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JANE STREET GROUP, LLC

Position in TECX — Tectonic Therapeutic, Inc.

CIK 1595888 NEW YORK, NY

Position in TECX

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$2,262,925
+$2,262,925 QoQ
Shares Held
65,821
Ownership
0.337%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#32
of 122 holders
Holding Since
Dec 2024
6 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in TECX Over Time

Shares Held

Position Value (USD)

Derivatives in TECX

reported options exposure · as of Mar 31, 2026
CallValue
$2,132,790
CallShares
69,000
PutValue
$0
PutShares
0

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. TECX ranks #60 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in TECX

Export CSV
6 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,262,925 65,821
2026-03-31 $2,132,790 69,000
2025-12-31 $403,035 19,321
2025-09-30 $450,616 28,720
2025-03-31 $834,937 47,145
2024-12-31 $1,371,341 29,702