19.97% | Disposed | (price as of 2026-10-05) |
| Oct. 20, 2025 | CRBP | S 10b5-1 | 1,060 | $20.50 | $21,730 | 6,191 Direct | -14.62% | Disposed | -71.5% (price as of 2026-10-05) |
| Oct. 20, 2025 | CRBP | M | 1,060 | $4.80 | $5,088 | 7,251 Direct | +17.12% | Acquired | 21.9% (price as of 2026-10-05) |
| May 30, 2025 | CRBP | A | 16,000 | · | · | 16,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 30, 2025 | CRBP | A | 4,800 | · | · | 6,191 Direct | +345.08% | Acquired | (price as of 2026-10-05) |
| May 30, 2025 | CRBP | S 10b5-1 | 1,392 | $7.25 | $10,092 | 1,391 Direct | -50.02% | Disposed | -19.3% (price as of 2026-10-05) |
| May 30, 2024 | CRBP | A | 2,783 | · | · | 2,783 Direct | · | Acquired | (price as of 2026-10-05) |
| May 16, 2024 | CRBP | A | 2,783 | · | · | 2,783 Direct | · | Acquired | (price as of 2026-10-05) |
| May 18, 2023 | CRBP | A | 5,300 | · | · | 5,300 Direct | · | Acquired | (price as of 2026-10-05) |
| Sept. 26, 2022 | CRBP | A | 159,200 | · | · | 159,200 Direct | · | Acquired | (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| May 19, 2026 | CRBP | Stock options (right to buy) | Common Stock | $9.15 | May 19, 2026 | 12,300 | Acquired |
| Oct. 20, 2025 | CRBP | Stock options (right to buy) [F3] | Common Stock | $4.80 | Sept. 26, 2032 | 1,060 | Disposed |
| May 30, 2025 | CRBP | Stock options (right to buy) | Common Stock | $7.42 | May 30, 2035 | 16,000 | Acquired |
| May 16, 2024 | CRBP | Stock Option (right to buy) | Common Stock | $45.92 | May 16, 2034 | 2,783 | Acquired |
| May 18, 2023 | CRBP | Stock Option (right to buy) | Common Stock | $9.96 | May 18, 2033 | 5,300 | Acquired |
| Sept. 26, 2022 | CRBP | Stock Option(right to buy) [F1] | Common Stock | $0.16 | Sept. 26, 2022 | 159,200 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).