Mariner
STX icon

Mariner’s Seagate STX Stock Holding History

Mariner’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 		$92.6M Buy
95,939
+24,436
+34% +$18.6M 0.1% 166
2026
Q1 		$28M Buy
71,503
+2,909
+4% +$1.11M 0.03% 386
2025
Q4 		$18.9M Buy
68,594
+19,651
+40% +$5.1M 0.02% 465
2025
Q3 		$11.6M Buy
48,943
+3,708
+8% +$633K 0.01% 585
2025
Q2 		$6.53M Buy
45,235
+2,715
+6% +$281K 0.01% 761
2025
Q1 		$3.61M Buy
42,520
+294
+0.7% +$27.8K 0.01% 944
2024
Q4 		$3.64M Buy
42,226
+1,238
+3% +$125K 0.01% 920
2024
Q3 		$4.49M Buy
40,988
+355
+0.9% +$36.3K 0.01% 823
2024
Q2 		$4.2M Buy
40,633
+2,259
+6% +$211K 0.01% 793
2024
Q1 		$3.57M Buy
38,374
+3,503
+10% +$308K 0.01% 863
2023
Q4 		$2.98M Buy
34,871
+5,255
+18% +$392K 0.01% 885
2023
Q3 		$1.95M Buy
29,616
+185
+0.6% +$11.9K 0.01% 987
2023
Q2 		$1.82M Buy
29,431
+690
+2% +$42.1K ﹤0.01% 1012
2023
Q1 		$1.9M Buy
28,741
+3,463
+14% +$220K 0.01% 983
2022
Q4 		$1.33M Sell
25,278
-551
-2% -$29.3K ﹤0.01% 1115
2022
Q3 		$1.38M Buy
25,829
+13,132
+103% +$949K 0.01% 922
2022
Q2 		$907K Sell
12,697
-130
-1% -$10.6K ﹤0.01% 935
2022
Q1 		$1.15M Sell
12,827
-1,119
-8% -$115K ﹤0.01% 888
2021
Q4 		$1.58M Buy
+13,946
New +$1.36M 0.01% 709
2019
Q3 		– Sell
-6,008
Closed -$283K – 1003
2019
Q2 		$283K Sell
6,008
-682
-10% -$31.7K ﹤0.01% 907
2019
Q1 		$320K Buy
+6,690
New +$297K ﹤0.01% 789
2018
Q3 		– Sell
-4,057
Closed -$229K – 836
2018
Q2 		$229K Buy
4,057
+574
+16% +$33.2K 0.01% 715
2018
Q1 		$204K Buy
+3,483
New +$185K 0.01% 595

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 $3.37T AUM 44.26% 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

Mariner's STX Position: Q2 2026 in Review

Mariner increased its Seagate (STX) stake by 34% in Q2 2026, buying an estimated $18.6M and bringing the position to 95,939 shares worth $92.6M. The position accounts for 0.1% of the portfolio, ranked #166.

Mariner first reported a position in STX in Q1 2018 and has held it in 23 quarters since. 1,961 funds tracked by Wall St. Rank hold STX as of Q2 2026.

  • Mariner held 95,939 shares of Seagate worth $92.6M as of Q2 2026.
  • Mariner bought 24,436 Seagate shares in Q2 2026, an estimated $18.6M.
  • Seagate made up 0.1% of Mariner's portfolio in Q2 2026, its #166 holding.
  • Mariner first reported a position in Seagate in Q1 2018 and has held it in 23 quarters since.
  • 1,961 funds tracked by Wall St. Rank held Seagate as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.