Calamos Advisors
ISRG icon

Calamos Advisors’s Intuitive Surgical ISRG Stock Holding History

Calamos Advisors’s Portfolio ISRG Stock Details ISRG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2016
Q4 		– Sell
-954
Closed -$578K – 654
2016
Q3 		$578K Sell
954
-36
-4% -$2.76K ﹤0.01% 550
2016
Q2 		$702K Buy
+990
New +$69.7K ﹤0.01% 536

Other funds holding ISRG

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Calamos Advisors's ISRG Position: Q1 2026 in Review

Calamos Advisors increased its Intuitive Surgical (ISRG) stake by 22% in Q1 2026, buying an estimated $15.2M and bringing the position to 165,835 shares worth $76.4M. The position accounts for 0.27% of the portfolio, ranked #76.

Calamos Advisors first reported a position in ISRG in Q2 2013 and has held it in 34 quarters since. The position peaked at $76.9M in Q4 2025. 2,303 funds tracked by Wall St. Rank hold ISRG as of Q1 2026.

  • Calamos Advisors held 165,835 shares of Intuitive Surgical worth $76.4M as of Q1 2026.
  • Calamos Advisors bought 30,098 Intuitive Surgical shares in Q1 2026, an estimated $15.2M.
  • Intuitive Surgical made up 0.27% of Calamos Advisors's portfolio in Q1 2026, its #76 holding.
  • Calamos Advisors first reported a position in Intuitive Surgical in Q2 2013 and has held it in 34 quarters since.
  • Calamos Advisors's Intuitive Surgical position peaked at $76.9M in Q4 2025.
  • 2,303 funds tracked by Wall St. Rank held Intuitive Surgical as of Q1 2026.

Based on Calamos Advisors's 13F filing for Q1 2026, filed 4 May 2026.