Group One Trading’s Napco Security Technologies NSSC Stock Holding History

Group One Trading’s Portfolio NSSC Stock Details NSSC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q2	–	Sell	-200	Closed	-$4.6K	–	8425
2025 Q1	$4.6K	Hold	200	–	–	﹤0.01%	6686
2024 Q4	$7.11K	Sell	200 -500	-71%	-$19.2K	﹤0.01%	6261
2024 Q3	$28.3K	Buy	+700	New	+$34.3K	﹤0.01%	5032
2024 Q2	–	Sell	-100	Closed	-$4.02K	–	7235
2024 Q1	$4.02K	Buy	+100	New	+$3.92K	﹤0.01%	6274
2023 Q4	–	Sell	-2,400	Closed	-$53.4K	–	7927
2023 Q3	$53.4K	Buy	2,400 +2,000	+500%	+$60.6K	﹤0.01%	5037
2023 Q2	$13.9K	Buy	+400	New	+$14K	﹤0.01%	6211
2019 Q4	–	Sell	-200	Closed	-$3K	–	5457
2019 Q3	$3K	Buy	+200	New	+$2.82K	﹤0.01%	4866
2017 Q4	–	Sell	-2,000	Closed	-$10K	–	5093
2017 Q3	$10K	Hold	2,000	–	–	﹤0.01%	4294
2017 Q2	$9K	Buy	+2,000	New	+$9.77K	﹤0.01%	4245

Other funds holding NSSC

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Fundsmith LLP London, United Kingdom $12.8B AUM 6.9% 1-Year Est. Return

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

CCM

Copeland Capital Management Conshohocken, Pennsylvania $4.5B AUM 18.67% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

DSCM

Divisadero Street Capital Management Miami, Florida $2.39B AUM 134.55% 1-Year Est. Return

Group One Trading's NSSC Position: Q4 2025 in Review

Group One Trading sold out of Napco Security Technologies (NSSC) in Q4 2025, closing a stake of 419 shares — an estimated $18K sold.

Group One Trading first reported a position in NSSC in Q2 2017 and held it in 8 quarters. The position peaked at $100K in Q1 2023. 254 funds tracked by Wall St. Rank hold NSSC as of Q4 2025.

Group One Trading reported no remaining Napco Security Technologies position as of Q4 2025 after selling out during the quarter.
Group One Trading sold 419 Napco Security Technologies shares in Q4 2025, an estimated $18K.
Group One Trading first reported a position in Napco Security Technologies in Q2 2017 and held it in 8 quarters.
Group One Trading's Napco Security Technologies position peaked at $100K in Q1 2023.
254 funds tracked by Wall St. Rank held Napco Security Technologies as of Q4 2025.

Based on Group One Trading's 13F filing for Q4 2025, filed 12 Feb 2026.