← The Code Deck
/ deck / lab/portfolio / ticker / WSBK
Ticker · held by 2 filers

WSBK

WINCHESTER BANCORP INC

All tracked filers currently holding WSBK, ranked by position size. Each row links through to the filer's full portfolio.

Total value held
$496.4K
Total shares
47,501
Filers holding
2
Caveat
long only · 13F-eligible managers only
Filers holding WSBK
# Filer Class Shares Value (USD) % of port
1 Renaissance Technologies · Jim Simons (founder) COM 26,502 $276.9K 0.00%
2 Citadel Advisors · Ken Griffin COM 20,999 $219.4K 0.00%

What this is

This page reverses the usual 13F view: instead of "what does Buffett hold," it answers "who holds NVDA?" Across the dozen tracked filers, all current 13F-disclosed holders of WSBK are listed, with the position size and what fraction of each filer's overall portfolio it represents.

Caveats: only the filers tracked here are included (~12 names) — not the whole 13F universe (~6,000 filers). Position values are at the most recent quarter-end, not current market price. Only long positions are visible; shorts and synthetics aren't.

v0.2 · 2026 · data via SEC EDGAR · CUSIP→ticker via OpenFIGI