UBS Group AG
· Added
Change
+2.4M
Date
Q1 2026
PT
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
UBS Group AG
· Added
Change
+2.4M
Date
Q1 2026
|
UBS Group AG | Added· Q1 2026 | – | +2.4M | – | Q1 2026 | |||||
|
Vanguard
· Added
Change
+1.4M
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | – | +1.4M | – | Q1 2026 | |||||
|
Hood River Capital Management LLC
· New
Change
+829K
Date
Q1 2026
|
Hood River Capital Management LLC | New· Q1 2026 | – | +829K | – | Q1 2026 | |||||
|
Jennison Associates LLC
· Added
Change
+741K
Date
Q1 2026
|
Jennison Associates LLC | Added· Q1 2026 | – | +741K | – | Q1 2026 | |||||
|
Invesco Ltd.
· Added
Change
+597K
Δ Own
+38.1%
Date
Q1 2026
|
Invesco Ltd. | Added· Q1 2026 | – | +597K | +38.1% | Q1 2026 | |||||
|
Commodore Capital LP
· Exited
Change
−450K
Δ Own
−100.0%
Date
Q1 2026
|
Commodore Capital LP | Exited· Q1 2026 | – | −450K | −100.0% | Q1 2026 | |||||
|
Wellington Management Group LLP
· Added
Change
+428K
Δ Own
+13.5%
Date
Q1 2026
|
Wellington Management Group LLP | Added· Q1 2026 | – | +428K | +13.5% | Q1 2026 | |||||
|
Rubric Capital Management LP
· New
Change
+428K
Date
Q1 2026
|
Rubric Capital Management LP | New· Q1 2026 | – | +428K | – | Q1 2026 | |||||
|
Bank of America Corp
· Added
Change
+428K
Date
Q1 2026
|
Bank of America Corp | Added· Q1 2026 | – | +428K | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Added
Change
+425K
Δ Own
+37.7%
Date
Q1 2026
|
Citadel Advisors LLC | Added· Q1 2026 | – | +425K | +37.7% | Q1 2026 | |||||
|
Marshall Wace, LLP
· Reduced
Change
−397K
Date
Q1 2026
|
Marshall Wace, LLP | Reduced· Q1 2026 | – | −397K | – | Q1 2026 | |||||
|
Alyeska Investment Group, L.P.
· Added
Change
+394K
Date
Q1 2026
|
Alyeska Investment Group, L.P. | Added· Q1 2026 | – | +394K | – | Q1 2026 | |||||
|
Driehaus Capital Management LLC
· Reduced
Change
−378K
Date
Q1 2026
|
Driehaus Capital Management LLC | Reduced· Q1 2026 | – | −378K | – | Q1 2026 | |||||
|
Vestal Point Capital, LP
· New
Change
+326K
Date
Q1 2026
|
Vestal Point Capital, LP | New· Q1 2026 | – | +326K | – | Q1 2026 | |||||
|
T. Rowe Price Associates
· Added
Change
+265K
Date
Q1 2026
|
T. Rowe Price Associates | Added· Q1 2026 | – | +265K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Waddill William D.
· Director
Sell
−$1.1M
|
Waddill William D. | Director | Sell | $117.94 | −9K | −$1.1M | 8K | −53.5% | Jun 23, 2026 | Jun 25, 2026 | |||||||||
|
Waddill William D.
· Director
2 operations
0
|
Waddill William D. | Director | 2 operations | $16.54 | 0 | – | 0 | – | Jun 23, 2026 | Jun 25, 2026 | |||||||||
|
Waddill William D.
· Director
Sell
−$969K
|
Waddill William D. | Director | Sell | $107.68 | −9K | −$969K | 8K | – | Jun 10, 2026 | Jun 11, 2026 | |||||||||
|
Waddill William D.
· Director
4 operations
0
|
Waddill William D. | Director | 4 operations | $11.80–$16.54 | 0 | – | 9K | – | Jun 10, 2026 | Jun 11, 2026 | |||||||||
|
Waddill William D.
· Director
Sell
−$897K
|
Waddill William D. | Director | Sell | $99.64 | −9K | −$897K | 8K | – | May 29, 2026 | Jun 1, 2026 | |||||||||
|
Waddill William D.
· Director
2 operations
0
|
Waddill William D. | Director | 2 operations | $11.80 | 0 | – | 3K | – | May 29, 2026 | Jun 1, 2026 | |||||||||
|
Patel Dinesh V Ph D
· Director
Sell
−$7.5M
|
Patel Dinesh V Ph D | Director | Sell | $100.12 | −75K | −$7.5M | 523K | – | May 12, 2026 | May 12, 2026 | |||||||||
|
Patel Dinesh V Ph D
· Director
2 operations
0
|
Patel Dinesh V Ph D | Director | 2 operations | $21.58 | 0 | – | 225K | – | May 12, 2026 | May 12, 2026 | |||||||||
|
Giraudo Bryan
· Director
2 operations
−$1.1M
|
Giraudo Bryan | Director | 2 operations | $100.00 | −11K | −$1.1M | 13K | – | May 8, 2026 | May 11, 2026 | |||||||||
|
Giraudo Bryan
· Director
2 operations
−$4.8M
|
Giraudo Bryan | Director | 2 operations | $100.07–$100.14 | −48K | −$4.8M | 6K | – | May 7, 2026 | May 11, 2026 | |||||||||
|
Giraudo Bryan
· Director
4 operations
0
|
Giraudo Bryan | Director | 4 operations | $6.45–$6.98 | 0 | – | 0 | – | May 7, 2026 | May 11, 2026 | |||||||||
|
Patel Dinesh V Ph D
· Director
Gift (G)
-1K
|
Patel Dinesh V Ph D | Director | Gift (G) | – | -1K | – | 523K | – | Apr 23, 2026 | Apr 24, 2026 | |||||||||
|
Ali Asif
· CFO
Sell
−$185K
|
Ali Asif | CFO | Sell | $105.47 | −2K | −$185K | 59K | – | Apr 20, 2026 | Apr 21, 2026 | |||||||||
|
Molina Arturo Md
· Officer
Sell
−$1.6M
|
Molina Arturo Md | Officer | Sell | $104.79 | −15K | −$1.6M | 84K | – | Mar 26, 2026 | Mar 27, 2026 | |||||||||
|
Molina Arturo Md
· Officer
2 operations
0
|
Molina Arturo Md | Officer | 2 operations | $8.04 | 0 | – | 51K | – | Mar 26, 2026 | Mar 27, 2026 | |||||||||
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307 reporting institutions disclosed PTGX 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.