Comparable stake leader
Zimmer Partners, LP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000108985.
Comparable stake leader
Zimmer Partners, LP
Disclosed value leader
Zimmer Partners, LP
Comparable rows
50/50
Latest evidence
21 Sep 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 |
|---|---|---|---|---|---|
| Zimmer Partners, LP |
13F
13D/G
Company
|
8.8%
from 13D/G
|
$43,519,230
1,419,877 shares
|
— | 30 Jun 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
7%
from 13D/G
|
$39,283,274
1,281,673 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.2%
|
$22,796,392
748,650 shares
|
$0 | 31 Mar 2026 |
| Jeffrey R. Hines |
3/4/5
Director
|
0.48%
|
$2,690,435
77,931 shares
|
— | 05 May 2025 |
| Joseph Thomas Hand |
3/4/5
President & CEO, Director
|
0.22%
|
$1,178,164
35,410 shares
|
-$215,382 | 17 Aug 2026 |
| Michael W. Gang |
3/4/5
Director
|
0.08%
|
$452,606
13,089 shares
|
— | 05 May 2025 |
| Matthew E. Poff |
3/4/5
Chief Financial Officer
|
0.06%
|
$325,907
9,532 shares
|
+$6,533 | 26 Aug 2026 |
| Alexandra C. Chiaruttini |
3/4/5
CAO & General Counsel
|
0.04%
|
$172,583
5,930 shares
|
+$5,200 | 16 Jul 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: -$153,843.
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 339 | 8,000 | $10,331 | $266,240 | -$255,909 |
| 3-6 | 2,420 | 0 | $69,898 | $0 | +$69,898 |
| 6-9 | 508 | 0 | $15,484 | $0 | +$15,484 |
| 9-12 | 567 | 0 | $16,685 | $0 | +$16,685 |
Reporting owners
Showing 1-20 of 27 reporting-owner rows connected to YORK WATER CO. Open a relationship link for the CIK-to-CIK filing trail.
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Jeffrey R. Hines | Director | $2,690,435 | Mixed | 05 May 2025 | ||
| Joseph Thomas Hand | President & CEO, Director | $1,178,164 | -$215,382 | -15% | Mixed | 17 Aug 2026 |
| George Hay III Kain Esq. | Director | $834,069 | Mixed | 01 May 2023 | ||
| Cynthia Dotzel | Director | $580,423 | Mixed | 01 May 2023 | ||
| Michael W. Gang | Director | $452,606 | Mixed | 05 May 2025 | ||
| Matthew E. Poff | Chief Financial Officer | $325,907 | +$6,533 | +2% | Filing P/S | 26 Aug 2026 |
| Robert P. Newcomer | Director | $242,741 | Mixed | 01 May 2023 | ||
| Mark A. Wheeler | Chief Operating Officer | $188,334 | Mixed | 01 May 2023 | ||
| Alexandra C. Chiaruttini | CAO & General Counsel | $172,583 | +$5,200 | +3.1% | Filing P/S | 16 Jul 2026 |
| George W. Hodges | Director | $156,555 | Mixed | 05 May 2025 | ||
| Jody L. Keller | Director | $149,728 | Mixed | 04 May 2026 | ||
| Steven R. Rasmussen | Director | $147,027 | Mixed | 04 May 2026 | ||
| Mark S. Snyder | VP- Engineering | $143,491 | +$1,300 | +0.91% | Filing P/S | 16 Jul 2026 |
| Ernest J. Waters | Director | $107,369 | Mixed | 06 May 2024 | ||
| Erin C. McGlaughlin | Director | $91,354 | Mixed | 04 May 2026 | ||
| Matthew J. Scarpato | Chief Operating Officer | $78,483 | +$30,535 | +64% | Filing P/S | 16 Jul 2026 |
| Vernon L. Bracey | VP- Customer Service | $77,546 | Filing P/S | 16 Jul 2024 | ||
| Natalee Colon | VP- Human Resources | $68,004 | Mixed | 17 Jan 2024 | ||
| Mark J. Hardman | VP- Technology | $38,058 | Mixed | 02 May 2022 | ||
| Wand Laura T. | Director | $28,288 | Mixed | 04 May 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Douglas S. Brossman | YORW | Common Stock | Purchase | 6.27% | $1,000 | $32.99 | 30.32 | 514 | 21 Sep 2026 | Direct |
| Matthew E. Poff | YORW | Common Stock | Purchase | 0.32% | $1,026 | $34.19 | 30 | 9,532 | 27 Aug 2026 | Direct |
| Douglas S. Brossman | YORW | Common Stock | Purchase | 6.64% | $1,000 | $33.19 | 30.13 | 484 | 20 Aug 2026 | Direct |
| Joseph Thomas Hand | YORW | Common Stock | Sale | -18.5% | $266,240 | $33.28 | -8,000 | 35,308 | 14 Aug 2026 | Direct |
| Douglas S. Brossman | YORW | Common Stock | Purchase | 7.66% | $1,000 | $30.99 | 32.26 | 454 | 20 Jul 2026 | Direct |
| Joseph Thomas Hand | YORW | Common Stock | Award | 0.32% | 112 | 35,308 | 16 Jul 2026 | Direct | ||
| Mark S. Snyder | YORW | Common Stock | Purchase | 0.23% | $325 | $29.11 | 11.17 | 4,930 | 16 Jul 2026 | Direct |
| Matthew J. Scarpato | YORW | Common Stock | Purchase | 4.32% | $3,250 | $29.11 | 112 | 2,697 | 16 Jul 2026 | Direct |
| Matthew E. Poff | YORW | Common Stock | Purchase | 0.05% | $130 | $29.11 | 4.47 | 9,502 | 16 Jul 2026 | Direct |
| Alexandra C. Chiaruttini | YORW | Common Stock | Purchase | 0.76% | $1,300 | $29.11 | 44.67 | 5,930 | 16 Jul 2026 | Direct |
| Suzanne M. Becker | YORW | Common Stock | Purchase | 13.6% | $1,300 | $29.11 | 44.67 | 374 | 16 Jul 2026 | Direct |
| Joseph Thomas Hand | YORW | Common Stock | Purchase | 0.06% | $738 | $29.53 | 25 | 42,866 | 19 Jun 2026 | Direct |
| Yanavitch William T. II | YORW | Common Stock | Purchase | 265.8% | $7,500 | $29.35 | 256 | 352 | 20 May 2026 | Direct |
| Matthew J. Scarpato | YORW | Common Stock | Purchase | 37.4% | $20,510 | $29.30 | 700 | 2,570 | 08 May 2026 | Direct |
| Mark S. Snyder | YORW | Common Stock | Award | 6.69% | 306 | 4,880 | 04 May 2026 | Direct | ||
| Suzanne M. Becker | YORW | Common Stock | Award | 174.5% | 208 | 327 | 04 May 2026 | Direct | ||
| Matthew J. Scarpato | YORW | Common Stock | Award | 74.1% | 796 | 1,870 | 04 May 2026 | Direct | ||
| Alexandra C. Chiaruttini | YORW | Common Stock | Award | 17.8% | 883 | 5,839 | 04 May 2026 | Direct | ||
| Matthew E. Poff | YORW | Common Stock | Award | 11.5% | 974 | 9,425 | 04 May 2026 | Direct | ||
| Joseph Thomas Hand | YORW | Common Stock | Award | 3.65% | 1,509 | 42,841 | 04 May 2026 | Direct | ||
| Robert F. Lambert | YORW | Common Stock | Award | 202.2% | 154 | 230 | 04 May 2026 | Direct | ||
| Douglas S. Brossman | YORW | Common Stock | Award | 58.3% | 154 | 418 | 04 May 2026 | Direct | ||
| Yanavitch William T. II | YORW | Common Stock | Award | 113% | 51 | 96 | 04 May 2026 | Direct | ||
| Steven R. Rasmussen | YORW | Common Stock | Award | 3.29% | 154 | 4,828 | 04 May 2026 | Direct | ||
| Erin C. McGlaughlin | YORW | Common Stock | Award | 5.41% | 154 | 3,000 | 04 May 2026 | Direct | ||
| Wand Laura T. | YORW | Common Stock | Award | 19.9% | 154 | 929 | 04 May 2026 | Direct | ||
| Paul R. Bonney | YORW | Common Stock | Award | 29.5% | 154 | 676 | 04 May 2026 | Direct | ||
| Jody L. Keller | YORW | Common Stock | Award | 3.23% | 154 | 4,917 | 04 May 2026 | Direct | ||
| Joseph Thomas Hand | YORW | Common Stock | Award | 0.29% | 103 | 35,308 | 16 Apr 2026 | Direct | ||
| Joseph Thomas Hand | YORW | Common Stock | Award | 0.29% | 103 | 35,308 | 16 Apr 2026 | Direct | ||
| Joseph Thomas Hand | YORW | Common Stock | Purchase | 2.61% | $29,982 | $28.50 | 1,052 | 41,332 | 16 Apr 2026 | Direct |
| Matthew E. Poff | YORW | Common Stock | Purchase | 2.11% | $4,988 | $28.50 | 175 | 8,451 | 16 Apr 2026 | Direct |
| Mark S. Snyder | YORW | Common Stock | Purchase | 0.23% | $300 | $29.13 | 10.3 | 4,574 | 16 Apr 2026 | Direct |
| Matthew J. Scarpato | YORW | Common Stock | Purchase | 10.6% | $3,000 | $29.13 | 103 | 1,074 | 16 Apr 2026 | Direct |
| Matthew E. Poff | YORW | Common Stock | Purchase | 0.05% | $120 | $29.13 | 4.12 | 8,276 | 16 Apr 2026 | Direct |
| Ashley M. Grimm | YORW | Common Stock | Purchase | 3.66% | $360 | $29.13 | 12.36 | 350 | 16 Apr 2026 | Direct |
| Suzanne M. Becker | YORW | Common Stock | Purchase | 52.8% | $1,200 | $29.13 | 41.2 | 119 | 16 Apr 2026 | Direct |
| Alexandra C. Chiaruttini | YORW | Common Stock | Purchase | 0.84% | $1,200 | $29.13 | 41.2 | 4,956 | 16 Apr 2026 | Direct |
| Joseph Thomas Hand | YORW | Common Stock | Purchase | 0.04% | $473 | $31.55 | 15 | 39,887 | 16 Mar 2026 | Direct |
| Mark S. Snyder | YORW | Common Stock | Purchase | 0.25% | $350 | $30.45 | 11.5 | 4,531 | 16 Jan 2026 | Direct |
| Matthew J. Scarpato | YORW | Common Stock | Purchase | 10.5% | $2,800 | $30.45 | 91.96 | 964 | 16 Jan 2026 | Direct |
| Matthew E. Poff | YORW | Common Stock | Purchase | 0.06% | $140 | $30.45 | 4.6 | 8,212 | 16 Jan 2026 | Direct |
| Joseph Thomas Hand | YORW | Common Stock | Purchase | 0.71% | $8,500 | $30.45 | 279 | 39,872 | 16 Jan 2026 | Direct |
| Ashley M. Grimm | YORW | Common Stock | Purchase | 4.3% | $420 | $30.45 | 13.8 | 335 | 16 Jan 2026 | Direct |
| Alexandra C. Chiaruttini | YORW | Common Stock | Purchase | 0.95% | $1,400 | $30.45 | 45.98 | 4,879 | 16 Jan 2026 | Direct |
| Suzanne M. Becker | YORW | Common Stock | Purchase | 146.2% | $1,400 | $30.45 | 45.98 | 77 | 16 Jan 2026 | Direct |
| Yanavitch William T. II | YORW | Common Stock | Purchase | $1,500 | $33.72 | 44.49 | 44 | 22 Dec 2025 | Direct | |
| Joseph Thomas Hand | YORW | Common Stock | Award | 0.76% | 297 | 39,304 | 08 Dec 2025 | Direct | ||
| Joseph Thomas Hand | YORW | Common Stock | Purchase | 0.08% | $963 | $32.11 | 30 | 39,007 | 13 Nov 2025 | Direct |
| Mark S. Snyder | YORW | Common Stock | Purchase | 0.25% | $325 | $28.83 | 11.27 | 4,487 | 16 Oct 2025 | Direct |