Weekly Insider Trading Report

Period: December 21, 2025 - December 28, 2025

Executive Summary

• Total Insider Activity: There were 4,611 transactions this week, consisting of 232 buys and 4,379 sells, indicating a significant sell-off relative to buying activity.
• Buy/Sell Ratio: The buy-to-sell ratio stands at a mere 0.05, underscoring a bearish sentiment among insiders.
• Aggregate Values: Total value of buys reached approximately $19.25 million, while total sells amounted to a staggering $7.96 billion.
• Top Buy: The most notable purchase was made by Timothy D. Cook, Director of NKE, with a purchase value of $2,948,500 for 50,000 shares.
• Top Sell: Significant selling activity from the insiders of OKLO, with multiple transactions each valued at $15,802,124.27, totaling $158 million in insider sales.

Top Conviction Buys

Significant Non-10b5-1 Purchases

1. NKE (Nike, Inc.)

   • Insider: Timothy D. Cook, Director
   • Transaction Type: Buy
   • Total Value: $2,948,500
   • Shares: 50,000
   • Price: $58.97
   • Trade Date: December 22, 2025

2. NKE (Nike, Inc.)

   • Insider: Robert Holmes Swan, Director
   • Transaction Type: Buy
   • Total Value: $500,080.14
   • Shares: 8,691
   • Price: $57.54
   • Trade Date: December 22, 2025

3. DMLP (Dorchester Minerals)

   • Insider: Dorchester Minerals Operating LP
   • Transaction Type: Buy
   • Total Value: $222,994
   • Shares: 10,000
   • Price: $22.30
   • Trade Date: December 22, 2025

4. AMLX (Amalfi Holdings)

   • Insider: Karen Firestone, Other
   • Transaction Type: Buy
   • Total Value: $100,845
   • Shares: 8,100
   • Price: $12.45
   • Trade Dates: December 23, 2025 (multiple transactions)

Risk Radar

Notable Sells and Warning Signs

1. OKLO (Oklo, Inc.)

   • Insider: Jacob DeWitte, Other
   • Transaction Type: Sell
   • Total Value: $15,802,124.27
   • Shares: 191,284
   • Price: $82.61
   • Trade Date: December 22, 2025

2. OKLO (Oklo, Inc.)

   • Insider: Caroline Cochran, Other
   • Transaction Type: Sell
   • Same details as above, indicating a coordinated selling strategy among insiders.

Additional Notes

The volume of sell activity from OKLO insiders is particularly concerning, as it suggests potential internal knowledge of impending challenges or changes within the company.

Market Sentiment Analysis

The overwhelming sell activity compared to buy transactions indicates a bearish sentiment prevailing among insiders. The low buy-to-sell ratio of 0.05 reflects a lack of confidence in stock appreciation in the near term. The concentrated sell transactions by insiders of OKLO could signal anticipated challenges, potentially impacting market perception negatively.

Investment Opportunities

Despite the bearish outlook, selective buying opportunities may exist:

• NKE: With significant insider buying from high-profile directors, NKE could still present a strong long-term investment thesis, especially given its market position and brand strength.
• DMLP: The consistent purchases by Dorchester Minerals Operating LP might indicate a strategic accumulation of shares, which could signal confidence in future growth prospects.

Investors should monitor developments in companies with heavy insider selling, particularly OKLO, while keeping an eye on the implications of insider purchases as potential indicators of value.