Monitor for any subsequent conversion to Schedule 13D, which would signal activist intent. The 5.7% stake is just above the 5% threshold, so further accumulation or a change in filing status would be notable.
Price Chart
Executive Summary
Citadel Securities GP LLC and affiliates, including Kenneth Griffin, filed a Schedule 13G disclosing a 5.7% passive stake in AmpliTech Group, Inc., representing 1,443,191 shares held by Citadel Securities LLC. This is a new filing (not an amendment) and indicates no intent to influence management. The stake is modestly above the 5% threshold, suggesting a passive investment rather than an activist precursor.
Key Financial Metrics
Key Facts
- Citadel Securities GP LLC and related entities filed a Schedule 13G on October 6, 2026
- Beneficial ownership of 1,443,191 shares, representing 5.7% of shares outstanding
- Based on 25,338,827 shares outstanding per issuer's May 13, 2026 Form 10-Q and warrant conversion
- Filing is under Rule 13d-1(b) (passive investor), with certification of no intent to change or influence control
- This is a new filing, not an amendment to a prior 13G
Financial Impact
5.7% passive stake valued at undisclosed amount (no share price provided in filing)
Risk Factors
- Potential for future activist conversion to 13D if Citadel's intent changes
- Small-cap micro-cap stock (AmpliTech) may be volatile; passive stake provides no downside protection
Investment Themes
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G Filing (Primary) | 0001104659-26-114133 |
| Document: 0001104659-26-114133-index-headers.html | 0001104659-26-114133 |
| Document: 0001104659-26-114133-index.html | 0001104659-26-114133 |
| Document: 0001104659-26-114133.txt | 0001104659-26-114133 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 13, 2026 14d ago | DEFA14A | $2.67 $2.65 | ▼ −0.75% | ▲ +0.40% | $2.62 (−1.87%) |
Oct 13, 2026 14d ago | DEF 14A | $2.67 $2.65 | ▲ +0.75% | ▼ −0.40% | $2.62 (+1.87%) |
Oct 7, 2026 19d ago | SC 13G | $2.82 $2.57 | ▼ −9.04% | ▼ −8.77% | $2.62 (−7.09%) |
Oct 6, 2026 20d ago | SC 13G | $2.96 $2.61 | ▼ −11.82% | ▼ −10.84% | $2.62 (−11.49%) |
Aug 27, 2026 8w ago | Press Release | $3.74 $3.42 | ▼ −8.56% | ▼ −8.82% | $2.62 (−29.95%) |
Aug 25, 2026 8w ago | Press Release | $3.62 $3.24 | ▼ −10.50% | ▼ −9.96% | $2.62 (−27.62%) |
Aug 17, 2026 10w ago | 8-K | $3.70 $3.45 | ▼ −6.76% | ▼ −5.57% | $2.62 (−29.19%) |
Aug 12, 2026 10w ago | 8-K | $5.99 $3.44 | ▲ +42.57% | ▲ +40.61% | $2.62 (+56.26%) |
Jul 22, 2026 13w ago | 8-K | $6.34 $4.91 | ▼ −22.56% | ▼ −23.03% | $2.62 (−58.68%) |
Jul 8, 2026 15w ago | 8-K | $6.58 $7.03 | ▲ +6.84% | ▲ +5.98% | $2.62 (−60.18%) |
US Market Status
Subscribe to SecBot
Get Real-Time SEC Filing Intelligence
Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.
Create a free account Live analysis, Telegram alerts, watchlists and the MCP server for subscribers