The institutional cluster is strong and broad-based, but the 45-day 13F lag means these positions reflect quarter-end views from June 30, 2026. Monitor for any subsequent insider buying or a catalyst (earnings, contract win) that would validate the thesis. If ASPN has pulled back since quarter-end, the cluster may represent a buying opportunity; if it has run up, the signal may be stale.
Executive Summary
A strong institutional accumulation cluster emerged in ASPN during 2026-Q2, with 8 buyers adding $22.7M in net new holdings versus just 1 trivial seller trimming $15. American Century Companies led the charge, more than doubling its position to $15.9M, while Panagora Asset Management increased its stake 15-fold to $2.8M. The cluster is dominated by active asset managers (American Century, Panagora, Wealth Enhancement, Farther Finance, LPL) alongside mega-passive firms (Fidelity, Morgan Stanley, Goldman Sachs), suggesting a shared thesis around ASPN's growth story rather than index rebalancing. However, the 45-day 13F reporting lag means these positions may have been partially unwound by now, and there is no insider buying to corroborate the institutional thesis.
Key Financial Metrics
Institutional Positions
Net institutional flow: $22.7M
▲ Buyers (8)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| American Century Companies | DOUBLED | +101.2% | $15.9M | $11.6M |
| Panagora Asset Management | DOUBLED | +1485.7% | $2.8M | $2.7M |
| Goldman Sachs | ADD | +52.6% | $8.7M | $5.6M |
| Morgan Stanley | DOUBLED | +110.9% | $2.5M | $1.9M |
▼ Sellers (1)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Fifth Third Bancorp | TRIM | -50% | $190.00 | -$15.00 |
Key Facts
- 8 institutional buyers added $22.7M in net new ASPN holdings during 2026-Q2
- American Century Companies doubled its position to $15.9M (Δ+$11.6M)
- Panagora Asset Management increased 15x to $2.8M (Δ+$2.7M)
- Goldman Sachs added 52.6% to $8.7M (Δ+$5.6M)
- Only 1 seller — Fifth Third Bancorp trimmed $15 — negligible
- No open-market insider buying in the window to corroborate the institutional thesis
Financial Impact
8 institutional buyers accumulated $31.0M in total current holdings, with net new buying of $22.7M. The largest buyer (American Century) alone added $11.6M. Total selling was just $15.
Risk Factors
- 13F positions are 45+ days stale — institutions may have already exited or trimmed
- No insider buying to confirm the institutional thesis
- Mega-passive funds (Fidelity, Morgan Stanley, Goldman Sachs) may be rebalancing, not making active bets
- Small absolute dollar amounts from some buyers (Farther Finance $624, LPL $440K) suggest limited conviction from those firms
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 institutional 13F filing from SEC EDGAR.
| Document | Accession Number |
|---|---|
| INST-CLUSTER Data (Synthetic) | inst-cluster-ASPN-2026-Q2 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 22, 2026 5d ago | Press Release | $5.44 | awaiting T+1 | — | — |
Oct 19, 2026 8d ago | SC 13G | $5.32 $5.33 | ▲ +0.19% | ▼ −0.15% | — |
Sep 24, 2026 4w ago | SC 13D/A | $5.22 $5.17 | ▲ +0.96% | ▲ +0.21% | — |
Sep 15, 2026 6w ago | 8-K | $4.86 $4.99 | ▲ +2.70% | ▲ +2.37% | — |
Aug 15, 2026 10w ago | Institutional Cluster | $5.82 $5.58 | ▼ −4.12% | ▼ −3.45% | — |
Apr 23, 2026 26w ago | Press Release | $3.36 $3.50 | ▲ +4.17% | ▲ +3.38% | — |
Feb 25, 2026 34w ago | 8-K | $2.57 $3.14 | ▼ −22.18% | ▼ −22.72% | — |
US Market Status
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