IPGP IPG PHOTONICS CORP Insider Trading

10% owner IP Fibre Devices sells 65,700 shares for $6.8M; scheduled 10b5-1 plan, -1.0% of holdings

IP Fibre Devices Ltd, a 10% holder of IPG PHOTONICS CORP, executed 7 separate sales totaling 65,700 shares for $6,809,233.37 on 2026-06-29 at prices ranging from $100.19 to $106.40, representing a blended average price of $103.64. This sale reduced holdings from 6,529,002 to 6,463,302 shares, a -1.0% net reduction. The transaction was part of a pre-arranged 10b5-1 trading plan adopted on 2026-03-17, meaning it was scheduled, not discretionary. The current stock price is $114.41, and at IPG PHOTONICS specifically, the insider's 5 prior sales over February 2026 each showed negative 30-day and 90-day returns (ranging from -3.4% to -13.4%), indicating this insider has faced headwinds on timing when selling at this ticker. With the company trading at a P/E of 168.25 on modest net income of $1.6M against $265.5M revenue and a market cap of $4.9B, the valuation metrics merit investor attention, but the scheduled nature of this sale limits what can be inferred about conviction from the transaction itself.

IPGP CFO Timothy Mammen sells 9,975 shares across 2 transactions for $1,195,098.24

Timothy Pv Mammen, SVP and CFO of IPG Photonics, sold 9,975 shares across two separate sales on 2026-05-22, receiving $1,195,098.24 at a blended average price of $119.81. His post-transaction holdings of 76,438 shares represent an 11.5% reduction from the 86,413 shares held prior to the sale. The timing merits attention: the stock has declined 23.1% from its 52-week high of $155.82 and is down 13.7% over the past 90 days, yet the CFO chose to reduce his position at the current level of $119.82. The company's fundamentals show slowing growth (2.7% annual revenue growth) and an elevated P/E ratio of 176.21 despite net income of only $1.6M on $265.5M in quarterly revenue, suggesting a profile where valuation expectations are stretched relative to profitability.

IP FIBRE DEVICES (10% owner) sold 64,167 shares for $8,526,978.03 across 12 transactions, Feb 20–24; scheduled 10b5-1 plan.

IP FIBRE DEVICES LTD executed 12 separate sales totaling 64,167 shares for $8,526,978.03 between February 20 and February 24, 2026, reducing holdings from 6,593,169 shares to 6,529,002 shares (a net change of -1.0% vs pre-transaction holdings). The sales occurred at prices ranging from $128.79 to $137.00, with a blended average price of $132.89. This transaction was executed under a pre-arranged 10b5-1 trading plan adopted on 2025-06-13, meaning the sales were scheduled and non-discretionary. As a 10% owner, the filing is subject to regulatory disclosure but the scheduled nature of the plan removes any inference about insider conviction or timing-based signal regarding the stock's valuation.

Valentin Gapontsev Trust I sold 66,500 shares for $8,700,865.27 via scheduled 10b5-1 plan

Valentin Gapontsev Trust I, a 10% owner, executed 21 separate sales on 2026-02-17 totaling 66,500 shares for $8,700,865.27 at prices ranging from $125.40 to $149.88, with a blended average price of $130.84. The transaction is part of a pre-arranged 10b5-1 trading plan adopted on 2025-06-13, meaning the sale was scheduled and not discretionary. Following the sale, the trust retained 6,726,599 shares (6.73M shares), representing a net reduction of 1.0% of its pre-transaction holdings. The multiple-tranche execution across a range of prices within a single trading day suggests systematic liquidation within predetermined plan parameters rather than a response to current market conditions.

10% owner IP FIBRE DEVICES sold 64,167 shares at $79.54–$81.65 for $5.1M in 6 transactions over 3 days

IP FIBRE DEVICES LTD, holding 6,593,169 shares post-transaction, executed six separate sales totaling 64,167 shares (64.2K shares) for $5,147,715.01 ($5.1M) at a blended average price of $80.22 between January 16–21, 2026. The position represents a -1.0% reduction from pre-transaction holdings of 6,657,336 shares (6.66M shares). The company's underlying fundamentals show deterioration: annual revenue growth is -24.1%, full-year net income was negative (company unprofitable), and the P/E is elevated at 140.08 despite the latest quarterly net income of $7,463,000.00 ($7.5M) and revenue of $250,792,000.00 ($250.8M). At the current price of $85.45, the stock is -4.8% from its 52-week high of $89.75 yet +13.6% over the past 30 days; the insider sold at prices ($79.54–$81.65) notably below the current market level, indicating the sales occurred in the midst of an upward move rather than ahead of weakness.

Valentin Gapontsev Trust I sold 58,548 shares for $4,504,354.04 across 7 transactions via 10b5-1 plan

Valentin Gapontsev Trust I, a 10% owner of IPG PHOTONICS CORP, executed 7 separate sales totaling 58,548 shares for $4,504,354.04 between January 12–14, 2026, at prices ranging from $76.20 to $78.55 per share. This transaction is part of a pre-arranged 10b5-1 trading plan adopted on 2025-06-13, meaning the sales were scheduled in advance and not discretionary. The filer retains 6,801,051 shares post-transaction, representing a net reduction of only 0.9% of pre-transaction holdings. Because this is a 10b5-1 scheduled sale, timing considerations are not applicable to the trade execution itself.

IP FIBRE DEVICES LTD sold 64,167 shares of IPGP for $4.8M across 7 transactions Dec 22-24, per 10b5-1 plan

IP FIBRE DEVICES LTD, a 10% owner, executed 7 separate sales totaling 64,167 shares for $4,808,589.98 across three trading days (Dec 22-24, 2025) at prices ranging from $74.62 to $76.69 with a blended average of $74.94. This activity was part of a pre-arranged 10b5-1 trading plan adopted on 2025-06-13, meaning the transactions were scheduled rather than discretionary. The sales reduced holdings by 1.0% from 6,721,503 shares to 6,657,336 shares, representing a modest portfolio adjustment by a significant shareholder. As a 10% owner executing a pre-planned divestment schedule, the filing warrants monitoring to confirm whether subsequent sales remain consistent with the adopted plan parameters.

10% owner Valentin Gapontsev Trust I sold 66,500 shares for $5,146,831.92 in 4 transactions via pre-arranged 10b5-1 plan

Valentin Gapontsev Trust I, a 10% shareholder of IPG PHOTONICS CORP, executed 4 separate sales totaling 66,500 shares for $5,146,831.92 between December 15-16, 2025, reducing holdings from 6,926,099 shares to 6,859,599 shares (a 1.0% reduction). This transaction is part of a pre-arranged 10b5-1 trading plan adopted on 2025-06-13, meaning it was scheduled and not a discretionary decision by the insider. The blended average price across the four sales was $77.40. Because this activity is governed by a pre-arranged trading schedule, it represents automatic execution rather than a current assessment of value.

IP FIBRE DEVICES LTD (10% owner) sells 64,167 shares for $4,838,547.90 via scheduled 10b5-1 plan adopted 2025-06-13

IP FIBRE DEVICES LTD, a 10% owner of IPGP, executed 6 separate sales totaling 64,167 shares for $4,838,547.90 across two trading days (2025-11-21 and 2025-11-24) at prices ranging from $73.16 to $76.98 per share. The transaction is part of a pre-arranged 10b5-1 trading plan adopted on 2025-06-13, meaning the sales were scheduled and not discretionary in timing or execution. Post-transaction holdings of 6,721,503 shares represent a 0.9% reduction from pre-transaction holdings of 6,785,670 shares, indicating a minor portfolio adjustment by the 10% stakeholder. As a scheduled transaction under a pre-arranged plan, this sale reflects formalized capital management rather than a discretionary market response.

Valentin Gapontsev Trust I (10% owner) sold 66,500 shares for $5,091,184.74 via scheduled 10b5-1 plan

Valentin Gapontsev Trust I executed 5 separate sales totaling 66,500 shares for $5,091,184.74 at a blended average price of $76.56 on November 17-18, 2025. This transaction reduces the trust's holdings from 6,992,599 shares to 6,926,099 shares, a net reduction of 1.0% of pre-transaction holdings. Importantly, this activity is governed by a pre-arranged 10b5-1 trading plan adopted on 2025-06-13, indicating these sales were scheduled and non-discretionary rather than reflecting a contemporaneous business judgment about valuation or company prospects. As a 10% beneficial owner, the filing is material from a disclosure perspective, but the predetermined nature of the trading plan limits inference about insider conviction or concern.