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EdgarHawk

Gilliam Joseph E

PRESIDENT & COO

Officer

Latest: PRESIDENT & COO selling · May 2026

5 filings analyzed · 1 company · Latest 2026-05-04

Companies

Company Buys Sells Direction
GLAUKOS Corp GKOS 0 13 Net selling

Activity

May 2026
2026-05-04 GLAUKOS Corp GKOS
medium
Sell
19,573 shares
$2,809,508
Significance 5/10

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.

January 2026
2026-01-26 GLAUKOS Corp GKOS
medium
Sell
10,498 shares
$1,340,380
Significance 5/10

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.

2026-01-23 GLAUKOS Corp GKOS
low
Sell
4,502 shares
$561,174
Significance 4/10

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.

November 2025
2025-11-20 GLAUKOS Corp GKOS
medium
Sell
19,340 shares
$1,740,600
Significance 5/10

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%.

August 2024
2024-08-23 GLAUKOS Corp GKOS
medium
Sell
5,000 shares
$646,791
Significance 4/10

President & COO Gilliam sold 5,000 shares (4.7% of holdings) for $646,790.80 as GKOS near 52-week highs.

Joseph E. Gilliam, President & COO of Glaukos Corp, executed 2 separate sales totaling 5,000 shares for $646,790.80 on 2024-08-21 at prices between $129.27 and $130.03, reducing his holdings from 107.2K to 102.2K shares. The sales occurred when the stock was trading near its 52-week high of $132.89, having appreciated 8.4% over the prior 30 days and 22.0% over 90 days. Notably, his 5 prior sales at GKOS all generated positive 90-day returns (ranging from +18.1% to +22.2%), meaning the stock rose after each sale—a 0% well-timed rate on this ticker. Gilliam's cross-ticker track record shows 14 prior sells with only a 7.14% well-timed rate, and this filing continues that pattern of selling into strength without a demonstrated history of timing peaks at this company.

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