EnerSys
US ˙ NYSE ˙ US29275Y1029

SecurityENS / EnerSys
InstitutionSei Investments Co
Latest Disclosed Ownership72,634 shares
Latest Disclosed Value $ 10,658,523
Sei Investments Co reports 411.76% increase in ownership of ENS / EnerSys

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 72,634 shares of EnerSys (US:ENS) valued at $10,659,040 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 14,193 shares of EnerSys. This represents a change in shares of 411.76% during the quarter. The current value of the position is $17,312,314 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)
2026-02-13 2025-12-31 13F ENERSYS COM 29275Y102 72,634 58,441 411.76 10,659 564.88
2025-11-13 2025-09-30 13F ENERSYS COM 29275Y102 14,193 -455 -3.11 1,603 27.63 0.0017
2025-08-14 2025-06-30 13F ENERSYS COM 29275Y102 14,648 6,569 81.31 1,256 69.96 0.0015
2025-05-14 2025-03-31 13F/A-1 ENERSYS COM 29275Y102 8,079 2,077 34.61 740 33.39 0.0010
2025-05-13 2025-03-31 13F ENERSYS COM 29275Y102 3,031 -2,971 279 0.0003
2025-02-11 2024-12-31 13F ENERSYS COM 29275Y102 6,002 -1,190 -16.55 555 -24.42 0.0007
2024-11-12 2024-09-30 13F ENERSYS COM 29275Y102 7,192 -2,861 -28.46 734 -29.52 0.0010
2024-08-13 2024-06-30 13F ENERSYS COM 29275Y102 10,053 -1,087 -9.76 1,041 -1.14 0.0015
2024-05-07 2024-03-31 13F ENERSYS COM 29275Y102 11,140 -1,089 -8.91 1,052 -14.75 0.0015
2024-02-14 2023-12-31 13F ENERSYS COM 29275Y102 12,229 -2,428 -16.57 1,235 -11.03 0.0020
2023-11-14 2023-09-30 13F ENERSYS COM 29275Y102 14,657 -6,850 -31.85 1,387 -40.55 0.0025
2023-08-11 2023-06-30 13F ENERSYS COM 29275Y102 21,507 5,779 36.74 2,334 70.79 0.0041
2023-05-12 2023-03-31 13F ENERSYS COM 29275Y102 15,728 -833 -5.03 1,366 11.78 0.0025
2023-02-10 2022-12-31 13F ENERSYS COM 29275Y102 16,561 6,087 58.12 1,223 100.66 0.0027
2022-11-14 2022-09-30 13F ENERSYS COM 29275Y102 10,474 1,274 13.85 609 12.15 0.0014
2022-08-15 2022-06-30 13F ENERSYS COM 29275Y102 9,200 1,985 27.51 543 1.12 0.0012
2022-05-13 2022-03-31 13F ENERSYS COM 29275Y102 7,215 -1,365 -15.91 537 -20.68 0.0011
2022-02-14 2021-12-31 13F ENERSYS COM 29275Y102 8,580 587 7.34 677 14.17 0.0013
2021-11-12 2021-09-30 13F ENERSYS COM 29275Y102 7,993 -20,942 -72.38 593 -79.04 0.0012
2021-08-06 2021-06-30 13F ENERSYS COM 29275Y102 28,935 -1,407 -4.64 2,829 2.69 0.0063
2021-05-12 2021-03-31 13F ENERSYS COM 29275Y102 30,342 -1,992 -6.16 2,755 2.57 0.0069
2021-02-08 2020-12-31 13F ENERSYS COM 29275Y102 32,334 -4,964 -13.31 2,686 7.31 0.0069
2020-12-04 2020-09-30 13F/A-1 ENERSYS COM 29275Y102 37,298 -2,381 -6.00 2,503 -2.00 0.0072
2020-11-06 2020-09-30 13F ENERSYS COM 29275Y102 37,602 -2,077 2,523 6,074.8230
2020-08-17 2020-06-30 13F/A-1 ENERSYS COM 29275Y102 39,679 -15,648 -28.28 2,554 -5.62 0.0079
2020-08-11 2020-06-30 13F ENERSYS COM 29275Y102 45,288 -10,039 3,387 9,187.4178
2020-05-14 2020-03-31 13F ENERSYS COM 29275Y102 55,327 -4,360 -7.30 2,706 -39.92 0.0099
2020-02-06 2019-12-31 13F ENERSYS COM 29275Y102 59,687 20,365 51.79 4,504 73.70 0.0134
2019-11-12 2019-09-30 13F ENERSYS COM 29275Y102 39,322 -30,143 -43.39 2,593 -45.51 0.0066
2019-08-14 2019-06-30 13F ENERSYS COM 29275Y102 69,465 15,014 27.57 4,759 34.13 0.0155
2019-05-15 2019-03-31 13F ENERSYS COM 29275Y102 54,451 -2,829 -4.94 3,548 -28.91 0.0119
2019-02-13 2018-12-31 13F ENERSYS COM 29275Y102 57,280 -13,733 -19.34 4,991 -19.34 0.0178
2018-11-08 2018-09-30 13F ENERSYS COM 29275Y102 71,013 16,624 30.57 6,188 52.41 0.0224
2018-08-03 2018-06-30 13F ENERSYS COM 29275Y102 54,389 -3,767 -6.48 4,060 0.62 0.0138
2018-05-11 2018-03-31 13F ENERSYS COM 29275Y102 58,156 9,030 18.38 4,035 17.95 0.0155
2018-02-08 2017-12-31 13F ENERSYS COM 29275Y102 49,126 -2,381 -4.62 3,421 -3.99 0.0119
2017-11-06 2017-09-30 13F ENERSYS COM 29275Y102 51,507 -44,821 -46.53 3,563 -48.95 0.0127
2017-07-31 2017-06-30 13F ENERSYS COM 29275Y102 96,328 15,138 18.65 6,979 8.89 0.0278
2017-05-05 2017-03-31 13F ENERSYS COM 29275Y102 81,190 -358 -0.44 6,409 0.63 0.0281
2017-02-02 2016-12-31 13F ENERSYS COM 29275Y102 81,548 -3,029 -3.58 6,369 8.83 0.0308
2016-11-04 2016-09-30 13F ENERSYS COM 29275Y102 84,577 2,263 2.75 5,852 19.55 0.0297
2016-08-11 2016-06-30 13F ENERSYS COM 29275Y102 82,314 1,885 2.34 4,895 9.21 0.0294
2016-05-10 2016-03-31 13F/A-1 ENERSYS COM 29275Y102 80,429 -23,220 -22.40 4,482 -22.68 0.0279
2016-02-03 2015-12-31 13F ENERSYS COM 29275Y102 103,649 44,811 76.16 5,797 83.86 0.0353
2015-11-02 2015-09-30 13F/A-1 ENERSY COM 29275Y102 58,838 10,628 22.05 3,153 -6.96 0.0289
2015-10-30 2015-09-30 13F DIREXION SHS ETF TR COM 29275Y102 58,838 3,153
2015-08-07 2015-06-30 13F/A-1 ENERSYS COM 29275Y102 48,210 101 0.21 3,389 9.64 0.0306
2015-08-04 2015-06-30 13F ENERSYS COM 29275Y102 48,210 101 3,389 0.0306
2015-05-14 2015-03-31 13F/A-1 ENERSYS COM 29275Y102 48,109 -5 -0.01 3,091 4.11 0.0268
2015-05-01 2015-03-31 13F ENERSYS COM 29275Y102 48,109 3,091
2015-02-10 2014-12-31 13F ENERSYS COM 29275Y102 48,114 48,114 2,969 0.0262
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.