| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
10% Owner
1 company
Valentin Gapontsev Trust I is 10% Owner at IPGP.
Our model assigns Valentin Gapontsev Trust I a middling insider score of 66/100, based on 47 past trades. Over a 12-month horizon, 75.7% of those trades were profitable, with an average 12-month return of +12.1%.
The IPGP filings lean toward selling, a net 1,079,113 shares.
Valentin Gapontsev Trust I has 64 Form 4 filings on record from February 2015 to September 2026, all as 10% Owner at IPG Photonics (IPGP), 2015–2026.
The 189 reported transactions were 189 open-market sales.
Counted by filing, the open-market trades come to no purchases and 64 sales worth about $114.5M.
The largest open-market sale was 43,000 shares of IPGP at an average $215.81 on December 17, 2020, about $9.3M.
28 of the 30 sales since April 2023 were made under a Rule 10b5-1 trading plan; the other 2 were not.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 2, 2026 | IPGP Ipg Photonics Corporation | 10% Owner | Sell10b5-1 | 27,397 | $75.42 | $2,066,185.64 | -0.4% | - | - | |
| Jul 21, 2026 | IPGP Ipg Photonics Corporation | 10% Owner | Sell10b5-1 | 56,316 | $102.31 | $5,761,474.88 | -0.8% | -29.5% | - | |
| Feb 17, 2026 | IPGP Ipg Photonics Corporation | 10% Owner | Sell10b5-1 | 66,500 | $130.84 | $8,700,865.27 | -1.0% | -21.1% | - | |
| Jan 15, 2026 | IPGP Ipg Photonics Corp | 10% Owner | Sell10b5-1 | 7,952 | $80.10 | $636,986.94 | -0.1% | +51.6% | - | |
| Jan 14, 2026 | IPGP Ipg Photonics Corp | 10% Owner | Sell10b5-1 | 58,548 | $76.93 | $4,504,354.04 | -0.9% | +60.8% | - | |
| Dec 16, 2025 | IPGP Ipg Photonics Corp | 10% Owner | Sell10b5-1 | 66,500 | $77.40 | $5,146,831.92 | -1.0% | +48.9% | - | |
| Nov 18, 2025 | IPGP Ipg Photonics Corp | 10% Owner | Sell10b5-1 | 66,500 | $76.56 | $5,091,184.74 | -1.0% | +77.9% | - | |
| Oct 15, 2025 | IPGP Ipg Photonics Corp | 10% Owner | Sell10b5-1 | 64,725 | $83.55 | $5,407,991.94 | -0.9% | -11.0% | -14.5% | |
| Sep 16, 2025 | IPGP Ipg Photonics Corp | 10% Owner | Sell | 66,500 | $80.70 | $5,366,553.26 | -0.9% | -4.8% | -5.8% | |
| Mar 6, 2025 | IPGP Ipg Photonics Corp | 10% Owner | Sell | 75,000 | $62.62 | $4,696,309.69 | -1.0% | +9.0% | +92.9% |