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Disclosery

NSSC NAPCO SEC TECHNOLOGIES INC

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Stock (common), issuer CIK 69633

225 managers (230 13F filers) reported a position in NSSC shares at 2025-03-31, 31,655,141 shares in all. 36 filers opened a position and 58 filers sold out during the quarter.

Managers
225
13F filers
230
New
36
Added
90
Reduced
76
Sold out
58
Shares held by filers
31,655,141

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2025

Filers in the available 13F reports with a share position at 2025-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.3,041,430$70M<0.01%-126,82813F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC2,901,671$66.8M<0.01%+52,02013F-HRTimelineGroup
Copeland Capital Management, LLC1,493,928$34.4M0.69%+299,30513F-HRTimeline
Doma Perpetual Capital Management LLC1,175,655$27.1M10.64%+409,12313F-HRTimeline
FMR LLCin group FMR LLC1,094,045$25.2M<0.01%-1,063,76913F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,017,046$23.4M<0.01%+6,35013F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson967,432$22.3M0.01%+28,07713F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP850,845$19.6M<0.01%-165,70913F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP814,441$18.8M<0.01%-12,10913F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC769,789$17.7M0.02%+295,75513F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA727,368$16.7M<0.01%-19,43613F-HR/ATimelineGroup
ENVESTNET ASSET MANAGEMENT INCgroup of 2 filers holding712,674$16.4M+86,659Timeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP673,261$15.5M<0.01%-13,55613F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…649,318$14.9M<0.01%+356,09413F-HRTimelineGroup
EMERALD ADVISERS, LLCgroup of 2 filers holding629,659$14.5M-266,055Timeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC589,290$13.6M<0.01%+254,00713F-HR/ATimelineGroup
MORGAN STANLEYin group MORGAN STANLEY580,320$13.4M<0.01%+78,22113F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO550,884$12.7M<0.01%+267,07213F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC482,820$11.1M0.04%+172,99913F-HRTimeline
GW&K Investment Management, LLC443,059$10.2M0.09%-2,18313F-HRTimeline
ALTA CAPITAL MANAGEMENT LLC/407,991$9.39M0.61%+8,39213F-HRTimeline
Granite Investment Partners, LLC374,181$8.61M0.44%-163,00613F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…368,779$8.49M0.02%+22,81313F-HRTimelineGroup
CenterBook Partners LP356,155$8.2M0.52%new13F-HRTimeline
Qube Research & Technologies Ltd349,855$8.05M0.01%-60,95513F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co346,561$7.98M<0.01%-28,99013F-HR/ATimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.303,601$6.99M0.02%-334,57213F-HR/ATimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC286,056$6.59M0.01%+117,88213F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/283,889$6.54M<0.01%+179,09313F-HRTimelineGroup
CONGRESS ASSET MANAGEMENT CO278,796$6.42M0.05%-87413F-HRTimeline
KORNITZER CAPITAL MANAGEMENT INC /KS274,970$6.33M0.13%013F-HRTimeline
Visionary Wealth Advisors266,369$6.13M0.37%-59,82413F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC253,100$5.83M0.01%-24,20013F-HRTimeline
GAMCO Investors (Gabelli)group of 2 filers holding223,000$5.13M+15,000Timeline
UNITED CAPITAL FINANCIAL ADVISORS, LLCin group UNITED CAPITAL FINANCIAL ADVI…209,699$4.83M0.04%+103,80713F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC208,469$4.8M0.02%-224,92313F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp199,631$4.6M<0.01%-2,21513F-HRTimelineGroup
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…196,300$4.52M0.01%+162,80013F-HRTimeline
RICE HALL JAMES & ASSOCIATES, LLC194,829$4.48M0.26%-1,64313F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.185,503$4.27M0.01%new13F-HRTimelineGroup
ALGERT GLOBAL LLC183,649$4.23M0.1%+88,48413F-HR/ATimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\173,942$4M<0.01%+143,30413F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding172,787$3.98M-30,969Timeline
FIRST NATIONAL BANK OF OMAHAgroup of 2 filers holding168,106$3.87M-2,713Timeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS145,333$3.35M<0.01%+106,37013F-HRTimelineGroup
HighTower Advisors, LLC133,945$3.08M<0.01%-5,83513F-HRTimeline
Redmond Asset Management, LLC131,540$3.03M0.78%-1,84013F-HRTimeline
PDT Partners, LLC131,122$3.02M0.21%+103,06513F-HRTimeline
Uniplan Investment Counsel, Inc.130,984$3.02M0.29%+1,27013F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.130,858$3.01M0.05%-3,31013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Bridge City Capital, LLC119,893$2.76M0.83%+50,64313F-HRTimeline
SG Americas Securities, LLC115,714$2.66M0.01%+93,11013F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC115,473$2.66M0.01%-82,00113F-HR/ATimelineGroup
Divisadero Street Capital Management, LPin group Divisadero Street Capital Man…111,566$2.57M0.3%013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…110,066$2.53M<0.01%+70,42713F-HRTimelineGroup
ISTHMUS PARTNERS, LLC102,380$2.36M0.3%+15,01713F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE101,508$2.34M<0.01%+30,80013F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC98,221$2.26M<0.01%+76,47813F-HR/ATimelineGroup
Voleon Capital Management LP95,848$2.21M0.17%+84,69213F-HRTimeline
MCMORGAN & CO LLC92,959$2.14M0.34%-5,36013F-HRTimeline
Nuveen, LLCin group TIAA92,408$2.13M<0.01%13F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP90,860$2.09M<0.01%+10,37813F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC84,231$1.94M<0.01%-1,01013F-HRTimelineGroup
ExodusPoint Capital Management, LP83,878$1.93M0.03%new13F-HRTimeline
Laurus Global Equity Management Inc.79,560$1.83M1.22%013F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC77,300$1.78M0.02%new13F-HRTimelineGroup
Man Group plcin group Man Group plc75,615$1.74M0.01%-3,12813F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND74,963$1.73M<0.01%-4,58513F-HR/ATimeline
TOWNSQUARE CAPITAL LLC74,885$1.72M0.02%+8,02613F-HRTimeline
Cynosure Group, LLC71,587$1.65M0.23%+55,49713F-HRTimeline
Swiss National Bank71,100$1.64M<0.01%-1,30013F-HRTimeline
DEPRINCE RACE & ZOLLO INC67,877$1.56M0.03%new13F-HRTimeline
Taylor Frigon Capital Management LLC66,483$1.53M0.91%-2,16513F-HRTimeline
Trexquant Investment LP65,134$1.5M0.02%-61,92213F-HRTimeline
Verition Fund Management LLC63,852$1.47M0.01%+50,58713F-HRTimeline
Moody Aldrich Partners LLC62,464$1.44M0.3%-16,91813F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD58,800$1.35M<0.01%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…58,611$1.35M<0.01%-55,63513F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO55,149$1.27M<0.01%+10,00113F-HR/ATimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN54,498$1.25M<0.01%-7,50913F-HRTimelineGroup
Hennion & Walsh Asset Management, Inc.54,482$1.25M0.06%+5,12713F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC54,185$1.25M0.02%+39,73613F-HR/ATimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC51,956$1.2M<0.01%-32013F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC51,653$1.19M<0.01%-11,33013F-HRTimeline
Quantbot Technologies LP51,531$1.19M0.04%new13F-HRTimeline
RHUMBLINE ADVISERS50,446$1.16M<0.01%+87913F-HR/ATimeline
Semanteon Capital Management, LP50,041$1.15M0.63%new13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC47,547$1.09M<0.01%-17,59813F-HR/ATimelineGroup
Y-Intercept (Hong Kong) Ltd43,355$998K0.07%+29,63913F-HRTimeline
LPL Financial LLC42,773$985K<0.01%+8,48113F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc41,197$948K<0.01%-11713F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.41,016$944K<0.01%+5,27913F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.37,026$852K<0.01%-41513F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…37,019$852K0.01%+9,81013F-HRTimeline
GSA CAPITAL PARTNERS LLP35,965$828K0.07%+1,18613F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP34,434$793K<0.01%-287,85913F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…34,350$791K<0.01%013F-HRTimeline
HRT FINANCIAL LP33,147$763K<0.01%-4513F-HRTimeline
Nebula Research & Development LLC29,452$678K0.06%+8,64713F-HRTimeline
Engineers Gate Manager LP29,357$676K0.01%new13F-HRTimeline
HERITAGE INVESTORS MANAGEMENT CORP29,097$670K0.02%013F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…28,593$658K<0.01%-17,94813F-HR/ATimelineGroup
CITIGROUP INCin group CITIGROUP INC28,560$657K<0.01%-2,89213F-HRTimelineGroup
Legato Capital Management LLC27,474$632K0.09%+9,68813F-HRTimeline
RAFFLES ASSOCIATES LP27,424$631K0.77%013F-HRTimeline
Linden Thomas Advisory Services, LLC27,181$626K0.08%+2,60213F-HRTimeline
DARK FOREST CAPITAL MANAGEMENT LP26,232$604K0.03%+14,85413F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC25,403$585K0.01%+8,49013F-HRTimeline
AVIVA PLCin group AVIVA PLC24,788$571K<0.01%+8,62813F-HRTimelineGroup
IEQ CAPITAL, LLC24,396$562K<0.01%new13F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP24,271$559K<0.01%-3,14913F-HRTimelineGroup
Dynamic Technology Lab Private Ltd23,474$540K0.08%new13F-HRTimeline
Gotham Asset Management, LLC23,426$539K<0.01%+9,70013F-HRTimeline
NORGES BANK22,935$528K<0.01%new13F-HR/ATimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding21,650$502K+156Timeline
Cambridge Investment Research Advisors,…21,421$493K<0.01%-34513F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…21,106$486K<0.01%-44313F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…20,899$481K<0.01%+88513F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/20,864$481K<0.01%+1,83713F-HRTimeline
Numerai GP LLC20,863$480K0.09%new13F-HRTimeline
TWINBEECH CAPITAL LP20,666$476K0.01%new13F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources20,045$461K<0.01%+20413F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd19,539$450K0.02%+10,58913F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS19,455$448K<0.01%-24,91513F-HRTimeline
AdvisorShares Investments LLC19,200$435K0.09%new13F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC18,577$428K0.02%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …18,282$421K<0.01%+71013F-HRTimelineGroup
Jain Global LLC17,812$410K0.01%new13F-HRTimeline
Corebridge Financial, Inc.in group Corebridge Financial, Inc.17,249$397K<0.01%-25513F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC17,050$392K<0.01%+9,08813F-HRTimelineGroup
Creative Planningin group Creative Planning16,428$378K<0.01%+3,35813F-HRTimelineGroup
EntryPoint Capital, LLC14,561$335K0.15%new13F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC14,297$329K<0.01%+6813F-HRTimelineGroup
Snowden Capital Advisors LLC14,196$329K0.01%+72313F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co13,925$321K<0.01%013F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC13,891$320K<0.01%-11,17913F-HRTimelineGroup
Campbell & CO Investment Adviser LLC13,770$317K0.02%-10,63313F-HRTimeline
SHAKER INVESTMENTS LLC/OH13,737$316K0.15%-21,73313F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC13,009$299K<0.01%+2,42313F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management12,559$289K<0.01%-94,27013F-HRTimelineGroup
Graham Capital Management, L.P.12,453$287K0.01%new13F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC12,464$286K<0.01%+4,67513F-HRTimelineGroup
Wallace Advisory Group, LLC7,652$272K0.19%+50413F-HRTimeline
AVANTAX ADVISORY SERVICES, INC.11,572$266K<0.01%+1,89313F-HRTimeline
CIM, LLC11,012$254K0.04%-41013F-HRTimeline
Tributary Capital Management, LLC10,748$247K0.02%-1,30013F-HRTimeline
Catalyst Funds Management Pty Ltd10,700$246K0.06%new13F-HRTimeline
CWM, LLCin group CWM, LLC10,699$246K<0.01%+8,74713F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM10,489$241K<0.01%-19313F-HRTimeline
Quantinno Capital Management LP10,146$234K<0.01%new13F-HRTimeline
Corient Private Wealth LPgroup of 2 filers holding10,000$230K-8,104Timeline
EARNEST PARTNERS LLC9,600$221K<0.01%013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC9,498$219K<0.01%-1,09913F-HR/ATimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…9,090$209K<0.01%013F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP8,696$200K<0.01%-6,93613F-HRTimelineGroup
State of Wyoming8,587$198K0.03%+1,49013F-HRTimeline
Police & Firemen's Retirement System of…7,721$178K<0.01%013F-HRTimeline
KLP KAPITALFORVALTNING AS6,700$155K<0.01%013F-HRTimeline
COMERICA BANK6,545$151K<0.01%+20813F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…6,222$143K<0.01%-19,93413F-HRTimeline
BARRETT & COMPANY, INC.5,999$138K0.06%+413F-HRTimeline
AlphaQuest LLC5,302$122K0.01%-4,12313F-HRTimeline
Point72 Asia (Singapore) Pte. Ltd.4,745$109K0.03%+3,24113F-HRTimeline
DekaBank Deutsche Girozentrale4,553$103K<0.01%013F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC3,991$91K<0.01%new13F-HRTimelineGroup
Farther Finance Advisors, LLC3,832$86.9K<0.01%+1,00213F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.3,663$84.3K<0.01%+1,93613F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…3,551$82K<0.01%013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…3,439$79.2K<0.01%013F-HRTimelineGroup
Aster Capital Management (DIFC) Ltd2,481$60.9K0.01%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\2,357$54.3K<0.01%-7813F-HRTimelineGroup
KBC Group NVin group KBC Group NV2,049$47K<0.01%013F-HRTimelineGroup
Catalyst Capital Advisors LLC1,875$43.2K<0.01%-1,90013F-HRTimeline
Truvestments Capital LLC1,795$41.3K0.01%-5,21413F-HRTimeline
Arax Advisory Partners1,364$31.4K<0.01%+33513F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,279$29.4K<0.01%+58613F-HRTimelineGroup
MPWM ADVISORY SOLUTIONS, LLC1,187$27.3K0.02%-31813F-HRTimeline
AMALGAMATED BANK1,180$27K<0.01%+413F-HRTimeline
GAMMA Investing LLC1,106$25.5K<0.01%+76813F-HR/ATimeline
Physician Wealth Advisors, Inc.1,040$23.9K<0.01%-72513F-HRTimeline
First Horizon Advisors, Inc.1,036$23.8K<0.01%+49513F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK927$21.3K<0.01%-1,40813F-HRTimelineGroup
CBIZ Investment Advisory Services, LLC907$21K<0.01%+17313F-HR/ATimeline
Versant Capital Management, Inc735$16.9K<0.01%new13F-HRTimeline
Geneos Wealth Management Inc.193$14.1K<0.01%+9613F-HRTimelineAmount filed as zero, left out of ratios.
QUADRANT CAPITAL GROUP LLC607$14K<0.01%-1513F-HRTimeline
Amundiin group Amundi601$13.8K<0.01%+10113F-HRTimelineGroup
Financial Network Wealth Advisors LLC551$12.7K0.02%+16913F-HRTimeline
NFSG Corp509$11.7K<0.01%+213F-HRTimeline
TOTH FINANCIAL ADVISORY CORP500$11.5K<0.01%013F-HRTimeline
Retirement Wealth Solutions LLC457$10.5K0.01%+4213F-HRTimeline
CoreCap Advisors, LLC439$10.1K<0.01%new13F-HRTimeline
Binnacle Investments Inc424$9.76K0.01%13F-HRTimeline
True Wealth Design, LLC294$6.77K<0.01%+28813F-HRTimeline
Federation des caisses Desjardins du Qu…260$5.99K<0.01%-9413F-HRTimeline
SIGNATUREFD, LLC226$5.2K<0.01%+7213F-HRTimeline
WOLFF WIESE MAGANA LLC200$4.6K<0.01%013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC177$4.09K<0.01%+13913F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…172$3.96K<0.01%+16013F-HRTimelineGroup
Brooklyn Investment Group166$3.82K<0.01%new13F-HRTimeline