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GROUP ONE TRADING LLC

Position in ILMN — Illumina, Inc.

CIK 932540 CHICAGO, IL

Position in ILMN

as of Mar 31, 2026 · filed May 13, 2026
Position Value
$1,932,347
-$3,099,081 QoQ
Shares Held
15,677
-59.1% QoQ
Ownership
0.010%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
21 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in ILMN Over Time

Shares Held

Position Value (USD)

Position in Diagnostics & Research

Healthcare · as of Mar 31, 2026

GROUP ONE TRADING LLC holds $8,605,509 across 14 Diagnostics & Research names. ILMN ranks #2 (22.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 ILMN
Illumina, Inc.
This page
15,677 $1,932,347

All Filings in ILMN

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21 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $1,932,347 15,677
2025-12-31 $5,031,428 38,361
2025-09-30 $4,217,427 44,408
2025-06-30 $2,554,125 26,770
2025-03-31 $1,854,017 23,368
2024-09-30 $1,542,098 11,825
2023-12-31 $1,590,966 11,746
2023-09-30 $1,903,358 14,253
2023-06-30 $172,352 945
2023-03-31 $2,393,365 10,580
2022-09-30 $462,684 2,493
2022-06-30 $10,353,570 57,732
2022-03-31 $15,040,175 44,251
2021-12-31 $38,100,989 102,954
2021-09-30 $49,478,901 125,402
2021-06-30 $26,546,712 57,670
2021-03-31 $17,107,480 45,791
2020-12-31 $4,624,280 12,848
2020-09-30 $7,517,138 25,002
2020-06-30 $3,530,933 9,801
2020-03-31 $1,070,162 4,028