Anne Altmeyer
CIK 1947086 · View on SEC EDGAR ↗
Insider
First SEC filing: June 11, 2026 · Latest: June 11, 2026
On this page
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net:
$-40,809
+ 10 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
10 other filings hidden
| 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 | 24.5% (price as of 2026-08-20) |
| Oct. 20, 2025 | CRBP | S 10b5-1 | 1,060 | $20.50 | $21,730 | 6,191 Direct | -14.62% | Disposed | -52.0% (price as of 2026-08-20) |
| May 30, 2025 | CRBP | S 10b5-1 | 1,392 | $7.25 | $10,092 | 1,391 Direct | -50.02% | Disposed | 35.9% (price as of 2026-08-20) |
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 (12,300) | $9.15 | May 19, 2026 | 12,300 | Acquired |
| Oct. 20, 2025 | CRBP | Stock options (right to buy) [F3] | Common Stock (1,060) | $4.80 | Sept. 26, 2032 | 1,060 | Disposed |
| May 30, 2025 | CRBP | Stock options (right to buy) | Common Stock (16,000) | $7.42 | May 30, 2035 | 16,000 | Acquired |
| May 16, 2024 | CRBP | Stock Option (right to buy) | Common Stock (2,783) | $45.92 | May 16, 2034 | 2,783 | Acquired |
| May 18, 2023 | CRBP | Stock Option (right to buy) | Common Stock (5,300) | $9.96 | May 18, 2033 | 5,300 | Acquired |
| Sept. 26, 2022 | CRBP | Stock Option(right to buy) [F1] | Common Stock (159,200) | $0.16 | Sept. 26, 2022 | 159,200 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).