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JANE STREET GROUP, LLC

Position in ASPI — ASP Isotopes Inc.

CIK 1595888 NEW YORK, NY

Position in ASPI

as of Mar 31, 2026 · filed May 12, 2026
Position Value
$3,025,396
-$5,464,845 QoQ
Shares Held
684,479
-56.9% QoQ
Ownership
0.544%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2024
9 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in ASPI Over Time

Shares Held

Position Value (USD)

Derivatives in ASPI

reported options exposure · as of Mar 31, 2026
CallValue
$734,604
CallShares
166,200
PutValue
$687,752
PutShares
155,600

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 Chemicals

Basic Materials · as of Mar 31, 2026

JANE STREET GROUP, LLC holds $128,307,669 across 13 Chemicals names. ASPI ranks #10 (2.4% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ASPI

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17 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $734,604 166,200
2026-03-31 $3,025,396 684,479
2026-03-31 $687,752 155,600
2025-12-31 $409,275 76,500
2025-12-31 $729,740 136,400
2025-12-31 $8,490,241 1,586,961
2025-09-30 $762,866 79,300
2025-09-30 $11,724,056 1,218,717
2025-09-30 $3,505,528 364,400
2025-06-30 $487,232 66,200
2025-06-30 $796,352 108,200
2025-06-30 $1,099,834 149,434
2025-03-31 $331,114 70,600
2024-12-31 $220,611 48,700
2024-09-30 $405,793 145,969
2024-06-30 $339,056 110,803
2024-03-31 $583,684 141,328