Simplex Trading
ASPN icon

Simplex Trading’s Aspen Aerogels ASPN Stock Holding History

Simplex Trading’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 		$160K Buy
25,200
+300
+1% +$1.47K ﹤0.01% 4995
2026
Q1 		$85.2K Sell
24,900
-65,600
-72% -$221K ﹤0.01% 5281
2025
Q4 		$256K Sell
90,500
-5,500
-6% -$28.4K ﹤0.01% 3978
2025
Q3 		$668K Sell
96,000
-7,700
-7% -$54.3K ﹤0.01% 3488
2025
Q2 		$613K Sell
103,700
-22,600
-18% -$130K ﹤0.01% 3289
2025
Q1 		$807K Sell
126,300
-67,900
-35% -$655K ﹤0.01% 2913
2024
Q4 		$2.31M Sell
194,200
-1,700
-0.9% -$29K ﹤0.01% 2068
2024
Q3 		$5.42M Sell
195,900
-100,400
-34% -$2.51M ﹤0.01% 1431
2024
Q2 		$7.07M Buy
296,300
+151,200
+104% +$3.55M ﹤0.01% 1228
2024
Q1 		$2.55M Buy
145,100
+111,700
+334% +$1.65M ﹤0.01% 2160
2023
Q4 		$527K Sell
33,400
-11,600
-26% -$120K ﹤0.01% 3644
2023
Q3 		$387K Buy
45,000
+34,100
+313% +$242K ﹤0.01% 3665
2023
Q2 		$86K Buy
10,900
+10,200
+1,457% +$71K ﹤0.01% 5261
2023
Q1 		$5K Sell
700
-51,700
-99% -$514K ﹤0.01% 8002
2022
Q4 		$617K Buy
52,400
+10,500
+25% +$120K ﹤0.01% 2952
2022
Q3 		$386K Buy
41,900
+9,700
+30% +$117K ﹤0.01% 3778
2022
Q2 		$318K Buy
32,200
+600
+2% +$12.1K ﹤0.01% 4027
2022
Q1 		$1.09M Buy
31,600
+15,900
+101% +$516K ﹤0.01% 2813
2021
Q4 		$781K Buy
15,700
+4,500
+40% +$237K ﹤0.01% 3208
2021
Q3 		$388K Sell
11,200
-400
-3% -$15.9K ﹤0.01% 4491
2021
Q2 		$347K Buy
11,600
+11,248
+3,195% +$230K ﹤0.01% 4733
2021
Q1 		$715K Buy
352
+347
+6,940% +$7.32K ﹤0.01% 2850
2020
Q4 		$8K Buy
+5
New +$66 ﹤0.01% 7504

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

Simplex Trading's ASPN Position: Q2 2026 in Review

Simplex Trading increased its Aspen Aerogels (ASPN) stake by 572% in Q2 2026, buying an estimated $66.6K and bringing the position to 15,952 shares worth $101K. The position accounts for ﹤0.01% of the portfolio, ranked #5531.

Simplex Trading first reported a position in ASPN in Q4 2020 and has held it in 19 quarters since. The position peaked at $1.21M in Q1 2022. 180 funds tracked by Wall St. Rank hold ASPN as of Q2 2026.

  • Simplex Trading held 15,952 shares of Aspen Aerogels worth $101K as of Q2 2026.
  • Simplex Trading bought 13,578 Aspen Aerogels shares in Q2 2026, an estimated $66.6K.
  • Aspen Aerogels made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #5531 holding.
  • Simplex Trading first reported a position in Aspen Aerogels in Q4 2020 and has held it in 19 quarters since.
  • Simplex Trading's Aspen Aerogels position peaked at $1.21M in Q1 2022.
  • 180 funds tracked by Wall St. Rank held Aspen Aerogels as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.