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JANE STREET GROUP, LLC

Position in DFTX — Definium Therapeutics, Inc.

CIK 1595888 NEW YORK, NY

Position in DFTX

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$0
-$4,918,554 QoQ
Shares Held
0
-100.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2026
2 quarters on record

Derivatives in DFTX

reported options exposure · as of Jun 30, 2026
CallValue
$19,940,256
CallShares
423,900
PutValue
$15,415,008
PutShares
327,700

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Jun 30, 2026

JANE STREET GROUP, LLC holds $1,364,130,252 across 291 Biotechnology names.

# Ticker Company Shares Value (USD) Open

All Filings in DFTX

Export CSV
5 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $19,940,256 423,900
2026-06-30 $15,415,008 327,700
2026-03-31 $652,050 34,500
2026-03-31 $996,030 52,700
2026-03-31 $4,918,554 260,241