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AMERICAN CENTURY COMPANIES INC

Position in ASPN — Aspen Aerogels Inc

CIK 748054 KANSAS CITY, MO

Position in ASPN

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$15,913,666
+$11,646,249 QoQ
Shares Held
2,510,042
+101.2% QoQ
Ownership
3.02%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#8
of 179 holders
Holding Since
Dec 2021
13 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ASPN Over Time

Shares Held

Position Value (USD)

Position in Specialty Chemicals

Basic Materials · as of Jun 30, 2026

AMERICAN CENTURY COMPANIES INC holds $2,335,882,177 across 47 Specialty Chemicals names. ASPN ranks #25 (0.7% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ASPN

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13 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $15,913,666 2,510,042
2026-03-31 $4,267,417 1,247,783
2025-12-31 $3,277,077 1,157,978
2025-09-30 $3,280,331 471,312
2025-06-30 $89,060 15,044
2024-12-31 $11,917,825 1,003,184
2024-09-30 $41,289,195 1,491,123
2024-06-30 $18,381,886 770,729
2024-03-31 $2,048,270 116,379
2023-12-31 $1,156,437 73,285
2023-09-30 $278,330 32,364
2023-06-30 $159,559 20,223
2021-12-31 $1,420,409 28,528