Sarissa Capital Management LP
· Reduced
Change
−685K
Date
Q1 2026
IN
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sarissa Capital Management LP
· Reduced
Change
−685K
Date
Q1 2026
|
Sarissa Capital Management LP | Reduced· Q1 2026 | – | −685K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+669K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +669K | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
Change
+644K
Δ Own
+76.7%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | – | +644K | +76.7% | Q1 2026 | |||||
|
BlackRock
· Added
Change
+631K
Date
Q1 2026
|
BlackRock | Added· Q1 2026 | – | +631K | – | Q1 2026 | |||||
|
William Blair Investment Management, LLC
· New
Change
+575K
Date
Q1 2026
|
William Blair Investment Management, LLC | New· Q1 2026 | – | +575K | – | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Added
Change
+471K
Date
Q1 2026
|
Goldman Sachs Group Inc | Added· Q1 2026 | – | +471K | – | Q1 2026 | |||||
|
Arrowstreet Capital, Limited Partnership
· Reduced
Change
−470K
Date
Q1 2026
|
Arrowstreet Capital, Limited Partnership | Reduced· Q1 2026 | – | −470K | – | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· Reduced
Change
−429K
Date
Q1 2026
|
Qube Research & Technologies Ltd | Reduced· Q1 2026 | – | −429K | – | Q1 2026 | |||||
|
Pacer Advisors, Inc.
· Exited
Change
−381K
Δ Own
−100.0%
Date
Q1 2026
|
Pacer Advisors, Inc. | Exited· Q1 2026 | – | −381K | −100.0% | Q1 2026 | |||||
|
American Century Companies Inc
· Reduced
Change
−330K
Date
Q1 2026
|
American Century Companies Inc | Reduced· Q1 2026 | – | −330K | – | Q1 2026 | |||||
|
Cx Institutional
· New
Change
+278K
Date
Q1 2026
|
Cx Institutional | New· Q1 2026 | – | +278K | – | Q1 2026 | |||||
|
State Street
· Added
Change
+264K
Date
Q1 2026
|
State Street | Added· Q1 2026 | – | +264K | – | Q1 2026 | |||||
|
Healthcare of Ontario Pension Plan Trust Fund
· Reduced
Change
−263K
Date
Q1 2026
|
Healthcare of Ontario Pension Plan Trust Fund | Reduced· Q1 2026 | – | −263K | – | Q1 2026 | |||||
|
Voloridge Investment Management, LLC
· Reduced
Change
−247K
Date
Q1 2026
|
Voloridge Investment Management, LLC | Reduced· Q1 2026 | – | −247K | – | Q1 2026 | |||||
|
HSBC Holdings PLC
· Reduced
Change
−222K
Date
Q1 2026
|
HSBC Holdings PLC | Reduced· Q1 2026 | – | −222K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Basso Stephen
· CFO
Tax withholding or exercise payment (F)
-$12K
|
Basso Stephen | CFO | Tax withholding or exercise payment (F) | $22.24 | -559 | -$12K | 89K | – | May 20, 2026 | May 22, 2026 | |||||||||
|
Raifeld Pavel
· Director
Tax withholding or exercise payment (F)
-$25K
|
Raifeld Pavel | Director | Tax withholding or exercise payment (F) | $22.24 | -1K | -$25K | 286K | – | May 20, 2026 | May 22, 2026 | |||||||||
|
Zhen Marianne
· Officer
Tax withholding or exercise payment (F)
-$25K
|
Zhen Marianne | Officer | Tax withholding or exercise payment (F) | $22.24 | -1K | -$25K | 58K | – | May 20, 2026 | May 22, 2026 | |||||||||
|
Linden Josephine
· Director
3 operations
24K
|
Linden Josephine | Director | 3 operations | – | 24K | – | 9K | – | May 18, 2026 | May 20, 2026 | |||||||||
|
Basso Stephen
· CFO
Grant (A)
1K
|
Basso Stephen | CFO | Grant (A) | – | 1K | – | 89K | – | May 15, 2026 | May 22, 2026 | |||||||||
|
Raifeld Pavel
· Director
Grant (A)
1K
|
Raifeld Pavel | Director | Grant (A) | – | 1K | – | 287K | – | May 15, 2026 | May 22, 2026 | |||||||||
|
Raifeld Pavel
· Director
2 operations
439K
|
Raifeld Pavel | Director | 2 operations | – | 439K | – | 312K | – | May 4, 2026 | May 6, 2026 | |||||||||
|
Dipaolo Mark
· Director
2 operations
20K
|
Dipaolo Mark | Director | 2 operations | – | 20K | – | 10K | – | May 4, 2026 | May 6, 2026 | |||||||||
|
Zhen Marianne
· Officer
2 operations
44K
|
Zhen Marianne | Officer | 2 operations | – | 44K | – | 32K | – | May 4, 2026 | May 6, 2026 | |||||||||
|
Schlesinger Sarah J.
· Director
2 operations
20K
|
Schlesinger Sarah J. | Director | 2 operations | – | 20K | – | 10K | – | May 4, 2026 | May 6, 2026 | |||||||||
|
Basso Stephen
· CFO
2 operations
132K
|
Basso Stephen | CFO | 2 operations | – | 132K | – | 94K | – | May 4, 2026 | May 6, 2026 | |||||||||
|
Small Derek A.
· Director
2 operations
20K
|
Small Derek A. | Director | 2 operations | – | 20K | – | 10K | – | May 4, 2026 | May 6, 2026 | |||||||||
|
Haimovitz Jules
· Director
2 operations
20K
|
Haimovitz Jules | Director | 2 operations | – | 20K | – | 10K | – | May 4, 2026 | May 6, 2026 | |||||||||
|
Basso Stephen
· Officer
Tax withholding or exercise payment (F)
-$29K
|
Basso Stephen | Officer | Tax withholding or exercise payment (F) | $23.39 | -1K | -$29K | 50K | – | Feb 20, 2026 | Feb 24, 2026 | |||||||||
|
Raifeld Pavel
· Director, Officer
Tax withholding or exercise payment (F)
-$70K
|
Raifeld Pavel | Director, Officer | Tax withholding or exercise payment (F) | $23.39 | -3K | -$70K | 159K | – | Feb 20, 2026 | Feb 24, 2026 | |||||||||
N
A
M
M
G
A
280 reporting institutions disclosed INVA 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.