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Anterix Inc (ATEX)

CUSIP: 03676C100 | NYSE | Communication Services · Telecom Services | Small Cap | 396 institutional holders

Quarters

Q3 2026Q2 2026Q1 2026Q4 2025Q3 2025
CompareDetailedHistoricalFundsOptions13D/13GPeersTargetingTrading SummaryProfile

Beneficial Ownership — 13D / 13G

Full history →

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13G/ABlackRock, Inc.914,3724.7%−84,906Sep 30, 20261,075,115 sh (Jun 30, 2026)
13G/ABlackRock, Inc.914,372
4.7% of class · Sep 30, 2026−84,906
1,075,115 sh (Jun 30, 2026)

Institutional Holders — Q3 2026

Dimensional Fund Advisors LP396,148
0.0% of portfolio›$31.1M
Kirr Marbach & Co LLC116,554
1.7% of portfolio›$9.1M
Bank of New York Mellon Corp69,553
0.0% of portfolio›$5.5M
Creative Planning34,978
0.0% of portfolio›$2.7M
Principal Financial Group Inc23,132
0.0% of portfolio›$1.8M
Hanseatic Management Services Inc18,812
1.2% of portfolio›$1.5M
CenterBook Partners LP18,242
0.1% of portfolio›$1.4M
Woodmont Investment Counsel LLC16,973
0.1% of portfolio›$1.3M
Moody Aldrich Partners LLC14,797
0.2% of portfolio›$1.2M
Inspire Investing, LLC9,487
0.0% of portfolio›$744.8K
Fulcrum Asset Management LLP9,166
0.0% of portfolio›$724.5K
Waterfront Wealth Inc.9,085
0.1% of portfolio›$723.2K
Covestor Ltd6,622
1.0% of portfolio›$520.0K
Central Pacific Bank - Trust Division6,000
0.0% of portfolio›$471.0K
Citigroup Inc5,423
0.0% of portfolio›$425.7K
Arizona State Retirement System3,020
0.0% of portfolio›$237.1K
Simplex Trading, LLC2,839
0.0% of portfolio›$222.9K
Commonwealth Equity Services, LLC2,700
0.0% of portfolio›$212.0K
Fifth Third Bancorp1,692
0.0% of portfolio›$132.8K
Parallel Advisors, LLC957
0.0% of portfolio›$75.1K
Caitong International Asset Management Co., Ltd697
0.0% of portfolio›$54.7K
Pinnacle Wealth Planning Services, Inc.612
0.0% of portfolio›$48.0K
US Bancorp \de\563
0.0% of portfolio›$44.2K
IFP Advisors, Inc507
0.0% of portfolio›$39.8K
Nisa Investment Advisors, LLC494
0.0% of portfolio›$38.8K
Signaturefd, LLC450
0.0% of portfolio›$35.3K
Versant Capital Management, Inc405
0.0% of portfolio›$31.8K
Sterling Capital Management LLC380
0.0% of portfolio›$29.8K
State of Wyoming338
0.0% of portfolio›$26.5K
EverSource Wealth Advisors, LLC262
0.0% of portfolio›$20.6K
Private Wealth Management Group, LLC185
0.0% of portfolio›$14.5K
Blue Bell Private Wealth Management, LLC131
0.0% of portfolio›$10.3K
Farther Finance Advisors, LLC125
0.0% of portfolio›$9.8K
Gamma Investing LLC123
0.0% of portfolio›$9.7K
SJS Investment Consulting Inc.65
0.0% of portfolio›$5.1K
WPG Advisers, LLC55
0.0% of portfolio›$4.3K
Root Financial Partners, LLC55
0.0% of portfolio›$4.3K
Silver Grove Financial Group, Inc.52
0.0% of portfolio›$4.1K
Bell Investment Advisors, Inc49
0.0% of portfolio›$3.8K
MassMutual Private Wealth & Trust, FSB40
0.0% of portfolio›$3.1K
Blue Trust, Inc.27
0.0% of portfolio›$2.1K
North Star Investment Management Corp.22
0.0% of portfolio›$1.7K
Fortitude Family Office, LLC20
0.0% of portfolio›$1.6K
Essential Partners LLC16
0.0% of portfolio›$1.3K
Trust Co12
0.0% of portfolio›$942
Hughes Financial Services, LLC5
0.0% of portfolio›$459
SBI Securities Co., Ltd.1
0.0% of portfolio›$79
StyleTurnoverLocationFiled
Dimensional Fund Advisors LP
396,148$31.1M0.0%IndexLowAustin, TX2026-11-04
Kirr Marbach & Co LLC
116,554$9.1M1.7%GARPLowColumbus, IN2026-10-20
Bank of New York Mellon Corp
69,553$5.5M0.0%CoreLowNew York, NY2026-11-05
Creative Planning
34,978$2.7M0.0%IndexVery LowOverland Park, KS2026-11-02
Principal Financial Group Inc
23,132$1.8M0.0%CoreLowDes Moines, IA2026-11-02
Hanseatic Management Services Inc
18,812$1.5M1.2%GrowthHighAlbuquerque, NM2026-10-27
CenterBook Partners LP
18,242$1.4M0.1%ValueVery HighGreenwich, CT2026-11-02
Woodmont Investment Counsel LLC
16,973$1.3M0.1%GARPVery LowNashville, TN2026-10-29
Moody Aldrich Partners LLC
14,797$1.2M0.2%ValueHighMarblehead, MA2026-10-27
Inspire Investing, LLC
9,487$744.8K0.0%GARPHighMeridian, ID2026-10-22
Fulcrum Asset Management LLP
9,166$724.5K0.0%CoreMediumLondon, United Kingdom2026-11-04
Waterfront Wealth Inc.
9,085$723.2K0.1%ValueLowOverland Park, KS2026-11-03
Covestor Ltd
6,622$520.0K1.0%ValueHighLondon, United Kingdom2026-10-30
Central Pacific Bank - Trust Division
6,000$471.0K0.0%CoreMediumHonolulu, HI2026-10-06
Citigroup Inc
5,423$425.7K0.0%CoreMediumNew York, NY2026-11-04
Arizona State Retirement System
3,020$237.1K0.0%IndexVery LowPhoenix, AZ2026-11-03
Simplex Trading, LLC
2,839$222.9K0.0%CoreVery HighChicago, IL2026-11-04
Commonwealth Equity Services, LLC
2,700$212.0K0.0%ETFLowWaltham, MA2026-11-02
Fifth Third Bancorp
1,692$132.8K0.0%IndexVery LowCincinnati, OH2026-11-05
Parallel Advisors, LLC
957$75.1K0.0%IndexLowSan Francisco, CA2026-11-03
Caitong International Asset Management Co., Ltd
697$54.7K0.0%GrowthVery HighHong Kong, South Korea2026-10-29
Pinnacle Wealth Planning Services, Inc.
612$48.0K0.0%GARPLowMansfield, OH2026-10-27
US Bancorp \de\
563$44.2K0.0%IndexLowMinneapolis, MN2026-11-05
IFP Advisors, Inc
507$39.8K0.0%GrowthLowTampa, FL2026-10-16
Nisa Investment Advisors, LLC
494$38.8K0.0%IndexVery LowSt. Louis, MO2026-10-20
Signaturefd, LLC
450$35.3K0.0%IndexLowAtlanta, GA2026-10-23
Versant Capital Management, Inc
405$31.8K0.0%GARPLowPhoenix, AZ2026-10-02
Sterling Capital Management LLC
380$29.8K0.0%GARPMediumCharlotte, NC2026-10-22
State of Wyoming
338$26.5K0.0%ValueHighCheyenne, WY2026-10-28
EverSource Wealth Advisors, LLC
262$20.6K0.0%CoreMediumBirmingham, AL2026-11-04
Private Wealth Management Group, LLC
185$14.5K0.0%ETFLowPrinceton, NJ2026-10-19
Blue Bell Private Wealth Management, LLC
131$10.3K0.0%YieldVery LowBlue Bell, PA2026-10-29
Farther Finance Advisors, LLC
125$9.8K0.0%IndexLowSan Francisco, CA2026-10-08
Gamma Investing LLC
123$9.7K0.0%IndexVery LowFoster City, CA2026-10-08
SJS Investment Consulting Inc.
65$5.1K0.0%ETFVery LowSylvania, OH2026-10-26
WPG Advisers, LLC
55$4.3K0.0%CoreLowBaltimore, MD2026-10-27
Root Financial Partners, LLC
55$4.3K0.0%ETFMediumEncinitas, CA2026-10-21
Silver Grove Financial Group, Inc.
52$4.1K0.0%CoreMediumOrchard Park, NY2026-11-05
Bell Investment Advisors, Inc
49$3.8K0.0%ETFVery LowOrinda, CA2026-10-29
MassMutual Private Wealth & Trust, FSB
40$3.1K0.0%CoreLowSpringfield, MA2026-10-05
Blue Trust, Inc.
27$2.1K0.0%ETFLowBrentwood, TN2026-10-15
North Star Investment Management Corp.
22$1.7K0.0%CoreLowChicago, IL2026-10-27
Fortitude Family Office, LLC
20$1.6K0.0%ETFMediumScottsdale, AZ2026-10-14
Essential Partners LLC
16$1.3K0.0%ValueMediumRancho Santa Fe, CA2026-10-14
Trust Co
12$9420.0%ETFVery LowManhattan, KS2026-10-09
Hughes Financial Services, LLC
5$4590.0%ETFLowHerndon, VA2026-10-30
SBI Securities Co., Ltd.
1$790.0%Agg GrowthLowTokyo, Mexico2026-10-22