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Portolan Capital Management’s Applied Optoelectronics AAOI Stock Holding History

Portolan Capital Management’s Portfolio AAOI Stock Details AAOI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.77M Sell
11,966
-17,867
-60% -$2.9M 0.07% 136
2026
Q1 		$2.52M Sell
29,833
-198,625
-87% -$12.7M 0.13% 120
2025
Q4 		$7.96M Sell
228,458
-317,761
-58% -$9.49M 0.43% 81
2025
Q3 		$14.2M Buy
546,219
+90,897
+20% +$2.32M 0.77% 43
2025
Q2 		$11.7M Buy
+455,322
New +$7.37M 0.73% 45
2025
Q1 		– Sell
-336,907
Closed -$12.4M – 110
2024
Q4 		$12.4M Sell
336,907
-321,685
-49% -$8.66M 0.84% 40
2024
Q3 		$9.42M Sell
658,592
-182,467
-22% -$1.89M 0.68% 53
2024
Q2 		$6.97M Sell
841,059
-593,841
-41% -$6.53M 0.57% 63
2024
Q1 		$19.9M Sell
1,434,900
-104,183
-7% -$1.76M 1.51% 18
2023
Q4 		$29.7M Buy
1,539,083
+491,484
+47% +$6.42M 2.6% 6
2023
Q3 		$11.5M Sell
1,047,599
-167,390
-14% -$1.78M 1.07% 26
2023
Q2 		$7.24M Buy
+1,214,989
New +$3.19M 0.64% 47
2017
Q4 		– Sell
-13,261
Closed -$858K – 117
2017
Q3 		$858K Sell
13,261
-25,228
-66% -$1.78M 0.1% 106
2017
Q2 		$2.38M Sell
38,489
-21,120
-35% -$1.23M 0.31% 89
2017
Q1 		$3.35M Sell
59,609
-4,985
-8% -$197K 0.43% 85
2016
Q4 		$1.51M Sell
64,594
-61,102
-49% -$1.42M 0.2% 110
2016
Q3 		$2.79M Sell
125,696
-228,784
-65% -$3.54M 0.38% 77
2016
Q2 		$3.95M Sell
354,480
-187,199
-35% -$2.12M 0.57% 67
2016
Q1 		$8.08M Buy
541,679
+104,920
+24% +$1.67M 1.08% 29
2015
Q4 		$7.5M Buy
436,759
+273,670
+168% +$4.97M 0.95% 30
2015
Q3 		$3.06M Buy
+163,089
New +$3.18M 0.41% 87
2014
Q4 		– Sell
-307,350
Closed -$4.95M – 109
2014
Q3 		$4.95M Buy
307,350
+33,620
+12% +$667K 1.12% 32
2014
Q2 		$6.35M Buy
273,730
+219,047
+401% +$4.7M 1.39% 22
2014
Q1 		$1.35M Buy
+54,683
New +$1.02M 0.31% 99

Other funds holding AAOI

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
MG
Marex Group London $23.6B AUM 57.16% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
OAM
Oberweis Asset Management Lisle, Illinois $4.84B AUM 160.95% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
VARA
Value Aligned Research Advisors Princeton, New Jersey $40.1B AUM 376.19% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Portolan Capital Management's AAOI Position: Q2 2026 in Review

Portolan Capital Management reduced its Applied Optoelectronics (AAOI) stake by 60% in Q2 2026, selling an estimated $2.9M and leaving 11,966 shares worth $1.77M. The position accounts for 0.07% of the portfolio, ranked #136.

Portolan Capital Management first reported a position in AAOI in Q1 2014 and has held it in 24 quarters since. The position peaked at $29.7M in Q4 2023. 482 funds tracked by Wall St. Rank hold AAOI as of Q2 2026.

  • Portolan Capital Management held 11,966 shares of Applied Optoelectronics worth $1.77M as of Q2 2026.
  • Portolan Capital Management sold 17,867 Applied Optoelectronics shares in Q2 2026, an estimated $2.9M.
  • Applied Optoelectronics made up 0.07% of Portolan Capital Management's portfolio in Q2 2026, its #136 holding.
  • Portolan Capital Management first reported a position in Applied Optoelectronics in Q1 2014 and has held it in 24 quarters since.
  • Portolan Capital Management's Applied Optoelectronics position peaked at $29.7M in Q4 2023.
  • 482 funds tracked by Wall St. Rank held Applied Optoelectronics as of Q2 2026.

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