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EdgarHawk

Michael George Rosenbaum

Chief Executive Officer

Director Officer

Latest: CEO selling · June 2026

9 filings analyzed · 1 company · Latest 2026-06-16

Companies

Company Buys Sells Direction
Guidewire Software, Inc. GWRE 0 13 Net selling

Activity

June 2026
medium
Sell
7,030 shares
$840,892
Significance 4/10

GWRE CEO sells 7,030 shares for $840,891.69 under 10b5-1 plan; stock -56.9% from high, -26.2% over 90 days.

Michael George Rosenbaum, who was CEO at the time of filing, executed two separate sales totaling 7,030 shares for $840,891.69 on June 15–16, 2026, as part of a pre-arranged 10b5-1 trading plan adopted on 2025-10-14. The blended average sale price of $119.61 occurs in a period when the stock trades at $117.46 (current price) and stands -56.9% from its 52-week high of $272.60, with a 90-day decline of -26.2%. At GWRE specifically, the insider's prior five sales have all followed negative 30-day patterns (-15.1%, -13.5%, +0.4%, -11.2%, -13.5%), and four of five showed negative 90-day returns, suggesting the stock often declines after his scheduled sells. This scheduled plan execution warrants attention given the stock's steep recent loss and the historical pattern of post-sale weakness at this ticker, though fundamental metrics (revenue growth +22.6%, $9.8B market cap) remain intact.

March 2026
medium
Sell
4,737 shares
$776,195
Significance 5/10

CEO Michael George Rosenbaum sells 4,737 GWRE shares at $163.86; stock now $159.27, -39.2% from 52-week high.

Rosenbaum sold 4,737 shares (4.7K shares) for $776,194.87 ($776.2K) at $163.86 on 2026-03-17, reducing his stake from 225,943 shares (225.9K shares) to 221,206 shares (221.2K shares), a -2.1% net reduction. The current price of $159.27 is -39.2% from the 52-week high of $261.88, and the stock has declined -19.3% over 90 days despite a +25.4% 30-day bounce. His prior trades at GWRE show mixed timing results: 3 of 5 prior sells were well-timed at the 90-day mark, but the most recent sale on 2025-12-16 had a -13.5% 30-day return and the sale on 2025-03-18 was followed by a +33.9% 90-day gain, suggesting inconsistent predictive value. The company's fundamentals show strong revenue growth of +22.6% year-over-year and positive net income of $60,110,000.00 ($60.1M) on revenue of $359,095,000.00 ($359.1M), though the P/E of 71.10 reflects elevated valuation expectations relative to current earnings.

December 2025
medium
Sell
6,015 shares
$1,155,338
Significance 4/10

CEO Rosenbaum sold 6,015 shares of GWRE at $192.08 on 2025-12-16 for $1,155,337.74; stock down 26.0% from 52-week high.

Michael George Rosenbaum, CEO of Guidewire Software, sold 6,015 shares (6.0K shares) at $192.08 on 2025-12-16, reducing his holdings by 2.4% to 240,743 shares. The sale occurred as GWRE trades 26.0% below its 52-week high of $261.88 and has declined 21.4% over the past 90 days. Historically, Rosenbaum's cross-ticker track record shows a 90-day well-timed rate of 27.27% across 11 prior sells; however, at GWRE specifically, only 2 of 5 prior sells were well-timed at the 90-day mark, suggesting inconsistent predictive value at this ticker. The current sale occurs against a backdrop of strong fundamentals—revenue of $332,639,000.00 in the latest quarter, net income of $31,308,000.00, and 22.6% annual revenue growth—yet the elevated P/E of 179.56 reflects the market's pricing in of future growth expectations that stock performance has recently failed to deliver.

September 2025
medium
Sell
30,317 shares
$7,362,965
Significance 6/10

CEO Michael Rosenbaum sells 30,317 shares of GWRE for $7.4M at $242.87; holds 264,958 shares post-transaction.

CEO Rosenbaum sold 30,317 shares at $242.87, representing a -10.3% reduction from his 295,275 pre-transaction holdings. The sale occurred when GWRE traded at $242.87, approximately 5.7% below its 52-week high of $261.88, though the stock has surged 14.8% over the prior 30 days. Rosenbaum's prior trades at GWRE show mixed timing: his most recent pair of sales in June 2025 were followed by 30-day declines of -11.2% and -13.5%, but his earlier sales in March and December 2025 saw the stock rise substantially, with 90-day returns of +33.9% and +36.8%. This sale represents a substantial reduction in absolute share count from a CEO with significant holdings, but the insider retains 264,958 shares and the transaction occurs at a price near but not at the 52-week peak.

June 2025
medium
Sell
7,325 shares
$1,831,300
Significance 4/10

CEO Michael Rosenbaum sold 7,325 shares of GWRE for $1,831,299.65 across two trades on 2025-06-16 and 2025-06-17.

Michael Rosenbaum, Chief Executive Officer of Guidewire Software, executed 2 separate sales totaling 7,325 shares for $1,831,299.65, reducing his holdings by 3.0% from 245,993 shares to 238,668 shares. The blended average transaction price of $250.01 sits near the current price of $246.79, suggesting the sales occurred close to prevailing market levels. Against his cross-ticker track record showing an average 90-day return of +20.5% after sells with a 12.50% well-timed rate, this insider has historically been poorly timed at this ticker in particular: his prior 5 sales at GWRE show only 1 well-timed outcome at the 90-day mark, with recent sales on 2025-03-18 and 2025-03-17 followed by strong 90-day gains of +33.9% and +36.8%, indicating he sold before substantial rallies. The company trades at a P/E of 601.93 and was unprofitable over its most recent full fiscal year, though revenue grew 8.3% year-over-year and the stock has rallied 27.6% over 90 days—a context in which the CEO's sell appears contrarian to recent momentum.

March 2025
medium
Sell
6,337 shares
$1,194,176
Significance 5/10

CEO Michael Rosenbaum sells 6,337 shares at $188.44 avg for $1,194,175.96; holds 262,793 post-sale

Michael Rosenbaum, CEO of Guidewire Software, executed 2 separate sales totaling 6,337 shares for $1,194,175.96 on March 17–18, 2025, at prices of $185.03 and $189.41. This reduces his holdings by 2.4% to 262,793 shares. The sales occurred when the stock was trading near recent highs ($196.26 currently, just 10.1% below the 52-week peak of $218.22), and the company remains unprofitable with net income of $-37,277,000.00 over its most recent full fiscal year despite posting 8.3% annual revenue growth to $289,480,000.00. Rosenbaum's prior 5 sales at GWRE have shown mixed timing outcomes, with only 1 of 5 well-timed at the 90-day mark, suggesting no strong pattern of prescient exits at this holding. The current sale occurs in a context of elevated valuation and persistent unprofitability, but the modest scale (2.4% portfolio reduction) and lack of any prior clear pattern of well-timed selling at this ticker limits the strength of any directional signal from this transaction alone.

December 2024
medium
Sell
5,932 shares
$1,014,724
Significance 4/10

CEO Rosenbaum sells 5,932 shares of GWRE at $171.06; stock down 10.1% in 30 days from sale date.

CEO Michael George Rosenbaum sold 5,932 shares on 2024-12-17 at $171.06, reducing his holdings by 2.1% to 281,730 shares total. The stock has declined 10.1% over the 30-day period following the sale, and currently trades at $174.52 (still below the 52-week high of $207.12 by 15.7%). At the GWRE ticker level, Rosenbaum's prior five sales showed mixed timing: three generated positive 90-day returns (poorly-timed sells), while one produced a negative 90-day return (well-timed). His cross-ticker track record shows 5 prior sells with a 20.00% well-timed rate and an average 90-day return of +16.2%, indicating that his sells historically have not preceded sharp declines. The company's P/E of 484.78 and full-year net loss (despite quarterly net income of $9.1M) reflect valuation and profitability concerns that may warrant investor scrutiny of execution trends.

September 2024
low
Sell
23,379 shares
$4,024,919
Significance 4/10

GWRE CEO Rosenbaum sells 23,379 shares at $172.16; stock near 52-week high, up 27.2% in 90 days, company unprofitable.

Michael George Rosenbaum, CEO of Guidewire Software, sold 23,379 shares at $172.16 on 2024-09-17, reducing his holdings from 311,041 to 287,662 shares. The sale occurs near the 52-week high of $173.03 as the stock has appreciated 27.2% over the prior 90 days. At Guidewire specifically, Rosenbaum's four prior open-market sales (2023–2024) produced mixed timing outcomes: two followed by strong 90-day gains (31.0% and 28.4%), one by a modest 9.4%, and one by a slight 2.9% decline, with a 0% "well-timed rate" indicating none preceded material downturns. The company remains unprofitable with net income of $-5,478,000.00 over the latest fiscal year, though revenue of $240,678,000.00 reflects 8.3% annual growth. The sale signal is muted: the CEO's 7.5% reduction in stake at a cyclical peak does not clearly separate conviction from routine liquidity management, particularly given the pattern of prior sales that have typically not preceded downturns.

June 2024
low
Sell
5,582 shares
$750,988
Significance 4/10

CEO Michael George sold 5,582 shares of GWRE at $134.54 for $750,988.33 on 2024-06-18

Michael George, Chief Executive Officer of Guidewire Software, sold 5,582 shares at $134.54, reducing his holdings by 2.3% to 239,793 shares. At the time of sale, the stock was trading near its 52-week high ($135.51 current vs $69.00–$136.00 range), and the company was unprofitable with a net loss of $-5,478,000 in its most recent quarter despite revenue growth of 11.4%. Examining his same-ticker history at GWRE, all three prior sales in 2023 resulted in positive 90-day returns (8.0%, 9.4%, and 31.0%), meaning the stock appreciated after each sale—a pattern of poorly-timed exits from a valuation perspective. This transaction follows the established pattern, with the stock subsequently up 19.6% over 90 days post-transaction, suggesting the sale again preceded significant gains.

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