Company · Ownership research

Avidia Bancorp, Inc. AVBC

CIK 0002058758 · CUSIP 05369T100

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 05369T100 (AVBC), not CUSIP 123456789 (AVBC), and does not merge CUSIPs.

This page lists the top 20 of 50 rows by value; the complete set is available through the API.

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	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$9.30M 430,464 shares	0.00%	-12.16K(-2.70%)Reduced	SEC filing ↗ Nov 6, 2026	▾
02	STATE STREET CORP CIK 93751 · View history	$7.28M 336,910 shares	0.00%	+85.61K(+34.10%)Added	SEC filing ↗ Nov 12, 2026	▾
03	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$4.37M 202,100 shares	0.01%	+85.29K(+73.00%)Added	SEC filing ↗ Nov 12, 2026	▾
04	HENNESSY ADVISORS INC CIK 1145255 · View history	$3.39M 157,000 shares	0.13%	0(0.00%)Unchanged	SEC filing ↗ Oct 28, 2026	▾
05	PANAGORA ASSET MANAGEMENT INC CIK 883677 · View history	$3.04M 140,748 shares	0.01%	+96.05K(+214.90%)Added	SEC filing ↗ Nov 12, 2026	▾
06	Russell Investments Group, Ltd. CIK 1692234 · View history	$1.95M 90,431 shares	0.00%	+24.35K(+36.90%)Added	SEC filing ↗ Nov 6, 2026	▾
07	COMMONWEALTH EQUITY SERVICES, LLC CIK 312272 · View history	$1.88M 87,239 shares	0.00%	-5.25K(-5.70%)Reduced	SEC filing ↗ Nov 2, 2026	▾
08	WHITE PINE CAPITAL LLC CIK 1137429 · View history	$1.86M 86,223 shares	0.44%	-482(-0.60%)Reduced	SEC filing ↗ Nov 9, 2026	▾
09	JPMORGAN CHASE & CO CIK 19617 · View history	$1.56M 72,525 shares	0.00%	+34.68K(+91.60%)Added	SEC filing ↗ Nov 12, 2026	▾
10	Polaris Capital Management, LLC CIK 1316926 · View history	$1.35M 62,600 shares	0.14%	0(0.00%)Unchanged	SEC filing ↗ Oct 21, 2026	▾
11	IRONWOOD INVESTMENT MANAGEMENT LLC CIK 1127761 · View history	$1.16M 53,864 shares	0.43%	+222(+0.40%)Added	SEC filing ↗ Nov 12, 2026	▾
12	FRANKLIN RESOURCES INC CIK 38777 · View history	$1.06M 46,593 shares	0.00%	-21.90K(-32.00%)Reduced	SEC filing ↗ Nov 12, 2026	▾
13	Bank of New York Mellon Corp CIK 1390777 · View history	$1.02M 47,414 shares	0.00%	+1.48K(+3.20%)Added	SEC filing ↗ Nov 5, 2026	▾
14	BNP PARIBAS FINANCIAL MARKETS CIK 1166588 · View history	$935.41K 43,306 shares	0.00%	-3.93K(-8.30%)Reduced	SEC filing ↗ Nov 12, 2026	▾
15	STRS OHIO CIK 820478 · View history	$924.48K 42,800 shares	0.00%	+39.20K(+1,088.90%)Added	SEC filing ↗ Oct 30, 2026	▾
16	Nuveen, LLC CIK 1871926 · View history	$795.55K 36,831 shares	0.00%	+640(+1.80%)Added	SEC filing ↗ Nov 10, 2026	▾
17	Arbiter Partners Capital Management LLC CIK 1513193 · View history	$708.48K 32,800 shares	0.31%	0(0.00%)Unchanged	SEC filing ↗ Nov 12, 2026	▾
18	RAYMOND JAMES FINANCIAL INC CIK 720005 · View history	$686.88K 31,800 shares	0.00%	+31.80KNew	SEC filing ↗ Nov 12, 2026	▾
19	SEI INVESTMENTS CO CIK 350894 · View history	$598.45K 27,706 shares	0.00%	+15.73K(+131.40%)Added	SEC filing ↗ Nov 10, 2026	▾
20	Oppenheimer & Close, LLC CIK 1591377 · View history	$572.44K 26,502 shares	0.35%	0(0.00%)Unchanged	SEC filing ↗ Nov 9, 2026	▾

Showing 20 / 50 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

2,265,476

Not deduplicated across managers

Disclosed value

$48.98M

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.

Avidia Bancorp, Inc. · Q3 2026

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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.