Robert Lawrence Brainin
First SEC filing: Jan. 16, 2026 · Latest: Jan. 16, 2026
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| July 16, 2025 | CSBR | A | 225,000 | $7.80 | $1,755,000 | 299,163 Direct | +303.39% | Acquired | -36.7% (price as of 2026-10-02) |
| July 16, 2025 | CSBR | A | 62,500 | $7.80 | $487,500 | 361,663 Direct | +20.89% | Acquired | -36.7% (price as of 2026-10-02) |
| July 16, 2025 | CSBR | A | 62,500 | $7.80 | $487,500 | 424,163 Direct | +17.28% | Acquired | -36.7% (price as of 2026-10-02) |
| July 16, 2025 | CSBR | A | 150,000 | $7.80 | $1,170,000 | 574,163 Direct | +35.36% | Acquired | -36.7% (price as of 2026-10-02) |
| July 16, 2025 | CSBR | A | 100,000 | $7.80 | $780,000 | 674,163 Direct | +17.42% | Acquired | -36.7% (price as of 2026-10-02) |
| July 16, 2025 | CSBR | A | 100,000 | $7.80 | $780,000 | 774,163 Direct | +14.83% | Acquired | -36.7% (price as of 2026-10-02) |
| Nov. 12, 2024 | CSBR | A | 23,030 | $4.64 | $106,859 | 74,163 Direct | +45.04% | Acquired | 6.5% (price as of 2026-10-02) |
| Nov. 3, 2023 | CSBR | A | 19,070 | $5.51 | $105,076 | 51,133 Direct | +59.48% | Acquired | -10.3% (price as of 2026-10-02) |
| Nov. 1, 2022 | CSBR | A | 14,130 | $7.00 | $98,910 | 32,063 Direct | +78.79% | Acquired | -29.4% (price as of 2026-10-02) |
| Nov. 5, 2021 | CSBR | A | 9,901 | $10.10 | $100,000 | 17,933 Direct | +123.27% | Acquired | -51.1% (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 16, 2025 | CSBR | Option to purchase Common Stock | Common Stock | $7.80 | July 16, 2035 | 225,000 | Acquired |
| July 16, 2025 | CSBR | Option to purchase Common Stock | Common Stock | $7.80 | July 16, 2035 | 62,500 | Acquired |
| July 16, 2025 | CSBR | Option to purchase Common Stock | Common Stock | $7.80 | July 16, 2035 | 62,500 | Acquired |
| July 16, 2025 | CSBR | Option to purchase Common Stock | Common Stock | $7.80 | July 16, 2035 | 150,000 | Acquired |
| July 16, 2025 | CSBR | Option to purchase Common Stock | Common Stock | $7.80 | July 16, 2035 | 100,000 | Acquired |
| July 16, 2025 | CSBR | Option to purchase Common Stock | Common Stock | $7.80 | July 16, 2035 | 100,000 | Acquired |
| Nov. 12, 2024 | CSBR | Option to purchase Common Stock | Common Stock | $4.64 | Nov. 12, 2034 | 23,030 | Acquired |
| Nov. 3, 2023 | CSBR | Option to purchase Common Stock | Common Stock | $5.51 | Nov. 3, 2033 | 19,070 | Acquired |
| Nov. 1, 2022 | CSBR | Option to purchase Common Stock | Common Stock | $7.00 | Nov. 1, 2032 | 14,130 | Acquired |
| Nov. 5, 2021 | CSBR | Option to purchase Common Stock | Common Stock | $10.10 | Nov. 5, 2031 | 9,901 | 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 |
|---|---|---|---|---|
| Jan. 16, 2026 | CSBR | Option to purchase Common Stock | 8,032 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2026 | · | · | · | · | · | · | · | $3,567,022 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.