Boston Partners
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Boston Partners’s Seagate STX Stock Holding History

Boston Partners’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
Q1 		$5.13M Sell
13,093
-597,718
-98% -$228M 0.01% 485
2025
Q4 		$168M Sell
610,811
-761,292
-55% -$198M 0.17% 181
2025
Q3 		$324M Buy
1,372,103
+31,602
+2% +$5.39M 0.33% 101
2025
Q2 		$193M Buy
+1,340,501
New +$139M 0.21% 156
2016
Q2 		– Sell
-1,588,590
Closed -$54.7M – 751
2016
Q1 		$54.7M Sell
1,588,590
-2,473,987
-61% -$79.7M 0.08% 216
2015
Q4 		$149M Sell
4,062,577
-299,985
-7% -$11.4M 0.21% 143
2015
Q3 		$195M Sell
4,362,562
-1,012,623
-19% -$49M 0.3% 113
2015
Q2 		$255M Buy
5,375,185
+295,891
+6% +$16.3M 0.37% 87
2015
Q1 		$264M Sell
5,079,294
-367,232
-7% -$21.8M 0.39% 76
2014
Q4 		$362M Sell
5,446,526
-111,097
-2% -$6.89M 0.54% 56
2014
Q3 		$318M Buy
5,557,623
+289,105
+5% +$17.1M 0.52% 63
2014
Q2 		$299M Sell
5,268,518
-354,679
-6% -$19.1M 0.5% 64
2014
Q1 		$316M Buy
5,623,197
+719,066
+15% +$38.5M 0.58% 51
2013
Q4 		$275M Sell
4,904,131
-522,408
-10% -$25.8M 0.56% 53
2013
Q3 		$237M Buy
5,426,539
+1,628,247
+43% +$68.4M 0.57% 48
2013
Q2 		$170M Buy
+3,798,292
New +$153M 0.47% 56

Other funds holding STX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Sanders Capital
Sanders Capital West Palm Beach, Florida $83.9B AUM 37.89% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Boston Partners's STX Position: Q1 2026 in Review

Boston Partners reduced its Seagate (STX) stake by 98% in Q1 2026, selling an estimated $228M and leaving 13,093 shares worth $5.13M. The position accounts for 0.01% of the portfolio, ranked #485.

Boston Partners first reported a position in STX in Q2 2013 and has held it in 16 quarters since. The position peaked at $362M in Q4 2014. 1,455 funds tracked by Wall St. Rank hold STX as of Q1 2026.

  • Boston Partners held 13,093 shares of Seagate worth $5.13M as of Q1 2026.
  • Boston Partners sold 597,718 Seagate shares in Q1 2026, an estimated $228M.
  • Seagate made up 0.01% of Boston Partners's portfolio in Q1 2026, its #485 holding.
  • Boston Partners first reported a position in Seagate in Q2 2013 and has held it in 16 quarters since.
  • Boston Partners's Seagate position peaked at $362M in Q4 2014.
  • 1,455 funds tracked by Wall St. Rank held Seagate as of Q1 2026.

Based on Boston Partners's 13F filing for Q1 2026, filed 11 May 2026.