How does the proliferation of social media affect the definition of material nonpublic information, and when does the mosaic theory apply?

The intersection of social media and material nonpublic information (MNPI) creates challenging gray areas for investment professionals. The SEC's framework for determining when information is 'public' has evolved, but social media has outpaced regulatory clarity.\n\nWhen Is Social Media Disclosure 'Public'?\n\nThe SEC's 2013 Netflix/Reed Hastings guidance established that social media can be a legitimate disclosure channel if:\n1. The company has notified investors that it may use a specific social media channel for material disclosures\n2. The channel is broadly accessible to the investing public\n3. The information reaches a wide audience simultaneously\n\n| Channel | Likely Public? | Conditions |\n|---|---|---|\n| CEO's verified public Twitter/X | Yes | If pre-designated as disclosure channel |\n| Company LinkedIn page | Yes | If investors are directed there |\n| Private Discord/Telegram group | No | Not broadly accessible |\n| Reddit AMA by CFO | Possibly | Depends on audience and notification |\n| Employee's personal Instagram | No | Not designated channel |\n\n`mermaid\ngraph TD\n A[\"Information Source\"] --> B{\"Is source broadly
accessible to public?\"}\n B -->|\"Yes\"| C{\"Has company designated
this channel for disclosures?\"}\n B -->|\"No
(private group,
DM, password-protected)\"| D[\"Information is NOT public
Trading on it may
violate insider trading laws\"]\n C -->|\"Yes\"| E[\"Information is PUBLIC
once posted and
reasonably disseminated\"]\n C -->|\"No\"| F{\"Has information
been widely shared?\"}\n F -->|\"Yes (viral)\"| G[\"Likely PUBLIC
but timing matters\"]\n F -->|\"No\"| D\n`\n\nMosaic Theory:\n\nThe mosaic theory protects analysts who combine multiple pieces of individually nonmaterial, public (or non-MNPI) information to reach a material conclusion. The resulting investment thesis is the analyst's intellectual property, not insider trading.\n\nRequirements for Mosaic Theory Protection:\n1. Each individual piece of information must be either public or immaterial\n2. The analyst's own analysis and expertise create the material insight\n3. No single source provides material nonpublic information\n4. The process must be documented to demonstrate the analytical chain\n\nWorked Example:\n\nAnalyst Ramona at Oakfield Research covers Kendrick Pharmaceuticals. She pieces together:\n\n- Public: FDA advisory committee calendar shows Kendrick's drug review date (public filing)\n- Nonmaterial: A former Kendrick scientist (now at a university) mentions at a public conference that the drug's Phase III data was 'interesting' (nonspecific, nonmaterial)\n- Public: LinkedIn shows Kendrick has hired 15 new sales reps in the past month (public profiles)\n- Public: A supplier's earnings call mentions increased orders from a 'major pharma client' (public, doesn't name Kendrick)\n- Ramona's analysis: Combining these signals suggests a likely FDA approval and commercial launch preparation\n\nRamona's recommendation to buy Kendrick stock is protected by the mosaic theory because each input was either public or individually immaterial. Her analytical skill created the material conclusion.\n\nWhat Would Violate the Law:\n- If a Kendrick board member told Ramona directly that the FDA approved the drug (MNPI from an insider)\n- If Ramona accessed a private Kendrick Slack channel where employees discussed FDA results\n- If the university scientist shared specific Phase III efficacy data under NDA\n\nKey Exam Points:\n- Social media does not automatically make information public\n- The SEC applies a 'broad dissemination' standard\n- Mosaic theory requires that no individual input is itself MNPI\n- CFA Standard II(A) prohibits trading on MNPI; the mosaic theory is a recognized defense\n\nStudy MNPI and ethics in our CFA Ethics course.