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Harbour Capital Advisors’s Aspen Aerogels ASPN Stock Holding History

Harbour Capital Advisors’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
-58,675
Closed -$473K – 280
2025
Q3 		$473K Buy
+58,675
New +$414K 0.1% 189
2024
Q4 		– Sell
-43,525
Closed -$988K – 275
2024
Q3 		$988K Buy
43,525
+175
+0.4% +$4.38K 0.23% 99
2024
Q2 		$1.02M Buy
43,350
+19,235
+80% +$452K 0.24% 88
2024
Q1 		$404K Buy
+24,115
New +$355K 0.1% 195

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

Harbour Capital Advisors's ASPN Position: Q4 2025 in Review

Harbour Capital Advisors sold out of Aspen Aerogels (ASPN) in Q4 2025, closing a stake of 58,675 shares — an estimated $473K sold.

Harbour Capital Advisors first reported a position in ASPN in Q1 2024 and held it in 4 quarters. The position peaked at $1.02M in Q2 2024. 183 funds tracked by Wall St. Rank hold ASPN as of Q4 2025.

  • Harbour Capital Advisors reported no remaining Aspen Aerogels position as of Q4 2025 after selling out during the quarter.
  • Harbour Capital Advisors sold 58,675 Aspen Aerogels shares in Q4 2025, an estimated $473K.
  • Harbour Capital Advisors first reported a position in Aspen Aerogels in Q1 2024 and held it in 4 quarters.
  • Harbour Capital Advisors's Aspen Aerogels position peaked at $1.02M in Q2 2024.
  • 183 funds tracked by Wall St. Rank held Aspen Aerogels as of Q4 2025.

Based on Harbour Capital Advisors's 13F filing for Q4 2025, filed 7 Jan 2026.