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Andreas Halvorsen’s Waters Corp WAT Stock Holding History

Andreas Halvorsen’s Portfolio WAT Stock Details WAT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$623M Buy
1,662,140
+405,678
+32% +$138M 1.78% 22
2026
Q1 		$374M Buy
+1,256,462
New +$430M 1.05% 38
2013
Q4 		– Sell
-974,002
Closed -$103M – 79
2013
Q3 		$103M Buy
+974,002
New +$99.9M 0.57% 37

Other funds holding WAT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Fundsmith LLP
Fundsmith LLP London, United Kingdom $13.6B AUM 7.6% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Andreas Halvorsen's WAT Position: Q2 2026 in Review

Andreas Halvorsen increased its Waters Corp (WAT) stake by 32% in Q2 2026, buying an estimated $138M and bringing the position to 1,662,140 shares worth $623M. The position accounts for 1.78% of the portfolio, ranked #22.

Andreas Halvorsen first reported a position in WAT in Q3 2013 and has held it in 3 quarters since. 1,173 funds tracked by Wall St. Rank hold WAT as of Q2 2026.

  • Andreas Halvorsen held 1,662,140 shares of Waters Corp worth $623M as of Q2 2026.
  • Andreas Halvorsen bought 405,678 Waters Corp shares in Q2 2026, an estimated $138M.
  • Waters Corp made up 1.78% of Andreas Halvorsen's portfolio in Q2 2026, its #22 holding.
  • Andreas Halvorsen first reported a position in Waters Corp in Q3 2013 and has held it in 3 quarters since.
  • 1,173 funds tracked by Wall St. Rank held Waters Corp as of Q2 2026.

Based on Viking Global Investors's 13F filing for Q2 2026, filed 14 Aug 2026.