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US ˙ NYSE ˙ US29275Y1029

SecurityENS / EnerSys
InstitutionState Street Corp
Latest Disclosed Ownership1,471,216 shares
Latest Disclosed Value $ 255,579,644
State Street Corp reports 0.47% increase in ownership of ENS / EnerSys

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 1,471,216 shares of EnerSys (US:ENS) valued at $255,579,644 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,464,360 shares of EnerSys. This represents a change in shares of 0.47% during the quarter. The current value of the position is $334,142,578 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ENERSYS COM 29275Y102 1,471,216 6,856 0.47 255,580 18.93 0.0088
2026-02-13 2025-12-31 13F ENERSYS COM 29275Y102 1,464,360 -9,772 -0.66 214,895 29.05 0.0072
2025-11-14 2025-09-30 13F ENERSYS COM 29275Y102 1,474,132 -50,024 -3.28 166,518 27.38 0.0058
2025-08-14 2025-06-30 13F ENERSYS COM 29275Y102 1,524,156 -2,787 -0.18 130,727 -6.52 0.0049
2025-05-15 2025-03-31 13F ENERSYS COM 29275Y102 1,526,943 -5,683 -0.37 139,837 -1.29 0.0058
2025-02-14 2024-12-31 13F ENERSYS COM 29275Y102 1,532,626 57,837 3.92 141,661 -5.88 0.0056
2024-11-14 2024-09-30 13F ENERSYS COM 29275Y102 1,474,789 13,524 0.93 150,502 -0.51 0.0061
2024-08-14 2024-06-30 13F ENERSYS COM 29275Y102 1,461,265 21,728 1.51 151,270 11.25 0.0066
2024-05-15 2024-03-31 13F ENERSYS COM 29275Y102 1,439,537 29,459 2.09 135,979 -4.48 0.0061
2024-02-14 2023-12-31 13F ENERSYS COM 29275Y102 1,410,078 11,017 0.79 142,361 7.48 0.0069
2023-11-14 2023-09-30 13F ENERSYS COM 29275Y102 1,399,061 -3,260 -0.23 132,449 -12.96 0.0073
2023-08-14 2023-06-30 13F ENERSYS COM 29275Y102 1,402,321 -11,686 -0.83 152,180 23.88 0.0080
2023-05-15 2023-03-31 13F ENERSYS COM 29275Y102 1,414,007 45,139 3.30 122,849 21.54 0.0069
2023-05-15 2022-12-31 13F/A-99 ENERSYS COM 29275Y102 1,368,868 27,113 2.02 101,077 29.50 0.0059
2023-05-15 2022-12-31 13F ENERSYS COM 29275Y102 1,368,868 27,113 101,077 0.0059
2022-11-15 2022-09-30 13F ENERSYS COM 29275Y102 1,341,755 14,319 1.08 78,050 -0.28 0.0049
2022-08-15 2022-06-30 13F ENERSYS COM 29275Y102 1,327,436 -13,773 -1.03 78,266 -21.74 0.0047
2022-05-16 2022-03-31 13F ENERSYS COM 29275Y102 1,341,209 49,207 3.81 100,014 -2.09 0.0049
2022-02-14 2021-12-31 13F ENERSYS COM 29275Y102 1,292,002 10,659 0.83 102,146 7.09 0.0048
2021-11-15 2021-09-30 13F ENERSYS COM 29275Y102 1,281,343 -14,377 -1.11 95,383 -24.68 0.0050
2021-08-16 2021-06-30 13F ENERSYS COM 29275Y102 1,295,720 16,697 1.31 126,631 9.04 0.0067
2021-07-09 2021-03-31 13F/A-1 ENERSYS COM 29275Y102 1,279,023 -13,493 -1.04 116,135 8.18 0.0067
2021-05-17 2021-03-31 13F ENERSYS COM 29275Y102 1,279,023 -13,493 116,135 0.0067
2021-02-16 2020-12-31 13F ENERSYS COM 29275Y102 1,292,516 4,917 0.38 107,356 24.22 0.0066
2020-11-10 2020-09-30 13F ENERSYS COM 29275Y102 1,287,599 -53,308 -3.98 86,424 0.11 0.0059
2020-08-14 2020-06-30 13F ENERSYS COM 29275Y102 1,340,907 -17,508 -1.29 86,328 28.33 0.0063
2020-06-19 2020-03-31 13F/A-1 ENERSYS COM 29275Y102 1,358,415 26,651 2.00 67,269 -32.50 0.0059
2020-05-11 2020-03-31 13F ENERSYS COM 29275Y102 1,358,415 26,651 67,269 5,907.5727
2020-02-06 2019-12-31 13F ENERSYS COM 29275Y102 1,331,764 -43,336 -3.15 99,656 9.91 0.0068
2019-11-14 2019-09-30 13F ENERSYS COM 29275Y102 1,375,100 -28,779 -2.05 90,674 -5.71 0.0068
2019-08-14 2019-06-30 13F ENERSYS COM 29275Y102 1,403,879 43,709 3.21 96,166 8.50 0.0072
2019-05-15 2019-03-31 13F ENERSYS COM 29275Y102 1,360,170 37,842 2.86 88,629 -13.64 0.0069
2019-02-12 2018-12-31 13F ENERSYS COM 29275Y102 1,322,328 -75,714 -5.42 102,626 -15.75 0.0093
2018-11-09 2018-09-30 13F ENERSYS Common equity shares 29275Y102 1,398,042 29,811 2.18 121,810 19.28 0.0094
2018-08-14 2018-06-30 13F ENERSYS Common equity shares 29275Y102 1,368,231 -39,651 -2.82 102,124 4.57 0.0085
2018-05-15 2018-03-31 13F ENERSYS Common equity shares 29275Y102 1,407,882 -81,182 -5.45 97,661 -5.81 0.0083
2018-02-14 2017-12-31 13F ENERSYS Common equity shares 29275Y102 1,489,064 30,301 2.08 103,685 2.76 0.0083
2017-11-14 2017-09-30 13F ENERSYS Common equity shares 29275Y102 1,458,763 -8,321 -0.57 100,902 -5.07 0.0087
2017-08-14 2017-06-30 13F ENERSYS Common equity shares 29275Y102 1,467,084 34,872 2.43 106,289 -5.99 0.0094
2017-05-15 2017-03-31 13F ENERSYS Common equity shares 29275Y102 1,432,212 48,515 3.51 113,059 4.61 0.0101
2017-02-09 2016-12-31 13F ENERSYS Common equity shares 29275Y102 1,383,697 48,651 3.64 108,072 16.99 0.0102
2017-01-13 2016-09-30 13F/A-1 ENERSYS Common equity shares 29275Y102 1,335,046 474,991 55.23 92,374 80.59 0.0093
2016-11-14 2016-09-30 13F ENERSYS Common equity shares 29275Y102 1,335,046 92,374
2016-08-12 2016-06-30 13F ENERSYS Common equity shares 29275Y102 860,055 21,692 2.59 51,150 9.50 0.0055
2016-05-20 2016-03-31 13F/A-1 ENERSYS Common equity shares 29275Y102 838,363 1,935 0.23 46,712 -0.15 0.0051
2016-05-12 2016-03-31 13F ENERSYS Common equity shares 29275Y102 838,363 46,712
2016-02-16 2015-12-31 13F ENERSYS Common equity shares 29275Y102 836,428 18,504 2.26 46,781 6.75 0.0051
2015-11-16 2015-09-30 13F ENERSYS Common equity shares 29275Y102 817,924 -118,191 -12.63 43,824 -33.40 0.0051
2015-08-13 2015-06-30 13F ENERSYS Common equity shares 29275Y102 936,115 -44,666 -4.55 65,798 4.43 0.0070
2015-05-15 2015-03-31 13F ENERSYS Common equity shares 29275Y102 980,781 -23,846 -2.37 63,009 1.62 0.0065
2015-02-11 2014-12-31 13F ENERSYS Common equity shares 29275Y102 1,004,627 -47,422 -4.51 62,004 0.51 0.0062
2014-11-12 2014-09-30 13F/A-1 ENERSYS Common equity shares 29275Y102 1,052,049 -28,418 -2.63 61,689 -17.00 0.0066
2014-11-10 2014-09-30 13F ENERSYS Common equity shares 29275Y102 1,052,049 61,689
2014-08-12 2014-06-30 13F ENERSYS Common equity shares 29275Y102 1,080,467 -65,871 -5.75 74,328 -6.42 0.0080
2014-05-15 2014-03-31 13F/A-1 ENERSYS Common equity shares 29275Y102 1,146,338 -16,790 -1.44 79,431 -2.56 0.0090
2014-05-13 2014-03-31 13F ENERSYS Common equity shares 29275Y102 1,147,124 79,485
2014-02-06 2013-12-31 13F/A-1 ENERSYS Common equity shares 29275Y102 1,163,128 8,043 0.70 81,521 16.40 0.0091
2014-02-06 2013-12-31 13F ENERSYS Common equity shares 29275Y102 1,029,256 38,734
2013-11-12 2013-09-30 13F ENERSYS Common equity shares 29275Y102 1,155,085 126,105 12.26 70,033 38.78 0.0086
2013-08-08 2013-06-30 13F ENERSYS Common equity shares 29275Y102 1,028,980 1,028,980 50,463 0.0066
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.