Rtw Investments, LP
· Added
Change
+2.5M
Date
Q1 2026
CE
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Rtw Investments, LP
· Added
Change
+2.5M
Date
Q1 2026
|
Rtw Investments, LP | Added· Q1 2026 | – | +2.5M | – | Q1 2026 | |||||
|
Toronto Dominion Bank
· New
Change
+883K
Date
Q1 2026
|
Toronto Dominion Bank | New· Q1 2026 | – | +883K | – | Q1 2026 | |||||
|
Point72 Asset Management, L.P.
· New
Change
+280K
Date
Q1 2026
|
Point72 Asset Management, L.P. | New· Q1 2026 | – | +280K | – | Q1 2026 | |||||
|
Avoro Capital Advisors LLC
· Added
Change
+264K
Date
Q1 2026
|
Avoro Capital Advisors LLC | Added· Q1 2026 | – | +264K | – | Q1 2026 | |||||
|
Lord, Abbett & Co. LLC
· Added
Change
+258K
Date
Q1 2026
|
Lord, Abbett & Co. LLC | Added· Q1 2026 | – | +258K | – | Q1 2026 | |||||
|
First Turn Management, LLC
· New
Change
+211K
Date
Q1 2026
|
First Turn Management, LLC | New· Q1 2026 | – | +211K | – | Q1 2026 | |||||
|
BlackRock
· Added
Change
+171K
Date
Q1 2026
|
BlackRock | Added· Q1 2026 | – | +171K | – | Q1 2026 | |||||
|
UBS Group AG
· Added
Change
+139K
Date
Q1 2026
|
UBS Group AG | Added· Q1 2026 | – | +139K | – | Q1 2026 | |||||
|
Federated Hermes, Inc.
· New
Change
+119K
Date
Q1 2026
|
Federated Hermes, Inc. | New· Q1 2026 | – | +119K | – | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Added
Change
+112K
Date
Q1 2026
|
Goldman Sachs Group Inc | Added· Q1 2026 | – | +112K | – | Q1 2026 | |||||
|
Atle Fund Management AB
· Added
Change
+99K
Date
Q1 2026
|
Atle Fund Management AB | Added· Q1 2026 | – | +99K | – | Q1 2026 | |||||
|
Vanguard
· Added
Change
+86K
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | – | +86K | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Added
Change
+85K
Δ Own
+180.4%
Date
Q1 2026
|
Citadel Advisors LLC | Added· Q1 2026 | – | +85K | +180.4% | Q1 2026 | |||||
|
Alyeska Investment Group, L.P.
· New
Change
+75K
Date
Q1 2026
|
Alyeska Investment Group, L.P. | New· Q1 2026 | – | +75K | – | Q1 2026 | |||||
|
Freestone Grove Partners LP
· New
Change
+71K
Date
Q1 2026
|
Freestone Grove Partners LP | New· Q1 2026 | – | +71K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Baker Bros. Advisors LP
· Other
2 operations
−$318M
|
Baker Bros. Advisors LP | Other | 2 operations | $102.50 | −3.1M | −$318M | 4.4M | – | Jul 14, 2026 | Jul 16, 2026 | |||||||||
|
Murphy Polly A.
· Director
2 operations
0
|
Murphy Polly A. | Director | 2 operations | – | 0 | – | 14K | – | Jun 10, 2026 | Jun 12, 2026 | |||||||||
|
Buller Richard E.
· Director
2 operations
0
|
Buller Richard E. | Director | 2 operations | – | 0 | – | 13K | – | Jun 10, 2026 | Jun 12, 2026 | |||||||||
|
Murphy Polly A.
· Director
Grant (A)
2K
|
Murphy Polly A. | Director | Grant (A) | – | 2K | – | 7K | – | Jun 5, 2026 | Jun 9, 2026 | |||||||||
|
Dalvey David
· Director
Grant (A)
2K
|
Dalvey David | Director | Grant (A) | – | 2K | – | 2K | – | Jun 5, 2026 | Jun 9, 2026 | |||||||||
|
Romp Charles R.
· Director
Grant (A)
2K
|
Romp Charles R. | Director | Grant (A) | – | 2K | – | 2K | – | Jun 5, 2026 | Jun 9, 2026 | |||||||||
|
Nigon Richard
· Director
Grant (A)
2K
|
Nigon Richard | Director | Grant (A) | – | 2K | – | 81K | – | Jun 5, 2026 | Jun 9, 2026 | |||||||||
|
Furcht Leo
· Director
Grant (A)
2K
|
Furcht Leo | Director | Grant (A) | – | 2K | – | 13K | – | Jun 5, 2026 | Jun 9, 2026 | |||||||||
|
Buller Richard E.
· Director
Grant (A)
2K
|
Buller Richard E. | Director | Grant (A) | – | 2K | – | 2K | – | Jun 5, 2026 | Jun 9, 2026 | |||||||||
|
Laing Lance G.
· Director
2 operations
0
|
Laing Lance G. | Director | 2 operations | $9.89 | 0 | – | 20K | – | Jun 2, 2026 | Jun 4, 2026 | |||||||||
|
Buller Richard E.
· Director
2 operations
0
|
Buller Richard E. | Director | 2 operations | – | 0 | – | 8K | – | May 19, 2026 | May 20, 2026 | |||||||||
|
Dalvey David
· Director
Sell
−$3.5M
|
Dalvey David | Director | Sell | $140.68 | −25K | −$3.5M | 65K | – | May 4, 2026 | May 6, 2026 | |||||||||
|
Buller Richard E.
· Director
6 operations
−$1.3M
|
Buller Richard E. | Director | 6 operations | $137.00–$143.24 | −9K | −$1.3M | 7K | – | May 4, 2026 | May 6, 2026 | |||||||||
|
Buller Richard E.
· Director
2 operations
0
|
Buller Richard E. | Director | 2 operations | $5.10 | 0 | – | 654 | – | May 4, 2026 | May 6, 2026 | |||||||||
|
Nigon Richard
· Director
Gift (G)
-10K
|
Nigon Richard | Director | Gift (G) | – | -10K | – | 79K | – | Apr 9, 2026 | Apr 13, 2026 | |||||||||
N
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269 reporting institutions disclosed CELC 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.