What is the 13F Pro Quality Score for ENS?

13F Pro ranks EnerSys (ENS) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View ENS's current score at https://13fpro.ai/research/ENS (free sign-up required for the full ranking).

Where does 13F Pro source ENS data?

All EnerSys fundamentals and ownership data come directly from SEC EDGAR. EnerSys files with the SEC under CIK 1289308. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is ENS in?

EnerSys (ENS) is classified in the Technology sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/technology.

How often is ENS research updated on 13F Pro?

ENS's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

EnerSys(ENS)Stock Analysis

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13F Pro Quality Score

56.0/100

Rank #1,128 of 2,879 stocksTOP 50%

View Technology peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Aug 14, 2026.

Revenue Growth

7.2/100

Profitability

66.6/100

Balance Sheet

82.5/100

Earnings Quality

41.8/100

Free Cash Flow

65.0/100

Institutional Flow

64.0/100

Revenue Scale

73.0/100

Dilution Risk

57.1/100

ENS Stock Analysis & AI Quality Score

AI stock analysis and institutional research for EnerSys (ENS), a Technology sector company. 13F Pro's AI-powered ranking engine scores ENS at 56.0/100 on a 32-signal composite quality model, placing it at rank #1,128 of 2,879 stocks — the top half of the AI-ranked universe. ENS scores in the top quartile across balance sheet strength (82.5). Areas of concern include revenue growth (7.2), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q4 2026), EnerSys reports quarterly revenue of $987.9M, net income of $77.3M, an operating margin of 12.5%. Top institutional holders of ENS by reported 13-F value include BlackRock,, VANGUARD PORTFOLIO MANAGEMENT, VANGUARD CAPITAL MANAGEMENT, based on the most recent SEC filings. ENS trades on the NYSE exchange and files with the SEC under CIK 1289308. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate ENS daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for EnerSys directly from SEC EDGAR. EnerSys's 13F Pro composite quality score has ranged between 8 and 60 since 2021, currently 56.0 — a stable long-term trajectory across 41 quarterly and live scoring snapshots.

✦

Fun facts about EnerSys

Quirks, history, and lore behind ENS — the kind of stuff that makes a stock memorable.

1
The Basics
U.S. industrial technology company · mid-cap · listed on NYSE · headquartered in Pennsylvania.
2
The Numbers
Annual revenue in the range of $3–4 billion, with operations spanning more than 40 countries — quietly global for a company most people have never heard of.
3
The History
Its roots trace back to the early 20th century, and it was spun off from Yuasa and other predecessor businesses before going public as a standalone company in the 2000s.
4
The Secret
Its biggest customers aren't consumers — they're data centers, military contractors, and telecom operators who absolutely cannot afford the lights to go out.
5
The Lore
It supplies reserve power batteries to the U.S. Armed Forces and is one of the world's largest makers of industrial batteries — the kind that keep cell towers alive during a blackout.
6
The Giveaway
The world's largest manufacturer of stored energy solutions for industrial applications, its ticker is literally the first three letters of "energy" — and yes, it's spelled with an 'S'.

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Revenue

Q4 2026

$987.9M

Net Income

Q4 2026

$77.3M

Free Cash Flow

Q4 2026

$131.2M

Operating Margin

Q4 2026

12.5%

D/E Ratio

Q4 2026

0.58

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro+

Revenue

+3.7% YoY

$3.75BFY 2026

FY23 $3.71BFY24 $3.58BFY25 $3.62BFY26 $3.75B

Net Income

-19.3% YoY

$293.6MFY 2026

FY23 $175.8MFY24 $269.1MFY25 $363.7MFY26 $293.6M

Operating Income

-8.2% YoY

$426.5MFY 2026

FY23 $278.4MFY24 $351.6MFY25 $464.7MFY26 $426.5M

EPS (Diluted)

-14.3% YoY

$7.70FY 2026

FY23 $4.25FY24 $6.50FY25 $8.99FY26 $7.70

Total Assets

+0.8% YoY

$4.00BFY 2026

FY23 $3.62BFY24 $3.47BFY25 $3.97BFY26 $4.00B

Total Debt

-0.3% YoY

$1.11BFY 2026

FY23 $1.07BFY24 $832.4MFY25 $1.11BFY26 $1.11B

Op. Cash Flow

+110.4% YoY

$547.6MFY 2026

FY23 $279.9MFY24 $457.0MFY25 $260.3MFY26 $547.6M

Metric	FY 2026	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021
Revenue	$3.75B +3.7%	$3.62B +1.0%	$3.58B -3.4%	$3.71B +10.5%	$3.36B +12.7%	$2.98B
Net Income	$293.6M -19.3%	$363.7M +35.2%	$269.1M +53.1%	$175.8M +22.2%	$143.9M +0.4%	$143.4M
Operating Income	$426.5M -8.2%	$464.7M +32.2%	$351.6M +26.3%	$278.4M +35.0%	$206.3M -4.7%	$216.4M
EPS (Diluted)	$7.70 -14.3%	$8.99 +38.3%	$6.50 +52.9%	$4.25 +26.5%	$3.36 +1.2%	$3.32
Total Assets	$4.00B +0.8%	$3.97B +14.6%	$3.47B -4.2%	$3.62B -3.2%	$3.74B +7.9%	$3.46B
Total Debt	$1.11B -0.3%	$1.11B +33.6%	$832.4M -22.4%	$1.07B -17.4%	$1.30B +29.3%	$1.00B
Operating Cash Flow	$547.6M +110.4%	$260.3M -43.0%	$457.0M +63.3%	$279.9M +526.8%	$-65.6M -118.3%	$358.4M

AI Insight: ENS Financial Trends

Revenue volatility masks operational resilience; debt reduction and operating cash flow strength offset Q2 2025 earnings dip.

• Operating income stabilized 124–131M range across last three quarters after Q2 2025 trough of 86M; op margin ~12.5% in Q1 2026.

• Operating cash flow surged to 218M in Q3 2025 and sustained above 135M through Q1 2026, vs. 10–34M in mid-2024.

• Total debt declined 9% from 1,303M (Q4 2024 peak) to 1,109M (Q1 2026); equity grew modestly to 1,905M.

⚠ Revenue trends erratic: 975M (Q1 2025) dropped to 893M (Q2 2025), recovered to 988M (Q1 2026); cyclicality unclear.

⚠ Net income volatility high (57–115M range); Q2 2025 net income fell 41% YoY despite stable op income.

AI Insight: ENS Ratio Trends

EnerSys margins and returns remain volatile; Q1 2026 shows stabilization but well below Q4 2024 peak.

• OpMargin fell from 15.7% in Q4 2024 to 12.5% in Q1 2026, reversing early 2025 strength. NPM also compressed from 12.7% to 7.8%.

• ROIC declined 1.7pp from Q4 2024 (18.1%) to Q1 2026 (16.4%), though stabilized vs. Q2-Q3 2025 trough of 10.9%–12.0%.

• Debt-to-equity held steady at 0.58 in Q1 2026, down from Q4 2024 peak of 0.71, signaling improved leverage discipline.

⚠ Profitability swings remain pronounced: OpMargin ranged 9.7%–15.7% over last 9 quarters, indicating cyclicality or operational inconsistency.

⚠ ROE/ROA deteriorated Q4 2025 to Q1 2026 (ROE 19.1% → 16.2%), despite margin recovery, suggesting asset or capital efficiency headwinds.

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Available Research

13F Pro tracks comprehensive data for EnerSys including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of ENS

BlackRock, Inc.
$881.8M5,076,203 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$412.7M2,375,763 sh
VANGUARD CAPITAL MANAGEMENT LLC
$287.3M1,654,000 sh
DIMENSIONAL FUND ADVISORS LP
$262.4M1,510,841 sh
STATE STREET CORP
$255.6M1,471,216 sh
Invesco Ltd.
$201.3M1,158,538 sh
GEODE CAPITAL MANAGEMENT, LLC
$167.2M962,586 sh
EARNEST PARTNERS LLC
$164.3M945,565 sh
FIRST TRUST ADVISORS LP
$154.2M887,407 sh
AQR CAPITAL MANAGEMENT LLC
$151.7M891,847 sh

Fund	Value	Shares
BlackRock, Inc.	$881.8M	5,076,203
VANGUARD PORTFOLIO MANAGEMENT LLC	$412.7M	2,375,763
VANGUARD CAPITAL MANAGEMENT LLC	$287.3M	1,654,000
DIMENSIONAL FUND ADVISORS LP	$262.4M	1,510,841
STATE STREET CORP	$255.6M	1,471,216
Invesco Ltd.	$201.3M	1,158,538
GEODE CAPITAL MANAGEMENT, LLC	$167.2M	962,586
EARNEST PARTNERS LLC	$164.3M	945,565
FIRST TRUST ADVISORS LP	$154.2M	887,407
AQR CAPITAL MANAGEMENT LLC	$151.7M	891,847

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Is ENS a good stock to buy?

13F Pro's AI-powered analysis of EnerSys (ENS) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Technology sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for ENS are available on the ENS stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing.

Which hedge funds own ENS?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling ENS. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of EnerSys's investment landscape.