EnerSys (ENS) Ownership
ENS ownership summary
as of October 18, 2026- Institutions
- 104.7% of shares outstanding
- Insiders
- 1.29% of shares outstanding
- Shares outstanding
- 36.1M
- Float
- 35.9M shares available to trade
- Short interest
- 9.28% 2.9M shares short
- Days to cover
- 5.00 short interest up 32.0% vs prior month
- Institutions 104.66%
- Insiders 1.29%
ENS top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 14.48% | 5.2M | $881.4M | +147,709 (+2.9%) | June 30, 2026 |
| 2 | Vanguard Portfolio Management, LLC | 6.51% | 2.3M | $395.8M | −29,625 (−1.2%) | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 4.57% | 1.6M | $278.1M | −5,617 (−0.3%) | June 30, 2026 |
| 4 | State Street Corp | 4.20% | 1.5M | $255.6M | +43,542 (+3.0%) | June 30, 2026 |
| 5 | Dimensional Fund Advisors, Inc. | 3.42% | 1.2M | $208.1M | −277,598 (−18.4%) | June 30, 2026 |
| 6 | Amvescap Plc. | 3.35% | 1.2M | $203.7M | +48,722 (+4.2%) | June 30, 2026 |
| 7 | Geode Capital Management, LLC | 3.10% | 1.1M | $188.5M | +154,867 (+16.1%) | June 30, 2026 |
| 8 | T. Rowe Price Associates, Inc. | 2.61% | 942K | $159.0M | +827,600 (+722.5%) | June 30, 2026 |
| 9 | AQR Capital Management LLC | 2.51% | 905K | $152.8M | +13,501 (+1.5%) | June 30, 2026 |
| 10 | Earnest Partners LLC | 2.49% | 897K | $151.3M | −48,584 (−5.1%) | June 30, 2026 |
| 11 | First Trust Advisors L.P. | 2.29% | 827K | $139.6M | −60,257 (−6.8%) | June 30, 2026 |
| 12 | Newsouth Capital Management Inc | 2.03% | 734K | $123.8M | −51,453 (−6.6%) | June 30, 2026 |
| 13 | LSV Asset Management | 1.75% | 632K | $106.5M | −87,649 (−12.2%) | June 30, 2026 |
| 14 | Franklin Templeton Inc | 1.51% | 543K | $91.6M | −5,068 (−0.9%) | June 30, 2026 |
| 15 | Principal Financial Group Inc | 1.43% | 515K | $86.8M | −36,405 (−6.6%) | June 30, 2026 |
| 16 | Northern Trust Corp | 1.42% | 511K | $86.2M | +5,363 (+1.1%) | June 30, 2026 |
| 17 | Charles Schwab Investment Management Inc | 1.41% | 510K | $86.0M | −35,896 (−6.6%) | June 30, 2026 |
| 18 | NORGES BANK | 1.35% | 488K | $82.4M | −47,399 (−8.8%) | June 30, 2026 |
| 19 | Boston Partners Global Investors, Inc | 1.25% | 450K | $75.9M | −61,196 (−12.0%) | June 30, 2026 |
| 20 | Paradigm Capital Management, Inc. | 1.21% | 437K | $73.8M | −4,600 (−1.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 7 holders added 1.2M shares and 13 cut 751K.
ENS top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Mid-Cap ETF | 3.56% | 1.3M | $216.8M | −456 (−0.0%) | September 30, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 3.22% | 1.2M | $195.9M | −1,486 (−0.1%) | August 31, 2026 |
| 3 | iShares Russell 2000 ETF | 2.66% | 958K | $161.6M | −9,129 (−0.9%) | September 30, 2026 |
| 4 | Vanguard Small Cap Index | 2.33% | 840K | $141.8M | +1,253 (+0.1%) | August 31, 2026 |
| 5 | First Trust SMID Cp Rising Div Achv ETF | 1.51% | 546K | $92.1M | — | September 30, 2026 |
| 6 | Vanguard MStar Small Cap Value Index | 1.48% | 534K | $90.0M | +400 (+0.1%) | August 31, 2026 |
| 7 | Fidelity Small Cap Index | 1.13% | 407K | $68.7M | +3,467 (+0.9%) | July 31, 2026 |
| 8 | Invesco Small Cap Value A | 1.09% | 395K | $66.6M | +23,404 (+6.3%) | August 31, 2026 |
| 9 | Vanguard Strategic Equity Inv | 0.90% | 326K | $55.0M | −35,226 (−9.7%) | June 30, 2026 |
| 10 | iShares Russell 2000 Growth ETF | 0.89% | 322K | $54.3M | −408 (−0.1%) | September 30, 2026 |
| 11 | Invesco S&P MidCap Momentum ETF | 0.87% | 314K | $53.0M | — | September 30, 2026 |
| 12 | Harbor Small Cap Value Instl | 0.87% | 313K | $52.7M | −12,613 (−3.9%) | June 30, 2026 |
| 13 | State Street® SPDR® S&P MIDCAP 400® ETF | 0.75% | 269K | $45.5M | −3,039 (−1.1%) | August 31, 2026 |
| 14 | Fidelity Enhanced Small Cap Core ETF | 0.63% | 225K | $38.0M | +471 (+0.2%) | September 30, 2026 |
| 15 | Franklin Small Cap Value A | 0.61% | 219K | $36.9M | +112,103 (+105.2%) | August 31, 2026 |
| 16 | T. Rowe Price Integrated US Sm Gr Eq | 0.60% | 216K | $36.5M | — | August 31, 2026 |
| 17 | Vanguard Russell 2000 ETF | 0.59% | 214K | $36.1M | +5,021 (+2.4%) | August 31, 2026 |
| 18 | Vanguard Explorer Inv | 0.58% | 209K | $35.3M | +85,979 (+69.8%) | June 30, 2026 |
| 19 | iShares S&P Mid-Cap 400 Growth ETF | 0.58% | 208K | $35.1M | −222 (−0.1%) | September 30, 2026 |
| 20 | American Funds SMALLCAP World A | 0.55% | 200K | $33.7M | +200,000 (0.0%) | June 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
ENS insider transactions
latest 5| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-12-10 | Chad C Uplinger | Sell | $151.46 | 6,702 | $1.0M |
| 2025-05-30 | Chad C Uplinger | Buy | $83.65 | 295 | $24,677 |
| 2025-05-30 | Shawn M O'connell | Buy | $83.76 | 475 | $39,786 |
| 2025-05-29 | Michael T. McCaul | Sell | $83.96 | — | — |
| 2025-05-23 | Andrea J Funk | Buy | $80.20 | 315 | $25,263 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
ENS shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns ENS
Institutional investors own 104.7% of EnerSys's shares and insiders 1.29%. The largest holder is BlackRock Inc with 14.48% of the shares (5.2M), as of June 30, 2026. Among the top 20 institutions, 7 added shares and 13 reduced their stake in the latest filings. Short interest is 9.28% of the float, or 5.00 days of average trading volume. The share count fell 20.5% since 2014.
Related: ENS analyst forecast, ENS key metrics, ENS dividend history. See the ENS stock overview for the latest quote and news.
ENS ownership FAQ
Who owns the most EnerSys stock?
The largest shareholders of EnerSys are BlackRock Inc (14.48%), Vanguard Portfolio Management, LLC (6.51%), Vanguard Capital Management, LLC (4.57%), State Street Corp (4.20%), Dimensional Fund Advisors, Inc. (3.42%).
What percentage of EnerSys is owned by institutions?
Institutions hold 104.7% of EnerSys's shares outstanding; insiders hold 1.29%.
Which funds own EnerSys?
The largest fund holders of EnerSys are iShares Core S&P Mid-Cap ETF (3.56%), Vanguard MStar Total Stk Mkt Idx Invest (3.22%), iShares Russell 2000 ETF (2.66%), Vanguard Small Cap Index (2.33%), First Trust SMID Cp Rising Div Achv ETF (1.51%).
What is EnerSys's short interest?
2.9M shares of EnerSys were sold short, 9.28% of the float; at the average daily volume it would take 5.00 days to cover.
Are insiders buying or selling EnerSys?
Of the latest 5 reported insider transactions in EnerSys (since May 23, 2025), 3 were purchases and 2 were sales.
How many shares of EnerSys are outstanding?
EnerSys has 36.1M shares outstanding, of which 35.9M are in the public float.