NAPCO SEC TECHNOLOGIES INC

Ticker: NSSC CUSIP: 630402105 Class: Common Stock

Walleye Trading LLC's Holding History (CIK: 0001388391)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 4,607 Value ($000) $192 Avg Close $41.96 Range $37.43 - $47.96

Q2 2025

Shares 2,386 Value ($000) $71 Avg Close $25.46 Range $18.78 - $30.03

Q2 2024

Shares 1,349 Value ($000) $70 Avg Close $44.67 Range $36.90 - $52.36

Q2 2023

Shares 3,197 Value ($000) $111 Avg Close $33.75 Range $25.82 - $39.90

Q3 2018

Shares 200 Value ($000) $3 Avg Close $7.46 Range $6.23 - $8.42

Q3 2016

Shares 4,600 Value ($000) $33 Avg Close $3.42 Range $3.03 - $3.74

Q4 2015

Shares 300 Value ($000) $2 Avg Close $3.00 Range $2.51 - $3.67

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	4,607	$192	$41.96	$37.43 - $47.96
Q2 2025	2,386	$71	$25.46	$18.78 - $30.03
Q2 2024	1,349	$70	$44.67	$36.90 - $52.36
Q2 2023	3,197	$111	$33.75	$25.82 - $39.90
Q3 2018	200	$3	$7.46	$6.23 - $8.42
Q3 2016	4,600	$33	$3.42	$3.03 - $3.74
Q4 2015	300	$2	$3.00	$2.51 - $3.67