Monitor for any future conversion of this SC 13G to a SC 13D, which would signal activist intent. The simultaneous filing of two SC 13G filings (one by Jane Street Group, one by Citadel) on the same date suggests coordinated or coincidental passive accumulation — watch for additional filings from other large holders.
Price Chart
Executive Summary
Citadel Securities GP LLC and related entities (including Kenneth Griffin) filed a Schedule 13G disclosing a passive 5.5% beneficial ownership stake in Cipher Digital Inc., representing 22,862,668 shares held by Citadel Securities Group LP and Citadel Securities GP LLC. The filing is made under Rule 13d-1(c) with no intent to influence control, and includes a joint filing agreement among the Citadel entities.
Key Financial Metrics
Key Facts
- Citadel Securities GP LLC and related entities disclosed a 5.5% beneficial ownership stake in Cipher Digital Inc.
- Total shares deemed beneficially owned by Kenneth Griffin: 22,912,250 (5.5% of shares outstanding).
- Citadel Securities LLC holds 17,951,304 shares (4.3%) directly.
- Filing is under Rule 13d-1(c) — passive, no intent to influence control.
- Based on 415,030,722 shares outstanding as of August 3, 2026 per issuer's Form 10-Q.
- Joint filing agreement executed among Citadel Securities GP LLC, Citadel Securities LLC, Citadel Securities Group LP, Citadel Advisors LLC, Citadel Advisors Holdings LP, Citadel GP LLC, and Kenneth Griffin.
Financial Impact
5.5% passive stake valued at approximately $22.9 million based on 22,912,250 shares at current market price (not provided in filing).
Risk Factors
- Passive stake could be converted to activist 13D if Citadel decides to engage with management.
- Concentration of ownership among large passive holders may reduce liquidity.
- No explicit disclosure of purchase price or cost basis — exit could pressure stock if sold rapidly.
Investment Themes
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G Filing (Primary) | 0001104659-26-117904 |
| Document: 0001104659-26-117904-index-headers.html | 0001104659-26-117904 |
| Document: 0001104659-26-117904-index.html | 0001104659-26-117904 |
| Document: 0001104659-26-117904.txt | 0001104659-26-117904 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 21, 2026 4d ago | SC 13G | $8.32 | awaiting T+5 | — | $7.93 (−4.63%) |
Oct 21, 2026 4d ago | SC 13G | $8.32 | awaiting T+5 | — | $7.93 (−4.63%) |
Oct 21, 2026 4d ago | SC 13G/A | $8.32 | awaiting T+5 | — | $7.93 (+4.63%) |
Oct 20, 2026 5d ago | Press Release | $9.13 | awaiting T+5 | — | $7.93 (−13.09%) |
Oct 16, 2026 9d ago | 8-K | $8.94 | awaiting T+5 | — | $7.93 (+11.24%) |
Oct 14, 2026 12d ago | 8-K | $9.94 $9.13 | ▲ +8.15% | ▲ +8.60% | $7.93 (+20.17%) |
Oct 13, 2026 13d ago | 8-K | $11.34 $8.88 | ▼ −21.69% | ▼ −20.54% | $7.93 (−30.03%) |
Oct 7, 2026 18d ago | SC 13D/A | $13.50 $10.04 | ▼ −25.63% | ▼ −25.35% | $7.93 (−41.22%) |
Sep 25, 2026 4w ago | 8-K | $17.73 $15.71 | ▼ −11.39% | ▼ −11.17% | $7.93 (−55.25%) |
Sep 25, 2026 4w ago | Press Release | $17.73 $15.71 | ▼ −11.39% | ▼ −11.17% | $7.93 (−55.25%) |
US Market Status
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