Kumar Neil
Director · Officer · BBIO, BBOT, MAZE
As of 2026-09-16, Kumar Neil has 241 Form 4 transactions on record across 3 companies — 180 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.
Pattern in the record: open-market sales filed in August in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-19 | BBIO | Sale | 8,100 @ $83.86 | $679K | −1.6% of holding | 507,586 | Form 4 |
| 2026-08-19 | BBIO | Sale | 1,800 @ $84.69 | $152K | −0.4% of holding | 505,786 | Form 4 |
| 2026-08-19 | BBIO | Sale | 100 @ $85.65 | $9K | −0.0% of holding | 505,686 | Form 4 |
| 2026-08-18 | BBIO | Sale | 17,279 @ $82.21 | $1.4M | −6.3% of holding | 259,128 | Form 4 |
| 2026-08-18 | BBIO | Sale | 14,602 @ $82.99 | $1.2M | −5.6% of holding | 244,526 | Form 4 |
| 2026-08-18 | BBIO | Sale | 1,900 @ $81.15 | $154K | −0.7% of holding | 276,407 | Form 4 |
| 2026-08-18 | BBIO | Sale | 1,199 @ $83.77 | $100K | −0.5% of holding | 243,327 | Form 4 |
| 2026-06-05 | BBIO | Sale | 8,437 @ $67.88 | $573K | −1.6% of holding | 520,102 | Form 4 |
| 2026-06-05 | BBIO | Sale | 8,437 @ $67.88 | $573K | −0.2% of holding | 4,322,862 | Form 4 |
| 2026-06-05 | BBIO | Sale | 7,148 @ $67.20 | $480K | −0.2% of holding | 4,331,299 | Form 4 |
| 2026-06-05 | BBIO | Sale | 7,147 @ $67.20 | $480K | −1.3% of holding | 528,539 | Form 4 |
| 2026-06-05 | BBIO | Sale | 4,416 @ $68.96 | $305K | −0.8% of holding | 515,686 | Form 4 |
| 2026-06-05 | BBIO | Sale | 4,415 @ $68.96 | $304K | −0.1% of holding | 4,318,447 | Form 4 |
| 2026-06-04 | BBIO | Sale | 15,921 @ $67.74 | $1.1M | −2.9% of holding | 536,136 | Form 4 |
| 2026-06-04 | BBIO | Sale | 15,921 @ $67.74 | $1.1M | −0.4% of holding | 4,338,897 | Form 4 |
| 2026-06-04 | BBIO | Sale | 2,200 @ $65.72 | $145K | −0.1% of holding | 4,356,247 | Form 4 |
| 2026-06-04 | BBIO | Sale | 2,200 @ $65.72 | $145K | −0.4% of holding | 553,486 | Form 4 |
| 2026-06-04 | BBIO | Sale | 1,429 @ $66.72 | $95K | −0.0% of holding | 4,354,818 | Form 4 |
| 2026-06-04 | BBIO | Sale | 1,429 @ $66.72 | $95K | −0.3% of holding | 552,057 | Form 4 |
| 2026-06-04 | BBIO | Sale | 450 @ $68.27 | $31K | −0.0% of holding | 4,338,447 | Form 4 |
| 2026-06-04 | BBIO | Sale | 450 @ $68.27 | $31K | −0.1% of holding | 535,686 | Form 4 |
| 2026-05-21 | BBIO | Sale | 11,250 @ $70.48 | $793K | −4.4% of holding | 244,127 | Form 4 |
| 2026-05-21 | BBIO | Sale | 6,725 @ $68.30 | $459K | −2.5% of holding | 260,449 | Form 4 |
| 2026-05-21 | BBIO | Sale | 5,072 @ $69.22 | $351K | −1.9% of holding | 255,377 | Form 4 |
| 2026-05-21 | BBIO | Sale | 2,256 @ $67.57 | $152K | −0.8% of holding | 267,174 | Form 4 |
| 2026-05-21 | BBIO | Sale | 800 @ $70.92 | $57K | −0.3% of holding | 243,327 | Form 4 |
| 2026-05-08 | BBIO | Sale | 13,974 @ $66.65 | $931K | −0.3% of holding | 4,364,473 | Form 4 |
| 2026-05-08 | BBIO | Sale | 13,973 @ $66.65 | $931K | −2.4% of holding | 561,713 | Form 4 |
| 2026-05-08 | BBIO | Sale | 5,077 @ $67.35 | $342K | −0.9% of holding | 556,636 | Form 4 |
| 2026-05-08 | BBIO | Sale | 5,076 @ $67.35 | $342K | −0.1% of holding | 4,359,397 | Form 4 |
| 2026-05-08 | BBIO | Sale | 950 @ $68.35 | $65K | −0.0% of holding | 4,358,447 | Form 4 |
| 2026-05-08 | BBIO | Sale | 950 @ $68.35 | $65K | −0.2% of holding | 555,686 | Form 4 |
| 2026-05-07 | BBIO | Sale | 11,217 @ $67.50 | $757K | −1.9% of holding | 584,469 | Form 4 |
| 2026-05-07 | BBIO | Sale | 11,217 @ $67.49 | $757K | −0.3% of holding | 4,387,230 | Form 4 |
| 2026-05-07 | BBIO | Sale | 8,334 @ $68.38 | $570K | −0.2% of holding | 4,378,896 | Form 4 |
| 2026-05-07 | BBIO | Sale | 8,333 @ $68.38 | $570K | −1.4% of holding | 576,136 | Form 4 |
| 2026-05-07 | BBIO | Sale | 450 @ $69.09 | $31K | −0.1% of holding | 575,686 | Form 4 |
| 2026-05-07 | BBIO | Sale | 449 @ $69.09 | $31K | −0.0% of holding | 4,378,447 | Form 4 |
| 2026-04-10 | BBIO | Sale | 20,000 @ $74.60 | $1.5M | −3.2% of holding | 595,686 | Form 4 |
| 2026-04-10 | BBIO | Sale | 20,000 @ $74.60 | $1.5M | −0.5% of holding | 4,398,447 | Form 4 |
| 2026-04-09 | BBIO | Sale | 7,800 @ $75.53 | $589K | −0.2% of holding | 4,418,447 | Form 4 |
| 2026-04-09 | BBIO | Sale | 7,500 @ $75.55 | $567K | −1.2% of holding | 615,686 | Form 4 |
| 2026-04-09 | BBIO | Sale | 7,200 @ $73.64 | $530K | −1.1% of holding | 628,486 | Form 4 |
| 2026-04-09 | BBIO | Sale | 7,072 @ $73.64 | $521K | −0.2% of holding | 4,431,375 | Form 4 |
| 2026-04-09 | BBIO | Sale | 5,300 @ $74.60 | $395K | −0.8% of holding | 623,186 | Form 4 |
| 2026-04-09 | BBIO | Sale | 5,128 @ $74.57 | $382K | −0.1% of holding | 4,426,247 | Form 4 |
| 2026-03-13 | BBIO | Sale | 10,310 @ $69.20 | $713K | −1.6% of holding | 635,686 | Form 4 |
| 2026-03-13 | BBIO | Sale | 10,241 @ $68.39 | $700K | −0.2% of holding | 4,448,206 | Form 4 |
| 2026-03-13 | BBIO | Sale | 9,759 @ $69.23 | $676K | −0.2% of holding | 4,438,447 | Form 4 |
| 2026-03-13 | BBIO | Sale | 9,690 @ $68.36 | $662K | −1.5% of holding | 645,996 | Form 4 |
| 2026-03-12 | BBIO | Sale | 14,337 @ $68.48 | $982K | −2.1% of holding | 661,349 | Form 4 |
| 2026-03-12 | BBIO | Sale | 13,885 @ $68.47 | $951K | −0.3% of holding | 4,464,562 | Form 4 |
| 2026-03-12 | BBIO | Sale | 5,815 @ $69.29 | $403K | −0.1% of holding | 4,458,747 | Form 4 |
| 2026-03-12 | BBIO | Sale | 5,363 @ $69.32 | $372K | −0.8% of holding | 655,986 | Form 4 |
| 2026-03-12 | BBIO | Sale | 300 @ $70.15 | $21K | −0.0% of holding | 655,686 | Form 4 |
| 2026-03-12 | BBIO | Sale | 300 @ $70.15 | $21K | −0.0% of holding | 4,458,447 | Form 4 |
| 2026-02-19 | BBIO | Sale | 18,923 @ $71.03 | $1.3M | −7.2% of holding | 243,581 | Form 4 |
| 2026-02-19 | BBIO | Sale | 8,528 @ $72.08 | $615K | −3.5% of holding | 235,053 | Form 4 |
| 2026-02-19 | BBIO | Sale | 602 @ $72.80 | $44K | −0.3% of holding | 234,451 | Form 4 |
| 2026-02-11 | BBIO | Sale | 7,860 @ $70.70 | $556K | −0.2% of holding | 4,490,587 | Form 4 |
| 2026-02-11 | BBIO | Sale | 7,806 @ $70.69 | $552K | −1.1% of holding | 687,880 | Form 4 |
| 2026-02-11 | BBIO | Sale | 4,484 @ $72.64 | $326K | −0.7% of holding | 679,680 | Form 4 |
| 2026-02-11 | BBIO | Sale | 4,404 @ $72.65 | $320K | −0.1% of holding | 4,482,408 | Form 4 |
| 2026-02-11 | BBIO | Sale | 3,994 @ $73.25 | $293K | −0.6% of holding | 675,686 | Form 4 |
| 2026-02-11 | BBIO | Sale | 3,961 @ $73.25 | $290K | −0.1% of holding | 4,478,447 | Form 4 |
| 2026-02-11 | BBIO | Sale | 3,775 @ $71.46 | $270K | −0.1% of holding | 4,486,812 | Form 4 |
| 2026-02-11 | BBIO | Sale | 3,716 @ $71.44 | $265K | −0.5% of holding | 684,164 | Form 4 |
| 2026-02-10 | BBIO | Sale | 14,201 @ $71.80 | $1.0M | −2.0% of holding | 701,485 | Form 4 |
| 2026-02-10 | BBIO | Sale | 14,040 @ $71.80 | $1.0M | −0.3% of holding | 4,504,407 | Form 4 |
| 2026-02-10 | BBIO | Sale | 5,960 @ $72.27 | $431K | −0.1% of holding | 4,498,447 | Form 4 |
| 2026-02-10 | BBIO | Sale | 5,799 @ $72.28 | $419K | −0.8% of holding | 695,686 | Form 4 |
| 2026-01-09 | BBIO | Sale | 10,677 @ $77.46 | $827K | −0.2% of holding | 4,520,302 | Form 4 |
| 2026-01-09 | BBIO | Sale | 10,519 @ $77.61 | $816K | −1.4% of holding | 716,061 | Form 4 |
| 2026-01-09 | BBIO | Sale | 6,955 @ $76.72 | $534K | −0.9% of holding | 726,580 | Form 4 |
| 2026-01-09 | BBIO | Sale | 6,067 @ $76.53 | $464K | −0.1% of holding | 4,530,979 | Form 4 |
| 2026-01-09 | BBIO | Sale | 2,151 @ $75.75 | $163K | −0.3% of holding | 733,535 | Form 4 |
| 2026-01-09 | BBIO | Sale | 1,855 @ $78.10 | $145K | −0.0% of holding | 4,518,447 | Form 4 |
| 2026-01-09 | BBIO | Sale | 1,401 @ $75.61 | $106K | −0.0% of holding | 4,537,046 | Form 4 |
| 2026-01-09 | BBIO | Sale | 375 @ $78.19 | $29K | −0.1% of holding | 715,686 | Form 4 |
| 2026-01-08 | BBIO | Sale | 11,565 @ $73.65 | $852K | −0.3% of holding | 4,546,882 | Form 4 |
85 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-08-16 | BBIO | Withheld for tax | 36,237 | 278,307 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 6,520 | 91,274 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 11,554 | 115,538 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 19,599 | 117,596 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 33,544 | 67,088 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 6,520 | 314,544 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 6,520 | 314,544 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 11,554 | 308,024 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 19,599 | 296,470 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 33,544 | 276,871 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 11,554 | 308,024 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 19,599 | 296,470 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 33,544 | 276,871 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 6,520 | 314,544 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 11,554 | 308,024 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 19,599 | 296,470 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 33,544 | 276,871 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 6,520 | 314,544 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 11,554 | 308,024 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 19,599 | 296,470 | Form 4 |
| 2026-08-16 | BBIO | Option exercise | 33,544 | 276,871 | Form 4 |
| 2026-06-16 | BBOT | Award / grant | 31,675 | 31,675 | Form 4 |
| 2026-05-16 | BBIO | Withheld for tax | 36,236 | 269,430 | Form 4 |
| 2026-05-16 | BBIO | Option exercise | 19,599 | 137,195 | Form 4 |
| 2026-05-16 | BBIO | Option exercise | 11,553 | 127,092 | Form 4 |
| 2026-05-16 | BBIO | Option exercise | 33,544 | 100,632 | Form 4 |
| 2026-05-16 | BBIO | Option exercise | 6,519 | 97,794 | Form 4 |
| 2026-05-16 | BBIO | Option exercise | 11,553 | 299,147 | Form 4 |
| 2026-05-16 | BBIO | Option exercise | 33,544 | 267,995 | Form 4 |
| 2026-05-16 | BBIO | Option exercise | 6,519 | 305,666 | Form 4 |
| 2026-05-16 | BBIO | Option exercise | 11,553 | 299,147 | Form 4 |
| 2026-05-16 | BBIO | Option exercise | 19,599 | 287,594 | Form 4 |
| 2026-05-16 | BBIO | Option exercise | 6,519 | 305,666 | Form 4 |
| 2026-05-16 | BBIO | Option exercise | 19,599 | 287,594 | Form 4 |
| 2026-05-16 | BBIO | Option exercise | 33,544 | 267,995 | Form 4 |
| 2026-03-27 | MAZE | Award / grant | 33,417 | 33,417 | Form 4 |
| 2026-03-17 | BBIO | Award / grant | 104,313 | 104,313 | Form 4 |
| 2026-03-17 | BBIO | Award / grant | 40,570 | 40,570 | Form 4 |
| 2026-02-16 | BBIO | Withheld for tax | 30,970 | 262,504 | Form 4 |
| 2026-02-16 | BBIO | Option exercise | 11,554 | 138,645 | 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.