| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Avidia Bank Employee Stock Ownership Plan Trust | 8% | $23,995,134 | 1,606,100 | Avidia Bank Employee Stock Ownership Plan Trust | 30 Sep 2025 | |||
| T. Rowe Price Investment Management, Inc. | 6.1% | $18,200,655 | 1,218,250 | T. Rowe Price Investment Management, Inc. | 30 Sep 2025 |
As of 31 Dec 2025, 52 institutional investors reported holding 5,827,215 shares of Avidia Bancorp, Inc. - COMMON STOCK (AVBC). This represents 29% of the company’s total 19,971,311 outstanding shares.
The largest institutional shareholders of Avidia Bancorp, Inc. - COMMON STOCK (AVBC) together control 27% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 5.8% | 1,166,125 | -4.3% | 0.01% | $19,603,000 |
| VANGUARD GROUP INC | 5% | 993,638 | +0.24% | 0% | $16,703,055 |
| WELLINGTON MANAGEMENT GROUP LLP | 4% | 808,335 | -9.7% | 0% | $13,588,111 |
| FJ Capital Management LLC | 2.5% | 497,258 | 0% | 0.92% | $8,358,907 |
| BlackRock, Inc. | 1.4% | 278,860 | +2.3% | 0% | $4,687,637 |
| M3F, Inc. | 1.1% | 222,361 | -32% | 1% | $3,738,000 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.99% | 196,855 | +1.8% | 0% | $3,310,616 |
| TWO SIGMA INVESTMENTS, LP | 0.79% | 158,122 | -35% | 0% | $2,658,031 |
| ALLIANCEBERNSTEIN L.P. | 0.68% | 134,876 | +43% | 0% | $2,267,266 |
| HENNESSY ADVISORS INC | 0.48% | 95,000 | +138% | 0.06% | $1,596,950 |
| MORGAN STANLEY | 0.44% | 88,136 | +849% | 0% | $1,481,566 |
| MARSHALL WACE, LLP | 0.4% | 78,997 | 0% | $1,327,938 | |
| FRANKLIN RESOURCES INC | 0.38% | 76,498 | -1.9% | 0% | $1,285,931 |
| MILLENNIUM MANAGEMENT LLC | 0.35% | 70,453 | 0% | $1,184,315 | |
| COMMONWEALTH EQUITY SERVICES, LLC | 0.34% | 68,844 | +29% | 0% | $1,157,270 |
| GOLDMAN SACHS GROUP INC | 0.33% | 65,174 | -19% | 0% | $1,095,575 |
| STATE STREET CORP | 0.28% | 55,122 | +103% | 0% | $926,601 |
| IRONWOOD INVESTMENT MANAGEMENT LLC | 0.27% | 54,186 | -0.26% | 0.38% | $910,867 |
| TWO SIGMA ADVISERS, LP | 0.25% | 49,500 | +74% | 0% | $832,095 |
| JPMORGAN CHASE & CO | 0.21% | 42,073 | +467378% | 0% | $707,247 |
| NORTHERN TRUST CORP | 0.21% | 41,850 | +9.1% | 0% | $703,499 |
| Polaris Capital Management, LLC | 0.2% | 40,000 | 0% | 0.06% | $672,400 |
| STILWELL VALUE LLC | 0.2% | 40,000 | 0% | 0.37% | $672,400 |
| BNP PARIBAS FINANCIAL MARKETS | 0.19% | 38,680 | 0% | 0% | $650,211 |
| MALTESE CAPITAL MANAGEMENT LLC | 0.19% | 38,250 | -20% | 0.11% | $642,982 |