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Joel Greenblatt’s Aspen Aerogels ASPN Stock Holding History

Joel Greenblatt’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
-10,396
Closed -$61.5K – 1693
2025
Q2 		$61.5K Buy
+10,396
New +$59.8K ﹤0.01% 1636
2024
Q4 		– Sell
-10,606
Closed -$294K – 1430
2024
Q3 		$294K Buy
+10,606
New +$265K ﹤0.01% 1233

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
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
OCMI
Oaktop Capital Management II Chatham, New Jersey $2.35B AUM 214.39% 1-Year Est. Return
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
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
TAM
Telemark Asset Management Boston, Massachusetts $1.38B AUM 71.45% 1-Year Est. Return
GS
Gagnon Securities New York $519M AUM 44.91% 1-Year Est. Return

Joel Greenblatt's ASPN Position: Q3 2025 in Review

Joel Greenblatt sold out of Aspen Aerogels (ASPN) in Q3 2025, closing a stake of 10,396 shares — an estimated $61.5K sold.

Joel Greenblatt first reported a position in ASPN in Q3 2024 and held it in 2 quarters. The position peaked at $294K in Q3 2024. 204 funds tracked by Wall St. Rank hold ASPN as of Q3 2025.

  • Joel Greenblatt reported no remaining Aspen Aerogels position as of Q3 2025 after selling out during the quarter.
  • Joel Greenblatt sold 10,396 Aspen Aerogels shares in Q3 2025, an estimated $61.5K.
  • Joel Greenblatt first reported a position in Aspen Aerogels in Q3 2024 and held it in 2 quarters.
  • Joel Greenblatt's Aspen Aerogels position peaked at $294K in Q3 2024.
  • 204 funds tracked by Wall St. Rank held Aspen Aerogels as of Q3 2025.

Based on Gotham Asset Management's 13F filing for Q3 2025, filed 14 Nov 2025.