Vanguard
· Added
+$1.6B
Change
+4.7M
Date
Q1 2026
WA
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Vanguard
· Added
+$1.6B
Change
+4.7M
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | +$1.6B | +4.7M | – | Q1 2026 | |||||
|
T. Rowe Price Investment Management, Inc.
· Added
+$1.6B
Change
+4.5M
Date
Q1 2026
|
T. Rowe Price Investment Management, Inc. | Added· Q1 2026 | +$1.6B | +4.5M | – | Q1 2026 | |||||
|
BlackRock
· Added
+$1.1B
Change
+3.1M
Date
Q1 2026
|
BlackRock | Added· Q1 2026 | +$1.1B | +3.1M | – | Q1 2026 | |||||
|
Massachusetts Financial Services Co
· Added
+$687M
Change
+2.0M
Date
Q1 2026
|
Massachusetts Financial Services Co | Added· Q1 2026 | +$687M | +2.0M | – | Q1 2026 | |||||
|
State Street
· Added
+$575M
Change
+1.7M
Date
Q1 2026
|
State Street | Added· Q1 2026 | +$575M | +1.7M | – | Q1 2026 | |||||
|
First Eagle Investment Management, LLC
· New
+$539M
Change
+1.6M
Date
Q1 2026
|
First Eagle Investment Management, LLC | New· Q1 2026 | +$539M | +1.6M | – | Q1 2026 | |||||
|
JPMorgan Chase & Co
· Added
+$527M
Change
+1.5M
Date
Q1 2026
|
JPMorgan Chase & Co | Added· Q1 2026 | +$527M | +1.5M | – | Q1 2026 | |||||
|
Viking Global Investors LP
· New
+$430M
Change
+1.3M
Date
Q1 2026
|
Viking Global Investors LP | New· Q1 2026 | +$430M | +1.3M | – | Q1 2026 | |||||
|
Geode
· Added
+$361M
Change
+1.1M
Date
Q1 2026
|
Geode | Added· Q1 2026 | +$361M | +1.1M | – | Q1 2026 | |||||
|
Invesco Ltd.
· Added
+$343M
Change
+1.0M
Δ Own
+85.8%
Date
Q1 2026
|
Invesco Ltd. | Added· Q1 2026 | +$343M | +1.0M | +85.8% | Q1 2026 | |||||
|
Norges
· Exited
−$240M
Change
−700K
Δ Own
−100.0%
Date
Q1 2026
|
Norges | Exited· Q1 2026 | −$240M | −700K | −100.0% | Q1 2026 | |||||
|
D. E. Shaw & Co., Inc.
· Added
+$230M
Change
+673K
Δ Own
+191.3%
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | Added· Q1 2026 | +$230M | +673K | +191.3% | Q1 2026 | |||||
|
Ameriprise Financial Inc
· Added
+$207M
Change
+605K
Date
Q1 2026
|
Ameriprise Financial Inc | Added· Q1 2026 | +$207M | +605K | – | Q1 2026 | |||||
|
Wellington Management Group LLP
· Added
+$184M
Change
+539K
Δ Own
+197.5%
Date
Q1 2026
|
Wellington Management Group LLP | Added· Q1 2026 | +$184M | +539K | +197.5% | Q1 2026 | |||||
|
Guardcap Asset Management Ltd
· Reduced
−$178M
Change
−520K
Date
Q1 2026
|
Guardcap Asset Management Ltd | Reduced· Q1 2026 | −$178M | −520K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Knight Heather
· Director
Grant (A)
63
|
Knight Heather | Director | Grant (A) | – | 63 | – | 1K | +5.2% | Jun 30, 2026 | Jul 2, 2026 | |||||||||
|
Jiang Wei
· Director
Grant (A)
67
|
Jiang Wei | Director | Grant (A) | – | 67 | – | 4K | +1.9% | Jun 30, 2026 | Jul 2, 2026 | |||||||||
|
Carpio Robert L. III
· Officer
Tax withholding or exercise payment (F)
-$70K
|
Carpio Robert L. III | Officer | Tax withholding or exercise payment (F) | $369.18 | -189 | -$70K | 3K | −5.2% | Jun 24, 2026 | Jun 25, 2026 | |||||||||
|
Chaubal Amol
· CFO
Tax withholding or exercise payment (F)
-$84K
|
Chaubal Amol | CFO | Tax withholding or exercise payment (F) | $352.21 | -239 | -$84K | 8K | – | May 12, 2026 | May 14, 2026 | |||||||||
|
Bennett Jianqing
· Officer
Tax withholding or exercise payment (F)
-$92K
|
Bennett Jianqing | Officer | Tax withholding or exercise payment (F) | $304.09 | -302 | -$92K | 7K | – | Apr 6, 2026 | Apr 7, 2026 | |||||||||
|
Jiang Wei
· Director
Grant (A)
64
|
Jiang Wei | Director | Grant (A) | – | 64 | – | 4K | – | Mar 31, 2026 | Apr 2, 2026 | |||||||||
|
Knight Heather
· Director
Grant (A)
68
|
Knight Heather | Director | Grant (A) | – | 68 | – | 1K | – | Mar 31, 2026 | Apr 2, 2026 | |||||||||
|
Jiang Wei
· Director
Buy
+$145K
|
Jiang Wei | Director | Buy | $289.46 | +500 | +$145K | 3K | – | Mar 16, 2026 | Mar 18, 2026 | |||||||||
|
Fearon Richard H.
· Director
Buy
+$306K
|
Fearon Richard H. | Director | Buy | $306.34 | +1K | +$306K | 3K | – | Mar 6, 2026 | Mar 10, 2026 | |||||||||
|
Batra Udit
· Director, Officer
Tax withholding or exercise payment (F)
-$1.0M
|
Batra Udit | Director, Officer | Tax withholding or exercise payment (F) | $307.23 | -3K | -$1.0M | 33K | – | Mar 2, 2026 | Mar 3, 2026 | |||||||||
|
Chaubal Amol
· Officer
Tax withholding or exercise payment (F)
-$218K
|
Chaubal Amol | Officer | Tax withholding or exercise payment (F) | $307.23 | -709 | -$218K | 8K | – | Mar 2, 2026 | Mar 3, 2026 | |||||||||
|
Bennett Jianqing
· Officer
Tax withholding or exercise payment (F)
-$126K
|
Bennett Jianqing | Officer | Tax withholding or exercise payment (F) | $307.23 | -410 | -$126K | 7K | – | Mar 2, 2026 | Mar 3, 2026 | |||||||||
|
Carpio Robert L. III
· Officer
2 operations
6K
|
Carpio Robert L. III | Officer | 2 operations | – | 6K | – | 5K | – | Feb 25, 2026 | Feb 27, 2026 | |||||||||
|
Bennett Jianqing
· Officer
2 operations
6K
|
Bennett Jianqing | Officer | 2 operations | – | 6K | – | 5K | – | Feb 25, 2026 | Feb 27, 2026 | |||||||||
|
Chaubal Amol
· Officer
2 operations
9K
|
Chaubal Amol | Officer | 2 operations | – | 9K | – | 7K | – | Feb 25, 2026 | Feb 27, 2026 | |||||||||
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Institutions hold 47.1% of WAT shares in the Q1 2026 snapshot. The largest disclosed owners include T. Rowe Price Investment Management, Inc., Massachusetts Financial Services Co, Fundsmith LLP. The ownership chart shows each group's share of total shares outstanding from the latest disclosed filings. Retail and other includes everyone who does not file, not a tracked group.
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.