Tcg Crossover Management, LLC
· Exited
Change
−2.6M
Δ Own
−100.0%
Date
Q1 2026
RA
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Tcg Crossover Management, LLC
· Exited
Change
−2.6M
Δ Own
−100.0%
Date
Q1 2026
|
Tcg Crossover Management, LLC | Exited· Q1 2026 | – | −2.6M | −100.0% | Q1 2026 | |||||
|
Fcpm III Services B.V.
· Exited
Change
−1.8M
Δ Own
−100.0%
Date
Q1 2026
|
Fcpm III Services B.V. | Exited· Q1 2026 | – | −1.8M | −100.0% | Q1 2026 | |||||
|
Orbimed Advisors LLC
· Exited
Change
−1.6M
Δ Own
−100.0%
Date
Q1 2026
|
Orbimed Advisors LLC | Exited· Q1 2026 | – | −1.6M | −100.0% | Q1 2026 | |||||
|
Rtw Investments, LP
· Exited
Change
−1.6M
Δ Own
−100.0%
Date
Q1 2026
|
Rtw Investments, LP | Exited· Q1 2026 | – | −1.6M | −100.0% | Q1 2026 | |||||
|
Foresite Capital Management VI LLC
· Exited
Change
−1.6M
Δ Own
−100.0%
Date
Q1 2026
|
Foresite Capital Management VI LLC | Exited· Q1 2026 | – | −1.6M | −100.0% | Q1 2026 | |||||
|
Siren, L.L.C.
· Exited
Change
−1.4M
Δ Own
−100.0%
Date
Q1 2026
|
Siren, L.L.C. | Exited· Q1 2026 | – | −1.4M | −100.0% | Q1 2026 | |||||
|
Frazier Life Sciences Management, L.P.
· Exited
Change
−983K
Δ Own
−100.0%
Date
Q1 2026
|
Frazier Life Sciences Management, L.P. | Exited· Q1 2026 | – | −983K | −100.0% | Q1 2026 | |||||
|
Braidwell LP
· Exited
Change
−930K
Δ Own
−100.0%
Date
Q1 2026
|
Braidwell LP | Exited· Q1 2026 | – | −930K | −100.0% | Q1 2026 | |||||
|
Redmile Group, LLC
· Exited
Change
−886K
Δ Own
−100.0%
Date
Q1 2026
|
Redmile Group, LLC | Exited· Q1 2026 | – | −886K | −100.0% | Q1 2026 | |||||
|
Perceptive Advisors LLC
· Exited
Change
−826K
Δ Own
−100.0%
Date
Q1 2026
|
Perceptive Advisors LLC | Exited· Q1 2026 | – | −826K | −100.0% | Q1 2026 | |||||
|
Soleus Capital Management, L.P.
· Exited
Change
−764K
Δ Own
−100.0%
Date
Q1 2026
|
Soleus Capital Management, L.P. | Exited· Q1 2026 | – | −764K | −100.0% | Q1 2026 | |||||
|
Nantahala Capital Management, LLC
· Exited
Change
−754K
Δ Own
−100.0%
Date
Q1 2026
|
Nantahala Capital Management, LLC | Exited· Q1 2026 | – | −754K | −100.0% | Q1 2026 | |||||
|
Ikarian Capital, LLC
· Exited
Change
−665K
Δ Own
−100.0%
Date
Q1 2026
|
Ikarian Capital, LLC | Exited· Q1 2026 | – | −665K | −100.0% | Q1 2026 | |||||
|
Caligan Partners LP
· Exited
Change
−644K
Δ Own
−100.0%
Date
Q1 2026
|
Caligan Partners LP | Exited· Q1 2026 | – | −644K | −100.0% | Q1 2026 | |||||
|
State Street
· Exited
Change
−640K
Δ Own
−100.0%
Date
Q1 2026
|
State Street | Exited· Q1 2026 | – | −640K | −100.0% | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Lyons-Williams Lori
· Director
Other Form 4 events
-5K
|
Lyons-Williams Lori | Director | Other Form 4 events | – | -5K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Lyons-Williams Lori
· Director
5 operations
-42K
|
Lyons-Williams Lori | Director | 5 operations | – | -42K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Gray Mary Ann
· Director
Other Form 4 events
-5K
|
Gray Mary Ann | Director | Other Form 4 events | – | -5K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Gray Mary Ann
· Director
13 operations
-55K
|
Gray Mary Ann | Director | 13 operations | – | -55K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Giordano Michael F.
· Director
Other Form 4 events
-5K
|
Giordano Michael F. | Director | Other Form 4 events | – | -5K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Giordano Michael F.
· Director
9 operations
-43K
|
Giordano Michael F. | Director | 9 operations | – | -43K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Dombkowski Ashley L.
· Director
Other Form 4 events
-5K
|
Dombkowski Ashley L. | Director | Other Form 4 events | – | -5K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Dombkowski Ashley L.
· Director
Shares transferred outside the market (D), often for tax or as a gift, not a market sale
-25K
|
Dombkowski Ashley L. | Director | Shares transferred outside the market (D), often for tax or as a gift, not a market sale | – | -25K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Young Rodney Kb
· Officer
Other Form 4 events
-3K
|
Young Rodney Kb | Officer | Other Form 4 events | – | -3K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Young Rodney Kb
· Officer
7 operations
-202K
|
Young Rodney Kb | Officer | 7 operations | – | -202K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Brockstedt Dirk G.
· Officer
Other Form 4 events
-5K
|
Brockstedt Dirk G. | Officer | Other Form 4 events | – | -5K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Brockstedt Dirk G.
· Officer
10 operations
-160K
|
Brockstedt Dirk G. | Officer | 10 operations | – | -160K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Wong Brian Russell
· Director, Officer
Other Form 4 events
-64K
|
Wong Brian Russell | Director, Officer | Other Form 4 events | – | -64K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Wong Brian Russell
· Director, Officer
10 operations
-763K
|
Wong Brian Russell | Director, Officer | 10 operations | – | -763K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Kozick Linda
· Director
Other Form 4 events
-5K
|
Kozick Linda | Director | Other Form 4 events | – | -5K | – | 0 | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
100 reporting institutions disclosed RAPT 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.