York Water Co

YORW

Exchange: Nasdaq
Industry: Water Supply
SEC CIK: 0000108985

SEC filings (opens in a new tab)

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.

Q4 2025 vs. Q3 2025

How the institutions holding York Water Co changed between Q3 2025 and Q4 2025.

All holders in Q4 2025 All holders in Q3 2025

13F holders of YORW: Q3 2025 compared with Q4 2025
Measure	Q3 2025	Of which not filed for Q4 2025	Q4 2025	Change
Holders	161	1	161	+1
Shares	8.28M	8.44K	8.81M	+540.3K (+6.5%)
Value	$251.9M	$256.6K	$280.6M	+$29.0M (+11.5%)

1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (23)

Institutions that held York Water Co at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to YORW in Q4 2025
Institution	Shares	Value	% of portfolio
John G Ullman & Associates Inc	37,050	$1.18M	0.16%
HRT Financial LP	19,751	$628.0K	0.00%
Inceptionr LLC	12,398	$394.8K	0.11%
Odyssean, LLC	12,300	$391.6K	0.28%
Cerity Partners LLC	8,753	$278.7K	0.00%
Perigon Wealth Management, LLC	8,300	$264.3K	0.00%
Cetera Investment Advisers	8,235	$262.2K	0.00%
Evergreen Capital Management LLC	7,885	$252.9K	0.01%
Intech Investment Management LLC	7,122	$226.8K	0.00%
Skopos Labs, Inc.	6,813	$221.8K	0.01%
Independent Advisor Alliance	6,761	$215.3K	0.01%
SEI Investments Co	6,634	$211.2K	0.00%
Kestra Advisory Services, LLC	2,118	$67.5K	0.00%
Ancora Advisors, LLC	600	$19.1K	0.00%
UBS Asset Management Americas Inc	437	$13.9K	0.00%
Pinnacle Wealth Planning Services, Inc.	218	$6.94K	0.00%
Optiver Holding B.V.	170	$5.41K	0.00%
Los Angeles Capital Management LLC	128	$3.95K	0.00%
WealthCollab, LLC	69	$2.20K	0.00%
Godfrey Financial Associates, Inc.	30	$955	0.00%
Transamerica Financial Advisors, Inc.	21	$673	0.00%
Bare Financial Services, Inc	15	$478	0.00%
Legacy Wealth Managment, LLC	8	$255	0.00%

Sold out (22)

Institutions that held York Water Co at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of YORW in Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Marshall Wace, LLP	28,596	$869.9K
Squarepoint Ops LLC	24,914	$757.9K
Penn Mutual Asset Management, LLC	21,000	$638.8K
Jane Street Group, LLC	16,156	$491.5K
Citadel Advisors LLC	13,872	$422.0K
Trexquant Investment LP	13,609	$414.0K
Y-Intercept (Hong Kong) Ltd	13,120	$399.1K
Gsa Capital Partners LLP	13,047	$397.0K
Manchester Capital Management LLC	12,968	$394.5K
Atom Investors LP	8,606	$261.8K
D. E. Shaw & Co., Inc.	7,731	$235.2K
Quantbot Technologies LP	5,769	$175.5K
Wealthspire Advisors, LLC	2,673	$81.3K
GPS Wealth Strategies Group, LLC	2,447	$74.4K
Advisory Services Network, LLC	1,018	$31.0K
Crowley Wealth Management, Inc.	1,000	$30.4K
Simplex Trading, LLC	561	$17.0K
Northwestern Mutual Wealth Management Co	529	$16.1K
Rise Advisors, LLC	497	$15.1K
Rockefeller Capital Management L.P.	37	$1.13K
Principal Securities, Inc.	10	$304
Tortoise Investment Management, LLC	1	$30

Not filed for Q4 2025 yet (1)

Institutions that held York Water Co at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding YORW in Q3 2025 that haven't filed for Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Gitterman Wealth Management, LLC	8,437	$256.6K