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Equibles

ADTN

ADTRAN Holdings, Inc.

Company with tickers: ADTN

CIK
926282
CUSIP
00486H105
Shares Outstanding
80,998,100
13F Activity (30d)
89 filings 86 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 178
Total Value: $467,908,033
Total Shares: 37,194,605
Showing 1–100 of 181 holdings by value · page 1 of 2

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 178 13F filers
Top Holder
9.2%
Dec 2023 → Mar 2026 · range 9.2% – 20.4%
of institutional value
Top 5
33.6%
Dec 2023 → Mar 2026 · range 33.6% – 49.3%
of institutional value
Top 10
49.7%
Dec 2023 → Mar 2026 · range 49.7% – 64.9%
of institutional value
HHI
354
Dec 2023 → Mar 2026 · range 354 – 735
Broadly held

Quarterly Activity

vs Feb 2, 2026
New
178
Increased
0
Decreased
0
Sold Out
1
Unchanged
0
Holder count: +177
Institutional value: +1146.6%
Shares held: +828.5%

Top New Positions

vs Feb 2, 2026
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 3,426,230 $43,101,973
Large DNB Asset Management AS 3,123,679 $39,295,881
Mega STATE STREET CORP 2,350,737 $29,572,271
Mega GEODE CAPITAL MANAGEMENT, LLC 1,819,123 $22,884,567
Small Divisar Capital Management LLC 1,769,439 $22,259,542

Top Sold-Out Positions

vs Feb 2, 2026
Institution Previously Held Last Value (USD) Open
— EGORA Ventures AG (f/k/a EGORA Holding GmbH) 4,005,806 $37,534,402
Filter: New 178 Increased 0 Reduced 0 Sold out 1 Unchanged 0
Showing 100 of 181
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega VANGUARD CAPITAL MANAGEMENT LLC $43,101,973 9.21% 3,426,230
Large DNB Asset Management AS $39,295,881 8.40% 3,123,679
Mega STATE STREET CORP $29,572,271 6.32% 2,350,737
Mega GEODE CAPITAL MANAGEMENT, LLC $22,884,567 4.89% 1,819,123
Small Divisar Capital Management LLC $22,259,542 4.76% 1,769,439
Large SG Americas Securities, LLC Broker-Dealer $16,555,896 3.54% 1,316,049
Small Shannon River Fund Management LLC $15,347,298 3.28% 1,219,976
Mega D. E. Shaw & Co., Inc. $15,334,629 3.28% 1,218,969
Mega TWO SIGMA INVESTMENTS, LP $14,133,931 3.02% 1,123,524
Large SEI INVESTMENTS CO $13,902,283 2.97% 1,105,110
Large MARSHALL WACE, LLP $11,215,319 2.40% 891,520
Large Squarepoint Ops LLC $11,170,561 2.39% 887,962
Small WESTERLY CAPITAL MANAGEMENT, LLC $10,064,000 2.15% 800,000
Mid HEARTLAND ADVISORS INC $9,435,000 2.02% 750,000
Mid Kovack Advisors, Inc. $9,258,880 1.98% 736,000
Mid PARADIGM CAPITAL MANAGEMENT INC/NY $9,223,656 1.97% 733,200
Large Trexquant Investment LP $8,616,155 1.84% 684,909
Mega NORTHERN TRUST CORP Bank $8,293,338 1.77% 659,248
Large TUDOR INVESTMENT CORP ET AL $8,239,182 1.76% 654,943
Small 1492 Capital Management LLC $7,862,801 1.68% 625,024
Large HRT FINANCIAL LP $7,147,025 1.53% 568,126
Small Kerrisdale Advisers, LLC $6,944,285 1.48% 552,010
Mega VANGUARD FIDUCIARY TRUST CO Bank $6,573,427 1.40% 522,530
Large JACOBS LEVY EQUITY MANAGEMENT, INC $5,807,946 1.24% 461,681
Large Assenagon Asset Management S.A. $5,761,036 1.23% 457,952
Small Lisanti Capital Growth, LLC $4,239,019 0.91% 336,965
Mega Nuveen, LLC $4,216,676 0.90% 335,189
Small WHITE PINE CAPITAL LLC $3,703,162 0.79% 294,369
Mid CRAMER ROSENTHAL MCGLYNN LLC $3,612,699 0.77% 287,178
Large ExodusPoint Capital Management, LP $3,269,743 0.70% 259,916
Mega DEUTSCHE BANK AG\ Bank $3,253,904 0.70% 258,657
Small Manatuck Hill Partners, LLC $3,145,000 0.67% 250,000
Mid Skandinaviska Enskilda Banken AB (publ) $2,958,664 0.63% 235,188
Mid ALGERT GLOBAL LLC $2,870,252 0.61% 228,160
Mid Engineers Gate Manager LP $2,748,868 0.59% 218,511
Mega AMERICAN CENTURY COMPANIES INC $2,720,575 0.58% 216,262
Small HERALD INVESTMENT MANAGEMENT Ltd $2,516,000 0.54% 200,000
Mega RAYMOND JAMES FINANCIAL INC $2,415,296 0.52% 191,995
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $2,393,192 0.51% 190,238
Mid Inspire Investing, LLC $2,296,126 0.49% 182,522
Mega BNP PARIBAS ARBITRAGE, SA $2,148,274 0.46% 170,769
Large Walleye Trading LLC $1,948,591 0.42% 154,896
Large ACADIAN ASSET MANAGEMENT LLC $1,858,141 0.40% 147,706
Mid Brevan Howard Capital Management LP $1,814,211 0.39% 144,214
Mega Swiss National Bank Bank $1,793,908 0.38% 142,600
Small GLOBEFLEX CAPITAL L P $1,665,805 0.36% 132,417
Large Lido Advisors, LLC $1,626,971 0.35% 129,330
Mid LANDSCAPE CAPITAL MANAGEMENT, L.L.C. $1,610,264 0.34% 128,002
Mid Legato Capital Management LLC $1,548,598 0.33% 123,100
Mid OP Asset Management Ltd $1,451,404 0.31% 115,374
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,434,736 0.31% 114,049
Mid Jump Financial, LLC $1,331,794 0.28% 105,866
Mid OCCUDO QUANTITATIVE STRATEGIES LP $1,270,026 0.27% 100,956
Mega Legal & General Group Plc $1,264,112 0.27% 100,486
Mid SIMPLEX TRADING, LLC $1,227,619 0.26% 97,585
Mega HSBC HOLDINGS PLC $1,225,430 0.26% 97,411
Mega RHUMBLINE ADVISERS $1,174,833 0.25% 93,389
Small Nierenberg Investment Management Company, LLC $1,171,323 0.25% 93,110
Large HighTower Advisors, LLC $1,171,210 0.25% 93,101
Mid XTX Topco Ltd $1,130,124 0.24% 89,835
Large Creative Planning $1,088,396 0.23% 86,518
Micro Koesten, Hirschmann & Crabtree, INC. $1,067,463 0.23% 84,854
Mid SUSQUEHANNA ADVISORS GROUP, INC. $1,027,710 0.22% 81,694
Small Potomac Capital Management, Inc. $971,176 0.21% 77,200
Large POLEN CAPITAL MANAGEMENT LLC $952,155 0.20% 75,688
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $915,824 0.20% 72,800
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $906,049 0.19% 72,023
Large Tidal Investments LLC $904,502 0.19% 71,900
Mid Susquehanna Portfolio Strategies, LLC $825,738 0.18% 65,639
Mega Vanguard Global Advisers, LLC $792,980 0.17% 63,035
Small Numerai GP LLC $771,896 0.16% 61,359
Mid GSA CAPITAL PARTNERS LLP $740,421 0.16% 58,857
Mid Quantbot Technologies LP $714,544 0.15% 56,800
Large VOYA INVESTMENT MANAGEMENT LLC $713,323 0.15% 56,703
Small SYMMETRY PEAK MANAGEMENT LLC $683,094 0.15% 54,300
Large Man Group plc $681,471 0.15% 54,171
Mid PDT Partners, LLC $674,803 0.14% 53,641
Small EntryPoint Capital, LLC $672,350 0.14% 53,446
Large Zurcher Kantonalbank (Zurich Cantonalbank) Bank $663,670 0.14% 52,756
Large Quantinno Capital Management LP $659,883 0.14% 52,455
Mid Y-Intercept (Hong Kong) Ltd $655,405 0.14% 52,099
Micro Worth Venture Partners, LLC Venture Capital $615,262 0.13% 48,908
Mega VANGUARD ASSET MANAGEMENT, Ltd $585,599 0.13% 46,550
Small nVerses Capital, LLC $564,250 0.12% 44,853
Large MetLife Investment Management, LLC $513,729 0.11% 40,837
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $512,006 0.11% 40,700
Small Integrated Quantitative Investments LLC $482,858 0.10% 38,383
Mid Campbell & CO Investment Adviser LLC $482,115 0.10% 38,324
Mid QUADRANT CAPITAL GROUP LLC $449,231 0.10% 35,710
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $438,601 0.09% 34,865
Large IEQ CAPITAL, LLC $432,236 0.09% 34,359
Large VOLORIDGE INVESTMENT MANAGEMENT, LLC $426,927 0.09% 33,937
Small Counterpoint Mutual Funds LLC Mutual Fund $411,630 0.09% 32,721
Large Mariner, LLC $408,975 0.09% 32,510
Small VIRTUS ADVISERS, LLC $397,162 0.08% 31,571
Mid Granahan Investment Management, LLC $387,237 0.08% 30,782
Large PANAGORA ASSET MANAGEMENT INC $375,877 0.08% 29,879
Mid Waverly Advisors, LLC $375,877 0.08% 29,879
Mid GROUP ONE TRADING LLC $330,539 0.07% 26,275
Large Russell Investments Group, Ltd. $326,145 0.07% 25,926

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