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Anterix Inc.

ATEX
Exchange
Nasdaq
Industry
Telephone Communications (No Radiotelephone)
SEC CIK
0001304492

In the last 90 days, Anterix Inc. insiders filed 0 open-market purchases and 10 sales; 171 institutions reported holding it in 13F filings for Q2 2026, worth $1.97B in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in Anterix Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
117
+6 vs. Q3 2025
Shares held
16.2M
+213.1K (+1.3%) vs. Q3 2025
Total value
$353.3M
+$12.1M (+3.5%) vs. Q3 2025
New holders
25
36 more added
Sold out
19
42 more reduced

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ATEX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 117 institutions
Q1 2021: 97 institutionsQ2 2021: 107 institutionsQ3 2021: 108 institutionsQ4 2021: 108 institutionsQ1 2022: 109 institutionsQ2 2022: 95 institutionsQ3 2022: 100 institutionsQ4 2022: 92 institutionsQ1 2023: 88 institutionsQ2 2023: 95 institutionsQ3 2023: 98 institutionsQ4 2023: 93 institutionsQ1 2024: 98 institutionsQ2 2024: 115 institutionsQ3 2024: 129 institutionsQ4 2024: 116 institutionsQ1 2025: 130 institutionsQ2 2025: 112 institutionsQ3 2025: 111 institutionsQ4 2025: 117 institutionsQ1 2026: 132 institutionsQ2 2026: 171 institutions
Value heldQ4 2025: $353.3M
Q1 2021: $731.0MQ2 2021: $912.0MQ3 2021: $920.4MQ4 2021: $892.1MQ1 2022: $881.6MQ2 2022: $620.9MQ3 2022: $567.4MQ4 2022: $503.6MQ1 2023: $515.5MQ2 2023: $491.3MQ3 2023: $472.2MQ4 2023: $492.4MQ1 2024: $493.3MQ2 2024: $593.3MQ3 2024: $593.7MQ4 2024: $490.5MQ1 2025: $598.6MQ2 2025: $431.0MQ3 2025: $341.2MQ4 2025: $353.3MQ1 2026: $646.5MQ2 2026: $1.97B
Institutions holding ATEX and their total value by quarter
QuarterHoldersValue
Q2 2026171$1.97B
Q1 2026132$646.5M
Q4 2025117$353.3M
Q3 2025111$341.2M
Q2 2025112$431.0M
Q1 2025130$598.6M
Q4 2024116$490.5M
Q3 2024129$593.7M
Q2 2024115$593.3M
Q1 202498$493.3M
Q4 202393$492.4M
Q3 202398$472.2M
Q2 202395$491.3M
Q1 202388$515.5M
Q4 202292$503.6M
Q3 2022100$567.4M
Q2 202295$620.9M
Q1 2022109$881.6M
Q4 2021108$892.1M
Q3 2021108$920.4M
Q2 2021107$912.0M
Q1 202197$731.0M

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding Anterix Inc.; share changes are against Q3 2025.

Institutions holding ATEX in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Hughes Financial Services, LLC2$440.00%−21−91.3%Reduced
Transamerica Financial Advisors, Inc.3$650.00%+3New
EverSource Wealth Advisors, LLC4$870.00%−49−92.5%Reduced
GAMMA Investing LLC7$1530.00%−2−22.2%Reduced
Global Retirement Partners, LLC9$1960.00%+9New
Essential Partners LLC11$2400.00%−23−67.6%Reduced
Trust Co12$2620.00%+12New
UBS Asset Management Americas Inc13$2840.00%+13New
Federated Hermes, Inc.19$4150.00%−31−62.0%Reduced
Ronald Blue Trust, Inc.27$5890.00%00.0%Unchanged
Massmutual Trust Co FSB37$8080.00%+37New
WPG Advisers, LLC55$1.20K0.00%00.0%Unchanged
Sterling Capital Management LLC73$1.59K0.00%+46+170.4%Added
SRS Capital Advisors, Inc.89$1.94K0.00%−294−76.8%Reduced
US Bancorp114$2.49K0.00%−174−60.4%Reduced
Farther Finance Advisors, LLC123$2.69K0.00%−11−8.2%Reduced
Optiver Holding B.V.124$2.71K0.00%00.0%Unchanged
Los Angeles Capital Management LLC141$2.76K0.00%+141New
Advisor Group Holdings, Inc.167$3.65K0.00%−2−1.2%Reduced
Private Wealth Management Group, LLC185$4.04K0.00%+185New
Quarry LP188$4.10K0.00%+188New
The PNC Financial Services Group, Inc.193$4.21K0.00%+160+484.8%Added
Allworth Financial LP197$4.30K0.00%+138+233.9%Added
Nisa Investment Advisors, LLC203$4.43K0.00%00.0%Unchanged
Signaturefd, LLC250$5.46K0.00%+106+73.6%Added
Pinnacle Wealth Planning Services, Inc.304$6.64K0.00%+304New
CWM, LLC322$7.00K0.00%−492−60.4%Reduced
Amalgamated Bank354$8.00K0.00%−82−18.8%Reduced
Parallel Advisors, LLC570$12.4K0.00%+517+975.5%Added
Tower Research Capital LLC (TRC)608$13.3K0.00%−442−42.1%Reduced
Citigroup Inc628$13.7K0.00%−679−52.0%Reduced
California State Teachers Retirement System693$15.1K0.00%−117−14.4%Reduced
Ameritas Investment Partners, Inc.1,033$22.6K0.00%00.0%Unchanged
Royal Bank of Canada1,208$26.0K0.00%−19,203−94.1%Reduced
Russell Investments Group, Ltd.1,284$28.0K0.00%−874−40.5%Reduced
BNP Paribas Arbitrage, SA2,491$54.4K0.00%+237+10.5%Added
Legal & General Group Plc2,553$55.7K0.00%−46−1.8%Reduced
New York State Common Retirement Fund2,709$59.1K0.00%00.0%Unchanged
Police & Firemen's Retirement System of New Jersey3,069$67.0K0.00%00.0%Unchanged
Virtus ETF Advisers LLC3,500$76.4K0.04%00.0%Unchanged
Deutsche Bank AG4,289$93.6K0.00%−9,320−68.5%Reduced
Toronto Dominion Bank4,300$93.9K0.00%+4,300New
JPMorgan Chase & Co4,673$102.0K0.00%−320−6.4%Reduced
Mirae Asset Global ETFs Holdings Ltd.5,214$113.8K0.00%−21−0.4%Reduced
Central Pacific Bank - Trust Division6,000$131.0K0.02%00.0%Unchanged
Group One Trading, L.P.6,175$134.8K0.00%+4,661+307.9%Added
MetLife Investment Management6,747$147.3K0.00%−952−12.4%Reduced
Aquatic Capital Management LLC8,675$189.4K0.01%+8,675New
Quest Partners LLC8,802$192.1K0.01%+3,367+62.0%Added
Quantinno Capital Management LP9,487$207.1K0.00%+9,487New
Caption Management, LLC10,493$229.1K0.01%+10,493New
Covestor Ltd12,031$263.0K0.14%+2,508+26.3%Added
Wells Fargo & Company12,372$270.1K0.00%+5,401+77.5%Added
Verition Fund Management LLC12,600$275.1K0.00%+12,600New
Jefferson Bridge Capital, LLC12,950$282.7K0.28%+12,950New
Marble Bar Asset Management LLP13,266$289.6K6.71%+13,266New
IMC-Chicago, LLC13,377$292.0K0.01%+13,377New
XTX Topco Ltd14,255$311.2K0.01%+14,255New
Rhumbline Advisers14,918$325.7K0.00%−2,863−16.1%Reduced
EntryPoint Capital, LLC15,012$327.7K0.13%−4,213−21.9%Reduced
Alliancebernstein L.P.15,430$336.8K0.00%+2,200+16.6%Added
Woodmont Investment Counsel LLC17,316$378.0K0.02%−36−0.2%Reduced
Balyasny Asset Management LLC17,740$387.3K0.00%−75,536−81.0%Reduced
State of Wisconsin Investment Board18,432$402.4K0.00%+18,432New
Barclays PLC18,789$410.2K0.00%+2,388+14.6%Added
Proficio Capital Partners LLC20,000$436.6K0.03%−7,340−26.8%Reduced
Sandia Investment Management LP20,000$436.6K1.09%−7,340−26.8%Reduced
DG Capital Management, LLC21,245$463.8K0.37%−723,299−97.1%Reduced
Simplex Trading, LLC22,550$492.3K0.01%+19,582+659.8%Added
STRS Ohio26,500$578.5K0.00%+15,100+132.5%Added
Campbell & CO Investment Adviser LLC27,505$600.4K0.03%+6,705+32.2%Added
Susquehanna International Group, LLP28,743$627.5K0.00%+13,019+82.8%Added
Gabelli & Co Investment Advisers, Inc.30,650$669.1K0.10%−21,550−41.3%Reduced
Creative Planning30,779$671.9K0.00%−12,915−29.6%Reduced
Arrowstreet Capital, Limited Partnership33,401$729.1K0.00%+33,401New
HRT Financial LP43,090$940.0K0.00%−19,043−30.6%Reduced
Trexquant Investment LP46,398$1.01M0.01%+6,412+16.0%Added
SG Americas Securities, LLC48,509$1.06M0.00%+48,509New
UBS Group AG48,787$1.07M0.00%+3,166+6.9%Added
Schonfeld Strategic Advisors LLC49,462$1.08M0.01%00.0%Unchanged
FMR LLC51,044$1.11M0.00%−236,745−82.3%Reduced
Waterfront Wealth Inc.48,627$1.15M0.22%+48,627New
Teton Advisors, LLC53,000$1.16M0.80%−5,000−8.6%Reduced
Squarepoint Ops LLC53,117$1.16M0.00%+33,656+172.9%Added
Nuveen, LLC53,155$1.16M0.00%+30,420+133.8%Added
D. E. Shaw & Co., Inc.61,765$1.35M0.00%−69,310−52.9%Reduced
Bank of New York Mellon Corp68,792$1.50M0.00%+29,185+73.7%Added
Gsa Capital Partners LLP72,976$1.59M0.14%+13,324+22.3%Added
Atom Investors LP83,085$1.81M0.14%+55,097+196.9%Added
Man Group plc100,145$2.19M0.00%+24,431+32.3%Added
Kirr Marbach & Co LLC100,418$2.19M0.42%+3,569+3.7%Added
Citadel Advisors LLC108,380$2.37M0.00%−2,714−2.4%Reduced
Morgan Stanley109,445$2.39M0.00%+37,002+51.1%Added
Northern Trust Corp114,262$2.49M0.00%−2,743−2.3%Reduced
Goldman Sachs Group Inc124,630$2.72M0.00%−38,822−23.8%Reduced
Qube Research & Technologies Ltd124,646$2.72M0.00%−78,943−38.8%Reduced
Tudor Investment Corp Et Al124,943$2.73M0.01%−3,738−2.9%Reduced
Charles Schwab Investment Management Inc138,677$3.03M0.00%+599+0.4%Added
Bank of America Corp143,124$3.12M0.00%+6,635+4.9%Added
Beartown Capital Management, LLC145,000$3.17M2.48%+145,000New