Oppenheimer & Close
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Oppenheimer & Close’s Winchester Bancorp WSBK Stock Holding History

Oppenheimer & Close’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
Q3 		$646K Hold
50,000
– – 0.4% 45
2026
Q2 		$657K Hold
50,000
– – 0.41% 42
2026
Q1 		$635K Hold
50,000
– – 0.4% 44
2025
Q4 		$522K Hold
50,000
– – 0.36% 47
2025
Q3 		$478K Hold
50,000
– – 0.32% 48
2025
Q2 		$448K Buy
+50,000
New +$460K 0.34% 46

Other funds holding WSBK

Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
Northstar Financial Companies
Northstar Financial Companies Conshohocken, Pennsylvania $152M AUM 25.88% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $73.4B AUM 32.8% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
RFG - Bristol Wealth Advisors
RFG - Bristol Wealth Advisors Taunton, Massachusetts $420M AUM 17.18% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $463B AUM
ECM
EagleClaw Capital Management Boston, Massachusetts $753M AUM 20.19% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $468B AUM 17.69% 1-Year Est. Return
Eastern Bank
Eastern Bank Boston, Massachusetts $6.58B AUM 23.57% 1-Year Est. Return
Vanguard Global Advisers
Vanguard Global Advisers Malvern, Pennsylvania $225B AUM

Oppenheimer & Close's WSBK Position: Q3 2026 in Review

Oppenheimer & Close held its Winchester Bancorp (WSBK) position steady in Q3 2026 at 50,000 shares worth $646K. The position accounts for 0.4% of the portfolio, ranked #45.

Oppenheimer & Close first reported a position in WSBK in Q2 2025 and has held it in 6 quarters since. The position peaked at $657K in Q2 2026. 14 funds tracked by Wall St. Rank hold WSBK as of Q3 2026.

  • Oppenheimer & Close held 50,000 shares of Winchester Bancorp worth $646K as of Q3 2026.
  • Oppenheimer & Close left its Winchester Bancorp share count unchanged in Q3 2026.
  • Winchester Bancorp made up 0.4% of Oppenheimer & Close's portfolio in Q3 2026, its #45 holding.
  • Oppenheimer & Close first reported a position in Winchester Bancorp in Q2 2025 and has held it in 6 quarters since.
  • Oppenheimer & Close's Winchester Bancorp position peaked at $657K in Q2 2026.
  • 14 funds tracked by Wall St. Rank held Winchester Bancorp as of Q3 2026.

Based on Oppenheimer & Close's 13F filing for Q3 2026, filed 9 Nov 2026.