Stock Ownership/NSSC

NAPCO SEC TECHNOLOGIES INC (NSSC): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in NSSC · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
13
13F filers
Aggregate Value
$115.6M
Across holders
Last Price
$37.59
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity6 increased6 reduced6 exited
Full exits: BALYASNY ASSET MANAGEMENT LLC, CITADEL ADVISORS LLC, MILLENNIUM MANAGEMENT LLC, MARSHALL WACE, LLP, Qube Research & Technologies Ltd, Walleye Capital LLC
Institutional Holders of NSSC
↗
13 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund698K$26.5M22.9%0.0%Reduced$-5.6MQ2 2026
Fundsmith LLP
CIK 0001569205
Institutional Manager607K$23.1M19.9%0.2%Added+$8.5MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund406K$15.4M13.3%0.0%Reduced$-1.2MQ2 2026
Point72 Asset Management, L.P.
CIK 0001603466
Hedge Fund380K$14.4M12.5%0.0%Reduced$-3.9MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund296K$11.2M9.7%0.0%Added+$11.2MQ2 2026
GAMCO INVESTORS, INC. ET AL
CIK 0000807249
Institutional Manager179K$6.8M5.9%0.1%Unchanged+$0Q2 2026
Rockefeller Capital Management L.P.
CIK 0001739439
Hedge Fund178K$6.8M5.9%0.0%Added+$6.8MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund173K$6.6M5.7%0.0%Added+$3.3MQ2 2026
Gotham Asset Management, LLC
CIK 0001510387
Hedge Fund39K$1.5M1.3%0.0%Reduced$-252KQ2 2026
Magnetar Financial LLC
CIK 0001352851
Hedge Fund29K$1.1M1.0%0.0%Added+$282KQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPReduced
Hedge Fund
$26.5M· 22.9% of total· 0.0% port· 698K sh· $-5.6M QoQ· Q2 2026
Fundsmith LLPAdded
Institutional Manager
$23.1M· 19.9% of total· 0.2% port· 607K sh· +$8.5M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$15.4M· 13.3% of total· 0.0% port· 406K sh· $-1.2M QoQ· Q2 2026
Point72 Asset Management, L.P.Reduced
Hedge Fund
$14.4M· 12.5% of total· 0.0% port· 380K sh· $-3.9M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$11.2M· 9.7% of total· 0.0% port· 296K sh· +$11.2M QoQ· Q2 2026
GAMCO INVESTORS, INC. ET ALUnchanged
Institutional Manager
$6.8M· 5.9% of total· 0.1% port· 179K sh· +$0 QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$6.8M· 5.9% of total· 0.0% port· 178K sh· +$6.8M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$6.6M· 5.7% of total· 0.0% port· 173K sh· +$3.3M QoQ· Q2 2026
Gotham Asset Management, LLCReduced
Hedge Fund
$1.5M· 1.3% of total· 0.0% port· 39K sh· $-252K QoQ· Q2 2026
Magnetar Financial LLCAdded
Hedge Fund
$1.1M· 1.0% of total· 0.0% port· 29K sh· +$282K QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$856K· 0.7% of total· 0.0% port· 23K sh· +$630K QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$694K· 0.6% of total· 0.0% port· 18K sh· +$418K QoQ· Q2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLCReduced
Hedge Fund
$684K· 0.6% of total· 0.0% port· 18K sh· $-3.1M QoQ· Q2 2026
1–10 of 13
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