Campbell & Co Investment Adviser’s Adtran ADTN Stock Holding History

Campbell & Co Investment Adviser’s Portfolio ADTN Stock Details ADTN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$468K	Sell	33,687 -4,637	-12%	-$72.4K	0.02%	788
2026 Q1	$482K	Buy	38,324 +7,592	+25%	+$76.9K	0.03%	766
2025 Q4	$267K	Buy	30,732 +12,683	+70%	+$110K	0.01%	1001
2025 Q3	$169K	Buy	+18,049	New	+$168K	0.01%	1021
2024 Q1	–	Sell	-69,117	Closed	-$507K	–	1073
2023 Q4	$507K	Buy	+69,117	New	+$456K	0.05%	703
2022 Q4	–	Sell	-17,430	Closed	-$341K	–	747
2022 Q3	$341K	Buy	+17,430	New	+$380K	0.08%	436
2019 Q1	–	Sell	-13,143	Closed	-$156K	–	499
2018 Q4	$156K	Buy	+13,143	New	+$179K	0.15%	290
2015 Q2	–	Sell	-65,493	Closed	-$1.22M	–	145
2015 Q1	$1.22M	Buy	+65,493	New	+$1.39M	0.77%	39

Other funds holding ADTN

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Royce & Associates New York $12.4B AUM 64.17% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

DnB Asset Management Oslo, Norway $35.7B AUM 27.58% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Campbell & Co Investment Adviser's ADTN Position: Q2 2026 in Review

Campbell & Co Investment Adviser reduced its Adtran (ADTN) stake by 12% in Q2 2026, selling an estimated $72.4K and leaving 33,687 shares worth $468K. The position accounts for 0.02% of the portfolio, ranked #788.

Campbell & Co Investment Adviser first reported a position in ADTN in Q1 2015 and has held it in 8 quarters since. The position peaked at $1.22M in Q1 2015. 249 funds tracked by Wall St. Rank hold ADTN as of Q2 2026.

Campbell & Co Investment Adviser held 33,687 shares of Adtran worth $468K as of Q2 2026.
Campbell & Co Investment Adviser sold 4,637 Adtran shares in Q2 2026, an estimated $72.4K.
Adtran made up 0.02% of Campbell & Co Investment Adviser's portfolio in Q2 2026, its #788 holding.
Campbell & Co Investment Adviser first reported a position in Adtran in Q1 2015 and has held it in 8 quarters since.
Campbell & Co Investment Adviser's Adtran position peaked at $1.22M in Q1 2015.
249 funds tracked by Wall St. Rank held Adtran as of Q2 2026.

Based on Campbell & Co Investment Adviser's 13F filing for Q2 2026, filed 3 Aug 2026.