Skip to main content
Livermore
Livermore
ZHEN

York Water Co

YORW
Exchange
Nasdaq
Industry
Water Supply
SEC CIK
0000108985

In the last 90 days, York Water Co insiders filed 9 open-market purchases and 1 sale; 168 institutions reported holding it in 13F filings for Q2 2026, worth $319.9M in total; no superinvestor holds it.

Holders of 5% or more of YORW

Holders whose latest Schedule 13D or 13G filing reports 5% or more of York Water Co, largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of YORW
HolderLatest formStakeChangeFirst filedLatest filingFiling
BlackRock, Inc.13G/A11.80%1.70M shares+1.10 ppfrom 10.70%Feb 5, 20253 filingsJul 17, 2025SEC
Zimmer Partners, LP13G5.20%746.9K sharesNewFeb 14, 20251 filingFeb 14, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

6 Schedule 13D and 13G filings on York Water Co, newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on YORW
Filed (ET)FilerFormStakeChangeEvent dateFiling
Mar 27, 20262:14 PM ETVanguard Group Inc13G/A0.00%0 shares−7.57 ppfrom 7.57%Below 5%Mar 13, 2026SEC
Jul 29, 20252:54 PM ETVanguard Group Inc13G/A7.57%1.09M shares–Jun 30, 2025SEC
Jul 17, 20258:12 PM ETBlackRock, Inc.13G/A11.80%1.70M shares+1.10 ppfrom 10.70%Jun 30, 2025SEC
Apr 17, 20259:35 AM ETBlackRock, Inc.13G/A10.70%1.53M shares−1.70 ppfrom 12.40%Mar 31, 2025SEC
Feb 14, 20259:26 AM ETZimmer Partners, LPand 3 others13G5.20%746.9K sharesNewDec 31, 2024SEC
Feb 5, 20251:23 PM ETBlackRock, Inc.13G/A12.40%1.78M shares–Dec 31, 2024SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell York Water Co shares.

No Form 144 notices for York Water Co are on file.