Millennium Management
WSBK

Millennium Management’s Winchester Bancorp WSBK Stock Holding History

Millennium Management’s Portfolio WSBK Stock Details WSBK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$147K Sell
11,543
-4,539
-28% -$55.2K ﹤0.01% 5264
2025
Q4 		$168K Sell
16,082
-2,865
-15% -$27.9K ﹤0.01% 5516
2025
Q3 		$182K Sell
18,947
-4,324
-19% -$40.8K ﹤0.01% 5571
2025
Q2 		$208K Buy
+23,271
New +$214K ﹤0.01% 5344

Other funds holding WSBK

MP
Mangrove Partners Greenwich, Connecticut $1.52B AUM 36.54% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
NFC
Northstar Financial Companies Conshohocken, Pennsylvania $148M AUM 33.49% 1-Year Est. Return
IWC
Integrated Wealth Concepts Waltham, Massachusetts $20.5B AUM 24.45% 1-Year Est. Return
OC
Oppenheimer & Close New York $159M AUM 49.98% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
MI
M3F Inc Salt Lake City, Utah $422M AUM 42.84% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM
AllianceBernstein
AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $369B AUM 28.27% 1-Year Est. Return

Millennium Management's WSBK Position: Q1 2026 in Review

Millennium Management reduced its Winchester Bancorp (WSBK) stake by 28% in Q1 2026, selling an estimated $55.2K and leaving 11,543 shares worth $147K. The position accounts for ﹤0.01% of the portfolio, ranked #5264.

Millennium Management first reported a position in WSBK in Q2 2025 and has held it in 4 quarters since. The position peaked at $208K in Q2 2025. 19 funds tracked by Wall St. Rank hold WSBK as of Q1 2026.

  • Millennium Management held 11,543 shares of Winchester Bancorp worth $147K as of Q1 2026.
  • Millennium Management sold 4,539 Winchester Bancorp shares in Q1 2026, an estimated $55.2K.
  • Winchester Bancorp made up ﹤0.01% of Millennium Management's portfolio in Q1 2026, its #5264 holding.
  • Millennium Management first reported a position in Winchester Bancorp in Q2 2025 and has held it in 4 quarters since.
  • Millennium Management's Winchester Bancorp position peaked at $208K in Q2 2025.
  • 19 funds tracked by Wall St. Rank held Winchester Bancorp as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.