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Equibles

AVBC

Avidia Bancorp, Inc.

Company with tickers: AVBC

CIK
2058758
CUSIP
05369T100
Shares Outstanding
18,570,531
13F Activity (30d)
55 filings 53 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 66
Total Value: $126,924,375
Total Shares: 6,452,690

Institutional Ownership Trend

3 quarters

Holder Concentration

Across 66 13F filers · Δ vs Dec 31, 2025
Top Holder
18.6%
Sep 2025 → Mar 2026 · range 18.6% – 21.5%
−1.4 pts
Top 5
56.1%
Sep 2025 → Mar 2026 · range 56.1% – 69.4%
−8.2 pts
Top 10
71.5%
Sep 2025 → Mar 2026 · range 71.5% – 85.6%
−6.6 pts
HHI
815
Sep 2025 → Mar 2026 · range 815 – 1,200
Broadly held −224

Quarterly Activity

vs Dec 31, 2025
New
20
Increased
20
Decreased
11
Sold Out
7
Unchanged
15
Holder count: +13
Institutional value: +29.6%
Shares held: +10.7%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega MILLENNIUM MANAGEMENT LLC +252,577 323,030
Mid HENNESSY ADVISORS INC +60,000 155,000
Mega TWO SIGMA INVESTMENTS, LP +53,000 211,122
Small WHITE PINE CAPITAL LLC +41,689 73,878
Mega MORGAN STANLEY +35,789 123,925

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega WELLINGTON MANAGEMENT GROUP LLP −29,899 778,436
Small MALTESE CAPITAL MANAGEMENT LLC −24,750 13,500
Small State of Wyoming −9,539 8,071
Mega CITIGROUP INC −7,978 14,505
Mega UBS Group AG −5,286 20,296

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 821,976 $16,168,267
Mega VANGUARD FIDUCIARY TRUST CO 116,298 $2,287,581
Large Russell Investments Group, Ltd. 76,897 $1,512,562
Mid Ancora Advisors LLC 75,390 $1,482,921
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP 58,859 $1,157,756

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 993,638 $16,703,053
Small M3F, Inc. 222,361 $3,737,888
Large TWO SIGMA ADVISERS, LP 49,500 $832,095
Large MERCER GLOBAL ADVISORS INC /ADV 34,824 $585,391
Mid OCCUDO QUANTITATIVE STRATEGIES LP 13,492 $226,800
Filter: New 20 Increased 20 Reduced 11 Sold out 7 Unchanged 15
Showing 66 of 66
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega T. Rowe Price Investment Management, Inc. $23,559,899 18.56% 1,197,758
Mega VANGUARD CAPITAL MANAGEMENT LLC $16,168,267 12.74% 821,976
Mega WELLINGTON MANAGEMENT GROUP LLP $15,311,836 12.06% 778,436
Small FJ Capital Management LLC $9,781,064 7.71% 497,258
Mega MILLENNIUM MANAGEMENT LLC $6,354,000 5.01% 323,030
Mega BlackRock, Inc. $5,439,029 4.29% 276,514
Mega GEODE CAPITAL MANAGEMENT, LLC $4,325,530 3.41% 219,905
Mega TWO SIGMA INVESTMENTS, LP $4,152,769 3.27% 211,122
Mid HENNESSY ADVISORS INC $3,048,850 2.40% 155,000
Mega ALLIANCEBERNSTEIN L.P. $2,653,010 2.09% 134,876
Mega MORGAN STANLEY $2,437,603 1.92% 123,925
Mega VANGUARD FIDUCIARY TRUST CO Bank $2,287,581 1.80% 116,298
Large MARSHALL WACE, LLP $1,986,315 1.56% 100,982
Mega GOLDMAN SACHS GROUP INC $1,927,640 1.52% 97,999
Large Russell Investments Group, Ltd. $1,512,562 1.19% 76,897
Mega FRANKLIN RESOURCES INC $1,500,781 1.18% 76,298
Large COMMONWEALTH EQUITY SERVICES, LLC $1,498,480 1.18% 76,181
Mid Ancora Advisors LLC $1,482,921 1.17% 75,390
Small WHITE PINE CAPITAL LLC $1,453,180 1.14% 73,878
Mega STATE STREET CORP $1,237,675 0.98% 62,922
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,157,756 0.91% 58,859
Mega JPMORGAN CHASE & CO $1,146,800 0.90% 58,302
Small IRONWOOD INVESTMENT MANAGEMENT LLC $1,055,000 0.83% 53,635
Large Schonfeld Strategic Advisors LLC $935,092 0.74% 47,539
Large RENAISSANCE TECHNOLOGIES LLC $851,711 0.67% 43,300
Mega JANE STREET GROUP, LLC $840,164 0.66% 42,713
Mega BNP PARIBAS ARBITRAGE, SA $792,484 0.62% 40,289
Mega NORTHERN TRUST CORP Bank $790,537 0.62% 40,190
Mid Polaris Capital Management, LLC $786,800 0.62% 40,000
Micro STILWELL VALUE LLC $786,800 0.62% 40,000
Mid Freestone Capital Holdings, LLC $683,611 0.54% 34,754
Micro GREAT OAK CAPITAL PARTNERS, LLC $671,828 0.53% 34,155
Small Arbiter Partners Capital Management LLC $645,176 0.51% 32,800
Mega BANK OF AMERICA CORP /DE/ Bank $521,491 0.41% 26,512
Small Oppenheimer & Close, LLC $521,294 0.41% 26,502
Large Qube Research & Technologies Ltd $515,255 0.41% 26,195
Large Trexquant Investment LP $512,383 0.40% 26,049
Mid Voleon Capital Management LP $508,823 0.40% 25,868
Mid DEPRINCE RACE & ZOLLO INC $399,222 0.31% 20,296
Mega UBS Group AG $399,221 0.31% 20,296
Large Point72 Asset Management, L.P. $345,739 0.27% 17,577
Mega CITADEL ADVISORS LLC $302,524 0.24% 15,380
Small LYNCH & ASSOCIATES/IN $299,102 0.24% 15,206
Mega CITIGROUP INC $285,313 0.22% 14,505
Small MALTESE CAPITAL MANAGEMENT LLC $265,544 0.21% 13,500
Large HRT FINANCIAL LP $257,480 0.20% 13,090
Mid Brevan Howard Capital Management LP $250,733 0.20% 12,747
Mid ROCKLAND TRUST CO Bank $248,746 0.20% 12,646
Mid Engineers Gate Manager LP $247,979 0.20% 12,607
Mid XTX Topco Ltd $244,458 0.19% 12,428
Large Hudson Bay Capital Management LP $236,079 0.19% 12,002
Mid Farther Finance Advisors, LLC $236,040 0.19% 12,000
Mega BARCLAYS PLC $213,123 0.17% 10,835
Small Intellus Advisors LLC $196,700 0.15% 10,000
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $196,700 0.15% 10,000
Small State of Wyoming $158,756 0.13% 8,071
Mega Vanguard Global Advisers, LLC $128,189 0.10% 6,517
Mega WELLS FARGO & COMPANY/MN $122,405 0.10% 6,223
Mid Allworth Financial LP $34,186 0.03% 1,738
Mega ROYAL BANK OF CANADA Bank $7,021 0.01% 357
Mid EASTERN BANK Bank $2,419 0.00% 123
Mega FMR LLC $1,514 0.00% 77
Small Physician Wealth Advisors, Inc. $1,298 0.00% 66
Micro Avion Wealth $668 0.00% 34
Micro Rialto Wealth Management, LLC $649 0.00% 33
Micro Bare Financial Services, Inc $570 0.00% 29

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