Avidia Bancorp, Inc. (NYSE: AVBC), an SEC filer in Savings Institutions, Not Federally Chartered, closed at $22.10, -0.3%, on 2026-08-28, with a market cap of $443M as of 2026-08-27, a return on equity of -1.1% and a net margin of -3.2%. Institutional ownership, earnings history and filed financials are on the tabs below.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | T. Rowe Price Investment Management, Inc. | 1,197,7581.2M | $24M | 5.97% | TRIM -28% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 821,976821,976 | $16M | 4.09% | NEW† |
| 3 | WELLINGTON MANAGEMENT GROUP LLP | 778,436778,436 | $15M | 3.88% | TRIM -4% |
| 4 | FJ Capital Management LLC | 497,258497,258 | $10M | 2.48% | — |
| 5 | MILLENNIUM MANAGEMENT LLC | 323,030323,030 | $6M | 1.61% | ADD 359% |
| 6 | BlackRock, Inc. | 276,514276,514 | $5M | 1.38% | — |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 219,905219,905 | $4M | 1.10% | ADD 12% |
| 8 | TWO SIGMA INVESTMENTS, LP | 211,122211,122 | $4M | 1.05% | ADD 34% |
| 9 | WHITE PINE CAPITAL LLC | 164,571164,571 | $3M | 0.82% | ADD 411% |
| 10 | HENNESSY ADVISORS INC | 155,000155,000 | $3M | 0.77% | ADD 63% |
† NEW this big is usually a rename.
Ranked by each filer’s own reported value, not shares.
1 holder — The filer reported no value for this line, so it carries no dollar figure and is left out of the percentage and value columns.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | +821,976 | $16M | OPEN |
| MILLENNIUM MANAGEMENT LLC | +252,577 | $5M | ADD |
| WHITE PINE CAPITAL LLC | +132,382 | $3M | ADD |
| VANGUARD FIDUCIARY TRUST CO | +116,298 | $2M | OPEN |
| Russell Investments Group, Ltd. | +76,897 | $2M | OPEN |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| VANGUARD GROUP INC | −993,638 | $20M | CLOSE |
| T. Rowe Price Investment Management, Inc. | −457,448 | $9M | TRIM |
| M3F, Inc. | −222,361 | $4M | CLOSE |
| TWO SIGMA ADVISERS, LP | −49,500 | $973,665 | CLOSE |
| MERCER GLOBAL ADVISORS INC /ADV | −34,824 | $684,988 | CLOSE |
Prior quarter split-rebased · 13Fs are long, US-listed only.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | — | — | — | 1.2M | 1.7M | 1.2M | $24M |
| VANGUARD CAPITAL MANAGEMENT LLC | — | — | — | — | — | 822K | $16M |
| WELLINGTON MANAGEMENT GROUP LLP | — | — | — | 896K | 808K | 778K | $15M |
| FJ Capital Management LLC | — | — | — | 497K | 497K | 497K | $10M |
| MILLENNIUM MANAGEMENT LLC | — | — | — | — | 70K | 323K | $6M |
| BlackRock, Inc. | — | — | — | 273K | 279K | 277K | $5M |
| GEODE CAPITAL MANAGEMENT, LLC | — | — | — | 193K | 197K | 220K | $4M |
| TWO SIGMA INVESTMENTS, LP | — | — | — | 243K | 158K | 211K | $4M |
| WHITE PINE CAPITAL LLC | — | — | — | — | 32K | 165K | $3M |
| HENNESSY ADVISORS INC | — | — | — | 40K | 95K | 155K | $3M |
Green = added, red = trimmed, grey = held; a dash is a quarter with no 13F on file — a gap, not an exit.
Breaks = no 13F that quarter.
Short interest has its own tab now — open SI →
SEC Form 13F · ~10,250 filers, 10y · long-only, US-listed, filed ≤45d after quarter-end.
| Holder | % of class | Type | As of | |
|---|---|---|---|---|
| BlackRock, Inc. | 5.7% | QII | 2026-06-30 | SEC → |
SEC Schedule 13D/G XML · group aggregate.
