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
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 $1.24B AUM 41.74% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
NFC
Northstar Financial Companies Conshohocken, Pennsylvania $126M AUM 22.37% 1-Year Est. Return
IWC
Integrated Wealth Concepts Waltham, Massachusetts $12.5B AUM 18.49% 1-Year Est. Return
OC
Oppenheimer & Close New York $159M AUM 60.56% 1-Year Est. Return
MI
M3F Inc Salt Lake City, Utah $404M AUM 17.61% 1-Year Est. Return
VFT
Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return
SPIA
Steward Partners Investment Advisory New York $19.6B AUM 22.89% 1-Year Est. Return

Renaissance Technologies's WSBK Position: Q1 2026 in Review

Renaissance Technologies increased its Winchester Bancorp (WSBK) stake by 17% in Q1 2026, buying an estimated $54.7K and bringing the position to 31,000 shares worth $394K. The position accounts for ﹤0.01% of the portfolio, ranked #2700.

Renaissance Technologies first reported a position in WSBK in Q4 2025 and has held it in 2 quarters since. 19 funds tracked by Wall St. Rank hold WSBK as of Q1 2026.

  • Renaissance Technologies held 31,000 shares of Winchester Bancorp worth $394K as of Q1 2026.
  • Renaissance Technologies bought 4,498 Winchester Bancorp shares in Q1 2026, an estimated $54.7K.
  • Winchester Bancorp made up ﹤0.01% of Renaissance Technologies's portfolio in Q1 2026, its #2700 holding.
  • Renaissance Technologies first reported a position in Winchester Bancorp in Q4 2025 and has held it in 2 quarters since.
  • 19 funds tracked by Wall St. Rank held Winchester Bancorp as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.