EnerSys director Paul J. Tufano acquires 303 stock units

The 50-unit matching contribution vests 25% on each of January 15, April 15, July 15, and October 15, 2027, subject to acceleration or cancellation upon certain events.

Rhea-AI Filing Summary

EnerSys director Paul J. Tufano acquired 253 stock units in lieu of cash fees on October 15, 2026; the units immediately vested. EnerSys also made a 50-unit matching contribution to his Plan account, vesting 25% on each of January 15, April 15, July 15, and October 15, 2027, subject to acceleration or cancellation upon certain events. The account received 303 additional stock units; each represents a right to receive one EnerSys common share, payable upon his Termination as defined in the Plan.

Insider Trade Summary

Grant/Award: 303 shares

Grant/Award 2 txns

Insider TUFANO PAUL J

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	253	$172.82	$44K
Grant/Award	Common Stock F2, F3	50	$0.00	$0.00

Holdings After Transaction: Common Stock — 52,596 shares (Direct)

Footnotes (3)

1. F1. In lieu of receiving cash fees, the reporting person received 253 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 January 15, 2027, April 15, 2027, July 15, 2027, and October 15, 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 303 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

Stock units in lieu of cash fees: 253 stock units Matching contribution: 50 stock units Additional stock units in Plan account: 303 stock units +2 more

5 metrics

Stock units in lieu of cash fees 253 stock units Received October 15, 2026; immediately vested

Matching contribution 50 stock units Received October 15, 2026; vests in 2027

Additional stock units in Plan account 303 stock units Result of the October 15, 2026 transactions

Matching contribution vesting installment 25% Vests on each of January 15, April 15, July 15, and October 15, 2027

Shares represented by each stock unit 1 common share Payable upon the reporting person's Termination as defined in the Plan

Key Terms

stock units, matching stock unit contribution, Termination

3 terms

stock units financial

"received 253 stock units"

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

"reflects a matching stock unit contribution"

Termination financial

"payable upon the reporting person's Termination"

FAQ

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

How many stock units did ENS director Paul J. Tufano receive?

Paul J. Tufano received 303 additional stock units in his Plan account on October 15, 2026: 253 in lieu of cash fees and a 50-unit matching contribution.

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

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Available on EDGAR 10/19/2026 - 04:15 PM EDT Accepted by SEC EDGAR 10/19/2026 - 04:15 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)
10/15/2026

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	10/15/2026		A		253(1)	A	$172.82	52,546	D
Common Stock	10/15/2026		A		50(2)	A	$0	52,596(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 253 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 January 15, 2027, April 15, 2027, July 15, 2027, and October 15, 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 303 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	10/19/2026
	** 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)