Blackstone Inc.
· Reduced
Change
−4.3M
Date
Q1 2026
CM
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Blackstone Inc.
· Reduced
Change
−4.3M
Date
Q1 2026
|
Blackstone Inc. | Reduced· Q1 2026 | – | −4.3M | – | Q1 2026 | |||||
|
Adage Capital Partners Gp, L.L.C.
· Added
Change
+4.0M
Date
Q1 2026
|
Adage Capital Partners Gp, L.L.C. | Added· Q1 2026 | – | +4.0M | – | Q1 2026 | |||||
|
Millennium Management LLC
· Reduced
Change
−2.3M
Date
Q1 2026
|
Millennium Management LLC | Reduced· Q1 2026 | – | −2.3M | – | Q1 2026 | |||||
|
UBS Group AG
· Added
Change
+2.2M
Date
Q1 2026
|
UBS Group AG | Added· Q1 2026 | – | +2.2M | – | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· Added
Change
+2.1M
Date
Q1 2026
|
Qube Research & Technologies Ltd | Added· Q1 2026 | – | +2.1M | – | Q1 2026 | |||||
|
Logos Global Management LP
· Added
Change
+2.0M
Date
Q1 2026
|
Logos Global Management LP | Added· Q1 2026 | – | +2.0M | – | Q1 2026 | |||||
|
State Street
· Added
Change
+1.8M
Date
Q1 2026
|
State Street | Added· Q1 2026 | – | +1.8M | – | Q1 2026 | |||||
|
Rtw Investments, LP
· Added
Change
+1.7M
Date
Q1 2026
|
Rtw Investments, LP | Added· Q1 2026 | – | +1.7M | – | Q1 2026 | |||||
|
Trails Edge Capital Partners, LP
· Exited
Change
−1.4M
Δ Own
−100.0%
Date
Q1 2026
|
Trails Edge Capital Partners, LP | Exited· Q1 2026 | – | −1.4M | −100.0% | Q1 2026 | |||||
|
Great Point Partners LLC
· New
Change
+1.4M
Date
Q1 2026
|
Great Point Partners LLC | New· Q1 2026 | – | +1.4M | – | Q1 2026 | |||||
|
Change
+1.3M
Date
Q1 2026
|
Fisher Asset Management, LLC | New· Q1 2026 | – | +1.3M | – | Q1 2026 | |||||
|
Royce & Associates LP
· Added
Change
+1.3M
Date
Q1 2026
|
Royce & Associates LP | Added· Q1 2026 | – | +1.3M | – | Q1 2026 | |||||
|
Sofinnova Investments, Inc.
· Reduced
Change
−1.3M
Date
Q1 2026
|
Sofinnova Investments, Inc. | Reduced· Q1 2026 | – | −1.3M | – | Q1 2026 | |||||
|
Marshall Wace, LLP
· Exited
Change
−1.3M
Δ Own
−100.0%
Date
Q1 2026
|
Marshall Wace, LLP | Exited· Q1 2026 | – | −1.3M | −100.0% | Q1 2026 | |||||
|
Palo Alto Investors LP
· Reduced
Change
−1.0M
Date
Q1 2026
|
Palo Alto Investors LP | Reduced· Q1 2026 | – | −1.0M | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Anderman Jonathan
· Officer
Grant (A)
$47K
|
Anderman Jonathan | Officer | Grant (A) | $1.89 | 25K | $47K | 196K | – | Apr 29, 2026 | Apr 29, 2026 | |||||||||
|
Lerner Neil
· Officer
Grant (A)
$28K
|
Lerner Neil | Officer | Grant (A) | $1.89 | 15K | $28K | 398K | – | Apr 29, 2026 | Apr 29, 2026 | |||||||||
|
Schuetz Thomas J.
· Director, Officer
Tax withholding or exercise payment (F)
-$239K
|
Schuetz Thomas J. | Director, Officer | Tax withholding or exercise payment (F) | $6.52 | -37K | -$239K | 6.6M | – | Feb 8, 2026 | Feb 10, 2026 | |||||||||
|
Schuetz Thomas J.
· Director, Officer
Tax withholding or exercise payment (F)
-$250K
|
Schuetz Thomas J. | Director, Officer | Tax withholding or exercise payment (F) | $5.35 | -47K | -$250K | 6.6M | – | Jan 9, 2026 | Jan 12, 2026 | |||||||||
|
Shin Barry
· Officer
2 operations
795K
|
Shin Barry | Officer | 2 operations | $5.17 | 795K | – | 670K | – | Jan 2, 2026 | Jan 5, 2026 | |||||||||
|
Sirard Cynthia
· Officer
Grant (A)
1.0M
|
Sirard Cynthia | Officer | Grant (A) | – | 1.0M | – | 1.0M | – | Jan 2, 2026 | Jan 5, 2026 | |||||||||
|
Schuetz Thomas J.
· Director, Officer
2 operations
2.2M
|
Schuetz Thomas J. | Director, Officer | 2 operations | $5.17 | 2.2M | – | 2.0M | – | Jan 2, 2026 | Jan 5, 2026 | |||||||||
|
Prasad Arjun
· Officer
Grant (A)
1.0M
|
Prasad Arjun | Officer | Grant (A) | – | 1.0M | – | 1.0M | – | Jan 2, 2026 | Jan 5, 2026 | |||||||||
|
Lindahl Richard S.
· Director
Grant (A)
90K
|
Lindahl Richard S. | Director | Grant (A) | – | 90K | – | 90K | – | Jan 2, 2026 | Jan 5, 2026 | |||||||||
|
Chiniara Ellen
· Director
Grant (A)
90K
|
Chiniara Ellen | Director | Grant (A) | – | 90K | – | 90K | – | Jan 2, 2026 | Jan 5, 2026 | |||||||||
|
Lerner Neil
· Officer
2 operations
498K
|
Lerner Neil | Officer | 2 operations | $5.17 | 498K | – | 435K | – | Jan 2, 2026 | Jan 5, 2026 | |||||||||
|
Gray Mary Ann
· Director
Grant (A)
90K
|
Gray Mary Ann | Director | Grant (A) | – | 90K | – | 90K | – | Jan 2, 2026 | Jan 5, 2026 | |||||||||
|
Boylan James P.
· Director
Grant (A)
90K
|
Boylan James P. | Director | Grant (A) | – | 90K | – | 90K | – | Jan 2, 2026 | Jan 5, 2026 | |||||||||
|
Gordon Carl L.
· Director
Grant (A)
90K
|
Gordon Carl L. | Director | Grant (A) | – | 90K | – | 90K | – | Jan 2, 2026 | Jan 5, 2026 | |||||||||
|
Ferneau Philip
· Director
Grant (A)
90K
|
Ferneau Philip | Director | Grant (A) | – | 90K | – | 90K | – | Jan 2, 2026 | Jan 5, 2026 | |||||||||
N
A
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A
A
184 reporting institutions disclosed CMPX 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.