American Century Companies Inc
· Added
Change
+931K
Date
Q1 2026
GP
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
American Century Companies Inc
· Added
Change
+931K
Date
Q1 2026
|
American Century Companies Inc | Added· Q1 2026 | – | +931K | – | Q1 2026 | |||||
|
Paradigm Biocapital Advisors LP
· New
Change
+545K
Date
Q1 2026
|
Paradigm Biocapital Advisors LP | New· Q1 2026 | – | +545K | – | Q1 2026 | |||||
|
Principal Financial Group Inc
· Added
Change
+470K
Date
Q1 2026
|
Principal Financial Group Inc | Added· Q1 2026 | – | +470K | – | Q1 2026 | |||||
|
T. Rowe Price Associates
· Added
Change
+330K
Date
Q1 2026
|
T. Rowe Price Associates | Added· Q1 2026 | – | +330K | – | Q1 2026 | |||||
|
Orbimed Advisors LLC
· Added
Change
+314K
Date
Q1 2026
|
Orbimed Advisors LLC | Added· Q1 2026 | – | +314K | – | Q1 2026 | |||||
|
Capitolis Liquid Global Markets LLC
· Added
Change
+273K
Date
Q1 2026
|
Capitolis Liquid Global Markets LLC | Added· Q1 2026 | – | +273K | – | Q1 2026 | |||||
|
Janus Henderson Group PLC
· Added
Change
+265K
Date
Q1 2026
|
Janus Henderson Group PLC | Added· Q1 2026 | – | +265K | – | Q1 2026 | |||||
|
Siren, L.L.C.
· Added
Change
+250K
Date
Q1 2026
|
Siren, L.L.C. | Added· Q1 2026 | – | +250K | – | Q1 2026 | |||||
|
Seb Asset Management AB
· New
Change
+245K
Date
Q1 2026
|
Seb Asset Management AB | New· Q1 2026 | – | +245K | – | Q1 2026 | |||||
|
Pentwater Capital Management LP
· New
Change
+245K
Date
Q1 2026
|
Pentwater Capital Management LP | New· Q1 2026 | – | +245K | – | Q1 2026 | |||||
|
Morgan Stanley
· Added
Change
+218K
Date
Q1 2026
|
Morgan Stanley | Added· Q1 2026 | – | +218K | – | Q1 2026 | |||||
|
JPMorgan Chase & Co
· Added
Change
+200K
Date
Q1 2026
|
JPMorgan Chase & Co | Added· Q1 2026 | – | +200K | – | Q1 2026 | |||||
|
D. E. Shaw & Co., Inc.
· Added
Change
+196K
Δ Own
+2274.9%
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | Added· Q1 2026 | – | +196K | +2274.9% | Q1 2026 | |||||
|
Bank of America Corp
· Added
Change
+195K
Date
Q1 2026
|
Bank of America Corp | Added· Q1 2026 | – | +195K | – | Q1 2026 | |||||
|
Parkman Healthcare Partners LLC
· Added
Change
+177K
Date
Q1 2026
|
Parkman Healthcare Partners LLC | Added· Q1 2026 | – | +177K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Lin Xichen
· Officer
2 operations
-$402K
|
Lin Xichen | Officer | 2 operations | $50.80–$51.71 | -8K | -$402K | 0 | – | Jul 14, 2026 | Jul 15, 2026 | |||||||||
|
Lin Xichen
· Officer
4 operations
-16K
|
Lin Xichen | Officer | 4 operations | $0.34 | -16K | – | 8K | – | Jul 14, 2026 | Jul 15, 2026 | |||||||||
|
Lin Xichen
· Officer
Other Form 4 event (S, derivative)
-$387K
|
Lin Xichen | Officer | Other Form 4 event (S, derivative) | $49.08 | -8K | -$387K | 0 | – | Jun 25, 2026 | Jun 29, 2026 | |||||||||
|
Lin Xichen
· Officer
4 operations
-16K
|
Lin Xichen | Officer | 4 operations | $0.34 | -16K | – | 8K | – | Jun 25, 2026 | Jun 29, 2026 | |||||||||
|
Russell Angus C.
· Director
Grant (A)
39K
|
Russell Angus C. | Director | Grant (A) | – | 39K | – | 39K | – | Jun 17, 2026 | Jun 18, 2026 | |||||||||
|
Love Ted W.
· Director
Grant (A)
39K
|
Love Ted W. | Director | Grant (A) | – | 39K | – | 39K | – | Jun 17, 2026 | Jun 18, 2026 | |||||||||
|
Waldstreicher Joanne
· Director
Grant (A)
39K
|
Waldstreicher Joanne | Director | Grant (A) | – | 39K | – | 39K | – | Jun 17, 2026 | Jun 18, 2026 | |||||||||
|
Dobmeier Eric
· Director
Grant (A)
39K
|
Dobmeier Eric | Director | Grant (A) | – | 39K | – | 39K | – | Jun 17, 2026 | Jun 18, 2026 | |||||||||
|
Tetlow Sharon
· Director
Grant (A)
39K
|
Tetlow Sharon | Director | Grant (A) | – | 39K | – | 39K | – | Jun 17, 2026 | Jun 18, 2026 | |||||||||
|
Welch Daniel G.
· Director
Grant (A)
39K
|
Welch Daniel G. | Director | Grant (A) | – | 39K | – | 39K | – | Jun 17, 2026 | Jun 18, 2026 | |||||||||
|
Lang Matthew
· Officer
2 operations
408K
|
Lang Matthew | Officer | 2 operations | – | 408K | – | 224K | – | Apr 15, 2026 | Apr 23, 2026 | |||||||||
|
FMR LLC
· 10% Owner
2 operations
-$961K
|
FMR LLC | 10% Owner | 2 operations | $55.07 | -17K | -$961K | 32K | – | Apr 14, 2026 | Apr 16, 2026 | |||||||||
|
Hall Ashley
· Officer
2 operations
107K
|
Hall Ashley | Officer | 2 operations | – | 107K | – | 59K | – | Mar 19, 2026 | Mar 23, 2026 | |||||||||
|
Coll Crespo Blas
· Officer
2 operations
170K
|
Coll Crespo Blas | Officer | 2 operations | – | 170K | – | 94K | – | Mar 19, 2026 | Mar 23, 2026 | |||||||||
|
Ma Yingli
· Officer
2 operations
73K
|
Ma Yingli | Officer | 2 operations | – | 73K | – | 40K | – | Mar 19, 2026 | Mar 23, 2026 | |||||||||
N
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205 reporting institutions disclosed GPCR 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.