State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s Adtran ADTN Stock Holding History

State of Wisconsin Investment Board’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 		$2.68M Sell
192,528
-57,178
-23% -$892K 0.01% 1363
2026
Q1 		$3.14M Sell
249,706
-20,883
-8% -$212K 0.01% 1176
2025
Q4 		$2.35M Buy
270,589
+19,031
+8% +$165K 0.01% 1354
2025
Q3 		$2.36M Buy
251,558
+20,452
+9% +$191K 0.01% 1299
2025
Q2 		$2.07M Buy
231,106
+194,043
+524% +$1.55M 0.01% 1287
2025
Q1 		$323K Buy
+37,063
New +$373K ﹤0.01% 1940
2024
Q1 		– Sell
-76,687
Closed -$563K – 2217
2023
Q4 		$563K Buy
76,687
+18,078
+31% +$119K ﹤0.01% 1661
2023
Q3 		$482K Sell
58,609
-27,232
-32% -$242K ﹤0.01% 1795
2023
Q2 		$904K Sell
85,841
-4,886
-5% -$48.5K ﹤0.01% 1490
2023
Q1 		$1.44M Sell
90,727
-8,989
-9% -$156K ﹤0.01% 1386
2022
Q4 		$1.87M Sell
99,716
-6,336
-6% -$127K 0.01% 1335
2022
Q3 		$2.08M Buy
106,052
+11,989
+13% +$262K 0.01% 1329
2022
Q2 		$1.65M Sell
94,063
-69,837
-43% -$1.26M ﹤0.01% 1417
2022
Q1 		$3.02M Hold
163,900
– – 0.01% 1354
2021
Q4 		$3.74M Hold
163,900
– – 0.01% 1119
2021
Q3 		$3.08M Hold
163,900
– – 0.01% 1180
2021
Q2 		$3.38M Hold
163,900
– – 0.01% 1161
2021
Q1 		$2.73M Buy
+163,900
New +$2.76M 0.01% 1169

Other funds holding ADTN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
RA
Royce & Associates New York $12.4B AUM 64.17% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
DnB Asset Management
DnB Asset Management Oslo, Norway $35.7B AUM 27.58% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

State of Wisconsin Investment Board's ADTN Position: Q2 2026 in Review

State of Wisconsin Investment Board reduced its Adtran (ADTN) stake by 23% in Q2 2026, selling an estimated $892K and leaving 192,528 shares worth $2.68M. The position accounts for 0.01% of the portfolio, ranked #1363.

State of Wisconsin Investment Board first reported a position in ADTN in Q1 2021 and has held it in 18 quarters since. The position peaked at $3.74M in Q4 2021. 249 funds tracked by Wall St. Rank hold ADTN as of Q2 2026.

  • State of Wisconsin Investment Board held 192,528 shares of Adtran worth $2.68M as of Q2 2026.
  • State of Wisconsin Investment Board sold 57,178 Adtran shares in Q2 2026, an estimated $892K.
  • Adtran made up 0.01% of State of Wisconsin Investment Board's portfolio in Q2 2026, its #1363 holding.
  • State of Wisconsin Investment Board first reported a position in Adtran in Q1 2021 and has held it in 18 quarters since.
  • State of Wisconsin Investment Board's Adtran position peaked at $3.74M in Q4 2021.
  • 249 funds tracked by Wall St. Rank held Adtran as of Q2 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q2 2026, filed 14 Aug 2026.