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Ticker · held by 3 filers

JSPR

JASPER THERAPEUTICS INC

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

Total value held
$16.3M
Total shares
993,363
Filers holding
3 · 4 positions
Caveat
long only · 13F-eligible managers only
Filers holding JSPR
# Filer Class Shares Value (USD) % of port
1 BlackRock · Larry Fink COM NEW 692,980 $15.7M 0.00%
2 Renaissance Technologies · Jim Simons (founder) COM NEW 227,183 $415.7K 0.00%
3 Citadel Advisors · Ken Griffin CALLCOM NEW 48,200 $88.2K 0.00%
4 Citadel Advisors · Ken Griffin PUTCOM NEW 25,000 $45.8K 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 JSPR 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