What the executives and directors of Coherent Corp. actually did with their own shares, decoded from three years of SEC Form 4 filings.
The tape: three years of insider trades
Every marker sits at the exact price reported on the Form 4. The line is the monthly median of all prices insiders reported, so the chart needs no market feed; the gray strip is routine flow (vestings, tax withholding, gifts) that headlines love to miscount as selling.
Where the shares went, last 12 months
Every Form 4 movement decomposed: what flowed in (grants, vested equity, purchases) and what flowed out (tax withholding, plan sales, discretionary sales, gifts). Counted in shares, because grants carry no price.
Skin in the game
Directly held shares as reported after each trade, indexed to 100 five years back. Direct holdings only: trust and family-entity positions are per-entity in the filings and do not sum honestly, so this chart refuses to guess. The steps are the trades.
Who holds what
| Insider | Role | Shares held | Buys 12 m | Sales 12 m |
|---|---|---|---|---|
| MATTERA VINCENT D JR Chief Executive Officer | CEO | 665.2K | — | — |
| ANDERSON JAMES ROBERT CEO | CEO | 166.4K | — | — |
| RAYMOND MARY JANE Chief Financial Officer | CFO | 165.4K | — | — |
| BARBAROSSA GIOVANNI EVP, General Management | Officer | 163.2K | — | $18.1M |
| BASHAW WALTER ROBERT II President | Officer | 80.7K | — | — |
| CORASANTI JOSEPH J | Director | 80.2K | — | $4.4M |
| Luther Sherri R Chief Financial Officer | CFO | 67.5K | — | $2.6M |
| Xia Howard H. | Director | 56.3K | — | $2.2M |
| Eng Julie Sheridan Chief Technology Officer | Officer | 49.4K | — | $1.8M |
| Beard Robert P EVP, Legal | Officer | 48.2K | — | — |
| Koeppen Christopher EVP of Aerospace & Defense | Officer | 42K | — | — |
| SADASIVAM SHAKER | Director | 41.2K | — | — |
| Martucci Richard J. Interim CFO & Treasurer | CFO | 40.1K | — | — |
| Basso Ronald Chief Legal & Compliance Off. | Officer | 39.4K | — | — |
Open-market trade log
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| 2026-07-22 | Luther Sherri R (CFO) | Planned sale (10b5-1) | 1,000 | $306.68 | $307K |
| 2026-05-12 | Luther Sherri R (CFO) | Planned sale (10b5-1) | 2,000 | $372.96 | $746K |
| 2026-05-11 | Xia Howard H. (Director) | Discretionary sale | 500 | $344.00 | $172K |
| 2026-05-11 | Xia Howard H. (Director) | Discretionary sale | 500 | $348.00 | $174K |
| 2026-05-11 | Xia Howard H. (Director) | Discretionary sale | 500 | $358.00 | $179K |
| 2026-05-11 | Xia Howard H. (Director) | Discretionary sale | 500 | $368.00 | $184K |
| 2026-04-22 | Luther Sherri R (CFO) | Planned sale (10b5-1) | 2,000 | $351.00 | $702K |
| 2026-03-17 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $244.46 | $244K |
| 2026-03-17 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $245.57 | $246K |
| 2026-03-17 | Xia Howard H. (Director) | Discretionary sale | 1,240 | $236.22 | $293K |
| 2026-03-16 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $258.00 | $258K |
| 2026-03-10 | Eng Julie Sheridan (Officer) | Planned sale (10b5-1) | 1,454 | $258.18 | $375K |
| 2026-03-09 | SKAGGS STEPHEN A (Director) | Planned sale (10b5-1) | 3,523 | $243.13 | $857K |
| 2026-03-06 | Digirolomo Enrico (Director) | Discretionary sale | 3,911 | $241.50 | $945K |
| 2026-03-02 | Eng Julie Sheridan (Officer) | Planned sale (10b5-1) | 2,792 | $291.42 | $814K |
| 2026-02-12 | Luther Sherri R (CFO) | Planned sale (10b5-1) | 4,000 | $217.74 | $871K |
| 2025-12-10 | CORASANTI JOSEPH J (Director) | Discretionary sale | 15K | $196.74 | $3M |
| 2025-12-03 | STERLING MICHELLE M (Director) | Discretionary sale | 2,000 | $164.51 | $329K |
| 2025-12-02 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $168.00 | $168K |
| 2025-12-02 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $172.00 | $172K |
| 2025-12-01 | Mocciaro Ilaria (Officer) | Discretionary sale | 1,377 | $162.71 | $224K |
| 2025-11-28 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $158.36 | $158K |
| 2025-11-21 | Digirolomo Enrico (Director) | Discretionary sale | 2,831 | $134.85 | $382K |
| 2025-11-20 | SKAGGS STEPHEN A (Director) | Planned sale (10b5-1) | 2,000 | $150.00 | $300K |
| 2025-11-14 | Dreyer Michael L (Director) | Discretionary sale | 11.6K | $144.88 | $1.7M |
| 2025-11-07 | BAIN CAPITAL INVESTORS LLC (10% owner) | Discretionary sale | 7.5M | $143.37 | $1.1B |
| 2025-11-07 | CORASANTI JOSEPH J (Director) | Discretionary sale | 9,720 | $151.25 | $1.5M |
| 2025-11-06 | BARBAROSSA GIOVANNI (Officer) | Planned sale (10b5-1) | 60.7K | $160.00 | $9.7M |
| 2025-10-29 | SKAGGS STEPHEN A (Director) | Planned sale (10b5-1) | 2,000 | $140.00 | $280K |
| 2025-10-29 | BARBAROSSA GIOVANNI (Officer) | Planned sale (10b5-1) | 11.7K | $141.10 | $1.7M |
| 2025-10-29 | BARBAROSSA GIOVANNI (Officer) | Planned sale (10b5-1) | 47.8K | $140.46 | $6.7M |
| 2025-10-24 | SKAGGS STEPHEN A (Director) | Planned sale (10b5-1) | 2,000 | $130.00 | $260K |
| 2025-08-29 | Eng Julie Sheridan (Officer) | Discretionary sale | 200 | $93.54 | $19K |
| 2025-08-29 | Eng Julie Sheridan (Officer) | Discretionary sale | 300 | $92.66 | $28K |
| 2025-08-29 | Eng Julie Sheridan (Officer) | Discretionary sale | 1,308 | $91.06 | $119K |
| 2025-08-29 | Eng Julie Sheridan (Officer) | Discretionary sale | 5,328 | $90.36 | $481K |
| 2025-08-13 | SKAGGS STEPHEN A (Director) | Planned sale (10b5-1) | 2,000 | $122.23 | $244K |
| 2025-07-17 | Koeppen Christopher (Officer) | Planned sale (10b5-1) | 3,100 | $100.00 | $310K |
| 2025-07-16 | Koeppen Christopher (Officer) | Planned sale (10b5-1) | 500 | $94.59 | $47K |
| 2025-07-16 | Koeppen Christopher (Officer) | Planned sale (10b5-1) | 1,162 | $96.91 | $113K |
| 2025-07-16 | Koeppen Christopher (Officer) | Planned sale (10b5-1) | 1,196 | $97.80 | $117K |
| 2025-07-16 | Koeppen Christopher (Officer) | Planned sale (10b5-1) | 2,600 | $95.99 | $250K |
| 2025-06-16 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $80.88 | $81K |
| 2025-06-11 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $83.00 | $83K |
| 2025-06-03 | SADASIVAM SHAKER (Director) | Discretionary sale | 29.3K | $80.00 | $2.3M |
| 2025-05-28 | Neal-Graves Lisa (Director) | Discretionary sale | 1,200 | $79.65 | $96K |
| 2025-05-21 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $81.00 | $81K |
| 2025-05-13 | Koeppen Christopher (Officer) | Planned sale (10b5-1) | 2,545 | $80.00 | $204K |
| 2025-05-13 | Koeppen Christopher (Officer) | Planned sale (10b5-1) | 2,581 | $80.00 | $206K |
| 2025-05-13 | Koeppen Christopher (Officer) | Planned sale (10b5-1) | 6,154 | $80.00 | $492K |
| 2025-05-12 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $76.84 | $77K |
| 2025-05-12 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $78.00 | $78K |
| 2025-05-09 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $72.69 | $73K |
| 2024-12-16 | Koeppen Christopher (Officer) | Planned sale (10b5-1) | 2,916 | $108.84 | $317K |
| 2024-12-04 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $109.45 | $109K |
| 2024-12-04 | Xia Howard H. (Director) | Discretionary sale | 1,000 | $112.00 | $112K |
| 2024-12-03 | Xia Howard H. (Director) | Discretionary sale | 970 | $106.00 | $103K |
| 2024-12-03 | Koeppen Christopher (Officer) | Planned sale (10b5-1) | 2,590 | $107.00 | $277K |
| 2024-12-02 | ANDERSON JAMES ROBERT (CEO) | Open-market buy | 500 | $102.72 | $51K |
| 2024-11-26 | CORASANTI JOSEPH J (Director) | Discretionary sale | 9,240 | $101.29 | $936K |
“Since trade” compares with the latest insider-implied price, not a market quote; this site carries no market data by design.
Filing hygiene
How to read this
A Form 4 transaction code decides everything. P is an open-market purchase and S an open-market sale; those two are the only codes where an insider chose to trade. A is a grant, M an option exercise or vesting, F shares withheld to cover tax, G a gift. Most “insiders dumped billions” headlines are code F and M mechanics.
Sales flagged 10b5-1 run on a plan the insider adopted in advance; since 2023 every Form 4 carries that flag. Buys have historically predicted returns, sales mostly have not, and this page states filings, not advice.