PCM
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Polymer Capital Management’s Adtran ADTN Stock Holding History

Polymer Capital Management’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 		$1.41M Buy
+101,366
New +$1.58M 0.19% 150
2026
Q1 		– Sell
-10,363
Closed -$90.1K – 810
2025
Q4 		$90.1K Sell
10,363
-26,477
-72% -$230K 0.01% 727
2025
Q3 		$346K Buy
36,840
+12,300
+50% +$115K 0.04% 565
2025
Q2 		$220K Sell
24,540
-7,511
-23% -$59.9K 0.03% 518
2025
Q1 		$279K Buy
+32,051
New +$323K 0.07% 369

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

Polymer Capital Management's ADTN Position: Q2 2026 in Review

Polymer Capital Management opened a new position in Adtran (ADTN) in Q2 2026: 101,366 shares worth $1.41M. The stake represents 0.19% of the portfolio and ranks #150 among its holdings. This is a return to the name: Polymer Capital Management previously reported a position in ADTN as recently as Q4 2025.

Polymer Capital Management first reported a position in ADTN in Q1 2025 and has held it in 5 quarters since. 249 funds tracked by Wall St. Rank hold ADTN as of Q2 2026.

  • Polymer Capital Management held 101,366 shares of Adtran worth $1.41M as of Q2 2026.
  • Adtran was a new Polymer Capital Management position in Q2 2026.
  • Adtran made up 0.19% of Polymer Capital Management's portfolio in Q2 2026, its #150 holding.
  • Polymer Capital Management first reported a position in Adtran in Q1 2025 and has held it in 5 quarters since.
  • 249 funds tracked by Wall St. Rank held Adtran as of Q2 2026.

Based on Polymer Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.