Calamos Advisors
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Calamos Advisors’s Seagate STX Stock Holding History

Calamos Advisors’s Portfolio STX Stock Details STX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$26.5M Buy
27,448
+4,235
+18% +$3.23M 0.09% 223
2026
Q1 		$9.09M Buy
+23,213
New +$8.86M 0.03% 425
2018
Q4 		– Sell
-6,470
Closed -$306K – 711
2018
Q3 		$306K Buy
+6,470
New +$346K ﹤0.01% 637

Other funds holding STX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
WCM Investment Management
WCM Investment Management Laguna Beach, California $55.2B AUM 57.07% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Calamos Advisors's STX Position: Q2 2026 in Review

Calamos Advisors increased its Seagate (STX) stake by 18% in Q2 2026, buying an estimated $3.23M and bringing the position to 27,448 shares worth $26.5M. The position accounts for 0.09% of the portfolio, ranked #223.

Calamos Advisors first reported a position in STX in Q3 2018 and has held it in 3 quarters since. 1,965 funds tracked by Wall St. Rank hold STX as of Q2 2026.

  • Calamos Advisors held 27,448 shares of Seagate worth $26.5M as of Q2 2026.
  • Calamos Advisors bought 4,235 Seagate shares in Q2 2026, an estimated $3.23M.
  • Seagate made up 0.09% of Calamos Advisors's portfolio in Q2 2026, its #223 holding.
  • Calamos Advisors first reported a position in Seagate in Q3 2018 and has held it in 3 quarters since.
  • 1,965 funds tracked by Wall St. Rank held Seagate as of Q2 2026.

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