Mark Jeffery Penn

Mark Jeffery Penn

CEO · Stagwell Inc

Rank #645 SEC EDGAR (United States) ↗ Files from United States

Details

Officer and board memberBusiness & Professional ServicesSTGWSEC CIK 0001771735

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Disclosed holdings
$216.0M
1-day change
▼ 1.46%
Positions on file
1
issuers disclosed in Forms 3/4/5 and Schedules 13D/G

Disclosed holdings over time 53 weekly points

What the 1 currently disclosed position would have been worth at each week’s closing price. A rising line means the shares got more valuable, not that this person bought more.

How the line is built

Share counts are as last reported to the SEC and held constant; only prices move.

2025-09-05$114.0M – $225.8M2026-09-04

Insider activity Mar 31, 2024 – Mar 11, 2026

Mark Jeffery Penn is recorded in filings to the U.S. SEC via EDGAR as officer and board member, and reported 16 transactions between Mar 31, 2024 and Mar 11, 2026. The buy and sell totals below count only codes P, S.

Why the other codes are excluded

Share awards (A), shares withheld to pay tax (F), option exercises (M) and gifts (G) also appear in the table, but they are consequences of a pay package or a private transfer, not a decision to buy or sell on the open market. Counting them would turn this into a compensation ranking.

Open-market buys (code P)
$96.1K
2 purchases on file priced rows only
Open-market sales (code S)
None
0 sales on file
All reported transactions
16
every code, including awards and exercises
Pattern
Net buyer in the final 12 months of the window
last 12 months of the window

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

5 insiders bought Stagwell Inc (STGW) shares worth $4,058,588 between May 9, 2025 and Jun 5, 2025

Cluster buying

5 different insiders made 8 open-market purchases of this company’s shares within a short window. Each row below is one reported trade.

5 insiders bought Stagwell Inc (STGW) shares worth $4,058,588 between May 9, 2025 and Jun 5, 2025
Date Insider Transaction Shares Price Value Filing
May 9, 2025 Mark Jeffery Penn P Open-market purchase 10,000 held after: 9,004,055 $4.74 $47,400 SEC filing ↗
May 9, 2025 Eli Samaha P Open-market purchase 200,903 held after: 7,348,565 $4.76 $956,298 SEC filing ↗
May 21, 2025 Desiree G. Rogers P Open-market purchase 2,086 held after: 162,014 $4.75 $9,909 SEC filing ↗
May 21, 2025 Mark Jeffery Penn P Open-market purchase 10,000 held after: 9,014,055 $4.87 $48,700 SEC filing ↗
Jun 3, 2025 Jay Leveton P Open-market purchase 2,500 held after: 2,693,720 $4.06 $10,150 SEC filing ↗
Jun 4, 2025 Charlene Barshefsky P Open-market purchase 24,350 held after: 185,316 $4.31 $104,949 SEC filing ↗
Jun 4, 2025 Eli Samaha P Open-market purchase 425,757 held after: 7,774,322 $4.27 $1,817,982 SEC filing ↗
Jun 5, 2025 Eli Samaha P Open-market purchase 240,000 held after: 8,014,322 $4.43 $1,063,200 SEC filing ↗

Total of the rows above: $4,058,588, in the currency the filings report.

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Reported transactions

Price 0.00 is a real reported figure on gifts (G) and share awards (A) — not a missing number. The 22 most recent rows are grouped into 19 lines by date, company and transaction type — open a line to see every lot with its own source link.

How to read this list

Every row is one line of one Form 4 or Form 5, with the filing it came from. Where the record carries no price at all we leave the cell empty instead of guessing one.

The shares and money on a grouped line add up only the lots listed inside that line, and only when every one of them carries the figure. Where a group mixes more than one reporting currency we leave the money blank rather than convert — no source publishes the rate that conversion would need.

  1. Stagwell Inc STGW D Disposition to the issuer × 2not a buy/sell decision 575,000 shares $5.27M
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    75,000 $9.17 $687.8K SEC filing ↗
    500,000 $9.17 $4.59M SEC filing ↗
  2. Stagwell Inc STGW M Option exercise or conversion × 2not a buy/sell decision 575,000 shares $4.64M
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    75,000 $6.79 $509.3K SEC filing ↗
    500,000 $8.27 $4.14M SEC filing ↗
  3. Stagwell Inc STGW P Open-market purchase 20,000 shares $117.6K at $5.88 SEC filing ↗
  4. Stagwell Inc STGW A Grant or awardnot a buy/sell decisionreported at zero 389,432 shares $0 at $0.00 SEC filing ↗
  5. Stagwell Inc STGW D Disposition to the issuernot a buy/sell decision 4,572,207 shares $28.21M at $6.17 SEC filing ↗
  6. Stagwell Inc STGW F Shares withheld for taxesnot a buy/sell decision 75,447 shares $395.3K at $5.24 SEC filing ↗
  7. Stagwell Inc STGW D Disposition to the issuernot a buy/sell decisionreported at zero 57,689 shares $0 at $0.00 SEC filing ↗
  8. Stagwell Inc STGW F Shares withheld for taxesnot a buy/sell decision 229,529 shares $1.11M at $4.82 SEC filing ↗
  9. Stagwell Inc STGW G Bona fide giftnot a buy/sell decisionreported at zero 1,750,000 shares $0 at $0.00 SEC filing ↗
  10. Stagwell Inc STGW P Open-market purchase 10,000 shares $48.7K at $4.87 SEC filing ↗
  11. Stagwell Inc STGW P Open-market purchase 10,000 shares $47.4K at $4.74 SEC filing ↗
  12. Stagwell Inc STGW J Other acquisition or dispositionnot a buy/sell decisionreported at zero 6,811,332 shares $0 at $0.00 SEC filing ↗
  13. Stagwell Inc STGW J Other acquisition or disposition × 2not a buy/sell decisionreported at zero 129,297,435 shares $0
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    122,671,034 $0.00reported at zero $0 SEC filing ↗
    6,626,401 $0.00reported at zero $0 SEC filing ↗
  14. Stagwell Inc STGW M Option exercise or conversionnot a buy/sell decisionreported at zero 151,648,741 shares $0 at $0.00 SEC filing ↗
  15. Stagwell Inc STGW F Shares withheld for taxesnot a buy/sell decision 191,354 shares $1.13M at $5.93 SEC filing ↗
  16. Stagwell Inc STGW D Disposition to the issuernot a buy/sell decisionreported at zero 106,746 shares $0 at $0.00 SEC filing ↗
  17. Stagwell Inc STGW F Shares withheld for taxesnot a buy/sell decision 54,817 shares $341.5K at $6.23 SEC filing ↗
  18. Stagwell Inc STGW A Grant or awardnot a buy/sell decisionreported at zero 191,733 shares $0 at $0.00 SEC filing ↗
  19. Stagwell Inc STGW F Shares withheld for taxesnot a buy/sell decision 162,122 shares $1.01M at $6.22 SEC filing ↗

Disclosed holdings

Shares is the amount on the form; value is that amount times the closing price shown. Rows with no closing price are left blank, so they may add up to less than the headline figure.

What is not counted here

Each row is one filing you can open. Private companies, real estate, bonds and crypto are not in SEC insider filings and are therefore not counted here.

Equity positions disclosed to the SEC, with the source filing behind each row.
Issuer Ticker Security Shares Close Value Form Reported Filing
Stagwell Inc STGW Class A Common Stock 24,625,558 $8.77 $216.0M 4 EDGAR ↗

Other insiders at the same companies

People who also file with the SEC at a company where Mark Jeffery Penn reports shares.

Sharing a filing does not mean they work together day to day — it means both names appear on the same issuer’s insider record.

Sources

The filings linked in the tables above are the sources for every figure on this page.

Portrait photograph: Stagwell Inc (company-published photograph). Original file page on stagwellglobal.com ↗

Think a number here is wrong? Open the linked filing and compare — how to report it.

Profile record last refreshed Sep 8, 2026.