Form 4: Stagwell CEO Mark Penn Reports Stock Changes

Stagwell Inc. CEO Mark Penn reported changes in his beneficial ownership, including forfeiture of restricted stock and shares withheld for taxes.

Summary

• Mark Penn, CEO, Director, and 10% owner of Stagwell Inc., reported changes in his beneficial ownership of Class A Common Stock.
• On March 3, 2026, 57,689 shares of restricted stock were forfeited to the issuer due to partial vesting of a three-year financial performance-based award.
• On the same date, 229,529 shares were withheld by the issuer to cover tax withholding requirements related to the nonreportable vesting of restricted stock, at a price of $4.82 per share.
• Following these transactions, Mark Penn directly beneficially owns 27,273,212 shares of Class A Common Stock.
• Additionally, 2,000,000 shares are indirectly beneficially owned through The Stagwell Group LLC, which were transferred on December 15, 2025, as previously reported in an Amendment No. 18 to Schedule 13D on January 13, 2026.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral filing, primarily reporting routine insider transactions related to equity compensation, including a partial forfeiture and tax withholding, which are common occurrences.

Positives

• The vesting of restricted stock awards indicates that performance conditions were at least partially met, leading to the reported transactions.

Negatives

• Forfeiture of 57,689 shares of restricted stock due to partial vesting suggests that not all performance conditions for the three-year award were fully met.

Future Outlook

NA

Industry Context

StockSavvy.ai notes that Form 4 filings are routine disclosures for corporate insiders, providing transparency into their ownership changes. These transactions, involving restricted stock vesting and tax withholding, are common events for executives receiving equity compensation.

Related Party Transactions

• Transfer of 2,000,000 Class A Common Stock shares from Mark Penn to The Stagwell Group LLC, an entity he controls, previously reported on January 13, 2026.

Stakeholder Impact

• Shareholders: Provides transparency into insider ownership changes, which can influence investor sentiment. The forfeiture might slightly concern some regarding performance, but the tax withholding is routine.

Key Dates

Recommendation

This Form 4 details routine insider transactions related to equity compensation, including a partial forfeiture of restricted stock and shares withheld for tax purposes. These events are standard for executives and do not provide significant new information to warrant a change in investment thesis. The overall impact on the company's fundamentals or future prospects is minimal, suggesting a "hold" position is appropriate.

Keywords

Stagwell Inc., STGW, Mark Penn, CEO, Director, 10% Owner, Beneficial Ownership, Restricted Stock, Stock Forfeiture, Tax Withholding, Insider Trading, Form 4