Latest Period
Q1 2026
Security Snapshot
Avidia Bancorp, Inc. - COMMON STOCK (AVBC) Institutional Ownership
CUSIP: 05369T100
13F Institutional Holders and Ownership History from Q3 2025 to Q1 2026
Institutions Reporting
65
Shares (Excl. Options)
6,452,630
Price
$19.67
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- Security type / class
- Equity / COMMON STOCK
- Symbol
- AVBC on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 6,452,630
- Total 13F value
- $126,538,383
- Portfolio coverage rank
- 0%
- Share change
- +672,653
- Value change
- +$14,189,529
- Number of holders
- 65
- Shares outstanding
- 19,971,311
- SEC-reported price per share
- $19.67
- Insider filing price
- $19.67
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- AVBC - Avidia Bancorp, Inc. - COMMON STOCK is tracked under CUSIP 05369T100.
- 65 institutions reported positions in Q1 2026.
- 2 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 52 to 65 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $97,947,817 to $126,538,383.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 65 institutions filings for Q1 2026.
Security key
05369T100
Latest holder period
Q1 2026
13F holders
65
13D/G owners
2
CIK / CUSIP context first
Open Q1 2026 holders
AVBC full holder history
Avidia Bancorp, Inc. SEC filings
Avidia Bancorp, Inc. company facts
Avidia Bancorp, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 05369T100:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
2
Security
AVBC
| 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 Mar 2026, 65 institutional investors reported holding 6,452,630 shares of Avidia Bancorp, Inc. - COMMON STOCK (AVBC). This represents 32% of the company’s total 19,971,311 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
29%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 6% | 1,197,758 | +2.7% | 0.02% | $23,560,000 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.1% | 821,976 | 0% | 0% | $16,168,268 |
| WELLINGTON MANAGEMENT GROUP LLP | 3.9% | 778,436 | -3.7% | 0% | $15,311,836 |
| FJ Capital Management LLC | 2.5% | 497,258 | 0% | 1.1% | $9,781,065 |
| MILLENNIUM MANAGEMENT LLC | 1.6% | 323,030 | +359% | 0% | $6,354,000 |
| BlackRock, Inc. | 1.4% | 276,514 | -0.84% | 0% | $5,439,031 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.1% | 219,905 | +12% | 0% | $4,327,353 |
| TWO SIGMA INVESTMENTS, LP | 1.1% | 211,122 | +34% | 0% | $4,152,770 |
| HENNESSY ADVISORS INC | 0.78% | 155,000 | +63% | 0.11% | $3,048,850 |
| ALLIANCEBERNSTEIN L.P. | 0.68% | 134,876 | 0% | 0% | $2,267,266 |
| MORGAN STANLEY | 0.62% | 123,925 | +41% | 0% | $2,437,605 |
| VANGUARD FIDUCIARY TRUST CO | 0.58% | 116,298 | 0% | 0% | $2,287,582 |
| MARSHALL WACE, LLP | 0.51% | 100,982 | +28% | 0% | $1,986,315 |
| GOLDMAN SACHS GROUP INC | 0.49% | 97,999 | +50% | 0% | $1,927,640 |
| Russell Investments Group, Ltd. | 0.39% | 76,897 | 0% | $1,512,567 | |
| FRANKLIN RESOURCES INC | 0.38% | 76,298 | -0.26% | 0% | $1,500,782 |
| COMMONWEALTH EQUITY SERVICES, LLC | 0.38% | 76,181 | +11% | 0% | $1,498,480 |
| Ancora Advisors LLC | 0.38% | 75,390 | 0.03% | $1,482,921 | |
| WHITE PINE CAPITAL LLC | 0.37% | 73,878 | +130% | 0.41% | $1,453,180 |
| STATE STREET CORP | 0.32% | 62,922 | +14% | 0% | $1,237,676 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.29% | 58,859 | 0% | $1,157,757 | |
| JPMORGAN CHASE & CO | 0.29% | 58,302 | +39% | 0% | $1,124,646 |
| IRONWOOD INVESTMENT MANAGEMENT LLC | 0.27% | 53,635 | -1% | 0.44% | $1,055,000 |
| Schonfeld Strategic Advisors LLC | 0.24% | 47,539 | 0.01% | $935,090 | |
| RENAISSANCE TECHNOLOGIES LLC | 0.22% | 43,300 | +255% | 0% | $851,711 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
3
Latest
Q1 2026
Rows shown
1-3 of 3