Acadian Asset Management
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Acadian Asset Management’s Aspen Aerogels ASPN Stock Holding History

Acadian Asset Management’s Portfolio ASPN Stock Details ASPN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$4.34M Buy
+684,915
New +$3.36M 0.01% 848
2026
Q1 		– Sell
-43,842
Closed -$122K – 2019
2025
Q4 		$122K Buy
+43,842
New +$226K ﹤0.01% 1641
2025
Q2 		– Sell
-6,880
Closed -$43K – 1654
2025
Q1 		$43K Buy
+6,880
New +$66.3K ﹤0.01% 1456
2020
Q2 		– Sell
-11,122
Closed -$68K – 2217
2020
Q1 		$68K Buy
11,122
+6,521
+142% +$52.9K ﹤0.01% 1439
2019
Q4 		$36K Buy
+4,601
New +$31.8K ﹤0.01% 1649
2019
Q2 		– Sell
-9,517
Closed -$24K – 1782
2019
Q1 		$24K Buy
9,517
+3,554
+60% +$10.6K ﹤0.01% 1788
2018
Q4 		$13K Hold
5,963
– – ﹤0.01% 1589
2018
Q3 		$27K Sell
5,963
-10
-0.2% -$49 ﹤0.01% 1467
2018
Q2 		$29K Buy
5,973
+4,579
+328% +$21.7K ﹤0.01% 1489
2018
Q1 		$6K Buy
1,394
+677
+94% +$3.2K ﹤0.01% 1601
2017
Q4 		$3K Sell
717
-4,851
-87% -$22.6K ﹤0.01% 1514
2017
Q3 		$24K Buy
5,568
+5,558
+55,580% +$24.3K ﹤0.01% 1193
2017
Q2 		$0 Hold
10
– – ﹤0.01% 1434
2017
Q1 		$0 Hold
10
– – ﹤0.01% 1558
2016
Q4 		$0 Sell
10
-23,353
-100% -$114K ﹤0.01% 1632
2016
Q3 		$139K Sell
23,363
-5,016
-18% -$25.3K ﹤0.01% 1020
2016
Q2 		$141K Sell
28,379
-13,606
-32% -$59.6K ﹤0.01% 980
2016
Q1 		$189K Sell
41,985
-4,722
-10% -$21.4K ﹤0.01% 929
2015
Q4 		$284K Buy
+46,707
New +$323K ﹤0.01% 903

Other funds holding ASPN

KL
KIM LLC Wichita, Kansas $1B AUM 29.68% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
OCMI
Oaktop Capital Management II Chatham, New Jersey $2.35B AUM 214.39% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
NIM
Needham Investment Management New York $3.33B AUM 163.16% 1-Year Est. Return
GKFF
George Kaiser Family Foundation Tulsa, Oklahoma $1.04B AUM 36.93% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $27.8B AUM 46.46% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return

Acadian Asset Management's ASPN Position: Q2 2026 in Review

Acadian Asset Management opened a new position in Aspen Aerogels (ASPN) in Q2 2026: 684,915 shares worth $4.34M. The stake represents 0.01% of the portfolio and ranks #848 among its holdings. This is a return to the name: Acadian Asset Management previously reported a position in ASPN as recently as Q4 2025.

Acadian Asset Management first reported a position in ASPN in Q4 2015 and has held it in 19 quarters since. 180 funds tracked by Wall St. Rank hold ASPN as of Q2 2026.

  • Acadian Asset Management held 684,915 shares of Aspen Aerogels worth $4.34M as of Q2 2026.
  • Aspen Aerogels was a new Acadian Asset Management position in Q2 2026.
  • Aspen Aerogels made up 0.01% of Acadian Asset Management's portfolio in Q2 2026, its #848 holding.
  • Acadian Asset Management first reported a position in Aspen Aerogels in Q4 2015 and has held it in 19 quarters since.
  • 180 funds tracked by Wall St. Rank held Aspen Aerogels as of Q2 2026.

Based on Acadian Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.