Renaissance Technologies
WSBK

Renaissance Technologies’s Winchester Bancorp WSBK Stock Holding History

Renaissance Technologies’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
Q2 		$413K Buy
31,400
+400
+1% +$5.14K ﹤0.01% 2669
2026
Q1 		$394K Buy
31,000
+4,498
+17% +$54.7K ﹤0.01% 2700
2025
Q4 		$277K Buy
+26,502
New +$258K ﹤0.01% 2788

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 $15.3B AUM 25.33% 1-Year Est. Return
OC
Oppenheimer & Close New York $159M AUM 49.98% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM
Raymond James Financial
Raymond James Financial St Petersburg, Florida $369B AUM 28.27% 1-Year Est. Return
SPIA
Steward Partners Investment Advisory New York $19.6B AUM 29.84% 1-Year Est. Return

Renaissance Technologies's WSBK Position: Q2 2026 in Review

Renaissance Technologies increased its Winchester Bancorp (WSBK) stake by 1.3% in Q2 2026, buying an estimated $5.14K and bringing the position to 31,400 shares worth $413K. The position accounts for ﹤0.01% of the portfolio, ranked #2669.

Renaissance Technologies first reported a position in WSBK in Q4 2025 and has held it in 3 quarters since. 21 funds tracked by Wall St. Rank hold WSBK as of Q2 2026.

  • Renaissance Technologies held 31,400 shares of Winchester Bancorp worth $413K as of Q2 2026.
  • Renaissance Technologies bought 400 Winchester Bancorp shares in Q2 2026, an estimated $5.14K.
  • Winchester Bancorp made up ﹤0.01% of Renaissance Technologies's portfolio in Q2 2026, its #2669 holding.
  • Renaissance Technologies first reported a position in Winchester Bancorp in Q4 2025 and has held it in 3 quarters since.
  • 21 funds tracked by Wall St. Rank held Winchester Bancorp as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.