Balyasny Asset Management’s Aspen Aerogels ASPN Stock Holding History

Balyasny 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 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 $976M AUM 0.91% 1-Year Est. Return

OCMI

Oaktop Capital Management II Chatham, New Jersey $1.34B AUM 114.5% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

NIM

Needham Investment Management New York $1.96B AUM 101.23% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

GKFF

George Kaiser Family Foundation Tulsa, Oklahoma $883M AUM 21.04% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Gagnon Securities New York $433M AUM 29.08% 1-Year Est. Return

RHJA

Rice Hall James & Associates San Diego, California $1.8B AUM 36.16% 1-Year Est. Return

Balyasny Asset Management's ASPN Position: Q1 2026 in Review

Balyasny Asset Management opened a new position in Aspen Aerogels (ASPN) in Q1 2026: 149,373 shares worth $511K. The stake represents ﹤0.01% of the portfolio and ranks #2357 among its holdings. This is a return to the name: Balyasny Asset Management previously reported a position in ASPN as recently as Q2 2025.

Balyasny Asset Management first reported a position in ASPN in Q4 2021 and has held it in 7 quarters since. The position peaked at $5.07M in Q4 2022. 166 funds tracked by Wall St. Rank hold ASPN as of Q1 2026.

Balyasny Asset Management held 149,373 shares of Aspen Aerogels worth $511K as of Q1 2026.
Aspen Aerogels was a new Balyasny Asset Management position in Q1 2026.
Aspen Aerogels made up ﹤0.01% of Balyasny Asset Management's portfolio in Q1 2026, its #2357 holding.
Balyasny Asset Management first reported a position in Aspen Aerogels in Q4 2021 and has held it in 7 quarters since.
Balyasny Asset Management's Aspen Aerogels position peaked at $5.07M in Q4 2022.
166 funds tracked by Wall St. Rank held Aspen Aerogels as of Q1 2026.

Based on Balyasny Asset Management's 13F filing for Q1 2026, filed 15 May 2026.