Comparable stake leader
BlackRock, Inc.
SEC ownership of EnerSys
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001289308.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
02 Oct 2026
- Public ticker
- ENS on NYSE
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
02 Oct 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001289308
- Issuer location
- Reading, PA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of EnerSys (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
02 Oct 2026
13F
13D/G
3/4/5
Lead comparable stake: 12%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 12%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
12%
VANGUARD PORTFOLIO MANAGEMENT LLC
6.5%
VANGUARD CAPITAL MANAGEMENT LLC
5.2%
Paul J. Tufano
0.14%
Howard I. Hoffen
0.13%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
12%
from 13D/G
|
$1,221,455,176
5,223,912 shares
|
— | 30 Jun 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Portfolio Management
|
6.5%
from 13D/G
|
$548,573,987
2,346,138 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Capital Management
|
5.2%
from 13D/G
|
$385,424,913
1,648,383 shares
|
— | 30 Jun 2026 |
| Paul J. Tufano |
3/4/5
Director
|
0.14%
|
$9,597,154
52,292 shares
|
— | 02 Oct 2026 |
| Howard I. Hoffen |
3/4/5
Director
|
0.13%
|
$8,952,025
48,777 shares
|
— | 02 Oct 2026 |
| Ronald P. Vargo |
3/4/5
Director
|
0.1%
|
$6,710,619
36,564 shares
|
— | 02 Oct 2026 |
| Steven M. Fludder |
3/4/5
Director
|
0.06%
|
$3,963,035
21,594 shares
|
— | 02 Oct 2026 |
| Caroline Chan |
3/4/5
Director
|
0.05%
|
$3,068,310
16,718 shares
|
— | 02 Oct 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$990,410.
Buys
$24,675
Insiders: 1
Sells
$1,015,085
Insiders: 1
Net
-$990,410
Shares: -6,594
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 108
Shares: 6,702
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 108 | 0 | $24,675 | $0 | +$24,675 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 6,702 | $0 | $1,015,085 | -$1,015,085 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 23 reporting-owner rows connected to EnerSys. Open a relationship link for the CIK-to-CIK filing trail.
Rows
23
Largest Forms 3/4/5 holder
Shawn M. O'Connell
Net 12M change
-$990,410
Latest report
02 Oct 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Shawn M. O'Connell | President and CEO, Director | $18,593,413 | Median | 02 Oct 2026 | ||
| Andrea J. Funk | EVP and CFO | $12,027,718 | +$24,675 | +0.21% | Median | 02 Oct 2026 |
| Katsaros Arthur T. | Director | $11,088,528 | Mixed | 12 Jul 2024 | ||
| Michael J. Schmidtlein | Executive Vice President & CFO | $10,265,743 | Mixed | 25 Mar 2022 | ||
| Paul J. Tufano | Director | $9,597,154 | Median | 02 Oct 2026 | ||
| Howard I. Hoffen | Director | $8,952,025 | Median | 02 Oct 2026 | ||
| David M. Shaffer | Ceo | $7,937,273 | Mixed | 28 Mar 2025 | ||
| Ronald P. Vargo | Director | $6,710,619 | Median | 02 Oct 2026 | ||
| Keith D. Fisher | Pres. Network & Infrastructure | $5,240,011 | Median | 02 Oct 2026 | ||
| Chad C. Uplinger | President Industrial Mobility | $5,193,141 | -$1,015,085 | -16% | Median | 02 Oct 2026 |
| Mark E. Matthews | CTO and Pres. Precision Power | $4,667,569 | Median | 02 Oct 2026 | ||
| Robert Magnus | Director | $4,157,250 | Mixed | 28 Jun 2024 | ||
| Steven M. Fludder | Director | $3,963,035 | Median | 02 Oct 2026 | ||
| Hwan-Yoon Chung | Director | $3,644,448 | Mixed | 28 Jun 2024 | ||
| Caroline Chan | Director | $3,068,310 | Median | 02 Oct 2026 | ||
| Rudolph W. Wynter | Director | $2,943,879 | Median | 02 Oct 2026 | ||
| Kerry M. Kane | SVP, Corp Controller & PAO | $2,793,001 | Mixed | 30 Dec 2022 | ||
| Joern Tinnemeyer | Sr. VP & CTO | $2,543,413 | Mixed | 27 Dec 2024 | ||
| Andrew M. Zogby | Pres. Energy Systems Global | $2,122,718 | Mixed | 29 Sep 2023 | ||
| Tamara Morytko | Director | $2,079,666 | Median | 02 Oct 2026 |
Recent insider transactions for EnerSys
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Caroline Chan | ENS | Common Stock | Award | 0.15% | 24.45 | 16,718 | 02 Oct 2026 | Direct | ||
| Lauren Knausenberger | ENS | Common Stock | Award | 0.15% | 9.69 | 6,624 | 02 Oct 2026 | Direct | ||
| David C. Habiger | ENS | Common Stock | Award | 0.15% | 10.6 | 7,262 | 02 Oct 2026 | Direct | ||
| Tamara Morytko | ENS | Common Stock | Award | 0.15% | 16.58 | 11,332 | 02 Oct 2026 | Direct | ||
| Rudolph W. Wynter | ENS | Common Stock | Award | 0.15% | 23.46 | 16,040 | 02 Oct 2026 | Direct | ||
| Steven M. Fludder | ENS | Common Stock | Award | 0.15% | 31.58 | 21,594 | 02 Oct 2026 | Direct | ||
| Howard I. Hoffen | ENS | Common Stock | Award | 0.15% | 71.33 | 48,777 | 02 Oct 2026 | Direct | ||
| Ronald P. Vargo | ENS | Common Stock | Award | 0.15% | 53.47 | 36,564 | 02 Oct 2026 | Direct | ||
| Paul J. Tufano | ENS | Common Stock | Award | 0.15% | 76.48 | 52,292 | 02 Oct 2026 | Direct | ||
| Chad C. Uplinger | ENS | Common Stock | Award | 0.08% | 22.12 | 28,296 | 02 Oct 2026 | Direct | ||
| Mark E. Matthews | ENS | Common Stock | Award | 0.08% | 21.41 | 25,432 | 02 Oct 2026 | Direct | ||
| Keith D. Fisher | ENS | Common Stock | Award | 0.13% | 37.5 | 28,552 | 02 Oct 2026 | Direct | ||
| Andrea J. Funk | ENS | Common Stock | Award | 0.1% | 65.01 | 65,536 | 02 Oct 2026 | Direct | ||
| Shawn M. O'Connell | ENS | Common Stock | Award | 0.1% | 98.83 | 101,311 | 02 Oct 2026 | Direct | ||
| Chad C. Uplinger | ENS | Common Stock | Award | 29.2% | 6,392 | 28,274 | 14 Aug 2026 | Direct | ||
| Mark E. Matthews | ENS | Common Stock | Award | 33.6% | 6,392 | 25,411 | 14 Aug 2026 | Direct | ||
| Keith D. Fisher | ENS | Common Stock | Award | 28.9% | 6,392 | 28,514 | 14 Aug 2026 | Direct | ||
| Andrea J. Funk | ENS | Common Stock | Award | 24.3% | 12,782 | 65,471 | 14 Aug 2026 | Direct | ||
| Shawn M. O'Connell | ENS | Common Stock | Award | 51.5% | 34,414 | 101,212 | 14 Aug 2026 | Direct | ||
| Caroline Chan | ENS | Common Stock | Award | 6.25% | 982 | 16,694 | 14 Aug 2026 | Direct | ||
| Steven M. Fludder | ENS | Common Stock | Award | 4.77% | 982 | 21,562 | 14 Aug 2026 | Direct | ||
| David C. Habiger | ENS | Common Stock | Award | 15.7% | 982 | 7,251 | 14 Aug 2026 | Direct | ||
| Howard I. Hoffen | ENS | Common Stock | Award | 2.06% | 982 | 48,706 | 14 Aug 2026 | Direct | ||
| Lauren Knausenberger | ENS | Common Stock | Award | 17.4% | 982 | 6,614 | 14 Aug 2026 | Direct | ||
| Tamara Morytko | ENS | Common Stock | Award | 9.5% | 982 | 11,315 | 14 Aug 2026 | Direct | ||
| Ronald P. Vargo | ENS | Common Stock | Award | 2.76% | 982 | 36,511 | 14 Aug 2026 | Direct | ||
| Rudolph W. Wynter | ENS | Common Stock | Award | 6.53% | 982 | 16,017 | 14 Aug 2026 | Direct | ||
| Paul J. Tufano | ENS | Common Stock | Award | 2.81% | 1,428 | 52,216 | 14 Aug 2026 | Direct | ||
| Chad C. Uplinger | ENS | Common Stock | Tax liability | -1.96% | -437 | 21,882 | 12 Aug 2026 | Direct | ||
| Mark E. Matthews | ENS | Common Stock | Tax liability | -2.72% | -531 | 19,019 | 12 Aug 2026 | Direct | ||
| Andrea J. Funk | ENS | Common Stock | Tax liability | -1.86% | -996 | 52,689 | 12 Aug 2026 | Direct | ||
| Shawn M. O'Connell | ENS | Common Stock | Tax liability | -1.18% | -795 | 66,798 | 12 Aug 2026 | Direct | ||
| Chad C. Uplinger | ENS | Common Stock | Tax liability | -1.28% | -289 | 22,319 | 11 Aug 2026 | Direct | ||
| Mark E. Matthews | ENS | Common Stock | Tax liability | -2.06% | -411 | 19,550 | 11 Aug 2026 | Direct | ||
| Andrea J. Funk | ENS | Common Stock | Tax liability | -1.36% | -739 | 53,685 | 11 Aug 2026 | Direct | ||
| Shawn M. O'Connell | ENS | Common Stock | Tax liability | -0.87% | -590 | 67,593 | 11 Aug 2026 | Direct | ||
| Shawn M. O'Connell | ENS | Common Stock | Tax liability | -1.19% | -822 | 68,183 | 09 Aug 2026 | Direct | ||
| Chad C. Uplinger | ENS | Common Stock | Tax liability | -2.53% | -587 | 22,608 | 09 Aug 2026 | Direct | ||
| Mark E. Matthews | ENS | Common Stock | Tax liability | -2.25% | -460 | 19,961 | 09 Aug 2026 | Direct | ||
| Andrea J. Funk | ENS | Common Stock | Tax liability | -1.52% | -841 | 54,424 | 09 Aug 2026 | Direct | ||
| Shawn M. O'Connell | ENS | Common Stock | Tax liability | -3.6% | -2,577 | 69,005 | 08 Aug 2026 | Direct | ||
| Chad C. Uplinger | ENS | Common Stock | Tax liability | -2.41% | -573 | 23,195 | 08 Aug 2026 | Direct | ||
| Mark E. Matthews | ENS | Common Stock | Tax liability | -2.85% | -598 | 20,421 | 08 Aug 2026 | Direct | ||
| Keith D. Fisher | ENS | Common Stock | Tax liability | -2.52% | -573 | 22,122 | 08 Aug 2026 | Direct | ||
| Andrea J. Funk | ENS | Common Stock | Tax liability | -2.08% | -1,172 | 55,265 | 08 Aug 2026 | Direct | ||
| Lauren Knausenberger | ENS | Common Stock | Award | 2.96% | 162 | 5,632 | 16 Jul 2026 | Direct | ||
| Rudolph W. Wynter | ENS | Common Stock | Award | 1.33% | 198 | 15,035 | 16 Jul 2026 | Direct | ||
| Tamara Morytko | ENS | Common Stock | Award | 1.68% | 171 | 10,333 | 16 Jul 2026 | Direct | ||
| David C. Habiger | ENS | Common Stock | Award | 2.8% | 171 | 6,269 | 16 Jul 2026 | Direct | ||
| Paul J. Tufano | ENS | Common Stock | Award | 0.53% | 268 | 50,788 | 16 Jul 2026 | Direct |
* marks a reported price that did not pass the local price check.