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GROUP ONE TRADING LLC

Position in STAA — Staar Surgical Co

CIK 932540 CHICAGO, IL

Position in STAA

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$57,638
-$11,608 QoQ
Shares Held
2,009
-45.7% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#136
of 199 holders
Holding Since
Mar 2020
17 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in STAA Over Time

Shares Held

Position Value (USD)

Position in Medical Instruments & Supplies

Healthcare · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $15,163,669 across 18 Medical Instruments & Supplies names. STAA ranks #11 (0.4% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in STAA

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17 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $57,638 2,009
2026-03-31 $69,246 3,703
2025-06-30 $25,170 1,500
2025-03-31 $26,445 1,500
2024-09-30 $36,629 986
2024-03-31 $26,796 700
2023-12-31 $54,555 1,748
2023-09-30 $193,707 4,821
2023-06-30 $20,397 388
2021-12-31 $8,844,231 96,870
2021-09-30 $12,690,795 98,738
2021-06-30 $6,370,535 41,774
2021-03-31 $2,670,562 25,335
2020-12-31 $680,182 8,586
2020-09-30 $2,575,798 45,541
2020-06-30 $1,050,795 17,075
2020-03-31 $418,541 12,974