Claire Mazumdar
CIK 2034671 · View on SEC EDGAR ↗
First SEC filing: Sept. 12, 2024 · Latest: June 10, 2026
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
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 |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 10, 2026 | BCAX | S 10b5-1 | 10,000 | $27.98 | $279,800 | 362,152 Direct | -2.69% | Disposed | -12.4% (price as of 2026-08-21) |
| July 10, 2026 | BCAX | S 10b5-1 | 28 | $29.68 | $831 | 362,152 Direct | -0.01% | Disposed | -17.5% (price as of 2026-08-21) |
| July 10, 2026 | BCAX | S 10b5-1 | 9,972 | $28.42 | $283,404 | 362,180 Direct | -2.68% | Disposed | -13.8% (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 |
|---|---|---|---|---|---|---|---|
| Aug. 10, 2026 | BCAX | Stock Option (Right to Buy) | Common Stock (10,000) | $3.79 | April 5, 2033 | 10,000 | Disposed |
| July 10, 2026 | BCAX | Stock Option (Right to Buy) | Common Stock (10,000) | $3.79 | April 5, 2033 | 10,000 | Disposed |
| June 9, 2026 | RLAY | Stock Option (Right to Buy) | Common Stock (32,947) | $14.09 | June 8, 2036 | 32,947 | Acquired |
| June 9, 2025 | RLAY | Stock Option (Right to Buy) | Common Stock (421,241) | $3.36 | June 8, 2035 | 421,241 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 8 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Sept. 12, 2024 | BCAX | Common Stock | 309,892 | Direct |
| Sept. 12, 2024 | BCAX | Stock Option (Right to Buy)→ Common Stock (99,315) | 99,315 | Direct |
| Sept. 12, 2024 | BCAX | Stock Option (Right to Buy)→ Common Stock (48,682) | 48,682 | Direct |
| Sept. 12, 2024 | BCAX | Stock Option (Right to Buy)→ Common Stock (16,227) | 16,227 | Direct |
| Sept. 12, 2024 | BCAX | Stock Option (Right to Buy)→ Common Stock (138,000) | 138,000 | Direct |
| Sept. 12, 2024 | BCAX | Stock Option (Right to Buy)→ Common Stock (326,107) | 326,107 | Direct |
| Sept. 12, 2024 | BCAX | Stock Option (Right to Buy)→ Common Stock (595,012) | 595,012 | Direct |
| Sept. 12, 2024 | BCAX | Stock Option (Right to Buy)→ Common Stock (1,141,342) | 1,141,342 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
BCAX
CEO| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $625,000 | — | — | — | $292,188 | — | $10,500 | $927,688 |
| 2024 | $517,500 | $287,000 | — | $8,088,723 | $10,000 | — | $15,300 | $8,918,523 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.