Dmitry Balyasny’s Aspen Aerogels ASPN Stock Holding History

Dmitry Balyasny’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	$277K	Sell	43,717 -105,656	-71%	-$518K	﹤0.01%	2730
2026 Q1	$511K	Buy	+149,373	New	+$504K	﹤0.01%	2357
2025 Q3	–	Sell	-59,099	Closed	-$350K	–	2896
2025 Q2	$350K	Sell	59,099 -97,649	-62%	-$562K	﹤0.01%	2430
2025 Q1	$1M	Buy	+156,748	New	+$1.51M	﹤0.01%	1987
2024 Q4	–	Sell	-106,133	Closed	-$2.94M	–	2709
2024 Q3	$2.94M	Buy	+106,133	New	+$2.66M	﹤0.01%	1501
2024 Q1	–	Sell	-16,485	Closed	-$260K	–	2605
2023 Q4	$260K	Buy	+16,485	New	+$170K	﹤0.01%	2225
2023 Q1	–	Sell	-429,901	Closed	-$5.07M	–	2633
2022 Q4	$5.07M	Buy	+429,901	New	+$4.91M	0.01%	1019
2022 Q1	–	Sell	-83,568	Closed	-$4.16M	–	2460
2021 Q4	$4.16M	Buy	+83,568	New	+$4.4M	0.01%	901

Other funds holding ASPN

KIM LLC Wichita, Kansas $1B AUM 29.68% 1-Year Est. Return

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 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 Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Jacobs Levy Equity Management Florham Park, New Jersey $27.8B AUM 46.46% 1-Year Est. Return

Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return

Dmitry Balyasny's ASPN Position: Q2 2026 in Review

Dmitry Balyasny reduced its Aspen Aerogels (ASPN) stake by 71% in Q2 2026, selling an estimated $518K and leaving 43,717 shares worth $277K. The position accounts for ﹤0.01% of the portfolio, ranked #2730.

Dmitry Balyasny first reported a position in ASPN in Q4 2021 and has held it in 8 quarters since. The position peaked at $5.07M in Q4 2022. 179 funds tracked by Wall St. Rank hold ASPN as of Q2 2026.

Dmitry Balyasny held 43,717 shares of Aspen Aerogels worth $277K as of Q2 2026.
Dmitry Balyasny sold 105,656 Aspen Aerogels shares in Q2 2026, an estimated $518K.
Aspen Aerogels made up ﹤0.01% of Dmitry Balyasny's portfolio in Q2 2026, its #2730 holding.
Dmitry Balyasny first reported a position in Aspen Aerogels in Q4 2021 and has held it in 8 quarters since.
Dmitry Balyasny's Aspen Aerogels position peaked at $5.07M in Q4 2022.
179 funds tracked by Wall St. Rank held Aspen Aerogels as of Q2 2026.

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