BC
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
T. Rowe Price Investment Management, Inc.
· Added
Change
+3.4M
Date
Q1 2026
|
T. Rowe Price Investment Management, Inc. | Added· Q1 2026 | – | +3.4M | – | Q1 2026 | |||||
|
Vestal Point Capital, LP
· Added
Change
+1.9M
Date
Q1 2026
|
Vestal Point Capital, LP | Added· Q1 2026 | – | +1.9M | – | Q1 2026 | |||||
|
Deep Track Capital, LP
· Added
Change
+1.4M
Date
Q1 2026
|
Deep Track Capital, LP | Added· Q1 2026 | – | +1.4M | – | Q1 2026 | |||||
|
Jones Hill Capital LP
· New
Change
+1.3M
Date
Q1 2026
|
Jones Hill Capital LP | New· Q1 2026 | – | +1.3M | – | Q1 2026 | |||||
|
FMR LLC
· Reduced
Change
−1.2M
Δ Own
−37.2%
Date
Q1 2026
|
FMR LLC | Reduced· Q1 2026 | – | −1.2M | −37.2% | Q1 2026 | |||||
|
Royalty Pharma Sub-Manager, LLC
· Added
Change
+1.1M
Date
Q1 2026
|
Royalty Pharma Sub-Manager, LLC | Added· Q1 2026 | – | +1.1M | – | Q1 2026 | |||||
|
Atle Fund Management AB
· Added
Change
+1.1M
Date
Q1 2026
|
Atle Fund Management AB | Added· Q1 2026 | – | +1.1M | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Added
Change
+887K
Δ Own
+114.9%
Date
Q1 2026
|
Citadel Advisors LLC | Added· Q1 2026 | – | +887K | +114.9% | Q1 2026 | |||||
|
Janus Henderson Group PLC
· Added
Change
+693K
Date
Q1 2026
|
Janus Henderson Group PLC | Added· Q1 2026 | – | +693K | – | Q1 2026 | |||||
|
Siren, L.L.C.
· Added
Change
+586K
Date
Q1 2026
|
Siren, L.L.C. | Added· Q1 2026 | – | +586K | – | Q1 2026 | |||||
|
Orbimed Advisors LLC
· Added
Change
+458K
Date
Q1 2026
|
Orbimed Advisors LLC | Added· Q1 2026 | – | +458K | – | Q1 2026 | |||||
|
BlackRock
· Added
Change
+315K
Date
Q1 2026
|
BlackRock | Added· Q1 2026 | – | +315K | – | Q1 2026 | |||||
|
Morgan Stanley
· Added
Change
+312K
Date
Q1 2026
|
Morgan Stanley | Added· Q1 2026 | – | +312K | – | Q1 2026 | |||||
|
Ra Capital Management, L.P.
· Added
Change
+300K
Date
Q1 2026
|
Ra Capital Management, L.P. | Added· Q1 2026 | – | +300K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Reduced
Change
−278K
Date
Q1 2026
|
Millennium Management LLC | Reduced· Q1 2026 | – | −278K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mazumdar Claire
· Director
2 operations
−$284K
|
Mazumdar Claire | Director | 2 operations | $28.42–$29.68 | −10K | −$284K | 362K | −2.7% | Jul 10, 2026 | Jul 14, 2026 | |||||||||
|
Mazumdar Claire
· Director
2 operations
0
|
Mazumdar Claire | Director | 2 operations | $3.79 | 0 | – | 121K | – | Jul 10, 2026 | Jul 14, 2026 | |||||||||
|
Cohlhepp Ryan
· Director
Sell
−$16K
|
Cohlhepp Ryan | Director | Sell | $29.00 | −536 | −$16K | 182K | −0.3% | Jul 9, 2026 | Jul 10, 2026 | |||||||||
|
Cohlhepp Ryan
· Director
3 operations
−$818K
|
Cohlhepp Ryan | Director | 3 operations | $28.76–$30.35 | −28K | −$818K | 182K | −13.4% | Jul 8, 2026 | Jul 10, 2026 | |||||||||
|
Cohlhepp Ryan
· Director
2 operations
0
|
Cohlhepp Ryan | Director | 2 operations | $3.79 | 0 | – | 71K | – | Jul 8, 2026 | Jul 10, 2026 | |||||||||
|
Hyep Ivan
· Officer
3 operations
−$808K
|
Hyep Ivan | Officer | 3 operations | $28.60–$30.31 | −28K | −$808K | 130K | −17.7% | Jul 8, 2026 | Jul 10, 2026 | |||||||||
|
Hyep Ivan
· Officer
3 operations
0
|
Hyep Ivan | Officer | 3 operations | $3.79 | 0 | – | 39K | – | Jul 8, 2026 | Jul 10, 2026 | |||||||||
|
Ra Capital Management, L.P.
· Director
Grant (A)
19K
|
Ra Capital Management, L.P. | Director | Grant (A) | – | 19K | – | 19K | – | Jun 9, 2026 | Jun 10, 2026 | |||||||||
|
Bowden Christopher
· Director
Grant (A)
19K
|
Bowden Christopher | Director | Grant (A) | – | 19K | – | 19K | – | Jun 9, 2026 | Jun 10, 2026 | |||||||||
|
Haviland Kate
· Director
Grant (A)
19K
|
Haviland Kate | Director | Grant (A) | – | 19K | – | 19K | – | Jun 9, 2026 | Jun 10, 2026 | |||||||||
|
Mazumdar-Shaw Kiran
· Director
Grant (A)
19K
|
Mazumdar-Shaw Kiran | Director | Grant (A) | – | 19K | – | 19K | – | Jun 9, 2026 | Jun 10, 2026 | |||||||||
|
Robertson Scott M.
· Director
Grant (A)
19K
|
Robertson Scott M. | Director | Grant (A) | – | 19K | – | 19K | – | Jun 9, 2026 | Jun 10, 2026 | |||||||||
|
Powell Michael
· Director
Grant (A)
19K
|
Powell Michael | Director | Grant (A) | – | 19K | – | 19K | – | Jun 9, 2026 | Jun 10, 2026 | |||||||||
|
Simson Jake
· Director
Grant (A)
19K
|
Simson Jake | Director | Grant (A) | – | 19K | – | 19K | – | Jun 9, 2026 | Jun 10, 2026 | |||||||||
|
Hyep Ivan
· CFO
Sell
−$188K
|
Hyep Ivan | CFO | Sell | $20.42 | −9K | −$188K | 145K | – | May 21, 2026 | May 26, 2026 | |||||||||
142 reporting institutions disclosed BCAX position changes in the Q1 2026 snapshot.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.