RhumbLine Advisers
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RhumbLine Advisers’s Aspen Aerogels ASPN Stock Holding History

RhumbLine Advisers’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
Q3 		$459K Buy
83,695
+360
+0.4% +$1.88K ﹤0.01% 2783
2026
Q2 		$528K Sell
83,335
-664
-0.8% -$3.26K ﹤0.01% 2731
2026
Q1 		$287K Sell
83,999
-5,319
-6% -$17.9K ﹤0.01% 2926
2025
Q4 		$253K Sell
89,318
-21,414
-19% -$110K ﹤0.01% 3062
2025
Q3 		$771K Sell
110,732
-2,774
-2% -$19.6K ﹤0.01% 2405
2025
Q2 		$672K Buy
113,506
+22,541
+25% +$130K ﹤0.01% 2478
2025
Q1 		$581K Sell
90,965
-2,079
-2% -$20K ﹤0.01% 2479
2024
Q4 		$1.11M Buy
93,044
+2,554
+3% +$43.5K ﹤0.01% 2203
2024
Q3 		$2.51M Sell
90,490
-2,736
-3% -$68.5K ﹤0.01% 1784
2024
Q2 		$2.22M Buy
93,226
+11,205
+14% +$263K ﹤0.01% 1829
2024
Q1 		$1.44M Buy
82,021
+2,239
+3% +$33K ﹤0.01% 2073
2023
Q4 		$1.26M Buy
79,782
+3,665
+5% +$37.8K ﹤0.01% 2143
2023
Q3 		$655K Buy
76,117
+1,861
+3% +$13.2K ﹤0.01% 2441
2023
Q2 		$586K Buy
74,256
+25,479
+52% +$177K ﹤0.01% 2590
2023
Q1 		$363K Buy
48,777
+10,344
+27% +$103K ﹤0.01% 2551
2022
Q4 		$453K Buy
38,433
+1,421
+4% +$16.2K ﹤0.01% 2511
2022
Q3 		$341K Buy
37,012
+6,028
+19% +$73K ﹤0.01% 2674
2022
Q2 		$306K Buy
30,984
+8,613
+39% +$174K ﹤0.01% 2740
2022
Q1 		$771K Buy
22,371
+2,664
+14% +$86.5K ﹤0.01% 2235
2021
Q4 		$981K Buy
19,707
+119
+0.6% +$6.27K ﹤0.01% 2223
2021
Q3 		$901K Buy
19,588
+2,067
+12% +$81.9K ﹤0.01% 2270
2021
Q2 		$524K Sell
17,521
-7,655
-30% -$156K ﹤0.01% 2546
2021
Q1 		$512K Sell
25,176
-1,395
-5% -$29.4K ﹤0.01% 2479
2020
Q4 		$443K Buy
26,571
+5,369
+25% +$70.6K ﹤0.01% 2487
2020
Q3 		$232K Sell
21,202
-4,319
-17% -$34.2K ﹤0.01% 2629
2020
Q2 		$168K Buy
+25,521
New +$164K ﹤0.01% 2831

Other funds holding ASPN

ACM
AIGH Capital Management Baltimore, Maryland $992M AUM 516.32% 1-Year Est. Return
BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
OCMI
Oaktop Capital Management II Chatham, New Jersey $1.83B AUM 104.88% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $229B AUM 33.35% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $71.4B AUM 33.43% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Gagnon Securities
Gagnon Securities New York $577M AUM 61.61% 1-Year Est. Return

RhumbLine Advisers's ASPN Position: Q3 2026 in Review

RhumbLine Advisers increased its Aspen Aerogels (ASPN) stake by 0.43% in Q3 2026, buying an estimated $1.88K and bringing the position to 83,695 shares worth $459K. The position accounts for ﹤0.01% of the portfolio, ranked #2783.

RhumbLine Advisers first reported a position in ASPN in Q2 2020 and has held it in 26 quarters since. The position peaked at $2.51M in Q3 2024. 135 funds tracked by Wall St. Rank hold ASPN as of Q3 2026.

  • RhumbLine Advisers held 83,695 shares of Aspen Aerogels worth $459K as of Q3 2026.
  • RhumbLine Advisers bought 360 Aspen Aerogels shares in Q3 2026, an estimated $1.88K.
  • Aspen Aerogels made up ﹤0.01% of RhumbLine Advisers's portfolio in Q3 2026, its #2783 holding.
  • RhumbLine Advisers first reported a position in Aspen Aerogels in Q2 2020 and has held it in 26 quarters since.
  • RhumbLine Advisers's Aspen Aerogels position peaked at $2.51M in Q3 2024.
  • 135 funds tracked by Wall St. Rank held Aspen Aerogels as of Q3 2026.

Based on RhumbLine Advisers's 13F filing for Q3 2026, filed 10 Nov 2026.