Calamos Advisors
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Calamos Advisors’s Waters Corp WAT Stock Holding History

Calamos Advisors’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 		$2.97M Sell
7,914
-147
-2% -$50.1K 0.01% 619
2026
Q1 		$2.4M Buy
+8,061
New +$2.76M 0.01% 646
2017
Q3 		– Sell
-65,559
Closed -$12.1M – 654
2017
Q2 		$12.1M Buy
+65,559
New +$11.4M 0.09% 263

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

Calamos Advisors's WAT Position: Q2 2026 in Review

Calamos Advisors reduced its Waters Corp (WAT) stake by 1.8% in Q2 2026, selling an estimated $50.1K and leaving 7,914 shares worth $2.97M. The position accounts for 0.01% of the portfolio, ranked #619.

Calamos Advisors first reported a position in WAT in Q2 2017 and has held it in 3 quarters since. The position peaked at $12.1M in Q2 2017. 1,177 funds tracked by Wall St. Rank hold WAT as of Q2 2026.

  • Calamos Advisors held 7,914 shares of Waters Corp worth $2.97M as of Q2 2026.
  • Calamos Advisors sold 147 Waters Corp shares in Q2 2026, an estimated $50.1K.
  • Waters Corp made up 0.01% of Calamos Advisors's portfolio in Q2 2026, its #619 holding.
  • Calamos Advisors first reported a position in Waters Corp in Q2 2017 and has held it in 3 quarters since.
  • Calamos Advisors's Waters Corp position peaked at $12.1M in Q2 2017.
  • 1,177 funds tracked by Wall St. Rank held Waters Corp as of Q2 2026.

Based on Calamos Advisors's 13F filing for Q2 2026, filed 31 Jul 2026.