State of Wisconsin Investment Board’s Aspen Aerogels ASPN Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$351K	Sell	102,676 -17,562	-15%	-$59.2K	﹤0.01%	2159
2025 Q4	$340K	Sell	120,238 -136,552	-53%	-$704K	﹤0.01%	2119
2025 Q3	$1.79M	Sell	256,790 -25,833	-9%	-$182K	﹤0.01%	1406
2025 Q2	$1.67M	Buy	282,623 +69,354	+33%	+$399K	﹤0.01%	1377
2025 Q1	$1.36M	Sell	213,269 -71,139	-25%	-$686K	﹤0.01%	1386
2024 Q4	$3.38M	Buy	284,408 +51,017	+22%	+$870K	0.01%	1104
2024 Q3	$6.46M	Sell	233,391 -5,200	-2%	-$130K	0.02%	851
2024 Q2	$5.69M	Buy	238,591 +20,268	+9%	+$476K	0.02%	867
2024 Q1	$3.84M	Sell	218,323 -37,377	-15%	-$551K	0.01%	1040
2023 Q4	$4.03M	Buy	255,700 +160,334	+168%	+$1.66M	0.01%	1053
2023 Q3	$820K	Sell	95,366 -21,464	-18%	-$152K	﹤0.01%	1469
2023 Q2	$922K	Buy	116,830 +7,496	+7%	+$52.2K	﹤0.01%	1485
2023 Q1	$815K	Buy	109,334 +6,962	+7%	+$69.2K	﹤0.01%	1570
2022 Q4	$1.21M	Buy	102,372 +11,420	+13%	+$131K	﹤0.01%	1436
2022 Q3	$839K	Buy	90,952 +61,871	+213%	+$749K	﹤0.01%	1638
2022 Q2	$287K	Buy	29,081 +7,181	+33%	+$145K	﹤0.01%	2340
2022 Q1	$755K	Buy	21,900 +16,600	+313%	+$539K	﹤0.01%	1701
2021 Q4	$264K	Sell	5,300 -2,300	-30%	-$121K	﹤0.01%	2037
2021 Q3	$350K	Buy	+7,600	New	+$301K	﹤0.01%	1822