Mazumdar Claire
Director · Officer · BCAX, RLAY
As of 2026-09-16, Mazumdar Claire has 58 Form 4 transactions on record across 2 companies — 57 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-10 | BCAX | Sale | 10,000 @ $27.98 | $280K | −2.7% of holding | 362,152 | Form 4 |
| 2026-07-10 | BCAX | Sale | 9,972 @ $28.42 | $283K | −2.7% of holding | 362,180 | Form 4 |
| 2026-07-10 | BCAX | Sale | 28 @ $29.68 | $831 | −0.0% of holding | 362,152 | Form 4 |
| 2026-05-18 | BCAX | Sale | 12,022 @ $19.96 | $240K | −3.2% of holding | 365,130 | Form 4 |
| 2026-05-18 | BCAX | Sale | 2,978 @ $20.35 | $61K | −0.8% of holding | 362,152 | Form 4 |
| 2026-04-20 | BCAX | Sale | 15,000 @ $23.61 | $354K | −4.0% of holding | 362,152 | Form 4 |
| 2026-03-20 | BCAX | Sale | 1,596 @ $18.95 | $30K | −0.5% of holding | 339,392 | Form 4 |
| 2026-03-19 | BCAX | Sale | 6,905 @ $18.78 | $130K | −2.0% of holding | 339,392 | Form 4 |
| 2026-03-18 | BCAX | Sale | 6,499 @ $18.84 | $122K | −1.9% of holding | 339,392 | Form 4 |
| 2026-03-09 | BCAX | Sale | 36,766 @ $19.17 | $705K | −9.8% of holding | 339,392 | Form 4 |
| 2026-03-06 | BCAX | Sale | 3,817 @ $18.75 | $72K | −1.1% of holding | 339,392 | Form 4 |
| 2026-03-05 | BCAX | Sale | 1,786 @ $18.74 | $33K | −0.5% of holding | 339,392 | Form 4 |
| 2026-03-04 | BCAX | Sale | 2,631 @ $18.73 | $49K | −0.8% of holding | 339,392 | Form 4 |
| 2025-11-24 | BCAX | Sale | 41,163 @ $18.86 | $776K | −11.7% of holding | 309,892 | Form 4 |
| 2025-10-16 | BCAX | Sale | 24,103 @ $18.83 | $454K | −7.2% of holding | 309,892 | Form 4 |
| 2025-10-15 | BCAX | Sale | 13,289 @ $18.84 | $250K | −4.1% of holding | 309,892 | Form 4 |
| 2025-10-13 | BCAX | Sale | 11,445 @ $18.92 | $217K | −3.6% of holding | 309,892 | Form 4 |
41 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-08-10 | BCAX | Option exercise | 10,000 | 372,152 | Form 4 |
| 2026-08-10 | BCAX | Option exercise | 10,000 | 110,546 | Form 4 |
| 2026-07-10 | BCAX | Option exercise | 10,000 | 372,152 | Form 4 |
| 2026-07-10 | BCAX | Option exercise | 10,000 | 120,546 | Form 4 |
| 2026-06-09 | RLAY | Award / grant | 32,947 | 32,947 | Form 4 |
| 2026-05-18 | BCAX | Option exercise | 15,000 | 377,152 | Form 4 |
| 2026-05-18 | BCAX | Option exercise | 15,000 | 146,107 | Form 4 |
| 2026-04-20 | BCAX | Option exercise | 15,000 | 377,152 | Form 4 |
| 2026-04-20 | BCAX | Option exercise | 15,000 | 161,107 | Form 4 |
| 2026-04-16 | BCAX | Option exercise | 7,080 | 362,152 | Form 4 |
| 2026-04-16 | BCAX | Option exercise | 8,226 | 347,618 | Form 4 |
| 2026-04-16 | BCAX | Option exercise | 7,454 | 355,072 | Form 4 |
| 2026-04-16 | BCAX | Option exercise | 7,454 | 130,546 | Form 4 |
| 2026-04-16 | BCAX | Option exercise | 8,226 | 56,684 | Form 4 |
| 2026-04-16 | BCAX | Option exercise | 7,080 | 558,432 | Form 4 |
| 2026-03-20 | BCAX | Option exercise | 1,596 | 340,988 | Form 4 |
| 2026-03-20 | BCAX | Option exercise | 1,596 | 176,107 | Form 4 |
| 2026-03-19 | BCAX | Option exercise | 6,905 | 346,297 | Form 4 |
| 2026-03-19 | BCAX | Option exercise | 6,905 | 177,703 | Form 4 |
| 2026-03-18 | BCAX | Option exercise | 6,499 | 345,891 | Form 4 |
| 2026-03-18 | BCAX | Option exercise | 6,499 | 184,608 | Form 4 |
| 2026-03-09 | BCAX | Option exercise | 36,766 | 376,158 | Form 4 |
| 2026-03-09 | BCAX | Option exercise | 36,766 | 191,107 | Form 4 |
| 2026-03-06 | BCAX | Option exercise | 3,817 | 343,209 | Form 4 |
| 2026-03-06 | BCAX | Option exercise | 3,817 | 227,873 | Form 4 |
| 2026-03-05 | BCAX | Option exercise | 1,786 | 341,178 | Form 4 |
| 2026-03-05 | BCAX | Option exercise | 1,786 | 231,690 | Form 4 |
| 2026-03-04 | BCAX | Option exercise | 2,631 | 342,023 | Form 4 |
| 2026-03-04 | BCAX | Option exercise | 2,631 | 233,476 | Form 4 |
| 2026-02-02 | BCAX | Award / grant | 450,000 | 450,000 | Form 4 |
| 2025-12-16 | BCAX | Option exercise | 29,500 | 339,392 | Form 4 |
| 2025-12-16 | BCAX | Option exercise | 29,500 | 565,512 | Form 4 |
| 2025-11-24 | BCAX | Option exercise | 41,163 | 351,055 | Form 4 |
| 2025-11-24 | BCAX | Option exercise | 41,163 | 236,107 | Form 4 |
| 2025-10-16 | BCAX | Option exercise | 24,103 | 333,995 | Form 4 |
| 2025-10-16 | BCAX | Option exercise | 24,103 | 277,270 | Form 4 |
| 2025-10-15 | BCAX | Option exercise | 13,289 | 323,181 | Form 4 |
| 2025-10-15 | BCAX | Option exercise | 13,289 | 301,373 | Form 4 |
| 2025-10-13 | BCAX | Option exercise | 11,445 | 321,337 | Form 4 |
| 2025-10-13 | BCAX | Option exercise | 11,445 | 314,662 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.