PT
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Janus Henderson Group PLC
· Added
Change
+2.3M
Date
Q1 2026
|
Janus Henderson Group PLC | Added· Q1 2026 | – | +2.3M | – | Q1 2026 | |||||
|
Point72 Asset Management, L.P.
· Exited
Change
−1.1M
Δ Own
−100.0%
Date
Q1 2026
|
Point72 Asset Management, L.P. | Exited· Q1 2026 | – | −1.1M | −100.0% | Q1 2026 | |||||
|
Toronto Dominion Bank
· Reduced
Change
−1.1M
Date
Q1 2026
|
Toronto Dominion Bank | Reduced· Q1 2026 | – | −1.1M | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Reduced
Change
−769K
Δ Own
−66.6%
Date
Q1 2026
|
Citadel Advisors LLC | Reduced· Q1 2026 | – | −769K | −66.6% | Q1 2026 | |||||
|
Armistice Capital, LLC
· Reduced
Change
−727K
Date
Q1 2026
|
Armistice Capital, LLC | Reduced· Q1 2026 | – | −727K | – | Q1 2026 | |||||
|
Avoro Capital Advisors LLC
· Exited
Change
−685K
Δ Own
−100.0%
Date
Q1 2026
|
Avoro Capital Advisors LLC | Exited· Q1 2026 | – | −685K | −100.0% | Q1 2026 | |||||
|
Hood River Capital Management LLC
· Added
Change
+661K
Date
Q1 2026
|
Hood River Capital Management LLC | Added· Q1 2026 | – | +661K | – | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· New
Change
+514K
Date
Q1 2026
|
Qube Research & Technologies Ltd | New· Q1 2026 | – | +514K | – | Q1 2026 | |||||
|
Loomis Sayles & Co L P
· New
Change
+494K
Date
Q1 2026
|
Loomis Sayles & Co L P | New· Q1 2026 | – | +494K | – | Q1 2026 | |||||
|
Balyasny Asset Management L.P.
· New
Change
+461K
Date
Q1 2026
|
Balyasny Asset Management L.P. | New· Q1 2026 | – | +461K | – | Q1 2026 | |||||
|
Bank of America Corp
· Added
Change
+455K
Date
Q1 2026
|
Bank of America Corp | Added· Q1 2026 | – | +455K | – | Q1 2026 | |||||
|
Invesco Ltd.
· Added
Change
+431K
Δ Own
+99.3%
Date
Q1 2026
|
Invesco Ltd. | Added· Q1 2026 | – | +431K | +99.3% | Q1 2026 | |||||
|
Mpm Bioimpact LLC
· Exited
Change
−430K
Δ Own
−100.0%
Date
Q1 2026
|
Mpm Bioimpact LLC | Exited· Q1 2026 | – | −430K | −100.0% | Q1 2026 | |||||
|
UBS Group AG
· Added
Change
+400K
Date
Q1 2026
|
UBS Group AG | Added· Q1 2026 | – | +400K | – | Q1 2026 | |||||
|
Defilade Capital Management, L.P.
· New
Change
+376K
Date
Q1 2026
|
Defilade Capital Management, L.P. | New· Q1 2026 | – | +376K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Gravier Pierre
· Officer
Sell
−$281K
|
Gravier Pierre | Officer | Sell | $80.35 | −3K | −$281K | 84K | −4.0% | Jul 14, 2026 | Jul 16, 2026 | |||||||||
|
Smith Mary L.
· Director
2 operations
−$1.4M
|
Smith Mary L. | Director | 2 operations | $90.00 | −16K | −$1.4M | 22K | – | Jul 9, 2026 | Jul 13, 2026 | |||||||||
|
Smith Mary L.
· Director
4 operations
0
|
Smith Mary L. | Director | 4 operations | $42.95 | 0 | – | 0 | – | Jul 9, 2026 | Jul 13, 2026 | |||||||||
|
Almstead Neil Gregory
· Officer
Sell
−$222K
|
Almstead Neil Gregory | Officer | Sell | $90.25 | −2K | −$222K | 60K | −3.9% | Jul 9, 2026 | Jul 13, 2026 | |||||||||
|
Almstead Neil Gregory
· Officer
2 operations
0
|
Almstead Neil Gregory | Officer | 2 operations | $46.54 | 0 | – | 45K | – | Jul 9, 2026 | Jul 13, 2026 | |||||||||
|
Almstead Neil Gregory
· Officer
3 operations
−$2.2M
|
Almstead Neil Gregory | Officer | 3 operations | $87.17–$89.44 | −25K | −$2.2M | 60K | −29.0% | Jul 7, 2026 | Jul 8, 2026 | |||||||||
|
Almstead Neil Gregory
· Officer
2 operations
0
|
Almstead Neil Gregory | Officer | 2 operations | $39.42 | 0 | – | 9K | – | Jul 7, 2026 | Jul 8, 2026 | |||||||||
|
Boulding Mark Elliott
· Officer
8 operations
−$432K
|
Boulding Mark Elliott | Officer | 8 operations | $83.10–$86.38 | −5K | −$432K | 105K | – | Jul 6, 2026 | Jul 8, 2026 | |||||||||
|
Boulding Mark Elliott
· Officer
4 operations
40
|
Boulding Mark Elliott | Officer | 4 operations | $39.42–$46.54 | 40 | – | 28K | – | Jul 6, 2026 | Jul 8, 2026 | |||||||||
|
Almstead Neil Gregory
· Officer
5 operations
−$1.9M
|
Almstead Neil Gregory | Officer | 5 operations | $85.28–$87.03 | −22K | −$1.9M | 60K | – | Jul 6, 2026 | Jul 8, 2026 | |||||||||
|
Almstead Neil Gregory
· Officer
6 operations
0
|
Almstead Neil Gregory | Officer | 6 operations | $38.10–$39.42 | 0 | – | 34K | – | Jul 6, 2026 | Jul 8, 2026 | |||||||||
|
Almstead Neil Gregory
· Officer
2 operations
−$693K
|
Almstead Neil Gregory | Officer | 2 operations | $85.23–$85.26 | −8K | −$693K | 60K | – | Jun 26, 2026 | Jun 30, 2026 | |||||||||
|
Almstead Neil Gregory
· Officer
4 operations
0
|
Almstead Neil Gregory | Officer | 4 operations | $38.10 | 0 | – | 20K | – | Jun 26, 2026 | Jun 30, 2026 | |||||||||
|
Almstead Neil Gregory
· Officer
5 operations
−$1.8M
|
Almstead Neil Gregory | Officer | 5 operations | $85.24–$87.00 | −21K | −$1.8M | 60K | – | Jun 25, 2026 | Jun 26, 2026 | |||||||||
|
Almstead Neil Gregory
· Officer
6 operations
0
|
Almstead Neil Gregory | Officer | 6 operations | $38.10–$39.42 | 0 | – | 36K | – | Jun 25, 2026 | Jun 26, 2026 | |||||||||
350 reporting institutions disclosed PTCT 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.