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EdgarHawk

Armstrong Brian

Chairman and CEO

Director Officer 10% Owner
43 filings analyzed · 1 company · Latest 2026-01-07

Companies

Company Buys Sells Direction
Coinbase Global, Inc. COIN 0 329 Net selling

Activity

January 2026
2026-01-07 Coinbase Global, Inc. COIN
high
Sell
40,000 shares
$9,958,268
Significance 8/10

Coinbase CEO Armstrong sells entire stake: 40,000 shares ($10.0M) across 3 separate transactions on 2026-01-05.

Armstrong, Coinbase's Chairman and CEO, liquidated his full equity position through 3 separate sales totaling 40,000 shares for $9,958,267.58 on 2026-01-05, executed at a blended average price of $248.96. This complete exit at the company's top ranks stands in stark contrast to his earlier selling pattern: just 14 days prior (2025-12-22), he had executed 5 separate sales at COIN, and his cross-ticker track record shows 20 prior sells with an average 30d return of -9.6%. The current stock price of $245.93 is -41.4% from the 52-week high of $419.78, and down -36.4% over 90 days, signaling material weakness in the name. While the company maintains strong fundamentals—$1.9B quarterly revenue, $432.6M net income, and +111.2% annual revenue growth—the complete liquidation of the CEO's personal holdings during a period of sustained price decline and coupled with recent repeated selling activity raises questions about divergence between management's public commitment and personal conviction in the stock.

December 2025
2025-12-23 Coinbase Global, Inc. COIN
high
Sell
40,000 shares
$10,005,879
Significance 7/10

CEO Armstrong sells entire 40,000-share COIN stake for $10.0M (blended avg $250.15) on 2025-12-22

Brian Armstrong, Chairman and CEO of Coinbase, executed 5 separate sales totaling 40,000 shares for $10,005,878.96 on 2025-12-22, reducing his holdings to zero (down 100.0% from pre-transaction). The sales occurred at prices ranging from $248.61 to $252.30 across the trading day. This represents a complete liquidation of Armstrong's direct COIN equity stake coinciding with the stock trading at $242.30 currently, down 42.3% from its 52-week high of $419.78, though the 30-day change remains modestly positive at +0.8%. Armstrong's cross-ticker sell history shows an average 30-day return of -12.0% across 20 prior transactions; notably, his 5 most recent COIN trades on 2025-12-08 (also sales) remain outside the measurable window. The complete elimination of Armstrong's holding removes the most senior insider's skin in the game during a period of significant volatility for Coinbase equity, meriting investor attention given the company's strong FY fundamentals (111.2% annual revenue growth, $432.6M net income, P/E of 20.23).

2025-12-10 Coinbase Global, Inc. COIN
high
Sell
40,000 shares
$10,292,234
Significance 7/10

Coinbase CEO Brian Armstrong sells entire 40,000-share position for $10.3M across five transactions on 2025-11-26

Brian Armstrong, Coinbase's Chairman and CEO, executed 5 separate sales totaling 40,000 shares for $10,292,234.18 on 2025-11-26 at prices ranging from $255.47 to $259.15 (blended average $257.31). This represents a complete liquidation of his holdings (100.0% reduction from pre-transaction position of 40,000 shares to zero post-transaction). The sales occurred when Coinbase traded at those prices on 2025-11-26; the current price of $275.09 is 6.9% above the blended average transaction price. Across his prior open-market history (20 prior sells at all tickers), Armstrong's average 30-day return post-sell is -15.3%. At Coinbase specifically, his 5 prior trades show recent sell activity on 2025-12-08 with outcomes not yet measurable, preventing assessment of timing accuracy at this ticker. The company fundamentals show strong performance: annual revenue growth of +111.2%, quarterly revenue of $1,868,693,000.00, net income of $432,552,000.00, and a market cap of $73,926,586,240.00. The total liquidation of the CEO's personal holdings warrants scrutiny from investors monitoring executive conviction and capital deployment signals.

2025-12-10 Coinbase Global, Inc. COIN
high
Sell
40,000 shares
$10,954,537
Significance 8/10

Coinbase CEO Brian Armstrong sells entire 40,000 COIN holdings for $11.0M across 6 separate transactions on 2025-12-08

Brian Armstrong, Chairman and CEO of Coinbase, executed 6 separate sales totaling 40,000 shares for $10,954,537.04 at an average price of $273.86, completely exiting his equity position. This full liquidation is notable against Coinbase's strong recent fundamentals: annual revenue growth of +111.2%, net income of $432,552,000.00, and a P/E of 22.96. Armstrong's cross-ticker track record shows 20 prior sells with an average 30-day return of -15.6%, while COIN itself has declined -13.5% over the past 30 days and -15.1% over 90 days. The CEO's complete divestiture of his holdings, combined with his historical pattern of sells preceding downward price movement and the stock's -34.5% pullback from its 52-week high, represents a significant removal of insider equity alignment during a period of strong operating performance but market weakness.

November 2025
2025-11-19 Coinbase Global, Inc. COIN
high
Sell
40,000 shares
$10,874,861
Significance 8/10

Coinbase CEO Armstrong sells entire stake: 40,000 shares for $10.9M at $271.87 avg on 2025-11-17; stock down 25.2% in 30d.

Armstrong Brian, Chairman and CEO of Coinbase Global, Inc., executed 6 separate sales totaling 40,000 shares for $10,874,860.98, completely liquidating his holdings. The sales occurred at prices ranging from $271.14 to $275.91 with a blended average of $271.87 on 2025-11-17. This complete exit coincides with significant recent price weakness: the stock has declined 25.2% over the prior 30 days and currently trades at $257.29, 38.7% below its 52-week high of $419.78. His cross-ticker track record shows 20 prior sales with an average 30-day return of -12.8%, suggesting a pattern of exiting before declines. The complete liquidation of the CEO's personal stake, combined with recent sales on 2025-11-10 and the current steep drawdown, warrants attention to whether this reflects forward-looking concerns about near-term execution or valuation at a company with strong recent fundamentals (111.2% annual revenue growth, P/E of 21.48).

2025-11-14 Coinbase Global, Inc. COIN
high
Sell
25,000 shares
$8,016,807
Significance 7/10

CEO Armstrong sold 25,000 shares for $8.0M (blended avg $320.67) on 2025-11-10; stock down -32.4% from 52-wk high to $284.00

Brian Armstrong, CEO of Coinbase, executed 6 separate sales totaling 25,000 shares on 2025-11-10, generating $8,016,806.83 at a blended average price of $320.67. This represents a -97.9% reduction versus his pre-transaction holdings of 25,526 shares, leaving him with 526 shares post-transaction. The timing is notable: Armstrong completed this large divestment when COIN was trading at prices between $319.85 and $324.37, yet the stock has since declined to $284.00 (currently -32.4% from the 52-week high). His cross-ticker track record shows 20 prior sells averaging a -5.0% 30-day return, though timing outcomes at the 90-day horizon for prior COIN sales remain unmeasurable (5 prior sells on 2025-11-03 have no 30d or 90d return data yet). The company itself shows strong fundamentals: revenue of $1,868,693,000.00 (latest quarter), net income of $432,552,000.00, and annual revenue growth of +111.2% year-over-year. The filing contains a derivative conversion; the insider's true position may extend beyond the Table I shares reported here.

2025-11-05 Coinbase Global, Inc. COIN
high
Sell
25,000 shares
$8,437,156
Significance 6/10

Armstrong sells 25,000 COIN shares at $335–$340 blended avg $337.49; stock now at $319.30, off 17.3% in 30 days

Armstrong (Chairman and CEO) executed 6 separate sales totaling 25,000 shares for $8,437,155.95 on 2025-11-03, reducing his holdings to 526 shares (from 25.5K). The blended average transaction price of $337.49 sits above the current price of $319.30 (-23.9% from the 52-week high). Notably, the 30-day change is -17.3%, suggesting the stock declined materially after these transactions. His cross-ticker track record shows 20 prior sells with an average 30-day return of +5.1%, though this most recent sale at COIN is part of a pattern of 5 separate sells within days (all on 2025-10-13 and 2025-11-03), indicating sustained reduction in his stake. The company's fundamentals remain robust with annual revenue growth of +111.2% and a P/E of 26.65 against an $85.8B market cap, suggesting no underlying deterioration of business quality at the time of sale. The FLAG note indicates this conversion of derivative securities warrants examination of Form 4 Table II (not yet fully populated in our database), meaning the 526 post-transaction shares may not represent Armstrong's total position.

October 2025
2025-10-15 Coinbase Global, Inc. COIN
high
Sell
25,000 shares
$9,033,103
Significance 7/10

CEO Armstrong sells 25,000 COIN shares for $9.0M at avg $361.32; retains 526 shares post-transaction

Brian Armstrong, Coinbase's Chairman and CEO, executed 6 separate sales totaling 25,000 shares for $9,033,102.94 at prices ranging from $359.49 to $364.17 on 2025-10-13. This represents a 97.9% reduction in his reported open holdings, leaving 526 shares post-transaction. The timing of the sale—at a blended average price of $361.32—occurred as COIN trades at $336.30, down 19.9% from its 52-week high of $419.78 and down 18.1% over the past 90 days, suggesting the insider executed this liquidation before further deterioration. Across Armstrong's cross-ticker track record, his 20 prior sells averaged a +4.0% 30-day return, indicating historically poor sell timing; however, at this specific ticker, his most recent measurable same-ticker sale on 2025-09-15 posted a +4.1% 30-day return. A FLAG indicates this filing involves conversion of derivative securities; the insider's full position in Table II (derivative holdings) is not yet populated in our database, so the 526 shares remaining in Table I may not represent his complete economic position.

2025-10-06 Coinbase Global, Inc. COIN
high
Sell
25,000 shares
$8,886,660
Significance 6/10

CEO Armstrong sells 25,000 COIN shares for $8.9M; post-conversion holding drops to 526 shares (-97.9%)

Armstrong Brian (Chairman and CEO) executed 4 separate sales totaling 25,000 shares for $8,886,659.61 on 2025-10-02, with a blended average price of $355.47. This represents a -97.9% reduction in his open-market holdings, leaving 526 shares post-transaction. The current stock price of $386.07 sits -8.0% from the 52-week high of $419.78 and is +29.1% above the 30-day prior level, indicating strong recent momentum at the time of sale. The company's fundamentals show robust performance: $1.5B revenue last quarter with net income of $1.4B and annual revenue growth of +111.2%, paired with a P/E of 37.05. However, this filing contains a derivative-conversion transaction; the Form 4 Table II (derivative securities) is not yet populated in the database, meaning the reported 526 shares_after do not capture Armstrong's full position in derivative or converted securities. The near-complete reduction in tabulated holdings warrants monitoring of the derivative position to establish the insider's actual total exposure post-conversion.

September 2025
2025-09-17 Coinbase Global, Inc. COIN
high
Sell
25,000 shares
$8,057,113
Significance 7/10

Coinbase CEO Armstrong sells 25,000 shares for $8.1M across 3 transactions on 2025-09-15, retaining just 526 shares post-sale from derivative conversion.

Armstrong executed 3 separate sales totaling 25,000 shares for $8,057,112.69 at a blended average price of $322.28. This represents a -97.9% reduction in his pre-transaction COIN holdings, leaving only 526 shares post-sale. However, a DERIVATIVE-CONVERSION FLAG indicates this is a conversion of derivative securities—the insider's actual position includes holdings in Table II (derivatives) not yet populated in this database, so the 526 shares_after does not represent his total position. The sales occurred as COIN trades near its 52-week midpoint (current $320.56 vs 52-week range $151.47–$419.78), down 23.6% from the 52-week high. Armstrong's cross-ticker track record shows an average 30-day return of -8.0% after prior sales, though his same-ticker COIN trade outcomes are mixed and largely unmeasurable at this early stage (most recent sales on 2025-09-04 and 2025-08-12 lack 90-day outcome data). The company's fundamentals remain robust: $1.5B quarterly revenue with +111.2% annual growth and $1.4B net income, though valuation stands elevated at a P/E of 30.76.

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