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Sanders Morris Harris’s Aspen Aerogels ASPN Stock Holding History

Sanders Morris Harris’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
Q4 		– Sell
-40,000
Closed -$278K – 52
2025
Q3 		$278K Hold
40,000
– – 0.04% 238
2025
Q2 		$237K Hold
40,000
– – 0.06% 128
2025
Q1 		$256K Buy
40,000
+5,000
+14% +$48.2K 0.04% 228
2024
Q4 		$436K Buy
35,000
+27,000
+338% +$460K 0.07% 177
2024
Q3 		$222K Buy
+8,000
New +$200K 0.04% 247

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
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
GKFF
George Kaiser Family Foundation Tulsa, Oklahoma $883M AUM 21.04% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Sanders Morris Harris's ASPN Position: Q4 2025 in Review

Sanders Morris Harris sold out of Aspen Aerogels (ASPN) in Q4 2025, closing a stake of 40,000 shares — an estimated $278K sold.

Sanders Morris Harris first reported a position in ASPN in Q3 2024 and held it in 5 quarters. The position peaked at $436K in Q4 2024. 183 funds tracked by Wall St. Rank hold ASPN as of Q4 2025.

  • Sanders Morris Harris reported no remaining Aspen Aerogels position as of Q4 2025 after selling out during the quarter.
  • Sanders Morris Harris sold 40,000 Aspen Aerogels shares in Q4 2025, an estimated $278K.
  • Sanders Morris Harris first reported a position in Aspen Aerogels in Q3 2024 and held it in 5 quarters.
  • Sanders Morris Harris's Aspen Aerogels position peaked at $436K in Q4 2024.
  • 183 funds tracked by Wall St. Rank held Aspen Aerogels as of Q4 2025.

Based on Sanders Morris Harris's 13F filing for Q4 2025, filed 8 Jan 2026.