William Blair & Company
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William Blair & Company’s State Street STT Stock Holding History

William Blair & Company’s Portfolio STT Stock Details STT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.29M Buy
10,217
+199
+2% +$25.5K ﹤0.01% 859
2025
Q4 		$1.29M Sell
10,018
-825
-8% -$98.8K ﹤0.01% 869
2025
Q3 		$1.26M Sell
10,843
-697
-6% -$77.8K ﹤0.01% 857
2025
Q2 		$1.23M Sell
11,540
-425
-4% -$39.3K ﹤0.01% 835
2025
Q1 		$1.07M Sell
11,965
-164
-1% -$15.7K ﹤0.01% 861
2024
Q4 		$1.19M Buy
12,129
+99
+0.8% +$9.38K ﹤0.01% 841
2024
Q3 		$1.06M Sell
12,030
-135
-1% -$11.1K ﹤0.01% 887
2024
Q2 		$900K Sell
12,165
-1,516
-11% -$113K ﹤0.01% 916
2024
Q1 		$1.06M Sell
13,681
-1,471
-10% -$109K ﹤0.01% 847
2023
Q4 		$1.17M Sell
15,152
-9,555
-39% -$666K ﹤0.01% 808
2023
Q3 		$1.65M Buy
24,707
+5,594
+29% +$395K 0.01% 708
2023
Q2 		$1.4M Sell
19,113
-89
-0.5% -$6.4K 0.01% 745
2023
Q1 		$1.45M Buy
19,202
+4,232
+28% +$356K 0.01% 733
2022
Q4 		$1.16M Sell
14,970
-368
-2% -$27.1K 0.01% 780
2022
Q3 		$933K Buy
15,338
+833
+6% +$56.9K ﹤0.01% 836
2022
Q2 		$894K Sell
14,505
-3,251
-18% -$230K ﹤0.01% 886
2022
Q1 		$1.55M Buy
17,756
+2,216
+14% +$205K 0.01% 767
2021
Q4 		$1.45M Buy
15,540
+2,820
+22% +$266K ﹤0.01% 820
2021
Q3 		$1.08M Buy
12,720
+3,691
+41% +$321K ﹤0.01% 899
2021
Q2 		$743K Sell
9,029
-425
-4% -$35.9K ﹤0.01% 1014
2021
Q1 		$794K Sell
9,454
-631
-6% -$48.9K ﹤0.01% 976
2020
Q4 		$734K Buy
10,085
+468
+5% +$31.8K ﹤0.01% 969
2020
Q3 		$571K Sell
9,617
-740
-7% -$48K ﹤0.01% 932
2020
Q2 		$658K Sell
10,357
-200
-2% -$12.1K ﹤0.01% 864
2020
Q1 		$562K Sell
10,557
-360
-3% -$25K ﹤0.01% 836
2019
Q4 		$864K Buy
10,917
+2,529
+30% +$178K ﹤0.01% 818
2019
Q3 		$497K Sell
8,388
-232
-3% -$12.9K ﹤0.01% 945
2019
Q2 		$483K Sell
8,620
-5,094
-37% -$317K ﹤0.01% 993
2019
Q1 		$903K Buy
13,714
+2,844
+26% +$197K 0.01% 761
2018
Q4 		$686K Buy
10,870
+3,489
+47% +$250K 0.01% 810
2018
Q3 		$618K Buy
7,381
+462
+7% +$40.6K ﹤0.01% 888
2018
Q2 		$644K Sell
6,919
-583
-8% -$57.8K ﹤0.01% 859
2018
Q1 		$748K Sell
7,502
-1,283
-15% -$134K 0.01% 791
2017
Q4 		$857K Sell
8,785
-430
-5% -$41.1K 0.01% 787
2017
Q3 		$880K Buy
9,215
+33
+0.4% +$3.07K 0.01% 760
2017
Q2 		$824K Buy
9,182
+802
+10% +$66.7K 0.01% 812
2017
Q1 		$668K Buy
8,380
+325
+4% +$25.8K 0.01% 814
2016
Q4 		$626K Buy
8,055
+81
+1% +$6.1K 0.01% 767
2016
Q3 		$555K Buy
7,974
+130
+2% +$8.5K ﹤0.01% 796
2016
Q2 		$423K Sell
7,844
-6,895
-47% -$412K ﹤0.01% 859
2016
Q1 		$862K Sell
14,739
-1,384
-9% -$78.6K 0.01% 651
2015
Q4 		$1.07M Sell
16,123
-126
-0.8% -$8.75K 0.01% 614
2015
Q3 		$1.09M Buy
16,249
+485
+3% +$36.1K 0.01% 735
2015
Q2 		$1.21M Buy
15,764
+1,158
+8% +$90.2K ﹤0.01% 1528
2015
Q1 		$1.07M Sell
14,606
-507
-3% -$38K ﹤0.01% 1533
2014
Q4 		$1.19M Sell
15,113
-42
-0.3% -$3.15K ﹤0.01% 1441
2014
Q3 		$1.11M Buy
15,155
+937
+7% +$66.7K ﹤0.01% 1429
2014
Q2 		$956K Sell
14,218
-952
-6% -$62.6K ﹤0.01% 1473
2014
Q1 		$1.05M Buy
15,170
+298
+2% +$20.6K ﹤0.01% 1407
2013
Q4 		$1.09M Sell
14,872
-425
-3% -$29.8K ﹤0.01% 1364
2013
Q3 		$1.01M Sell
15,297
-901
-6% -$61.6K ﹤0.01% 1332
2013
Q2 		$1.06M Buy
+16,198
New +$1.01M ﹤0.01% 1257

Other funds holding STT

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
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
ROTUOC
Regents of the University of California Oakland, California $3.01B AUM 11.91% 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
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Harris Associates
Harris Associates Chicago, Illinois $75B AUM 11.27% 1-Year Est. Return

William Blair & Company's STT Position: Q1 2026 in Review

William Blair & Company increased its State Street (STT) stake by 2% in Q1 2026, buying an estimated $25.5K and bringing the position to 10,217 shares worth $1.29M. The position accounts for ﹤0.01% of the portfolio, ranked #859.

William Blair & Company first reported a position in STT in Q2 2013 and has held it in 52 quarters since. The position peaked at $1.65M in Q3 2023. 1,129 funds tracked by Wall St. Rank hold STT as of Q1 2026.

  • William Blair & Company held 10,217 shares of State Street worth $1.29M as of Q1 2026.
  • William Blair & Company bought 199 State Street shares in Q1 2026, an estimated $25.5K.
  • State Street made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #859 holding.
  • William Blair & Company first reported a position in State Street in Q2 2013 and has held it in 52 quarters since.
  • William Blair & Company's State Street position peaked at $1.65M in Q3 2023.
  • 1,129 funds tracked by Wall St. Rank held State Street as of Q1 2026.

Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.