EnerSys director receives stock unit awards

TUFANO PAUL J reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

TUFANO PAUL J reported acquisition or exercise transactions in this Form 4 filing.

EnerSys director Paul J. Tufano received additional equity compensation through the company’s deferred compensation plan. He was granted 224 EnerSys stock units in lieu of cash fees at a reference price of $194.61 per share, which vested immediately under the EnerSys Voluntary Deferred Compensation Plan for Non-Employee Directors.

EnerSys also made a matching contribution of 44 stock units to his account. These matching units vest 25% on each of July 13, 2026, October 13, 2026, January 13, 2027, and April 13, 2027, subject to possible acceleration or cancellation in certain events. Each stock unit represents a right to receive one share of EnerSys common stock payable upon his Termination as defined in the plan, bringing his directly held common stock and stock units to 50,456 following these awards.

Insider Trade Summary

Grant/Award: 268 shares

Grant/Award 2 txns

Insider TUFANO PAUL J

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	224	$194.61	$44K
Grant/Award	Common Stock	44	$0.00	$0.00

Holdings After Transaction: Common Stock — 50,456 shares (Direct)

Footnotes (3)

1. F1. In lieu of receiving cash fees, the reporting person received 224 stock units, which immediately vested, in the EnerSys Voluntary Deferred Compensation Plan for Non-Employee Directors (the "Plan").
2. F2. This amount reflects a matching stock unit contribution by EnerSys for the reporting person's account in the Plan. The matching stock unit contribution vests 25% on each of July 13, 2026, October 13, 2026, January 13, 2027 and April 13, 2027. Such vesting is subject to acceleration or cancellation upon the occurrence of certain events.
3. F3. As a result of these transactions the reporting person has an additional 44 stock units in the Plan. Each of these stock units represents a right to receive one share of EnerSys common stock and is payable upon the reporting person's Termination, as defined in the Plan.

Key Figures

Fee-equivalent stock units granted: 224 stock units at $194.61 Matching stock units: 44 stock units Post-transaction holdings: 50,456 shares +2 more

5 metrics

Fee-equivalent stock units granted 224 stock units at $194.61 Granted in lieu of cash fees on April 13, 2026

Matching stock units 44 stock units Matching contribution under EnerSys deferred compensation plan

Post-transaction holdings 50,456 shares Total common stock/stock units directly held after grants

First vesting date July 13, 2026 25% of matching stock units vest

Final vesting date April 13, 2027 Last 25% of matching stock units vest

Key Terms

EnerSys Voluntary Deferred Compensation Plan for Non-Employee Directors, stock units, matching stock unit contribution, Termination

4 terms

EnerSys Voluntary Deferred Compensation Plan for Non-Employee Directors financial

"in the EnerSys Voluntary Deferred Compensation Plan for Non-Employee Directors (the "Plan")."

stock units financial

"the reporting person received 224 stock units, which immediately vested"

Stock units are individual pieces of ownership in a company, like slices of a pie that together make up the whole business. They matter to investors because each unit represents a claim on the company’s assets, profits and sometimes voting power, and changes in the number or value of these units affect ownership percentages, potential dividends and share dilution — all of which influence an investment’s worth.

matching stock unit contribution financial

"This amount reflects a matching stock unit contribution by EnerSys"

Termination financial

"payable upon the reporting person's Termination, as defined in the Plan."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did EnerSys (ENS) director Paul J. Tufano receive in this Form 4?

Paul J. Tufano received 224 EnerSys stock units in lieu of cash fees, which vested immediately, plus 44 matching stock units credited to his account under the EnerSys Voluntary Deferred Compensation Plan for Non-Employee Directors.

How do the EnerSys (ENS) matching stock units for Paul Tufano vest?

The 44 matching stock units vest in four equal 25% installments on July 13, 2026, October 13, 2026, January 13, 2027, and April 13, 2027, with vesting subject to possible acceleration or cancellation upon certain events.

What does each EnerSys (ENS) stock unit represent for Paul Tufano?

Each stock unit represents a right to receive one share of EnerSys common stock. The units are payable upon Tufano’s Termination, as defined in the EnerSys Voluntary Deferred Compensation Plan for Non-Employee Directors.

How many EnerSys (ENS) shares and stock units does Paul Tufano hold after these awards?

Following these awards, Paul Tufano holds 50,456 shares or stock units of EnerSys common stock directly, as reported in the filing’s post-transaction ownership figures for his non-derivative common stock position.

Was the EnerSys (ENS) transaction an open-market purchase or a grant?

The transactions were classified as grants or awards, not open-market purchases. They were stock unit awards under the EnerSys Voluntary Deferred Compensation Plan for Non-Employee Directors, including fee-equivalent units and matching stock unit contributions.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/15/2026 - 04:16 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

TUFANO PAUL J

(Last) (First) (Middle)

2366 BERNVILLE ROAD

(Street)

READING PENNSYLVANIA 19605

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
EnerSys [ ENS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/13/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/13/2026		A		224(1)	A	$194.61	50,412	D
Common Stock	04/13/2026		A		44(2)	A	$0	50,456(3)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. In lieu of receiving cash fees, the reporting person received 224 stock units, which immediately vested, in the EnerSys Voluntary Deferred Compensation Plan for Non-Employee Directors (the "Plan").

2. This amount reflects a matching stock unit contribution by EnerSys for the reporting person's account in the Plan. The matching stock unit contribution vests 25% on each of July 13, 2026, October 13, 2026, January 13, 2027 and April 13, 2027. Such vesting is subject to acceleration or cancellation upon the occurrence of certain events.

3. As a result of these transactions the reporting person has an additional 44 stock units in the Plan. Each of these stock units represents a right to receive one share of EnerSys common stock and is payable upon the reporting person's Termination, as defined in the Plan.

	/s/ John Yarbrough by Power of Attorney	04/15/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)