GKOS GLAUKOS Corp Insider Trading

CFO Alex R. Thurman sold 10,000 shares of GKOS at $155.00 under pre-arranged 10b5-1 plan; retains 43.7K shares plus 10,000 stock options.

CFO Alex R. Thurman executed a scheduled sale of 10,000 shares at $155.00, reducing his non-derivative holdings by 18.6% to 43.7K shares, conducted under a pre-arranged 10b5-1 trading plan adopted on 2025-12-15. The transaction occurred near the 52-week high ($156.60, within 2.5%), and the stock has appreciated 20.4% over the prior 30 days and 26.7% over 90 days. Thurman maintains 10,000 stock options and retains meaningful non-derivative exposure; the planned nature of this trade reflects administrative portfolio management rather than a discretionary response to company prospects. GLAUKOS remains unprofitable (net income $-19.8M in the latest period) despite strong revenue growth of 32.3% year-over-year and a market cap of $9.0B, a context investors should monitor as the company scales.

CFO Alex Thurman sells 10,000 GKOS shares ($1.5M) under 10b5-1 plan; retains 43,681 shares + 20,000 stock options.

Alex R. Thurman, SVP & Chief Financial Officer, sold 10,000 shares at $150.00 on 2026-07-06 under a pre-arranged 10b5-1 trading plan adopted on 2025-12-15—a scheduled, non-discretionary transaction reducing his non-derivative holdings by 18.6% from 53,681 to 43,681 shares. The sale occurred with GKOS stock at 1.1% below its 52-week high of $154.61 and follows strong recent momentum (+25.4% over 30 days, +28.0% over 90 days), yet represents part of a structured divestment program rather than an opportunistic decision. Materially, Glaukos reported revenue of $150.6M in the latest quarter and remains unprofitable with negative net income of $-19.8M for the full fiscal year, despite robust annual revenue growth of +32.3%—a company in expansion mode but burning cash. Thurman retains meaningful equity exposure through 43,681 non-derivative shares and 20,000 stock option holdings, preserving significant upside participation in the company's turnaround trajectory.

GKOS President & COO sells nearly 20K shares at peak valuation, reducing stake by one-fifth amid unprofitable fundamentals.

Gilliam Joseph E, the company's President & COO, sold roughly one-fifth of his holdings during a period when the stock has recovered sharply and sits just below its recent highs. The sale amount exceeded $2.8 million, suggesting either portfolio rebalancing or a deliberate reduction in personal exposure at an attractive entry point for exit. This is notable because it occurs while Glaukos remains unprofitable on an annual basis despite strong revenue growth—the company is investing heavily but not yet converting that growth into earnings. The timing, combined with the stake reduction, suggests the COO may be taking profits after a significant run-up rather than expressing confidence in near-term fundamentals. Investors should weigh whether this reflects routine diversification by a long-term executive or a signal that value looks fully priced at current levels for someone with intimate knowledge of the business.

CFO exercises 10,000 shares and sells same-day total for $1.4M; 34th open-market sale in 36 months.

Thurman Alex R., the company's SVP and Chief Financial Officer, exercised 10,000 shares at $38.68 and sold the identical quantity the same day at $140.00—a transaction pattern that nets zero share change but generates liquidity of $1.4 million. This same-day exercise-and-sell is his 34th open-market sale over the past 36 months, with no open-market purchases in that window; the activity reflects a consistent pattern of converting equity awards to cash rather than a sudden conviction shift. The stock trades roughly 5% below its 52-week high and has posted strong gains over the prior 90 days, but the company remains unprofitable year-to-date with a net loss, despite recent revenue growth acceleration. The CFO's filing history shows this is routine equity-conversion activity, not a change in insider positioning.

Director Aimee S. Weisner sold 15,000 shares of GKOS for $1.8M across 4 separate transactions on 2026-02-19

Director Aimee S. Weisner executed 4 separate sales totaling 15,000 shares for $1,760,761.43 at prices ranging from $115.69 to $118.56, reducing her holdings by 44.4% from 33,806 to 18,806 shares. The blended average transaction price of $117.38 is materially below the current price of $120.41, indicating the sales occurred during a price dip—the stock is currently -25.0% from its 52-week high of $160.58. While her prior open-market sell at GKOS (2024-08-08) returned +17.2% over 90 days, this cross-ticker track record shows only 0.00% well-timed rate among her past sells, meaning prior dispositions have not preceded declines. The company posted a net income of $-16,231,000.00 despite revenue of $133,537,000.00 with annual growth of +32.3%, so this large disposition by a director occurs in the context of profitability challenges rather than fundamental strength.

GKOS President & COO sells 10,498 shares for $1.3M at avg $127.68, post-trade holdings 92,366 shares

Gilliam Joseph E (PRESIDENT & COO) executed 4 separate sales on 2026-01-22 totaling 10,498 shares for $1,340,379.78. The blended average price of $127.68 compares to a current price of $124.27, placing the transaction 22.9% below the 52-week high of $161.22. His post-transaction holdings of 92,366 shares represent a -10.2% reduction from pre-transaction levels. GKOS is currently unprofitable with annual net income of $-16,231,000.00 against revenue of $133,537,000.00, though the company posted +21.8% annual revenue growth. His cross-ticker track record shows 18 prior sells with a 90-day well-timed rate of 6.25%, while at GKOS specifically, 0 of 3 prior measurable sells were well-timed at the 90-day mark.

Director Marc Stapley sold 15,000 shares for $1,915,576.23 under pre-arranged 10b5-1 plan

Marc Stapley, a director at GLAUKOS Corp (GKOS), executed 5 separate sales totaling 15,000 shares for $1,915,576.23 on 2026-01-22, reducing his holdings from 52,449 to 37,449 shares. The sales occurred at prices ranging from $126.07 to $129.78, with a blended average price of $127.71. This transaction was conducted under a pre-arranged 10b5-1 trading plan adopted on 2025-06-04, meaning the sales were scheduled and not discretionary decisions. Director Stapley retains 37,449 shares post-transaction, maintaining meaningful equity exposure to the company.

GKOS President & COO sold 4,502 shares at $124.65 on 2026-01-21; holds 92,366 post-transaction; stock now at $119.98.

Gilliam Joseph E, serving as President & COO, sold 4,502 shares at $124.65 for a total value of $561,174.30, reducing his holdings by 4.6% to 92,366 shares. At the transaction price of $124.65, the sale occurred 30.6% above the current price of $119.98 and 22.7% below the 52-week high of $161.22. His cross-ticker track record shows prior sells have averaged a 90-day return of +17.6%, indicating he historically has sold before subsequent stock appreciation—a pattern of poorly-timed exits. At GKOS specifically, his most recent measurable prior sale on 2025-11-18 returned +25.8% over 30 days, showing the stock continued rising after he sold. The company remains unprofitable with net income of $-16,231,000.00 against quarterly revenue of $133,537,000.00, though annual revenue growth reached +21.8%. The insider's consistent pattern of selling into strength rather than weakness suggests portfolio management rather than a bearish signal.

GKOS CEO Burns sold 275,000 shares for $31,625,000 in 2 scheduled transactions via 10b5-1 plan

Chairman & CEO Thomas William Burns executed 2 separate sales totaling 275,000 shares (275.0K shares) for $31,625,000.00 at $115.00 per share on 2026-01-08 and 2026-01-16, reducing his holdings from 428,775 shares to 153,775 shares. This represents a -64.1% reduction in his pre-transaction stake. The transaction was conducted pursuant to a 10b5-1 trading plan adopted on 2025-06-10, meaning the sales were scheduled and pre-arranged rather than discretionary. With the CEO retaining 153,775 shares post-sale, he maintains a material ongoing equity interest despite the substantial reduction in his holdings relative to prior position.

GKOS President & COO Gilliam sold 19,340 shares at $90.00 on 2025-11-18; retains 92,366 shares. Stock -41.0% from 52-week high.

Gilliam Joseph E sold 19,340 shares for $1,740,600.00 at $90.00, reducing his position by 17.3% while retaining 92,366 shares. The timing occurs at $90.00, significantly below the 52-week high of $161.22 (-41.0%), though the stock has risen +25.5% over the prior 30 days. His cross-ticker track record shows 16 prior sells with an average 90-day return of +11.0% and a well-timed rate of 6.25%, while his GKOS-specific history of 5 prior sells yielded 0 well-timed trades at the 90-day mark. The underlying company remains unprofitable with net income of $-16,231,000.00 on quarterly revenue of $133,537,000.00, despite annual revenue growth of +21.8%.