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Ironwood Investment Management’s Aspen Aerogels ASPN Stock Holding History

Ironwood Investment 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
2026
Q1 		$570K Buy
166,646
+39,186
+31% +$132K 0.24% 113
2025
Q4 		$361K Sell
127,460
-6,902
-5% -$35.6K 0.15% 131
2025
Q3 		$935K Buy
134,362
+10,038
+8% +$70.8K 0.41% 80
2025
Q2 		$736K Buy
+124,324
New +$715K 0.36% 86

Other funds holding ASPN

KL
KIM LLC Wichita, Kansas $976M AUM 0.91% 1-Year Est. Return
OCMI
Oaktop Capital Management II Chatham, New Jersey $1.34B AUM 114.5% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
NIM
Needham Investment Management New York $1.96B AUM 101.23% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
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
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
GS
Gagnon Securities New York $433M AUM 29.08% 1-Year Est. Return
RHJA
Rice Hall James & Associates San Diego, California $1.8B AUM 36.16% 1-Year Est. Return

Ironwood Investment Management's ASPN Position: Q1 2026 in Review

Ironwood Investment Management increased its Aspen Aerogels (ASPN) stake by 31% in Q1 2026, buying an estimated $132K and bringing the position to 166,646 shares worth $570K. The position accounts for 0.24% of the portfolio, ranked #113.

Ironwood Investment Management first reported a position in ASPN in Q2 2025 and has held it in 4 quarters since. The position peaked at $935K in Q3 2025. 166 funds tracked by Wall St. Rank hold ASPN as of Q1 2026.

  • Ironwood Investment Management held 166,646 shares of Aspen Aerogels worth $570K as of Q1 2026.
  • Ironwood Investment Management bought 39,186 Aspen Aerogels shares in Q1 2026, an estimated $132K.
  • Aspen Aerogels made up 0.24% of Ironwood Investment Management's portfolio in Q1 2026, its #113 holding.
  • Ironwood Investment Management first reported a position in Aspen Aerogels in Q2 2025 and has held it in 4 quarters since.
  • Ironwood Investment Management's Aspen Aerogels position peaked at $935K in Q3 2025.
  • 166 funds tracked by Wall St. Rank held Aspen Aerogels as of Q1 2026.

Based on Ironwood Investment Management's 13F filing for Q1 2026, filed 15 May 2026.