Comparable stake leader
BlackRock, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000866706.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
Ownership snapshot
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.
Quick read
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.
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
14%
from 13D/G
|
$1,119,035,945
3,977,098 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
6%
|
$439,858,124
1,563,273 shares
|
$0 | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.2%
|
$381,778,291
1,356,855 shares
|
$0 | 31 Mar 2026 |
| DIMENSIONAL FUND ADVISORS LP |
13D/G
13F
Company
|
4.4%
|
$179,405,648
1,136,054 shares
|
$0 | 31 Mar 2025 |
| Bryan H. Sayler |
3/4/5
CEO & PRESIDENT, Director
|
0.15%
|
$8,135,291
38,210 shares
|
-$2,152,260 | 03 Dec 2025 |
| David M. Schatz |
3/4/5
Sr. VP, Sec'y & Gen. Counsel
|
0.1%
|
$5,436,869
25,536 shares
|
-$563,674 | 03 Dec 2025 |
| Christopher L. Tucker |
3/4/5
Sr. Vice President & CFO
|
0.07%
|
$4,040,605
18,978 shares
|
-$1,100,750 | 03 Dec 2025 |
| Invesco Ltd. |
13F
Company
|
4.8%
|
$353,559,694
1,256,565 shares
|
— | 31 Mar 2026 |
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
Net insider flow leans to selling over the last 12 months. Net value: -$5,342,418.
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 24,197 | $0 | $5,342,418 | -$5,342,418 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Showing 1-14 of 14 reporting-owner rows connected to ESCO TECHNOLOGIES INC. Open a relationship link for the CIK-to-CIK filing trail.
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Victor L. Richey Jr. | Retired Director & Exec Chair | $30,076,850 | Mixed | 30 Jun 2023 | ||
| Leon J. Olivier | Director | $8,254,497 | Mixed | 04 Feb 2025 | ||
| Bryan H. Sayler | CEO & PRESIDENT, Director | $8,135,291 | -$2,152,260 | -21% | Mixed | 03 Dec 2025 |
| Robert J. Phillippy | Director | $6,604,031 | -$823,370 | -11% | Mixed | 17 Apr 2026 |
| Patrick M. Dewar | Director | $5,530,336 | Mixed | 17 Apr 2026 | ||
| David M. Schatz | Sr. VP, Sec'y & Gen. Counsel | $5,436,869 | -$563,674 | -9.4% | Mixed | 03 Dec 2025 |
| Vinod M. Khilnani | Director | $5,385,216 | -$702,364 | -12% | Mixed | 17 Apr 2026 |
| James M. Stolze | Director | $4,681,911 | Mixed | 06 Feb 2024 | ||
| Christopher L. Tucker | Sr. Vice President & CFO | $4,040,605 | -$1,100,750 | -21% | Mixed | 03 Dec 2025 |
| Gloria L. Valdez | Director | $3,046,715 | Mixed | 01 May 2026 | ||
| Larry W. Solley | Director | $2,437,161 | Mixed | 04 Jan 2022 | ||
| Janice L. Hess | Director | $1,897,307 | Mixed | 17 Apr 2026 | ||
| David A. Campbell | Director | $845,901 | Mixed | 17 Apr 2026 | ||
| Penelope M. Conner | Director | $673,717 | Mixed | 17 Apr 2026 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Gloria L. Valdez | ESE | Common Stock | Options Exercise | 5.66% | 197 | 3,677 | 01 May 2026 | Direct | ||
| Gloria L. Valdez | ESE | Restricted Share Units | Disposed to Issuer | -1.29% | -106 | 8,139 | 01 May 2026 | Direct | ||
| Gloria L. Valdez | ESE | Restricted Share Units | Options Exercise | -2.33% | -197 | 8,245 | 01 May 2026 | Direct | ||
| Gloria L. Valdez | ESE | Restricted Share Units | Award | 0.03% | 2.14 | 8,442 | 17 Apr 2026 | Direct | ||
| Robert J. Phillippy | ESE | Restricted Share Units | Award | 0.03% | 5.04 | 19,839 | 17 Apr 2026 | Direct | ||
| Vinod M. Khilnani | ESE | Restricted Share Units | Award | 0.03% | 0.2 | 772 | 17 Apr 2026 | Direct | ||
| Janice L. Hess | ESE | Restricted Share Units | Award | 0.03% | 0.25 | 987 | 17 Apr 2026 | Direct | ||
| Patrick M. Dewar | ESE | Restricted Share Units | Award | 0.03% | 6.03 | 23,732 | 17 Apr 2026 | Direct | ||
| Penelope M. Conner | ESE | Restricted Share Units | Award | 0.03% | 0.2 | 772 | 17 Apr 2026 | Direct | ||
| David A. Campbell | ESE | Restricted Share Units | Award | 0.03% | 0.92 | 3,630 | 17 Apr 2026 | Direct | ||
| Gloria L. Valdez | ESE | Common Stock | Options Exercise | 63.3% | 1,349 | 3,480 | 05 Feb 2026 | Direct | ||
| Gloria L. Valdez | ESE | Restricted Share Units | Disposed to Issuer | -0.25 | 8,440 | 05 Feb 2026 | Direct | |||
| Gloria L. Valdez | ESE | Restricted Share Units | Options Exercise | -13.8% | -1,349 | 8,440 | 05 Feb 2026 | Direct | ||
| Robert J. Phillippy | ESE | Common Stock | Options Exercise | 20.7% | 1,349 | 7,868 | 05 Feb 2026 | Direct | ||
| Robert J. Phillippy | ESE | Restricted Share Units | Disposed to Issuer | -0.25 | 19,833 | 05 Feb 2026 | Direct | |||
| Robert J. Phillippy | ESE | Restricted Share Units | Options Exercise | -6.37% | -1,349 | 19,834 | 05 Feb 2026 | Direct | ||
| Vinod M. Khilnani | ESE | Common Stock | Options Exercise | 6.59% | 1,349 | 21,817 | 05 Feb 2026 | Direct | ||
| Vinod M. Khilnani | ESE | Restricted Share Units | Disposed to Issuer | -0.03% | -0.25 | 772 | 05 Feb 2026 | Direct | ||
| Vinod M. Khilnani | ESE | Restricted Share Units | Options Exercise | -63.6% | -1,349 | 772 | 05 Feb 2026 | Direct | ||
| Janice L. Hess | ESE | Common Stock | Options Exercise | 24% | 1,349 | 6,972 | 05 Feb 2026 | Direct | ||
| Janice L. Hess | ESE | Restricted Share Units | Disposed to Issuer | -0.03% | -0.25 | 987 | 05 Feb 2026 | Direct | ||
| Janice L. Hess | ESE | Restricted Share Units | Options Exercise | -57.8% | -1,349 | 987 | 05 Feb 2026 | Direct | ||
| Penelope M. Conner | ESE | Common Stock | Options Exercise | 191.4% | 1,349 | 2,054 | 05 Feb 2026 | Direct | ||
| Penelope M. Conner | ESE | Restricted Share Units | Disposed to Issuer | -0.03% | -0.25 | 772 | 05 Feb 2026 | Direct | ||
| Penelope M. Conner | ESE | Restricted Share Units | Options Exercise | -63.6% | -1,349 | 772 | 05 Feb 2026 | Direct | ||
| Janice L. Hess | ESE | Restricted Share Units | Award | 10.1% | 215 | 2,336 | 02 Feb 2026 | Direct | ||
| Janice L. Hess | ESE | Restricted Share Units | Award | 57.2% | 772 | 2,121 | 02 Feb 2026 | Direct | ||
| Penelope M. Conner | ESE | Restricted Share Units | Award | 57.2% | 772 | 2,121 | 02 Feb 2026 | Direct | ||
| Gloria L. Valdez | ESE | Restricted Share Units | Award | 2.79% | 266 | 9,789 | 02 Feb 2026 | Direct | ||
| Gloria L. Valdez | ESE | Restricted Share Units | Award | 8.82% | 772 | 9,523 | 02 Feb 2026 | Direct | ||
| Patrick M. Dewar | ESE | Restricted Share Units | Award | 1.24% | 290 | 23,726 | 02 Feb 2026 | Direct | ||
| Patrick M. Dewar | ESE | Restricted Share Units | Award | 3.41% | 772 | 23,437 | 02 Feb 2026 | Direct | ||
| David A. Campbell | ESE | Restricted Share Units | Award | 6.28% | 215 | 3,629 | 02 Feb 2026 | Direct | ||
| David A. Campbell | ESE | Restricted Share Units | Award | 29.2% | 772 | 3,415 | 02 Feb 2026 | Direct | ||
| Robert J. Phillippy | ESE | Restricted Share Units | Award | 3.78% | 772 | 21,183 | 02 Feb 2026 | Direct | ||
| Vinod M. Khilnani | ESE | Restricted Share Units | Award | 57.2% | 772 | 2,121 | 02 Feb 2026 | Direct | ||
| Gloria L. Valdez | ESE | Restricted Share Units | Award | 0.04% | 3.2 | 8,751 | 16 Jan 2026 | Direct | ||
| Robert J. Phillippy | ESE | Restricted Share Units | Award | 0.04% | 7.47 | 20,411 | 16 Jan 2026 | Direct | ||
| Vinod M. Khilnani | ESE | Restricted Share Units | Award | 0.04% | 0.49 | 1,349 | 16 Jan 2026 | Direct | ||
| Janice L. Hess | ESE | Restricted Share Units | Award | 0.04% | 0.49 | 1,349 | 16 Jan 2026 | Direct | ||
| Patrick M. Dewar | ESE | Restricted Share Units | Award | 0.04% | 8.29 | 22,665 | 16 Jan 2026 | Direct | ||
| Penelope M. Conner | ESE | Restricted Share Units | Award | 0.04% | 0.49 | 1,349 | 16 Jan 2026 | Direct | ||
| David A. Campbell | ESE | Restricted Share Units | Award | 0.04% | 0.97 | 2,643 | 16 Jan 2026 | Direct | ||
| Bryan H. Sayler | ESE | Common Stock | Tax liability | -7.58% | -3,134 | 38,210 | 03 Dec 2025 | Direct | ||
| Christopher L. Tucker | ESE | Common Stock | Tax liability | -5.68% | -1,143 | 18,978 | 03 Dec 2025 | Direct | ||
| David M. Schatz | ESE | Common Stock | Tax liability | -2.28% | -597 | 25,536 | 03 Dec 2025 | Direct | ||
| Janice L. Hess | ESE | Common Stock | Options Exercise | 5,623 | 5,623 | 01 Dec 2025 | Direct | |||
| Janice L. Hess | ESE | Restricted Share Units | Disposed to Issuer | -59% | -1,938 | 1,349 | 01 Dec 2025 | Direct | ||
| Janice L. Hess | ESE | Restricted Share Units | Options Exercise | -63.1% | -5,623 | 3,287 | 01 Dec 2025 | Direct | ||
| Vinod M. Khilnani | ESE | Common Stock | Sale | -12.8% | $653,971 | $217.99 | -3,000 | 20,468 | 26 Nov 2025 | Direct |