California State Teachers Retirement System (CalSTRS)’s Aspen Aerogels ASPN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q2
$335K Sell
56,519
-4,526
-7% -$26.8K ﹤0.01% 2181
2025
Q1
$390K Hold
61,045
﹤0.01% 2155
2024
Q4
$725K Buy
61,045
+264
+0.4% +$3.14K ﹤0.01% 1946
2024
Q3
$1.68M Buy
60,781
+1,155
+2% +$32K ﹤0.01% 1490
2024
Q2
$1.42M Sell
59,626
-413
-0.7% -$9.85K ﹤0.01% 1573
2024
Q1
$1.06M Buy
60,039
+4,734
+9% +$83.3K ﹤0.01% 1774
2023
Q4
$873K Sell
55,305
-2,401
-4% -$37.9K ﹤0.01% 1908
2023
Q3
$496K Sell
57,706
-14,766
-20% -$127K ﹤0.01% 2204
2023
Q2
$572K Buy
72,472
+1,465
+2% +$11.6K ﹤0.01% 2228
2023
Q1
$529K Buy
71,007
+7,178
+11% +$53.5K ﹤0.01% 2282
2022
Q4
$753K Buy
63,829
+23,749
+59% +$280K ﹤0.01% 2096
2022
Q3
$370K Buy
40,080
+2,925
+8% +$27K ﹤0.01% 2458
2022
Q2
$367K Buy
37,155
+5,273
+17% +$52.1K ﹤0.01% 2517
2022
Q1
$1.1M Sell
31,882
-2,436
-7% -$84K ﹤0.01% 1989
2021
Q4
$1.71M Buy
34,318
+22,364
+187% +$1.11M ﹤0.01% 1829
2021
Q3
$550K Sell
11,954
-17,818
-60% -$820K ﹤0.01% 2440
2021
Q2
$891K Sell
29,772
-1,376
-4% -$41.2K ﹤0.01% 2279
2021
Q1
$634K Buy
31,148
+320
+1% +$6.51K ﹤0.01% 2415
2020
Q4
$515K Hold
30,828
﹤0.01% 2410
2020
Q3
$338K Hold
30,828
﹤0.01% 2475
2020
Q2
$203K Buy
+30,828
New +$203K ﹤0.01% 2708
2015
Q2
Sell
-10,444
Closed -$76K 3002
2015
Q1
$76K Hold
10,444
﹤0.01% 3006
2014
Q4
$83K Buy
10,444
+44
+0.4% +$350 ﹤0.01% 3024
2014
Q3
$105K Buy
+10,400
New +$105K ﹤0.01% 2990