Alan F Holmer
CIK 1329585 · View on SEC EDGAR ↗
Insider
First SEC filing: Nov. 25, 2014 · Latest: Nov. 25, 2014
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 20 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
20 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 11, 2017 | CRBP | P | 500 | $6.23 | $3,115 | 22,500 Direct | +2.27% | Acquired | -94.6% (price as of 2026-08-21) |
| Nov. 22, 2016 | CRBP | P | 1,000 | $7.49 | $7,490 | 22,000 Direct | +4.76% | Acquired | -95.5% (price as of 2026-08-21) |
| Aug. 17, 2015 | CRBP | P | 1,000 | $1.90 | $1,900 | 11,000 Direct | +10.00% | Acquired | -82.4% (price as of 2026-08-21) |
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 30, 2025 | CRBP | Stock options (right to buy) | Common Stock (16,000) | $7.42 | May 30, 2035 | 16,000 | Acquired |
| June 14, 2024 | CRBP | Options to purchase common stock [F2] | Common Stock (1,667) | $30.00 | July 9, 2024 | 1,667 | Disposed |
| May 16, 2024 | CRBP | Stock Option (right to buy) | Common Stock (2,783) | $45.92 | May 16, 2034 | 2,783 | Acquired |
| Jan. 26, 2024 | CRBP | Options to purchase common stock [F1] | Common stock (629) | $4.97 | Jan. 29, 2024 | 629 | Disposed |
| May 18, 2023 | CRBP | Stock Option (right to buy) | Common Stock (5,300) | $9.96 | May 18, 2033 | 5,300 | Acquired |
| May 18, 2022 | CRBP | Stock Option(right to buy) [F1] | Common Stock (79,600) | $0.33 | May 18, 2032 | 79,600 | Acquired |
| June 17, 2021 | CRBP | Stock Option (right to buy) | Common Stock (58,200) | $2.07 | June 17, 2031 | 58,200 | Acquired |
| June 17, 2021 | CRBP | Stock Option (right to buy) | Common Stock (58,200) | $2.07 | June 17, 2031 | 58,200 | Acquired |
| May 20, 2020 | CRBP | Stock Option(right to buy) | Common Stock (40,500) | $7.30 | May 20, 2030 | 40,500 | Acquired |
| May 22, 2019 | CRBP | Stock Option(right to buy) | Common Stock (33,300) | $7.31 | May 22, 2029 | 33,300 | Acquired |
| May 24, 2018 | CRBP | Stock Option(right to buy) | Common Stock (34,000) | $5.93 | May 24, 2028 | 34,000 | Acquired |
| May 25, 2017 | CRBP | Stock Option(right to buy) | Common Stock (30,500) | $6.75 | May 25, 2027 | 30,500 | Acquired |
| May 26, 2016 | CRBP | Stock Option(right to buy) | Common Stock (50,000) | $3.00 | May 26, 2026 | 50,000 | Acquired |
| Aug. 25, 2015 | CRBP | Warrant | Common Stock (10,000) | $1.00 | May 30, 2019 | 10,000 | Disposed |
| Aug. 12, 2015 | CRBP | Stock Option(right to buy) | Common Stock (20,000) | $1.97 | Aug. 12, 2015 | 20,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.