Optical Instruments & Lenses
Standard Industrial Classification: SIC 3827
Industry Insider Sentiment Analysis
The Optical Instruments & Lenses sector (SIC 3827) acts as a critical barometer for broader economic health. Our real-time monitoring reveals total transactions. Monitoring "cluster buying" is one of the most reliable leading indicators for future sector performance. By analyzing aggregate data across this specific Standard Industrial Classification, investors can filter out individual company volatility and identify high-conviction trends. When multiple directors and officers within the same industry move capital simultaneously, it often signals an upcoming sector-wide revaluation or a fundamental shift in supply chain dynamics that has yet to be recognized by the broader public market.
| Filing Date | Trade Date | Ticker | Company | Reporting Person | Relationship | Type | Price | Qty | Total, $ | Owned After |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-20 20:07 | 2026-08-18 | COHR | COHERENT CORP. | Luther Sherri R | Officer | SELL | $324.00 | 3,000 | $972,000 | 64,475 |
| 2026-08-18 11:39 | 2026-08-17 | CAMT | CAMTEK LTD | Geva-Dvash Orit | Officer | SELL | $175.00 | 508 | $88,900 | 5,205 |
| 2026-08-17 12:30 | 2026-08-13 | CAMT | CAMTEK LTD | Andorn Karni Yarl | Director | OPT+S | $167.79 | 5,532 | $928,200 | 1,343 |
| 2026-08-17 11:57 | 2026-08-13 | CAMT | CAMTEK LTD | AMIT RAFI | Officer | SELL | $170.52 | 6,250 | $1,065,750 | 55,350 |
| 2026-08-17 11:58 | 2026-08-13 | CAMT | CAMTEK LTD | Langer Ram | Officer | SELL | $172.32 | 6,387 | $1,100,622 | 17,532 |
| 2026-08-14 20:05 | 2026-08-13 | KLAC | KLA CORP | Lorig Brian | Officer | SELL | $208.13 | 59,586 | $12,401,634 | 77,681 |
| 2026-08-13 20:05 | 2026-08-12 | KLAC | KLA CORP | Higgins Bren D. | Officer | SELL | $209.87 | 31,500 | $6,610,905 | 307,815 |
| 2026-08-13 14:56 | 2026-08-12 | CAMT | CAMTEK LTD | Geva-Dvash Orit | Officer | SELL | $174.06 | 415 | $72,236 | 5,713 |
| 2026-08-13 14:41 | 2026-08-11 | CAMT | CAMTEK LTD | Eisenberg Moshe | Officer | SELL | $161.90 | 4,404 | $713,024 | 16,239 |
| 2026-08-13 14:41 | 2026-08-11 | CAMT | CAMTEK LTD | Aviram Lior | Director | SELL | $168.43 | 6,694 | $1,127,473 | 12,518 |
| 2026-08-12 20:05 | 2026-08-11 | KLAC | KLA CORP | WALLACE RICHARD P | Officer | SELL | $198.95 | 87,568 | $17,421,654 | 778,944 |
| 2026-08-12 20:05 | 2026-08-11 | KLAC | KLA CORP | Khan Ahmad A. | Officer | SELL | $198.95 | 33,180 | $6,601,161 | 238,045 |
| 2026-08-11 20:05 | 2026-08-10 | KLAC | KLA CORP | Wilkinson Mary Beth | Officer | SELL | $204.56 | 1,661 | $339,774 | 37,032 |
| 2026-08-11 20:05 | 2026-08-10 | KLAC | KLA CORP | Kirloskar Virendra A | Officer | SELL | $204.56 | 529 | $108,212 | 13,242 |
| 2026-08-10 20:05 | 2026-08-07 | KLAC | KLA CORP | Kirloskar Virendra A | Officer | SELL | $197.57 | 2,405 | $475,156 | 13,771 |
| 2026-08-10 20:05 | 2026-08-07 | KLAC | KLA CORP | Wilkinson Mary Beth | Officer | SELL | $197.57 | 21,831 | $4,313,151 | 38,693 |
| 2026-08-05 21:14 | 2026-08-05 | KLAC | KLA CORP | Kirloskar Virendra A | Officer | SELL | $195.50 | 4,504 | $880,532 | 7,972 |
| 2026-08-05 21:16 | 2026-08-05 | KLAC | KLA CORP | Wilkinson Mary Beth | Officer | SELL | $195.50 | 13,802 | $2,698,291 | 22,110 |
| 2026-08-04 21:26 | 2026-08-04 | KLAC | KLA CORP | Kirloskar Virendra A | Officer | SELL | $191.59 | 1,565 | $299,838 | 12,476 |
| 2026-08-04 21:27 | 2026-08-04 | KLAC | KLA CORP | Wilkinson Mary Beth | Officer | SELL | $191.59 | 4,295 | $822,879 | 35,912 |
| 2026-07-25 00:06 | 2026-07-22 | COHR | COHERENT CORP. | Luther Sherri R | Officer | SELL | $306.68 | 1,000 | $306,680 | 67,475 |
| 2026-07-06 20:05 | 2026-07-02 | KLAC | KLA CORP | Higgins Bren D. | Officer | SELL | $265.69 | 27,701 | $7,359,879 | 263,472 |
| 2026-07-06 20:05 | 2026-07-02 | KLAC | KLA CORP | Kirloskar Virendra A | Officer | SELL | $265.69 | 196 | $52,075 | 19,575 |
| 2026-07-06 10:03 | 2026-07-02 | NVMI | NOVA LTD. | Waisman Gabriel | Officer | SELL | $501.30 | 2,966 | $1,486,856 | 28,714 |
| 2026-07-02 20:05 | 2026-07-01 | KLAC | KLA CORP | Wilkinson Mary Beth | Officer | SELL | $285.30 | 14,392 | $4,106,038 | 53,367 |
| 2026-06-25 12:30 | 2026-06-22 | NVMI | NOVA LTD. | Garty Yaniv | Director | SELL | $581.20 | 366 | $212,719 | 2,006 |
| 2026-06-24 18:36 | 2026-06-22 | NVMI | NOVA LTD. | Simon Zehava | Director | SELL | $556.46 | 820 | $456,299 | 1,951 |
| 2026-06-24 18:32 | 2026-06-22 | NVMI | NOVA LTD. | Oppenhaim Eitan | Director | SELL | $581.20 | 1,290 | $749,748 | 6,421 |
| 2026-06-24 18:34 | 2026-06-22 | NVMI | NOVA LTD. | Sagiv Sarit | Director | SELL | $556.46 | 820 | $456,299 | 1,951 |
| 2026-06-11 22:08 | 2026-06-11 | KLAC | KLA CORP | WALLACE RICHARD P | Officer | SELL | $2,213.37 | 4,512 | $9,986,725 | 71,383 |
| 2026-05-27 14:10 | 2026-05-26 | NVMI | NOVA LTD. | Oppenhaim Eitan | Director | SELL | $519.48 | 1,504 | $781,298 | 6,668 |
| 2026-05-20 16:14 | 2026-05-18 | NVMI | NOVA LTD. | Garty Yaniv | Director | SELL | $514.49 | 426 | $219,173 | 2,038 |
| 2026-05-20 16:16 | 2026-05-18 | NVMI | NOVA LTD. | Simon Zehava | Director | SELL | $514.49 | 426 | $219,173 | 2,437 |
| 2026-05-20 16:18 | 2026-05-18 | NVMI | NOVA LTD. | Sagiv Sarit | Director | SELL | $514.49 | 426 | $219,173 | 2,437 |
| 2026-05-13 20:32 | 2026-05-12 | COHR | COHERENT CORP. | Luther Sherri R | Officer | SELL | $372.96 | 2,000 | $745,920 | 68,475 |
| 2026-05-13 20:33 | 2026-05-11 | COHR | COHERENT CORP. | Xia Howard H. | Director | OPT+S | $354.50 | 2,000 | $709,000 | 50,298 |
| 2026-05-12 20:05 | 2026-05-11 | KLAC | KLA CORP | Hanley Jeneanne Michelle | Director | SELL | $1,874.71 | 550 | $1,031,088 | 3,551 |
| 2026-05-12 20:05 | 2026-05-11 | KLAC | KLA CORP | Kirloskar Virendra A | Officer | SELL | $1,879.02 | 297 | $558,069 | 1,957 |
| 2026-05-12 21:25 | 2026-05-12 | KLAC | KLA CORP | WALLACE RICHARD P | Officer | SELL | $1,794.00 | 4,512 | $8,094,528 | 75,895 |
| 2026-04-24 21:10 | 2026-04-22 | COHR | COHERENT CORP. | Luther Sherri R | Officer | SELL | $351.00 | 2,000 | $702,000 | 70,475 |
| 2026-04-06 11:50 | 2026-04-02 | NVMI | NOVA LTD. | Garty Yaniv | Director | SELL | $425.00 | 55 | $23,375 | 2,464 |
| 2026-03-18 21:00 | 2026-03-16 | COHR | COHERENT CORP. | Xia Howard H. | Director | OPT+S | $245.51 | 4,240 | $1,040,943 | 50,298 |
| 2026-03-13 20:10 | 2026-03-11 | OPXS | Optex Systems Holdings Inc | George Chad Michael | Director, Officer | SELL | $13.62 | 7,035 | $95,817 | 0 |
| 2026-03-12 20:16 | 2026-03-10 | COHR | COHERENT CORP. | Eng Julie Sheridan | Officer | SELL | $258.18 | 1,454 | $375,394 | 49,436 |
| 2026-03-11 22:11 | 2026-03-09 | COHR | COHERENT CORP. | SKAGGS STEPHEN A | Director | SELL | $243.13 | 3,523 | $856,550 | 16,864 |
| 2026-03-10 00:17 | 2026-03-06 | COHR | COHERENT CORP. | Digirolomo Enrico | Director | OPT+S | $241.50 | 3,911 | $944,507 | 17,446 |
| 2026-03-05 00:32 | 2026-03-02 | COHR | COHERENT CORP. | Eng Julie Sheridan | Officer | SELL | $291.42 | 2,792 | $813,646 | 50,890 |
| 2026-02-18 00:57 | 2026-02-12 | COHR | COHERENT CORP. | Luther Sherri R | Officer | SELL | $217.74 | 4,000 | $870,954 | 72,475 |
| 2026-01-10 04:09 | 2026-01-07 | OPXS | Optex Systems Holdings Inc | SCHOENING DANNY ROBERT | Director, 10% owner | SELL | $13.75 | 56,870 | $782,133 | 796,730 |
| 2026-01-07 02:54 | 2026-01-02 | OPXS | Optex Systems Holdings Inc | SCHOENING DANNY ROBERT | Director, 10% owner | SELL | $13.57 | 53,708 | $728,726 | 853,600 |
Sector-Wide Insider Alpha
Analyzing insider movements across the Optical Instruments & Lenses sector provides a macro-view of executive conviction. When multiple leaders in different companies within the same SIC code (3827) simultaneously buy shares, it often indicates an industry-wide undervaluation or a positive shift in market cycles.
SEC Filings in Optical Instruments & Lenses
Every transaction in the Optical Instruments & Lenses industry is reported via Form 4 disclosures. By filtering these filings by industry, investors can detect institutional-scale sentiment shifts before they are reflected in broader market indices, following the capital flow of those with intimate industry knowledge.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.