EnerSys (ENS) has 20 known insider and institutional holders on record. The largest holder is KATSAROS ARTHUR T with 99,516 shares. Other notable holders include Shaffer David M and O'Connell Shawn M..
Over the last 12 months, insiders have made 112 transactions in ENS stock — 92 buys (valued at $15.05M) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
ENS Insider Ownership
Top Holder
KATSAROS ARTHUR T
99,516 shares
Buys (12 mo)
92
$15.05M value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Katsaros Arthur T |
Director |
99,516 |
2024-07-16 |
|
| 2 |
Shaffer David M |
CEO |
77,103 |
2025-04-01 |
|
| 3 |
O'connell Shawn M. |
President and CEO |
71,481 |
2026-03-31 |
|
| 4 |
Funk Andrea J. |
EVP and CFO |
58,277 |
2026-03-31 |
|
| 5 |
Tufano Paul J |
Director |
50,163 |
2026-03-31 |
|
| 6 |
Hoffen Howard I |
Director |
47,658 |
2026-03-31 |
|
| 7 |
Magnus Robert |
Director |
45,532 |
2024-07-02 |
|
| 8 |
Chung Hwan-yoon |
Director |
39,926 |
2024-07-02 |
|
| 9 |
Vargo Ronald P |
Director |
35,468 |
2026-03-31 |
|
| 10 |
Kane Kerry M |
SVP, Corp Controller & Pao |
28,716 |
2023-01-03 |
|
| 11 |
Tinnemeyer Joern |
Sr. VP & CTO |
25,401 |
2024-12-31 |
|
| 12 |
Uplinger Chad C |
President Motive Power Global |
23,737 |
2026-03-31 |
|
| 13 |
Fisher Keith D. |
Pres. Energy Systems Global |
22,975 |
2026-03-31 |
|
| 14 |
Zogby Andrew M. |
Pres. Energy Systems Global |
21,810 |
2023-10-03 |
|
| 15 |
Matthews Mark E. |
CTO and President Specialty |
20,989 |
2026-03-31 |
|
| 16 |
Fludder Steven M |
Director |
20,547 |
2026-03-31 |
|
| 17 |
Chan Caroline |
Director |
15,692 |
2026-03-31 |
|
| 18 |
Wynter Rudolph W. |
Director |
14,613 |
2026-03-31 |
|
| 19 |
Morytko Tamara |
Director |
9,973 |
2026-03-31 |
|
| 20 |
Habiger David C |
Director |
5,917 |
2026-03-31 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-27 |
Fisher Keith D. |
Pres. Energy Systems Global |
RSU Award |
6 |
- |
- |
| 2026-03-27 |
Knausenberger Lauren |
Director |
RSU Award |
6 |
- |
- |
| 2026-03-27 |
Matthews Mark E. |
CTO and President Specialty |
RSU Award |
2 |
- |
- |
| 2026-03-27 |
Uplinger Chad C |
President Motive Power Global |
RSU Award |
2 |
- |
- |
| 2026-03-27 |
Wynter Rudolph W. |
Director |
RSU Award |
15 |
- |
- |
| 2026-03-27 |
Chan Caroline |
Director |
RSU Award |
24 |
- |
- |
| 2026-03-27 |
Morytko Tamara |
Director |
RSU Award |
10 |
- |
- |
| 2026-03-27 |
O'connell Shawn M. |
President and CEO |
RSU Award |
3 |
- |
- |
| 2026-03-27 |
Funk Andrea J. |
EVP and CFO |
RSU Award |
4 |
- |
- |
| 2026-03-27 |
Fludder Steven M |
Director |
RSU Award |
24 |
- |
- |
| 2026-03-27 |
Vargo Ronald P |
Director |
RSU Award |
39 |
- |
- |
| 2026-03-27 |
Habiger David C |
Director |
RSU Award |
6 |
- |
- |
| 2026-03-27 |
Hoffen Howard I |
Director |
RSU Award |
68 |
- |
- |
| 2026-03-27 |
Tufano Paul J |
Director |
RSU Award |
52 |
- |
- |
| 2026-02-07 |
Fisher Keith D. |
Pres. Energy Systems Global |
Tax Withholding of RSU |
2,781 |
$172.22 |
$478.94K |
| 2026-01-15 |
Knausenberger Lauren |
Director |
RSU Award |
158 |
$167.14 |
$26.41K |
| 2026-01-15 |
Wynter Rudolph W. |
Director |
RSU Award |
193 |
$167.14 |
$32.26K |
| 2026-01-15 |
Morytko Tamara |
Director |
RSU Award |
167 |
$167.14 |
$27.91K |
| 2026-01-15 |
Vargo Ronald P |
Director |
RSU Award |
40 |
$167.14 |
$6.69K |
| 2026-01-15 |
Habiger David C |
Director |
RSU Award |
167 |
$167.14 |
$27.91K |
| 2026-01-15 |
Tufano Paul J |
Director |
RSU Award |
261 |
$167.14 |
$43.62K |
| 2025-12-26 |
Fisher Keith D. |
Pres. Energy Systems Global |
RSU Award |
23 |
- |
- |
| 2025-12-26 |
Knausenberger Lauren |
Director |
RSU Award |
7 |
- |
- |
| 2025-12-26 |
Matthews Mark E. |
CTO and President Specialty |
RSU Award |
2 |
- |
- |
| 2025-12-26 |
Uplinger Chad C |
President Motive Power Global |
RSU Award |
2 |
- |
- |
