Teacher Retirement System of Texas
ASPN icon

Teacher Retirement System of Texas’s Aspen Aerogels ASPN Stock Holding History

Teacher Retirement System of Texas’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
-10,571
Closed -$62.6K – 2027
2025
Q2 		$62.6K Buy
10,571
+414
+4% +$2.38K ﹤0.01% 2038
2025
Q1 		$64.9K Buy
+10,157
New +$97.9K ﹤0.01% 2039
2022
Q1 		– Sell
-5,177
Closed -$258K – 2178
2021
Q4 		$258K Buy
+5,177
New +$273K ﹤0.01% 1870

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

Teacher Retirement System of Texas's ASPN Position: Q3 2025 in Review

Teacher Retirement System of Texas sold out of Aspen Aerogels (ASPN) in Q3 2025, closing a stake of 10,571 shares — an estimated $62.6K sold.

Teacher Retirement System of Texas first reported a position in ASPN in Q4 2021 and held it in 3 quarters. The position peaked at $258K in Q4 2021. 204 funds tracked by Wall St. Rank hold ASPN as of Q3 2025.

  • Teacher Retirement System of Texas reported no remaining Aspen Aerogels position as of Q3 2025 after selling out during the quarter.
  • Teacher Retirement System of Texas sold 10,571 Aspen Aerogels shares in Q3 2025, an estimated $62.6K.
  • Teacher Retirement System of Texas first reported a position in Aspen Aerogels in Q4 2021 and held it in 3 quarters.
  • Teacher Retirement System of Texas's Aspen Aerogels position peaked at $258K in Q4 2021.
  • 204 funds tracked by Wall St. Rank held Aspen Aerogels as of Q3 2025.

Based on Teacher Retirement System of Texas's 13F filing for Q3 2025, filed 30 Oct 2025.