EnerSys (ENS) CEO O'Connell has 3,399 shares withheld tied to RSU vesting

Rhea-AI Filing Summary

EnerSys President and CEO Shawn M. O'Connell reported two transactions in company common stock related to equity compensation. On August 8 and 9, 2026, a total of 3,399 shares were delivered or withheld at $191.72 per share for payment of exercise price or tax liability in connection with the vesting of Restricted Stock Units granted on August 8, 2025 and August 9, 2024. These are administrative dispositions tied to RSU vesting rather than open-market purchases or sales.

Insider Trade Summary

Net Seller: 3,399 shares

Net Sell 2 txns

Insider O'Connell Shawn M.

Role President and CEO

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock F2	822	$191.72	$158K
Exercise Price or Tax Liability	Common Stock F1	2,577	$191.72	$494K

Holdings After Transaction: Common Stock — 68,183 shares (Direct)

Footnotes (2)

1. F1. Shares were forfeited in connection with the vesting of Restricted Stock Units granted to the reporting person on August 8, 2025.
2. F2. Shares were forfeited in connection with the vesting of Restricted Stock Units granted to the reporting person on August 9, 2024.

Key Figures

Shares delivered/withheld Aug 8, 2026: 2,577 shares at $191.72 per share Shares delivered/withheld Aug 9, 2026: 822 shares at $191.72 per share Total shares delivered/withheld: 3,399 shares +1 more

4 metrics

Shares delivered/withheld Aug 8, 2026 2,577 shares at $191.72 per share Code F disposition for exercise price or tax liability on RSU vesting granted August 8, 2025

Shares delivered/withheld Aug 9, 2026 822 shares at $191.72 per share Code F disposition for exercise price or tax liability on RSU vesting granted August 9, 2024

Total shares delivered/withheld 3,399 shares Aggregate of two code F transactions reported by the EnerSys CEO

Rule 10b5-1 plan checkbox false Affirmative 10b5-1 checkbox not selected for these transactions

Key Terms

Restricted Stock Units, Payment of exercise price or tax liability by delivering or withholding securities, code F

3 terms

Restricted Stock Units financial

"Shares were forfeited in connection with the vesting of Restricted Stock Units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Payment of exercise price or tax liability by delivering or withholding securities financial

"transaction_code_description: Payment of exercise price or tax liability by delivering or withholding"

code F financial

"Both transactions are coded F, indicating an exercise-price-or-tax-liability disposition"

FAQ

What did EnerSys (ENS) CEO Shawn M. O'Connell report in this Form 4?

Shawn M. O'Connell reported two code F transactions in EnerSys common stock, where 3,399 shares were delivered or withheld to cover exercise price or tax liability tied to vesting Restricted Stock Units.

How many EnerSys (ENS) shares were involved in Shawn M. O'Connell’s latest transactions?

The filing shows 3,399 shares of EnerSys common stock were delivered or withheld, consisting of 2,577 shares on August 8, 2026 and 822 shares on August 9, 2026, all at $191.72 per share.

Were Shawn M. O'Connell’s EnerSys (ENS) Form 4 transactions open-market sales?

No. Both transactions are coded F, meaning shares were delivered or withheld for payment of exercise price or tax liability in connection with Restricted Stock Unit vesting, not discretionary open-market sales.

Which equity awards triggered the EnerSys (ENS) CEO’s share withholdings?

The forfeited shares relate to vesting of Restricted Stock Units granted to Shawn M. O'Connell on August 8, 2025 and August 9, 2024, according to the footnotes in the Form 4 filing.

Was a Rule 10b5-1 trading plan used for Shawn M. O'Connell’s EnerSys (ENS) Form 4 transactions?

The document-level Rule 10b5-1 checkbox is marked false, and the footnotes do not reference any trading plan, indicating these withholding transactions were not reported as executed under a 10b5-1 plan.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/11/2026 - 04:34 PM Accepted by SEC EDGAR 08/11/2026 - 04:33 PM 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^*

O'Connell Shawn M.

(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
X	Officer (give title below)		Other (specify below)
	President and CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/08/2026

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	08/08/2026		F		2,577(1)	D	$191.72	69,005	D
Common Stock	08/09/2026		F		822(2)	D	$191.72	68,183	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. Shares were forfeited in connection with the vesting of Restricted Stock Units granted to the reporting person on August 8, 2025.

2. Shares were forfeited in connection with the vesting of Restricted Stock Units granted to the reporting person on August 9, 2024.

	/s/ John Yarbrough by Power of Attorney	08/11/2026
	** 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)