SEI Investments
NSSC icon

SEI Investments’s Napco Security Technologies NSSC Stock Holding History

SEI Investments’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
2026
Q3 		$5.18M Buy
145,469
+10,508
+8% +$388K ﹤0.01% 1450
2026
Q2 		$5.13M Buy
134,961
+3,543
+3% +$141K ﹤0.01% 1497
2026
Q1 		$5.18M Buy
131,418
+36,904
+39% +$1.55M ﹤0.01% 1504
2025
Q4 		$3.94M Buy
94,514
+5,558
+6% +$234K ﹤0.01% 1491
2025
Q3 		$3.82M Buy
88,956
+6,494
+8% +$225K ﹤0.01% 1419
2025
Q2 		$2.45M Buy
82,462
+27,313
+50% +$703K ﹤0.01% 1569
2025
Q1 		$1.27M Buy
55,149
+10,001
+22% +$284K ﹤0.01% 1811
2024
Q4 		$1.61M Buy
45,148
+6,991
+18% +$268K ﹤0.01% 1754
2024
Q3 		$1.54M Buy
38,157
+6,189
+19% +$303K ﹤0.01% 1790
2024
Q2 		$1.66M Buy
31,968
+14,985
+88% +$686K ﹤0.01% 1717
2024
Q1 		$682K Buy
+16,983
New +$667K ﹤0.01% 2014
2023
Q3 		– Sell
-24,579
Closed -$852K – 2666
2023
Q2 		$852K Sell
24,579
-2,795
-10% -$97.6K ﹤0.01% 1934
2023
Q1 		$1.03M Buy
27,374
+14,609
+114% +$465K ﹤0.01% 1862
2022
Q4 		$351K Sell
12,765
-2,592
-17% -$69.9K ﹤0.01% 2149
2022
Q3 		$447K Buy
+15,357
New +$410K ﹤0.01% 2139
2019
Q3 		– Sell
-45,132
Closed -$669K – 2414
2019
Q2 		$669K Buy
+45,132
New +$598K ﹤0.01% 1739
2018
Q3 		– Sell
-224
Closed -$2K – 3128
2018
Q2 		$2K Buy
224
+126
+129% +$745 ﹤0.01% 3359
2018
Q1 		$1K Buy
98
+34
+53% +$165 ﹤0.01% 3342
2017
Q4 		$0 Hold
64
– – ﹤0.01% 3435
2017
Q3 		$0 Buy
+64
New +$286 ﹤0.01% 3328

Other funds holding NSSC

BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Copeland Capital Management
Copeland Capital Management Conshohocken, Pennsylvania $4.34B AUM 17.52% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 38.25% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
DePrince Race & Zollo Inc (DRZ)
DePrince Race & Zollo Inc (DRZ) Winter Park, Florida $5.66B AUM 23.19% 1-Year Est. Return

SEI Investments's NSSC Position: Q3 2026 in Review

SEI Investments increased its Napco Security Technologies (NSSC) stake by 7.8% in Q3 2026, buying an estimated $388K and bringing the position to 145,469 shares worth $5.18M. The position accounts for ﹤0.01% of the portfolio, ranked #1450.

SEI Investments first reported a position in NSSC in Q3 2017 and has held it in 20 quarters since. 196 funds tracked by Wall St. Rank hold NSSC as of Q3 2026.

  • SEI Investments held 145,469 shares of Napco Security Technologies worth $5.18M as of Q3 2026.
  • SEI Investments bought 10,508 Napco Security Technologies shares in Q3 2026, an estimated $388K.
  • Napco Security Technologies made up ﹤0.01% of SEI Investments's portfolio in Q3 2026, its #1450 holding.
  • SEI Investments first reported a position in Napco Security Technologies in Q3 2017 and has held it in 20 quarters since.
  • 196 funds tracked by Wall St. Rank held Napco Security Technologies as of Q3 2026.

Based on SEI Investments's 13F filing for Q3 2026, filed 10 Nov 2026.