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LMR Partners’s Aspen Aerogels ASPN Stock Holding History

LMR Partners’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
2025
Q3 		– Sell
-141,785
Closed -$839K – 1441
2025
Q2 		$839K Hold
141,785
– – 0.01% 834
2025
Q1 		$906K Hold
141,785
– – 0.01% 804
2024
Q4 		$1.68M Buy
+141,785
New +$2.42M 0.01% 643

Other funds holding ASPN

KL
KIM LLC Wichita, Kansas $976M AUM 0.91% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
OCMI
Oaktop Capital Management II Chatham, New Jersey $1.34B AUM 114.5% 1-Year Est. Return
NIM
Needham Investment Management New York $1.96B AUM 101.23% 1-Year Est. Return
GKFF
George Kaiser Family Foundation Tulsa, Oklahoma $883M AUM 21.04% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
TAM
Telemark Asset Management Boston, Massachusetts $1.08B AUM 70.88% 1-Year Est. Return
GS
Gagnon Securities New York $433M AUM 29.08% 1-Year Est. Return

LMR Partners's ASPN Position: Q3 2025 in Review

LMR Partners sold out of Aspen Aerogels (ASPN) in Q3 2025, closing a stake of 141,785 shares — an estimated $839K sold.

LMR Partners first reported a position in ASPN in Q4 2024 and held it in 3 quarters. The position peaked at $1.68M in Q4 2024. 204 funds tracked by Wall St. Rank hold ASPN as of Q3 2025.

  • LMR Partners reported no remaining Aspen Aerogels position as of Q3 2025 after selling out during the quarter.
  • LMR Partners sold 141,785 Aspen Aerogels shares in Q3 2025, an estimated $839K.
  • LMR Partners first reported a position in Aspen Aerogels in Q4 2024 and held it in 3 quarters.
  • LMR Partners's Aspen Aerogels position peaked at $1.68M in Q4 2024.
  • 204 funds tracked by Wall St. Rank held Aspen Aerogels as of Q3 2025.

Based on LMR Partners's 13F filing for Q3 2025, filed 14 Nov 2025.