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Disclosery

ATRO ASTRONICS CORP

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Stock (common), issuer CIK 8063

224 managers (229 13F filers) reported a position in ATRO shares at 2025-09-30, 29,122,490 shares in all. 46 filers opened a position and 43 filers sold out during the quarter.

Managers
224
13F filers
229
New
46
Added
75
Reduced
79
Sold out
43
Shares held by filers
29,122,490

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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.2,266,091$103M<0.01%+31,54213F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC1,936,166$88.3M<0.01%+105,31113F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,452,368$66.2M<0.01%-49,54313F-HRTimelineGroup
Capital International Investorsin group Capital International Investo…1,407,000$64.2M0.01%new13F-HRTimelineGroup
325 CAPITAL LLCin group 325 CAPITAL LLC1,360,675$62.1M18.86%013F-HRTimelineGroup
ACK Asset Management LLC1,230,000$56.1M7.02%-830,00013F-HRTimeline
NEXT CENTURY GROWTH INVESTORS LLC1,214,287$55.4M4.04%-53,58713F-HRTimeline
Luxor Capital Group, LP1,155,398$52.7M7.23%new13F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.882,061$40.2M0.03%+33,46213F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC748,418$34.1M<0.01%+12,09113F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP677,163$30.9M0.01%-77,63113F-HRTimelineGroup
Senator Investment Group LP621,694$28.4M1.05%-119,38313F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
ROYCE & ASSOCIATES LP604,777$27.6M0.28%-101,12913F-HRTimeline
Private Capital Management, LLC561,257$25.6M2.37%+158,71413F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC539,006$24.6M0.01%+199,05913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY498,158$22.7M<0.01%-166,12213F-HR/ATimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP473,922$21.6M0.02%+37,87113F-HRTimelineGroup
Nuveen, LLCin group TIAA466,285$21.3M0.01%-20,85213F-HRTimelineGroup
Schonfeld Strategic Advisors LLC463,109$21.1M0.15%-117,74913F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS455,444$20.8M0.02%+103,36913F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\417,462$19M0.01%+331,69213F-HRTimelineGroup
HENNESSY ADVISORS INC416,300$19M0.66%-33,10013F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC410,246$18.7M<0.01%-32,07813F-HRTimelineGroup
DENDUR CAPITAL LP362,000$16.5M1.84%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC346,502$15.8M0.01%-337,73313F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co287,524$13.1M<0.01%+197,21713F-HRTimelineGroup
NEEDHAM INVESTMENT MANAGEMENT LLCin group NEEDHAM INVESTMENT MANAGEMENT…272,500$12.4M0.87%+5,00013F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD269,600$12.3M0.01%+178,80013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP269,537$12.3M<0.01%-13713F-HRTimelineGroup
Driehaus Capital Management LLC260,805$11.9M0.09%new13F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC255,231$11.6M0.01%+17,21313F-HRTimelineGroup
SG Capital Management LLC254,707$11.6M1.16%new13F-HRTimeline
First Eagle Investment Management, LLCin group First Eagle Investment Manage…236,326$10.8M0.02%+14,00013F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC236,140$10.8M0.01%+231,31213F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…209,912$9.57M0.03%+46,53713F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC209,828$9.57M<0.01%+58,92713F-HRTimelineGroup
Minerva Advisors LLC195,041$8.9M5.65%-60,86413F-HRTimeline
VOLORIDGE INVESTMENT MANAGEMENT, LLC180,954$8.25M0.03%+82,18713F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC164,600$7.51M0.01%-180,30013F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC157,023$7.16M0.02%+143,82813F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC150,488$6.86M0.01%-311,12913F-HRTimelineGroup
Advisors Asset Management, Inc.140,013$6.39M0.11%+9,76213F-HR/ATimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC136,575$6.23M0.01%+86,66513F-HRTimelineGroup
Trexquant Investment LP136,518$6.23M0.06%-110,63213F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp135,330$6.17M<0.01%+57913F-HRTimelineGroup
EARNEST PARTNERS LLC129,621$5.91M0.03%-106,85413F-HRTimeline
Informed Momentum Co LLC128,674$5.77M0.66%-3,44413F-HRTimeline
Invesco Ltd.in group Invesco Ltd.126,203$5.76M<0.01%-2,26213F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding114,313$5.21M-364,851Timeline
HRT FINANCIAL LP111,838$5.1M0.02%new13F-HRTimeline
PDT Partners, LLC110,386$5.03M0.32%-21,96313F-HRTimeline
Teton Advisors, LLC110,000$5.02M3.09%13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC101,553$4.63M0.01%-46,19013F-HRTimelineGroup
RBF Capital, LLC100,372$4.58M0.21%013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND95,413$4.35M0.01%013F-HRTimeline
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …92,185$4.14M<0.01%new13F-HRTimelineGroup
Assenagon Asset Management S.A.84,656$3.86M0.01%+44,74713F-HRTimeline
Engineers Gate Manager LP75,628$3.45M0.04%+7,69813F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC73,496$3.35M<0.01%new13F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources72,425$3.35M<0.01%+28,17213F-HRTimelineGroup
WHITE PINE CAPITAL LLC72,001$3.28M0.94%-8913F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc71,866$3.28M<0.01%+75213F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding70,902$3.23M-143,342Timeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA67,632$3.08M<0.01%-807,06013F-HRTimelineGroup
Fisher Asset Management, LLC65,279$2.98M<0.01%-21,02213F-HRTimeline
RHUMBLINE ADVISERS61,985$2.83M<0.01%-79913F-HRTimeline
GAMCO Investors (Gabelli)group of 2 filers holding61,824$2.82M-11,300Timeline
Cubist Systematic Strategies, LLC61,816$2.82M0.04%-255,79113F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO58,989$2.69M<0.01%-344,36513F-HR/ATimelineGroup
POLEN CAPITAL MANAGEMENT LLC53,993$2.46M0.01%+4,20213F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD53,521$2.44M0.01%+22,76413F-HRTimeline
CAXTON ASSOCIATES LLP53,247$2.43M0.07%+5,71613F-HRTimeline
Swiss National Bank50,800$2.32M<0.01%+1,10013F-HRTimeline
Verition Fund Management LLC50,080$2.28M0.01%-35,96713F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding48,460$2.21M+42,839Timeline
KENNEDY CAPITAL MANAGEMENT LLC48,093$2.19M0.05%-28,98913F-HRTimeline
Jain Global LLC45,100$2.06M0.03%new13F-HRTimeline
Hennion & Walsh Asset Management, Inc.44,166$2.01M0.07%+19,02913F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC43,084$1.97M<0.01%-15,21913F-HR/ATimelineGroup
MARTINGALE ASSET MANAGEMENT L P41,127$1.88M0.05%+51113F-HRTimeline
ALTA FOX CAPITAL MANAGEMENT, LLC41,048$1.87M0.42%-34,20013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.40,134$1.83M<0.01%-19813F-HRTimelineGroup
Skylands Capital, LLC39,400$1.8M0.25%-11,00013F-HRTimeline
GLOBEFLEX CAPITAL L P35,628$1.62M0.25%+2,12713F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/34,912$1.59M<0.01%-648,83613F-HR/ATimelineGroup
Y-Intercept (Hong Kong) Ltd33,061$1.51M0.04%+14,16013F-HRTimeline
Gotham Asset Management, LLC31,468$1.44M0.01%-15,93113F-HRTimeline
ZACKS INVESTMENT MANAGEMENT31,467$1.44M0.01%-58213F-HRTimeline
ALLIANCEBERNSTEIN L.P.30,050$1.37M<0.01%013F-HRTimeline
IRONWOOD INVESTMENT MANAGEMENT LLC29,866$1.36M0.59%-30013F-HRTimeline
Qube Research & Technologies Ltd29,635$1.35M<0.01%-143,56413F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…25,894$1.18M<0.01%+213F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC25,579$1.17M<0.01%+8,53413F-HRTimeline
Creative Planningin group Creative Planning24,331$1.11M<0.01%+5,70713F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO23,619$1.08M<0.01%-8,41313F-HRTimelineGroup
Wealthspire Advisors, LLC23,094$1.05M0.01%+10,21613F-HRTimeline
PANAGORA ASSET MANAGEMENT INC22,732$1.04M<0.01%new13F-HRTimeline
CAPTRUST FINANCIAL ADVISORS22,720$1.04M<0.01%+3,50013F-HRTimeline
Linden Advisors LPin group Linden Advisors LP21,746$992K0.01%new13F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding21,621$986K-20,730Timeline
Ellsworth Advisors, LLC18,718$918K0.2%new13F-HRTimeline
Aquatic Capital Management LLC19,857$906K0.02%-12,61813F-HRTimeline
NewEdge Advisors, LLC19,207$876K<0.01%+9,33613F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN19,193$875K<0.01%+2,38713F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC18,564$847K<0.01%-11,17013F-HRTimelineGroup
Diametric Capital, LP18,122$827K0.31%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…17,465$797K<0.01%new13F-HRTimelineGroup
VIRGINIA RETIREMENT SYSTEMS ET Al17,400$794K0.01%+6,30013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd17,325$790K0.04%-3,00813F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP17,070$779K<0.01%+98213F-HRTimelineGroup
Shay Capital LLC16,800$766K0.14%new13F-HRTimeline
IEQ CAPITAL, LLC16,749$764K<0.01%-63513F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/16,467$752K<0.01%+1,41513F-HRTimeline
HUNTER ASSOCIATES INVESTMENT MANAGEMENT…16,435$750K0.1%+6,43513F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …15,133$690K<0.01%+4,15013F-HRTimelineGroup
Arax Advisory Partners14,989$684K0.01%new13F-HRTimeline
Empirical Asset Management, LLC14,625$667K0.19%new13F-HRTimeline
PIER 88 INVESTMENT PARTNERS LLC14,430$658K0.12%new13F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…13,999$638K<0.01%-2,72713F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson13,400$612K<0.01%013F-HRTimelineGroup
EQUITABLE TRUST CO13,340$608K0.03%+2,94513F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC12,283$560K<0.01%+4,89313F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…12,053$550K0.01%new13F-HRTimelineGroup
CWM, LLCin group CWM, LLC11,271$514K<0.01%+4,12913F-HRTimelineGroup
Counterpoint Mutual Funds LLC11,215$512K0.04%-89513F-HRTimeline
ExodusPoint Capital Management, LP10,625$485K0.01%-85,89613F-HRTimeline
Numerai GP LLC10,602$484K0.07%-15,10513F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC10,548$481K<0.01%-7,33613F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC10,416$475K0.04%-46,12113F-HRTimeline
Bristlecone Advisors, LLC10,280$469K0.04%013F-HRTimeline
Aigen Investment Management, LP9,278$423K0.07%new13F-HRTimeline
LPL Financial LLC9,174$418K<0.01%-54813F-HRTimeline
MARK SHEPTOFF FINANCIAL PLANNING, LLC8,950$408K0.2%+50013F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd8,644$394K0.01%+38313F-HRTimelineGroup
ARCADIA INVESTMENT MANAGEMENT CORP/MI8,451$385K0.06%013F-HRTimeline
Police & Firemen's Retirement System of…8,383$382K<0.01%+1,36513F-HRTimeline
AXQ CAPITAL, LP8,064$368K0.14%new13F-HRTimeline
RiverPark Advisors, LLCin group RiverPark Advisors, LLC7,987$364K0.16%-2,28013F-HRTimelineGroup
First Bank & Trust7,853$358K0.06%+17913F-HRTimeline
DekaBank Deutsche Girozentrale8,146$358K<0.01%013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM7,730$353K<0.01%+13513F-HRTimeline
AlphaQuest LLC7,698$351K0.02%new13F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…7,441$339K<0.01%013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…7,029$336K<0.01%-93513F-HRTimeline
Verdence Capital Advisors LLC6,552$332K0.02%013F-HRTimeline
DDD Partners, LLC7,097$324K0.02%013F-HRTimeline
BRIGHTON JONES LLC7,085$323K0.01%+21613F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC6,677$305K<0.01%-154,34213F-HR/ATimelineGroup
Cetera Investment Advisers6,662$304K<0.01%new13F-HRTimeline
Elyxium Wealth, LLC6,250$285K0.1%013F-HRTimeline
Empower Advisory Group, LLCin group Empower Annuity Insurance Co …6,219$284K<0.01%013F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL6,119$279K<0.01%-207,09013F-HR/ATimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC6,202$277K<0.01%new13F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC5,964$272K<0.01%-200,64713F-HRTimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC5,929$270K<0.01%new13F-HRTimeline
PFG Investments, LLC5,865$268K0.01%new13F-HRTimeline
West Branch Capital LLC5,700$260K0.07%013F-HRTimeline
Quantinno Capital Management LP5,631$257K<0.01%new13F-HRTimeline
Campbell & CO Investment Adviser LLC5,607$256K0.02%new13F-HRTimeline
Mariner, LLCin group Mariner, LLC5,510$251K<0.01%new13F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC5,467$249K<0.01%-7,88213F-HRTimelineGroup
Quantbot Technologies LP5,461$249K0.01%-67,53613F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…5,228$238K<0.01%013F-HRTimeline
KLP KAPITALFORVALTNING AS5,200$237K<0.01%+60013F-HRTimeline
ProShare Advisors LLC5,176$236K<0.01%-1,03113F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…5,106$233K<0.01%-29813F-HRTimeline
TWO SIGMA SECURITIES, LLC4,935$225K0.03%new13F-HRTimeline
GWN SECURITIES INC.4,723$216K0.05%new13F-HRTimeline
TradeLink Capital LLC4,578$209K1.5%new13F-HRTimeline
Cambridge Investment Research Advisors,…4,541$207K<0.01%new13F-HRTimeline
ARS Investment Partners, LLC4,482$204K0.01%new13F-HRTimeline
State of Wyoming4,196$191K0.02%new13F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co3,945$174K<0.01%013F-HRTimelineGroup
USA FINANCIAL FORMULAS3,047$139K0.02%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…2,928$134K<0.01%-1,64013F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.2,826$118K<0.01%+53213F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…2,529$115K<0.01%-56213F-HRTimelineGroup
FMR LLCin group FMR LLC2,368$108K<0.01%-16513F-HRTimelineGroup
State of Alaska, Department of Revenue1,785$81K<0.01%new13F-HRTimeline
Tripletail Wealth Management, LLC1,330$64.5K0.08%new13F-HRTimeline
MCF Advisors LLC1,392$63.5K<0.01%-9913F-HRTimeline
Advisory Services Network, LLC1,262$57.6K<0.01%new13F-HRTimeline
HAZLETT, BURT & WATSON, INC.1,225$56K0.02%+87513F-HRTimeline
Covestor Ltd1,068$49K0.03%+21613F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…967$44.1K<0.01%-4,20813F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\966$44.1K<0.01%+28113F-HRTimelineGroup
AMALGAMATED BANK973$44K<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…949$43.3K<0.01%+5513F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP752$33.6K<0.01%+47013F-HRTimelineGroup
SIGNATUREFD, LLC732$33.4K<0.01%013F-HRTimeline
IFP Advisors, Inc564$25.7K<0.01%+44913F-HR/ATimeline
Leonteq Securities AG545$24.9K<0.01%+1513F-HRTimeline
DANSKE BANK A/S500$22.8K<0.01%013F-HR/ATimeline
GAMMA Investing LLC471$21.5K<0.01%+26313F-HRTimeline
Quarry LP425$19.4K<0.01%-1,68213F-HRTimeline
NISA INVESTMENT ADVISORS, LLC422$19.2K<0.01%013F-HRTimeline
Cullen/Frost Bankers, Inc.in group Cullen/Frost Bankers, Inc.391$17.8K<0.01%+1513F-HRTimelineGroup
Allworth Financial LP336$15.3K<0.01%+15413F-HRTimeline
Versant Capital Management, Inc333$15.2K<0.01%-14413F-HRTimeline
Essential Partners LLC324$14.8K<0.01%+8813F-HRTimeline