Ra Capital Management, L.P.
· New
Change
+4.9M
Date
Q1 2026
XN
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Ra Capital Management, L.P.
· New
Change
+4.9M
Date
Q1 2026
|
Ra Capital Management, L.P. | New· Q1 2026 | – | +4.9M | – | Q1 2026 | |||||
|
Defilade Capital Management, L.P.
· Exited
Change
−1.4M
Δ Own
−100.0%
Date
Q1 2026
|
Defilade Capital Management, L.P. | Exited· Q1 2026 | – | −1.4M | −100.0% | Q1 2026 | |||||
|
BlackRock
· Added
Change
+1.1M
Date
Q1 2026
|
BlackRock | Added· Q1 2026 | – | +1.1M | – | Q1 2026 | |||||
|
Ecor1 Capital, LLC
· Reduced
Change
−1.1M
Date
Q1 2026
|
Ecor1 Capital, LLC | Reduced· Q1 2026 | – | −1.1M | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
Change
+537K
Δ Own
+199.7%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | – | +537K | +199.7% | Q1 2026 | |||||
|
Two Sigma Advisers, LP
· Exited
Change
−507K
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Advisers, LP | Exited· Q1 2026 | – | −507K | −100.0% | Q1 2026 | |||||
|
Braidwell LP
· Exited
Change
−459K
Δ Own
−100.0%
Date
Q1 2026
|
Braidwell LP | Exited· Q1 2026 | – | −459K | −100.0% | Q1 2026 | |||||
|
UBS Group AG
· Added
Change
+444K
Date
Q1 2026
|
UBS Group AG | Added· Q1 2026 | – | +444K | – | Q1 2026 | |||||
|
Bank of America Corp
· Reduced
Change
−263K
Date
Q1 2026
|
Bank of America Corp | Reduced· Q1 2026 | – | −263K | – | Q1 2026 | |||||
|
Velan Capital Investment Management LP
· New
Change
+250K
Date
Q1 2026
|
Velan Capital Investment Management LP | New· Q1 2026 | – | +250K | – | Q1 2026 | |||||
|
Legal & General
· Reduced
Change
−241K
Date
Q1 2026
|
Legal & General | Reduced· Q1 2026 | – | −241K | – | Q1 2026 | |||||
|
Woodline Partners LP
· Exited
Change
−193K
Δ Own
−100.0%
Date
Q1 2026
|
Woodline Partners LP | Exited· Q1 2026 | – | −193K | −100.0% | Q1 2026 | |||||
|
Lynx1 Capital Management LP
· Reduced
Change
−169K
Date
Q1 2026
|
Lynx1 Capital Management LP | Reduced· Q1 2026 | – | −169K | – | Q1 2026 | |||||
|
Rhenman & Partners Asset Management AB
· Exited
Change
−166K
Δ Own
−100.0%
Date
Q1 2026
|
Rhenman & Partners Asset Management AB | Exited· Q1 2026 | – | −166K | −100.0% | Q1 2026 | |||||
|
State Street
· Reduced
Change
−155K
Date
Q1 2026
|
State Street | Reduced· Q1 2026 | – | −155K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Feigal Ellen
· Director
Sell
−$89K
|
Feigal Ellen | Director | Sell | $13.06 | −7K | −$89K | 12K | −35.7% | Jun 18, 2026 | Jun 22, 2026 | |||||||||
|
Feigal Ellen
· Director
2 operations
31K
|
Feigal Ellen | Director | 2 operations | – | 31K | – | 21K | – | Jun 16, 2026 | Jul 8, 2026 | |||||||||
|
Gorman Kevin Charles
· Director
2 operations
31K
|
Gorman Kevin Charles | Director | 2 operations | – | 31K | – | 21K | – | Jun 16, 2026 | Jul 8, 2026 | |||||||||
|
Gustafson Kurt A.
· Director
2 operations
31K
|
Gustafson Kurt A. | Director | 2 operations | – | 31K | – | 21K | – | Jun 16, 2026 | Jul 8, 2026 | |||||||||
|
Klencke Barbara
· Director
2 operations
31K
|
Klencke Barbara | Director | 2 operations | – | 31K | – | 21K | – | Jun 16, 2026 | Jul 8, 2026 | |||||||||
|
Montgomery Alan Bruce
· Director
2 operations
31K
|
Montgomery Alan Bruce | Director | 2 operations | – | 31K | – | 21K | – | Jun 16, 2026 | Jul 8, 2026 | |||||||||
|
Ranieri Richard J.
· Director
2 operations
31K
|
Ranieri Richard J. | Director | 2 operations | – | 31K | – | 21K | – | Jun 16, 2026 | Jul 8, 2026 | |||||||||
|
Simpson Todd E.
· Director
2 operations
31K
|
Simpson Todd E. | Director | 2 operations | – | 31K | – | 21K | – | Jun 16, 2026 | Jul 8, 2026 | |||||||||
|
Deshaies Raymond Joseph
· Director
2 operations
31K
|
Deshaies Raymond Joseph | Director | 2 operations | – | 31K | – | 21K | – | Jun 16, 2026 | Jul 8, 2026 | |||||||||
|
Gorman Kevin Charles
· Director
Sell
−$93K
|
Gorman Kevin Charles | Director | Sell | $12.31 | −8K | −$93K | 11K | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Gustafson Kurt A.
· Director
Sell
−$67K
|
Gustafson Kurt A. | Director | Sell | $12.31 | −5K | −$67K | 15K | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Ranieri Richard J.
· Director
Sell
−$67K
|
Ranieri Richard J. | Director | Sell | $12.31 | −5K | −$67K | 14K | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Montgomery Alan Bruce
· Director
Sell
−$62K
|
Montgomery Alan Bruce | Director | Sell | $12.31 | −5K | −$62K | 16K | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Cornelissen Bart Jan
· Officer
Sell
−$43K
|
Cornelissen Bart Jan | Officer | Sell | $12.29 | −3K | −$43K | 76K | – | Apr 10, 2026 | Apr 13, 2026 | |||||||||
|
Desjarlais John R.
· Officer
Sell
−$28K
|
Desjarlais John R. | Officer | Sell | $11.02 | −3K | −$28K | 264K | – | Mar 6, 2026 | Mar 9, 2026 | |||||||||
N
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181 reporting institutions disclosed XNCR 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.