EnerSys director acquires 183 stock units

Q: How many stock units did EnerSys director Lauren Knausenberger acquire?

Lauren Knausenberger acquired 183 additional stock units in the Plan: 153 in lieu of cash fees and 30 as a matching contribution. Each stock unit represents a right to receive one share of EnerSys common stock.

Q: When do the EnerSys matching stock units vest?

The 30 matching stock units vest 25% on each of January 15, 2027, April 15, 2027, July 15, 2027, and October 15, 2027. Vesting is subject to acceleration or cancellation upon certain events.

The matching contribution vests in four 25% installments on dates from January 15, 2027, through October 15, 2027, subject to acceleration or cancellation.

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Rhea-AI Filing Summary

On October 15, 2026, EnerSys director Lauren Knausenberger acquired 153 stock units in lieu of cash fees; those units immediately vested. EnerSys also contributed 30 matching stock units to her account in its Voluntary Deferred Compensation Plan for Non-Employee Directors. The matching contribution vests 25% on each of January 15, 2027, April 15, 2027, July 15, 2027, and October 15, 2027, subject to acceleration or cancellation upon certain events. The transactions resulted in 183 additional stock units in the Plan. Each unit represents a right to receive one share of EnerSys common stock, payable upon her Termination as defined in the Plan.

Insider Trade Summary

Grant/Award: 183 shares

Grant/Award 2 txns

Insider Knausenberger Lauren

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock ^F1	153	$172.82	$26K
Grant/Award	Common Stock ^{F2, F3}	30	$0.00	$0.00

Holdings After Transaction: Common Stock — 6,807 shares (Direct)

Footnotes (3)

F1. In lieu of receiving cash fees, the reporting person received 153 stock units, which immediately vested, in the EnerSys Voluntary Deferred Compensation Plan for Non-Employee Directors (the "Plan").
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.
F3. As a result of these transactions the reporting person has an additional 183 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: 153 stock units Matching stock unit contribution: 30 stock units Additional stock units in the Plan: 183 stock units +1 more

4 metrics

Stock units in lieu of cash fees 153 stock units Received October 15, 2026; immediately vested

Matching stock unit contribution 30 stock units Contributed October 15, 2026

Additional stock units in the Plan 183 stock units Resulting position from the transactions

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

Key Terms

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

3 terms

Voluntary Deferred Compensation Plan for Non-Employee Directors financial

"EnerSys Voluntary Deferred Compensation Plan for Non-Employee Directors"

matching stock unit contribution financial

"a matching stock unit contribution by EnerSys"

Termination financial

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

FAQ

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How many stock units did EnerSys director Lauren Knausenberger acquire?

Lauren Knausenberger acquired 183 additional stock units in the Plan: 153 in lieu of cash fees and 30 as a matching contribution. Each stock unit represents a right to receive one share of EnerSys common stock.

When do the EnerSys matching stock units vest?

The 30 matching stock units vest 25% on each of January 15, 2027, April 15, 2027, July 15, 2027, and October 15, 2027. Vesting is subject to acceleration or cancellation upon certain events.

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

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Available on EDGAR 10/19/2026 - 04:17 PM EDT Accepted by SEC EDGAR 10/19/2026 - 04:17 PM EDT

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^*

Knausenberger Lauren

(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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/15/2026		A		153⁽¹⁾	A	$172.82	6,777	D
Common Stock	10/15/2026		A		30⁽²⁾	A	$0	6,807⁽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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. In lieu of receiving cash fees, the reporting person received 153 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 183 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)

Source: View Original Filing on SEC EDGAR