S-8 S-8 EX-FILING FEES 0002058758 Avidia Bancorp, Inc. Fees to be Paid Fees to be Paid 0002058758 2025-08-01 2025-08-01 0002058758 1 2025-08-01 2025-08-01 0002058758 2 2025-08-01 2025-08-01 iso4217:USD xbrli:pure xbrli:shares

Calculation of Filing Fee Tables

S-8

Avidia Bancorp, Inc.

Table 1: Newly Registered Securities

Security Type

Security Class Title

Fee Calculation Rule

Amount Registered

Proposed Maximum Offering Price Per Unit

Maximum Aggregate Offering Price

Fee Rate

Amount of Registration Fee

1 Equity Common stock, $0.01 par value per share Other 4,920,964 $ 10.00 $ 49,209,640.00 0.0001531 $ 7,534.00
2 Other Participation Interests Other 0.0001531 $ 0.00

Total Offering Amounts:

$ 49,209,640.00

$ 7,534.00

Total Fee Offsets:

$ 0.00

Net Fee Due:

$ 7,534.00

Offering Note

1

This registration statement relates to 4,920,964 shares of common stock of Avidia Bancorp, Inc. that may be purchased with employee contributions to the 401(k) Plan as Adopted by Avidia Bank (the "Plan"). The Proposed Maximum Offering Price per unit is determined pursuant 17 C.F.R. Sections 230.457(h)(1) and 230.457(c) of the Securities Act.

2

Pursuant to 17 C.F.R. Section 230.416(c) under the Securities Act of 1933, as amended (the "Securities Act"), this registration statement also covers an indeterminate amount of participation interests to be offered or sold pursuant to the Plan. Pursuant to 17 C.F.R. Section 230.457(h)(2) of the Securities Act, no registration fee is required to be paid.