Company · Ownership research

Hayward Holdings, Inc. HAYW

CIK 0001834622 · CUSIP 421298100

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 421298100 (HAYW), not CUSIP 421298900 (HAYW), CUSIP 421298950 (HAYW), and does not merge CUSIPs.

This page lists the top 20 of 126 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$123.97M 10,127,877 shares	0.02%	+1.62M(+19.10%)Added	SEC filing ↗ Nov 4, 2026	▾
02	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$43.22M 3,529,701 shares	0.00%	+54.00K(+1.60%)Added	SEC filing ↗ Nov 6, 2026	▾
03	REINHART PARTNERS, LLC. CIK 1080298 · View history	$38.61M 3,154,146 shares	0.94%	+3.15MNew	SEC filing ↗ Oct 9, 2026	▾
04	Bank of New York Mellon Corp CIK 1390777 · View history	$19.21M 1,569,506 shares	0.00%	-100.95K(-6.00%)Reduced	SEC filing ↗ Nov 5, 2026	▾
05	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC CIK 1644956 · View history	$17.86M 1,458,772 shares	0.06%	-91.09K(-5.90%)Reduced	SEC filing ↗ Nov 6, 2026	▾
06	PRINCIPAL FINANCIAL GROUP INC CIK 1126328 · View history	$12.32M 1,006,376 shares	0.01%	+43.50K(+4.50%)Added	SEC filing ↗ Nov 2, 2026	▾
07	Thrivent Financial for Lutherans CIK 314984 · View history	$4.74M 387,323 shares	0.01%	+20.80K(+5.70%)Added	SEC filing ↗ Nov 5, 2026	▾
08	Birch Hill Investment Advisors LLC CIK 1424177 · View history	$3.72M 304,169 shares	0.15%	0(0.00%)Unchanged	SEC filing ↗ Oct 16, 2026	▾
09	BARCLAYS PLC CIK 312069 · View history	$3.50M 286,116 shares	0.00%	-119.24K(-29.40%)Reduced	SEC filing ↗ Nov 6, 2026	▾
10	HARBOR CAPITAL ADVISORS, INC. CIK 1039128 · View history	$2.57M 210,039 shares	0.17%	+50.63K(+31.80%)Added	SEC filing ↗ Oct 22, 2026	▾
11	Oak Thistle LLC CIK 1755987 · View history	$2.37M 193,998 shares	0.22%	+194.00KNew	SEC filing ↗ Oct 21, 2026	▾
12	Granite Investment Partners, LLC CIK 1542266 · View history	$2.22M 181,562 shares	0.12%	-593.75K(-76.60%)Reduced	SEC filing ↗ Nov 4, 2026	▾
13	CITIGROUP INC CIK 831001 · View history	$2.16M 176,215 shares	0.00%	-79.70K(-31.10%)Reduced	SEC filing ↗ Nov 4, 2026	▾
14	DIVERSIFIED MANAGEMENT INC CIK 922372 · View history	$2.02M 165,368 shares	0.35%	+165.37KNew	SEC filing ↗ Oct 8, 2026	▾
15	Y-Intercept (Hong Kong) Ltd CIK 1772875 · View history	$1.74M 141,957 shares	0.04%	+141.96KNew	SEC filing ↗ Oct 16, 2026	▾
16	Creative Planning CIK 1540235 · View history	$1.71M 139,458 shares	0.00%	+85.45K(+158.20%)Added	SEC filing ↗ Nov 2, 2026	▾
17	Illinois Municipal Retirement Fund CIK 1541910 · View history	$1.34M 109,186 shares	0.01%	+3.53K(+3.30%)Added	SEC filing ↗ Nov 5, 2026	▾
18	Sendero Wealth Management, LLC CIK 1639375 · View history	$1.18M 96,761 shares	0.12%	+10.18K(+11.80%)Added	SEC filing ↗ Oct 14, 2026	▾
19	Louisiana State Employees Retirement System CIK 1537191 · View history	$1.11M 90,400 shares	0.02%	+2.90K(+3.30%)Added	SEC filing ↗ Oct 20, 2026	▾
20	State of New Jersey Common Pension Fund D CIK 1483066 · View history	$988.58K 80,766 shares	0.00%	-30.29K(-27.30%)Reduced	SEC filing ↗ Nov 5, 2026	▾

Showing 20 / 126 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

126

Cancelled or null records excluded

Disclosed shares

25,118,826

Not deduplicated across managers

Disclosed value

$307.34M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Hayward Holdings, Inc. · Q3 2026

Explore all 126 reporting institutions.

This page includes 20 of 126 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 126 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

akkru_institutional_holdings
{"action":"holders","cusip":"421298100","quarter":"2026Q3","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.