William Blair & Company
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William Blair & Company’s EnerSys ENS Stock Holding History

William Blair & Company’s Portfolio ENS Stock Details ENS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$3.46M Buy
14,804
+7,343
+98% +$1.59M 0.01% 613
2026
Q1 		$1.3M Sell
7,461
-83
-1% -$14.1K ﹤0.01% 857
2025
Q4 		$1.11M Sell
7,544
-25
-0.3% -$3.34K ﹤0.01% 909
2025
Q3 		$855K Sell
7,569
-968
-11% -$95.2K ﹤0.01% 954
2025
Q2 		$732K Sell
8,537
-790
-8% -$68.9K ﹤0.01% 979
2025
Q1 		$854K Sell
9,327
-3,161
-25% -$308K ﹤0.01% 928
2024
Q4 		$1.15M Buy
12,488
+205
+2% +$20K ﹤0.01% 857
2024
Q3 		$1.25M Sell
12,283
-20,314
-62% -$2.05M ﹤0.01% 838
2024
Q2 		$3.37M Sell
32,597
-497
-2% -$48.8K 0.01% 566
2024
Q1 		$3.13M Sell
33,094
-2,193
-6% -$206K 0.01% 577
2023
Q4 		$3.56M Sell
35,287
-16,787
-32% -$1.54M 0.01% 537
2023
Q3 		$4.93M Sell
52,074
-5
-0% -$513 0.02% 438
2023
Q2 		$5.65M Sell
52,079
-998
-2% -$91.1K 0.02% 415
2023
Q1 		$4.61M Sell
53,077
-1,328
-2% -$112K 0.02% 457
2022
Q4 		$4.02M Sell
54,405
-4,417
-8% -$308K 0.02% 468
2022
Q3 		$3.42M Sell
58,822
-11,769
-17% -$749K 0.02% 496
2022
Q2 		$4.16M Sell
70,591
-30,977
-30% -$2.04M 0.02% 458
2022
Q1 		$7.57M Sell
101,568
-18,148
-15% -$1.36M 0.03% 371
2021
Q4 		$9.46M Sell
119,716
-318
-0.3% -$24.8K 0.03% 349
2021
Q3 		$8.94M Sell
120,034
-6,106
-5% -$542K 0.03% 346
2021
Q2 		$12.3M Sell
126,140
-17,732
-12% -$1.65M 0.04% 289
2021
Q1 		$13.1M Sell
143,872
-6,215
-4% -$569K 0.05% 272
2020
Q4 		$12.5M Sell
150,087
-873
-0.6% -$68.5K 0.05% 268
2020
Q3 		$10.1M Buy
150,960
+45,905
+44% +$3.16M 0.04% 274
2020
Q2 		$6.76M Buy
105,055
+20,919
+25% +$1.23M 0.03% 325
2020
Q1 		$4.17M Buy
84,136
+23,994
+40% +$1.57M 0.03% 372
2019
Q4 		$4.5M Sell
60,142
-4,838
-7% -$335K 0.02% 414
2019
Q3 		$4.29M Sell
64,980
-12,552
-16% -$788K 0.02% 398
2019
Q2 		$5.31M Buy
77,532
+58,876
+316% +$3.85M 0.03% 365
2019
Q1 		$1.22M Buy
+18,656
New +$1.41M 0.01% 683

Other funds holding ENS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
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
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
EARNEST Partners
EARNEST Partners Atlanta, Georgia $27.7B AUM 52.44% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

William Blair & Company's ENS Position: Q2 2026 in Review

William Blair & Company increased its EnerSys (ENS) stake by 98% in Q2 2026, buying an estimated $1.59M and bringing the position to 14,804 shares worth $3.46M. The position accounts for 0.01% of the portfolio, ranked #613.

William Blair & Company first reported a position in ENS in Q1 2019 and has held it in 30 quarters since. The position peaked at $13.1M in Q1 2021. 553 funds tracked by Wall St. Rank hold ENS as of Q2 2026.

  • William Blair & Company held 14,804 shares of EnerSys worth $3.46M as of Q2 2026.
  • William Blair & Company bought 7,343 EnerSys shares in Q2 2026, an estimated $1.59M.
  • EnerSys made up 0.01% of William Blair & Company's portfolio in Q2 2026, its #613 holding.
  • William Blair & Company first reported a position in EnerSys in Q1 2019 and has held it in 30 quarters since.
  • William Blair & Company's EnerSys position peaked at $13.1M in Q1 2021.
  • 553 funds tracked by Wall St. Rank held EnerSys as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.