Ken Griffin
AVBC

Ken Griffin’s Avidia Bancorp AVBC Stock Holding History

Ken Griffin’s Portfolio AVBC Stock Details AVBC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$303K Buy
+15,380
New +$283K ﹤0.01% 10458
2025
Q4 		– Sell
-118,249
Closed -$1.77M – 14669
2025
Q3 		$1.77M Buy
+118,249
New +$1.79M ﹤0.01% 6330

Other funds holding AVBC

T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
FCM
FJ Capital Management Mclean, Virginia $888M AUM 18.97% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
HAI
Hennessy Advisors Inc Novato, California $3.13B AUM 77.26% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Ken Griffin's AVBC Position: Q1 2026 in Review

Ken Griffin opened a new position in Avidia Bancorp (AVBC) in Q1 2026: 15,380 shares worth $303K. The stake represents ﹤0.01% of the portfolio and ranks #10458 among its holdings. This is a return to the name: Ken Griffin previously reported a position in AVBC as recently as Q3 2025.

Ken Griffin first reported a position in AVBC in Q3 2025 and has held it in 2 quarters since. The position peaked at $1.77M in Q3 2025. 66 funds tracked by Wall St. Rank hold AVBC as of Q1 2026.

  • Ken Griffin held 15,380 shares of Avidia Bancorp worth $303K as of Q1 2026.
  • Avidia Bancorp was a new Ken Griffin position in Q1 2026.
  • Avidia Bancorp made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #10458 holding.
  • Ken Griffin first reported a position in Avidia Bancorp in Q3 2025 and has held it in 2 quarters since.
  • Ken Griffin's Avidia Bancorp position peaked at $1.77M in Q3 2025.
  • 66 funds tracked by Wall St. Rank held Avidia Bancorp as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.