Skip to main content

JANE STREET GROUP, LLC

Position in PTGX — Protagonist Therapeutics, Inc

CIK 1595888 NEW YORK, NY

Position in PTGX

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$2,069,395
+$1,689,218 QoQ
Shares Held
16,882
+368.0% QoQ
Ownership
0.026%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#141
of 343 holders
Holding Since
Sep 2020
22 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in PTGX Over Time

Shares Held

Position Value (USD)

Derivatives in PTGX

reported options exposure · as of Jun 30, 2026
CallValue
$1,250,316
CallShares
10,200
PutValue
$281,934
PutShares
2,300

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 $1,364,050,815 across 292 Biotechnology names. PTGX ranks #63 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in PTGX

Export CSV
32 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,069,395 16,882
2026-06-30 $281,934 2,300
2026-06-30 $1,250,316 10,200
2026-03-31 $4,479,500 42,500
2026-03-31 $380,177 3,607
2025-12-31 $2,996,372 34,307
2025-12-31 $6,078,864 69,600
2025-09-30 $1,713,894 25,800
2025-09-30 $2,945,437 44,339
2025-06-30 $486,376 8,800
2025-06-30 $1,121,981 20,300
2025-03-31 $9,347,988 193,300
2025-03-31 $2,456,688 50,800
2025-03-31 $4,884,360 101,000
2024-12-31 $420,740 10,900
2024-12-31 $2,375,867 61,551
2024-09-30 $1,478,610 32,858
2024-06-30 $5,866,625 169,311
2024-03-31 $2,351,140 81,270
2023-12-31 $1,672,307 72,931
2023-09-30 $642,280 38,506
2023-06-30 $602,364 21,809
2023-03-31 $1,292,968 56,216
2022-12-31 $609,770 55,891
2022-09-30 $86,736 10,289
2022-06-30 $300,231 37,956
2022-03-31 $726,976 30,700
2021-12-31 $2,612,743 76,396
2021-12-31 $1,309,860 38,300
2021-09-30 $1,025,172 57,854
2020-12-31 $291,775 14,473
2020-09-30 $259,389 13,268