Braidwell LP
· Reduced
Change
−2.9M
Date
Q1 2026
EW
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Braidwell LP
· Reduced
Change
−2.9M
Date
Q1 2026
|
Braidwell LP | Reduced· Q1 2026 | – | −2.9M | – | Q1 2026 | |||||
|
Janus Henderson Group PLC
· Added
Change
+1.3M
Date
Q1 2026
|
Janus Henderson Group PLC | Added· Q1 2026 | – | +1.3M | – | Q1 2026 | |||||
|
Paradigm Biocapital Advisors LP
· Added
Change
+824K
Date
Q1 2026
|
Paradigm Biocapital Advisors LP | Added· Q1 2026 | – | +824K | – | Q1 2026 | |||||
|
UBS Group AG
· Reduced
Change
−806K
Date
Q1 2026
|
UBS Group AG | Reduced· Q1 2026 | – | −806K | – | Q1 2026 | |||||
|
Deerfield Management Company, L.P.
· Exited
Change
−766K
Δ Own
−100.0%
Date
Q1 2026
|
Deerfield Management Company, L.P. | Exited· Q1 2026 | – | −766K | −100.0% | Q1 2026 | |||||
|
Norges
· Exited
Change
−751K
Δ Own
−100.0%
Date
Q1 2026
|
Norges | Exited· Q1 2026 | – | −751K | −100.0% | Q1 2026 | |||||
|
Alliancebernstein L.P.
· Added
Change
+686K
Date
Q1 2026
|
Alliancebernstein L.P. | Added· Q1 2026 | – | +686K | – | Q1 2026 | |||||
|
Morgan Stanley
· Reduced
Change
−665K
Date
Q1 2026
|
Morgan Stanley | Reduced· Q1 2026 | – | −665K | – | Q1 2026 | |||||
|
First Light Asset Management, LLC
· Reduced
Change
−572K
Date
Q1 2026
|
First Light Asset Management, LLC | Reduced· Q1 2026 | – | −572K | – | Q1 2026 | |||||
|
Soleus Capital Management, L.P.
· Added
Change
+540K
Date
Q1 2026
|
Soleus Capital Management, L.P. | Added· Q1 2026 | – | +540K | – | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· Added
Change
+530K
Date
Q1 2026
|
Qube Research & Technologies Ltd | Added· Q1 2026 | – | +530K | – | Q1 2026 | |||||
|
Eventide Asset Management, LLC
· Reduced
Change
−418K
Date
Q1 2026
|
Eventide Asset Management, LLC | Reduced· Q1 2026 | – | −418K | – | Q1 2026 | |||||
|
Eversept Partners, LP
· Exited
Change
−337K
Δ Own
−100.0%
Date
Q1 2026
|
Eversept Partners, LP | Exited· Q1 2026 | – | −337K | −100.0% | Q1 2026 | |||||
|
FMR LLC
· Added
Change
+324K
Δ Own
+46.8%
Date
Q1 2026
|
FMR LLC | Added· Q1 2026 | – | +324K | +46.8% | Q1 2026 | |||||
|
Citadel Advisors LLC
· Added
Change
+306K
Δ Own
+248.5%
Date
Q1 2026
|
Citadel Advisors LLC | Added· Q1 2026 | – | +306K | +248.5% | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Russell Alan J.
· Director
2 operations
−$7.9M
|
Russell Alan J. | Director | 2 operations | $39.41 | −200K | −$7.9M | 25K | −89.1% | Jul 1, 2026 | Jul 2, 2026 | |||||||||
|
Russell Alan J.
· Director
4 operations
0
|
Russell Alan J. | Director | 4 operations | $0.18–$0.45 | 0 | – | 1.1M | – | Jul 1, 2026 | Jul 2, 2026 | |||||||||
|
Fox Jonathan C.
· Director
Grant (A)
319
|
Fox Jonathan C. | Director | Grant (A) | – | 319 | – | 25K | +1.3% | Jul 1, 2026 | Jul 1, 2026 | |||||||||
|
Root Jonathan D.
· Director
Grant (A)
16K
|
Root Jonathan D. | Director | Grant (A) | – | 16K | – | 16K | – | Jun 5, 2026 | Jul 17, 2026 | |||||||||
|
Brege Laura
· Director
Grant (A)
16K
|
Brege Laura | Director | Grant (A) | – | 16K | – | 16K | – | Jun 5, 2026 | Jun 17, 2026 | |||||||||
|
Thompson Peter A.
· Director
Grant (A)
16K
|
Thompson Peter A. | Director | Grant (A) | – | 16K | – | 16K | – | Jun 5, 2026 | Jun 17, 2026 | |||||||||
|
Morris Arlene
· Director
Grant (A)
16K
|
Morris Arlene | Director | Grant (A) | – | 16K | – | 16K | – | Jun 5, 2026 | Jun 17, 2026 | |||||||||
|
Edris Badreddin
· Director
2 operations
14K
|
Edris Badreddin | Director | 2 operations | – | 14K | – | 8K | – | Jun 5, 2026 | Jun 16, 2026 | |||||||||
|
Martin Christopher Nathan
· Director
Grant (A)
16K
|
Martin Christopher Nathan | Director | Grant (A) | – | 16K | – | 16K | – | Jun 5, 2026 | Jun 16, 2026 | |||||||||
|
Fox Jonathan C.
· Director
Grant (A)
16K
|
Fox Jonathan C. | Director | Grant (A) | – | 16K | – | 16K | – | Jun 5, 2026 | Jun 16, 2026 | |||||||||
|
Donovan Joanne M.
· Officer
Sell
−$1.9M
|
Donovan Joanne M. | Officer | Sell | $38.57 | −50K | −$1.9M | 4K | – | May 5, 2026 | May 5, 2026 | |||||||||
|
Donovan Joanne M.
· Officer
2 operations
0
|
Donovan Joanne M. | Officer | 2 operations | $7.08 | 0 | – | 75K | – | May 5, 2026 | May 5, 2026 | |||||||||
|
Donovan Joanne M.
· Officer
Sell
−$164K
|
Donovan Joanne M. | Officer | Sell | $31.29 | −5K | −$164K | 4K | – | May 4, 2026 | May 5, 2026 | |||||||||
|
Fox Jonathan C.
· Director
Grant (A)
339
|
Fox Jonathan C. | Director | Grant (A) | – | 339 | – | 25K | – | Apr 1, 2026 | Apr 3, 2026 | |||||||||
|
Donovan Joanne M.
· Officer
Sell
−$926K
|
Donovan Joanne M. | Officer | Sell | $32.31 | −29K | −$926K | 10K | – | Apr 1, 2026 | Apr 2, 2026 | |||||||||
N
A
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A
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191 reporting institutions disclosed EWTX 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.