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Penbrook Management’s Aspen Aerogels ASPN Stock Holding History

Penbrook 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
2025
Q4 		– Sell
-14,180
Closed -$98.7K – 98
2025
Q3 		$98.7K Sell
14,180
-18,155
-56% -$128K 0.07% 99
2025
Q2 		$200K Buy
32,335
+14,180
+78% +$81.6K 0.08% 105
2025
Q1 		$116K Buy
+18,155
New +$175K 0.09% 101

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

Penbrook Management's ASPN Position: Q4 2025 in Review

Penbrook Management sold out of Aspen Aerogels (ASPN) in Q4 2025, closing a stake of 14,180 shares — an estimated $98.7K sold.

Penbrook Management first reported a position in ASPN in Q1 2025 and held it in 3 quarters. The position peaked at $200K in Q2 2025. 183 funds tracked by Wall St. Rank hold ASPN as of Q4 2025.

  • Penbrook Management reported no remaining Aspen Aerogels position as of Q4 2025 after selling out during the quarter.
  • Penbrook Management sold 14,180 Aspen Aerogels shares in Q4 2025, an estimated $98.7K.
  • Penbrook Management first reported a position in Aspen Aerogels in Q1 2025 and held it in 3 quarters.
  • Penbrook Management's Aspen Aerogels position peaked at $200K in Q2 2025.
  • 183 funds tracked by Wall St. Rank held Aspen Aerogels as of Q4 2025.

Based on Penbrook Management's 13F filing for Q4 2025, filed 6 Jan 2026.