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GROUP ONE TRADING LLC

Position in ILMN — Illumina, Inc.

CIK 932540 CHICAGO, IL

Position in ILMN

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$2,706,023
+$773,676 QoQ
Shares Held
15,390
-1.8% QoQ
Ownership
0.010%
of shares outstanding
% of Portfolio
0.09%
of 13F equity value
Holder Rank
#307
of 932 holders
Holding Since
Mar 2020
22 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ILMN Over Time

Shares Held

Position Value (USD)

Position in Diagnostics & Research

Healthcare · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $17,681,744 across 13 Diagnostics & Research names. ILMN ranks #3 (15.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 ILMN
Illumina, Inc.
This page
15,390 $2,706,023

All Filings in ILMN

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22 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,706,023 15,390
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 $1,635,513 11,746
2023-09-30 $1,956,652 14,253
2023-06-30 $177,178 945
2023-03-31 $2,460,379 10,580
2022-09-30 $475,639 2,493
2022-06-30 $10,643,470 57,732
2022-03-31 $15,461,300 44,251
2021-12-31 $39,167,817 102,954
2021-09-30 $50,864,310 125,402
2021-06-30 $27,290,020 57,670
2021-03-31 $17,586,490 45,791
2020-12-31 $4,753,760 12,848
2020-09-30 $7,727,618 25,002
2020-06-30 $3,629,799 9,801
2020-03-31 $1,100,127 4,028