About this page
Insider trades reported on SEC Form 4: when the people who run a company buy or sell its shares with their own money.
How to read it
- Form 4
- The form a company insider (officer, director or owner of more than 10%) must file with the SEC within two business days of buying or selling the company's shares.
- Buy (P) and Sell (S)
- Open-market purchases and sales. Gifts, option exercises and automatic tax withholding are left out because they say little about what the insider thinks.
- Value
- Shares times price, as reported on the filing.
- 10b5-1
- A trade made under a plan set up in advance. Planned sales are common and usually say less than an unplanned purchase.
- Late filing
- A Form 4 filed more than two business days after the trade.
- Vs. S&P 500
- How the stock did after the trade minus how the overall market did in the same weeks.
A real example
In January 2016, when bank stocks were falling, JPMorgan Chase CEO Jamie Dimon bought 500,000 JPMorgan shares with his own money, worth about $26 million. His Form 4 made the purchase public within days, and investors read it as a strong sign of confidence.
Explain it like I'm 13
If the coach of a team bets his own allowance that his team will win, that tells you something. A Form 4 is the note a company boss must hand in whenever he buys or sells his own company's shares, so everyone can see it.
Data from public SEC filings and congressional reports. Information, not investment advice. Check every number against the filing linked on the page.
COHERENT CORP. (COHR): Insider Trades and Fund Holdings
In the past 12 months, COHERENT CORP. insiders reported no open-market purchases and 10 sales worth $9.44M; 6 of the sales were reported as made under a 10b5-1 trading plan.
Timeline: news and trades
Company filings (8-K), insider trades, notices of planned sales (Form 144), Congress trades and fund moves in the past year, newest first.
- Sep 11, 2026Insider saleDirector Enrico Digirolomo sold $1.6 million
- Sep 11, 2026Planned saleENRICO DIGIROLAMO (director) filed notice to sell about $1.6 million around Sep 11, 2026
- Sep 9, 2026Insider saleChief Strategy & Legal Officer Robert P. Beard sold $154,660 (9 days after: executive or director change)
- Sep 9, 2026Planned saleROBERT P BEARD (officer) filed notice to sell about $154,660 around Sep 9, 2026
- Sep 2, 2026Insider saleDirector Lisa Neal-Graves sold $590,524 (2 days after: executive or director change)
- Sep 2, 2026Planned saleLISA NEAL-GRAVES (director) filed notice to sell about $590,524 around Sep 2, 2026
- Sep 1, 2026Insider saleCTO Julie Sheridan Eng sold $1.6 million under a 10b5-1 plan (1 days after: executive or director change)
- Sep 1, 2026Planned saleJULIE S ENG (officer) filed notice to sell about $1.7 million around Sep 1, 2026
- Aug 31, 2026NewsCompany reported: Executive or director change
- Aug 31, 2026Insider saleDirector Stephen A. Skaggs sold $629,062 under a 10b5-1 plan (0 days after: executive or director change)
- Aug 31, 2026Insider saleDirector Enrico Digirolomo sold $628,998 under a 10b5-1 plan (0 days after: executive or director change)
- Aug 31, 2026Insider saleCTO Julie Sheridan Eng sold $2 million under a 10b5-1 plan (0 days after: executive or director change)
- Aug 31, 2026Planned saleJULIE S ENG (officer) filed notice to sell about $2 million around Aug 31, 2026
- Aug 31, 2026Planned saleENRICO DIGIROLAMO (director) filed notice to sell about $634,342 around Aug 31, 2026
- Aug 31, 2026Planned saleSTEPHEN SKAGGS (director) filed notice to sell about $634,342 around Aug 31, 2026
- Aug 18, 2026Insider saleCFO Sherri R. Luther sold $972,000 under a 10b5-1 plan
- Aug 18, 2026Planned saleSherri Luther (officer) filed notice to sell about $1.1 million around Aug 18, 2026
- Aug 18, 2026CongressRep. Gilbert Ray Cisneros, Jr. sell $1K–$15K
- Jul 22, 2026Insider saleCFO Sherri R. Luther sold $306,680 under a 10b5-1 plan
- Jun 30, 2026FundBridgewater Associates cut 91% in Q2 2026 (13F filed Aug 14, 2026)
- Jun 30, 2026FundDuquesne Family Office sold out in Q2 2026 (13F filed Aug 14, 2026)
- Mar 25, 2026CongressRep. Gilbert Ray Cisneros, Jr. buy $1K–$15K
- Mar 6, 2026Insider saleDirector Enrico Digirolomo sold $944,507
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Sep 15, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Sep 15 | Enrico DigirolomoDirector | ▼ SELL | $1.63M |
| Sep 11 | Robert P. BeardChief Strategy & Legal Officer | ▼ SELL | $155K |
| Sep 4 | Lisa Neal-GravesDirector | ▼ SELL | $591K |
| Sep 2 | Enrico DigirolomoDirector | ▼ SELL | $945K |
| Sep 2 | Stephen A. SkaggsDirector | ▼ SELL10b5-1 | $629K |
| Sep 2 | Enrico DigirolomoDirector | ▼ SELL10b5-1 | $629K |
| Sep 1 | Julie Sheridan EngCTO | ▼ SELL10b5-1 | $1.95M |
| Sep 1 | Julie Sheridan EngCTO | ▼ SELL10b5-1 | $1.63M |
| Aug 20 | Sherri R. LutherCFO | ▼ SELL10b5-1 | $972K |
| Jul 24 | Sherri R. LutherCFO | ▼ SELL10b5-1 | $307K |
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Enrico Digirolomo | Director | 0 | $0 | 3 | $3.20M |
| Robert P. Beard | Chief Strategy & Legal Officer | 0 | $0 | 1 | $155K |
| Lisa Neal-Graves | Director | 0 | $0 | 1 | $591K |
| Stephen A. Skaggs | Director | 0 | $0 | 1 | $629K |
| Julie Sheridan Eng | CTO | 0 | $0 | 2 | $3.58M |
| Sherri R. Luther | CFO | 0 | $0 | 2 | $1.28M |
Trades by members of Congress
Reported under the STOCK Act. Amounts are ranges from the form. All Congress trades →
| Filed | Member | Type | Amount |
|---|---|---|---|
| Sep 10 | ▼ SELL | $1K–$15K | |
| Apr 7 | ▲ BUY | $1K–$15K |
Buybacks and executive pay
| Year | CEO pay reported | CEO pay "actually paid" | Value of $100 invested |
|---|---|---|---|
| 2025 | $3.72M | $34.5M | n/a |
| 2024 | $101.5M | $108.4M | n/a |
From the company's XBRL data filed with the SEC. "Actually paid" is the SEC's pay-versus-performance measure, which counts changes in the value of stock awards. "Value of $100 invested" is the company's cumulative shareholder return as reported, usually measured from five years earlier. See all buybacks and CEO pay across companies.
A 1 of 10 insider trades reported after the deadline. How it is graded
Tracked funds that report COHR
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Bridgewater Associates | 15,206 | $6.00M | ▼ −90.7% |
| Duquesne Family Office | 0 | $0 | ▼ Sold out |
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →