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EdgarHawk

Kelly Patrick Arthur

Co-President and COO

Officer

Latest: Co-President and COO selling · May 2026

6 filings analyzed · 1 company · Latest 2026-05-14

Companies

Company Buys Sells Direction
Cipher Mining Inc. CIFR 0 10 Net selling

Activity

May 2026
2026-05-14 Cipher Digital Inc. CIFR
medium
Sell
48,000 shares
$929,280
Significance 5/10

COO Kelly Patrick Arthur sold 48,000 shares of CIFR at $19.36; stock now at $22.29 after +35.8% 90d rise, poorly timed vs fundamentals.

Kelly Patrick Arthur, Co-President and COO, sold 48,000 shares at $19.36 on 2026-05-12, reducing holdings from 1,453,776 to 1,451,856 shares. The stock has risen 35.8% over 90 days post-transaction and currently trades at $22.29—well above the $19.36 sale price—indicating the sale was poorly timed relative to subsequent price action. Across his prior 5 same-ticker sales at CIFR, Arthur achieved a 40.00% well-timed rate at the 90-day horizon, but this latest transaction contradicts that pattern: he sold into weakness only to see the stock accelerate upward. The company remains deeply unprofitable (net income of $-114.3M against $34.8M quarterly revenue), yet the 48% annual revenue growth and strong momentum may explain the disconnect between fundamentals and recent insider activity—Arthur exited a position in a loss-making business even as equity markets priced in growth.

March 2026
2026-03-19 Cipher Digital Inc. CIFR
high
Sell
35,568 shares
$532,809
Significance 6/10

COO Kelly Patrick Arthur sells 35,568 shares of CIFR at $14.98; stock down -40.8% from 52-week high, company unprofitable.

Kelly Patrick Arthur, Co-President and COO, sold 35,568 shares at $14.98 on 2026-03-16, reducing his holdings from 1,477,076 to 1,441,508 shares. The sale occurs in a context of significant stock weakness: CIFR is trading at $14.64, a -40.8% decline from its 52-week high of $24.71, and the stock has fallen -6.4% over 30 days and -9.7% over 90 days. The company reported net income of -$3,283,000 in its latest quarter and remains unprofitable on a full-year basis, though annual revenue growth reached +48.0%, suggesting a growth-stage business burning cash. Arthur's same-ticker history at CIFR shows 2 of 2 prior measurable 90-day outcomes were well-timed (negative 90-day returns of -6.6% and -13.4%), indicating a pattern of selling before downturns at this stock specifically. The timing of this sale—after recent sharp declines and amid fundamental unprofitability—merits close observation as to whether it reflects confidence in a bottom or concern about further deterioration.

February 2026
2026-02-19 Cipher Mining Inc. CIFR
medium
Sell
35,568 shares
$552,015
Significance 4/10

COO Kelly Patrick Arthur sells 35,568 shares of CIFR at $15.52; stock down -36.1% from 52-week high.

Kelly Patrick Arthur (Co-President and COO) sold 35,568 shares of Cipher Mining Inc. (CIFR) at $15.52 on 2026-02-17, reducing holdings by -2.4% to 1.48M shares. The sale occurs as CIFR trades -36.1% below its 52-week high of $24.71 and -11.8% below its 30-day average, suggesting execution near a depressed price point. Across his cross-ticker history, Arthur's prior 3 sales achieved a well-timed rate of 100.00% (90-day outcomes negative, indicating he sold before declines), but at CIFR specifically, his track record is more mixed: one 90-day measurable outcome (-13.4% at the October sale) was well-timed, while a December sale that initially returned +20.2% over 30 days indicates inconsistent timing at this ticker. Cipher Mining's fundamentals remain stressed—the company reported $71.7M quarterly revenue and a -$3.3M net loss, with no profitability in the full fiscal year despite +19.3% annual growth—creating uncertainty that may weigh on investor confidence.

January 2026
2026-01-20 Cipher Mining Inc. CIFR
medium
Sell
35,568 shares
$631,688
Significance 5/10

COO Kelly Patrick Arthur sold 35.6K shares of CIFR at $17.76 on Jan 15; stock trading -27.5% from 52-week high of $24.71

Kelly Patrick Arthur, Co-President and COO, sold 35,568 shares at $17.76 on 2026-01-15, reducing his holdings by 2.3% to 1,512,644 shares. The sale occurred near mid-range pricing: the stock is currently at $17.92 (0.9% above the transaction price) but sits -27.5% below its 52-week high of $24.71. Reviewing his prior trades at CIFR, his October 2025 sale at a higher price point preceded a 90-day decline of -13.4%, demonstrating timing that aligned with the subsequent downturn. The company posted $71.7M revenue last quarter with annual growth of +19.3%, but remains unprofitable (full-year net income was $-3.3M), providing a backdrop of operational losses against growth. Given the executive's position and modest reduction in stake, this transaction reflects a discrete share disposition rather than a wholesale exit from the company.

December 2025
2025-12-17 Cipher Mining Inc. CIFR
medium
Sell
35,569 shares
$536,381
Significance 5/10

COO Kelly Patrick Arthur sold 35,569 shares of CIFR at $15.08 on 2025-12-15; stock now $14.39, -41.8% from 52-week high

Kelly Patrick Arthur, Co-President and COO, sold 35,569 shares at $15.08, reducing holdings by 2.5% to 1,398,569 shares. The stock has declined sharply to $14.39, down 41.8% from its 52-week high of $24.71, though it remains up 21.4% over 90 days. Arthur's cross-ticker track record shows 1 prior sell with an average 30-day return of -31.9%, and at CIFR specifically, a prior sell on 2025-10-15 also posted -31.9% 30-day returns. The company reported $71.7M in latest quarterly revenue and $-3.3M net income, indicating ongoing unprofitability despite 19.3% annual revenue growth. The timing and magnitude of this sale in a company trading well below its 52-week peak, coupled with the insider's history of unfavorable sell timing and the company's negative earnings profile, merit closer review of whether this reflects broader management concerns about valuation or execution.

October 2025
2025-10-16 Cipher Mining Inc. CIFR
medium
Sell
26,581 shares
$560,327
Significance 5/10

COO Kelly Patrick Arthur sold 26,581 shares of CIFR at $21.08 on 2025-10-15; stock now -11.0% from that price.

Kelly Patrick Arthur, Co-President and COO, sold 26,581 shares at $21.08, reducing his holdings by 2.1% to 1,213,919 shares. The stock has since declined 11.0% from the sale price to $18.72 current, suggesting the transaction was well-timed relative to near-term price action. However, this must be contextualized: Cipher Mining is currently unprofitable with net income of $-45.8M against revenue of $43.6M, and the 30-day and 90-day rallies of 62.6% and 194.3% reflect volatility in a capital-intensive, cyclical mining business, not fundamental improvement. The sale occurred near the 52-week high of $21.03, and Arthur retained 1.21M shares, indicating he has not exited his position entirely. For investors, the key question is whether the recent rally represents speculative momentum in a Bitcoin/mining cycle or sustainable operational improvements; the COO's partial liquidation near the peak, combined with ongoing losses, invites scrutiny of the company's near-term margin and path to profitability.

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