COHERENT CORP. (COHR)
Every FINRA and SEC series the site collects for COHERENT CORP.: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on NYSE, classified by the SEC as optical instruments & lenses.
10.8M
Short interest
settlement 2026-08-31
1.7
Days to cover
+7.3% vs prior
46.9%
Short share of volume
2026-09-11
11,786
Fails to deliver
settlement 2026-08-14
-$6.9M
Insider flow, 90 days
0 buys, 8 sells
As of 2026-09-11.
Short interest
FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSONAs of 31 August 2026, short interest in COHR is 10,764,076 shares, up 1,717,055 shares over the last month. Over the last 48 readings it ranged from 5,165,412 shares (28 February 2025) to 10,920,038 shares (31 March 2026). The latest reading sits at the top of that range. At the reported average volume of 6.3M shares a day that is 1.7 days to cover.
Embed this chartkeeps the attribution line it carries
<iframe src="https://xoomar.com/embed/stocks/cohr" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-08-31 | 10,764,076 | +7.3% | 6,272,083 | 1.72 |
| 2026-08-14 | 10,032,446 | +10.9% | 8,821,687 | 1.14 |
| 2026-07-31 | 9,047,021 | +4.1% | 5,016,635 | 1.80 |
| 2026-07-15 | 8,693,657 | +1.2% | 4,358,853 | 1.99 |
| 2026-06-30 | 8,587,090 | -4.0% | 6,253,335 | 1.37 |
| 2026-06-15 | 8,944,682 | +14.1% | 6,315,936 | 1.42 |
| 2026-05-29 | 7,842,738 | -9.6% | 5,379,397 | 1.46 |
| 2026-05-15 | 8,674,309 | +13.2% | 7,370,856 | 1.18 |
| 2026-04-30 | 7,665,383 | -20.7% | 5,785,869 | 1.32 |
| 2026-04-15 | 9,670,377 | -11.4% | 5,545,954 | 1.74 |
| 2026-03-31 | 10,920,038 | +33.8% | 11,221,264 | 1.00 |
| 2026-03-13 | 8,160,225 | +40.9% | 8,064,519 | 1.01 |
| 2026-02-27 | 5,793,459 | +11.9% | 6,418,099 | 1.00 |
| 2026-02-13 | 5,177,651 | -13.3% | 7,482,001 | 1.00 |
| 2026-01-30 | 5,970,631 | -1.9% | 4,370,244 | 1.37 |
| 2026-01-15 | 6,086,342 | +1.9% | 4,834,122 | 1.26 |
| 2025-12-31 | 5,975,983 | +12.9% | 2,928,278 | 2.04 |
| 2025-12-15 | 5,294,727 | -11.6% | 5,083,722 | 1.04 |
| 2025-11-28 | 5,986,029 | -2.7% | 4,606,609 | 1.30 |
| 2025-11-14 | 6,153,370 | -9.9% | 6,198,220 | 1.00 |
| 2025-10-31 | 6,833,334 | -8.3% | 3,531,255 | 1.94 |
| 2025-10-15 | 7,448,084 | -5.3% | 3,214,161 | 2.32 |
| 2025-09-30 | 7,867,468 | -11.7% | 3,306,771 | 2.38 |
| 2025-09-15 | 8,914,051 | +9.9% | 4,310,470 | 2.07 |
Daily short volume
FINRA Reg SHO, last 60 sessions. JSONAs of 11 September 2026, the short share of COHR volume is 46.9%, down 2.7 points over the last five sessions. Over the last 52 readings it ranged from 30.3% (24 August 2026) to 62.6% (3 August 2026). The latest reading is 3.3 points below the 30-session average of 50.2%, on 3.1M shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-09-11 | 1.5M | 3.1M | 46.9% | 1,232 |
| 2026-09-10 | 1.5M | 2.8M | 54.4% | 4,775 |
| 2026-09-09 | 1.3M | 2.6M | 47.6% | 5,442 |
| 2026-09-08 | 2.1M | 4.1M | 52.6% | 6,899 |
| 2026-09-04 | 1.2M | 2.4M | 50.1% | 4,518 |
| 2026-09-03 | 1.0M | 2.1M | 49.5% | 3,510 |
| 2026-09-02 | 952K | 2.3M | 41.8% | 1,351 |
| 2026-09-01 | 1.1M | 2.8M | 38.9% | 3,834 |
| 2026-08-31 | 751K | 2.0M | 37.2% | 1,815 |
| 2026-08-28 | 1.3M | 2.7M | 50.5% | 3,426 |
| 2026-08-27 | 1.3M | 2.4M | 52.5% | 3,468 |
| 2026-08-26 | 1.1M | 2.4M | 47.9% | 1,427 |
| 2026-08-25 | 1.2M | 2.6M | 47.9% | 5,788 |
| 2026-08-24 | 963K | 3.2M | 30.3% | 4,750 |
| 2026-08-21 | 1.2M | 2.7M | 44.2% | 4,430 |
| 2026-08-20 | 1.0M | 2.3M | 45.2% | 2,156 |
| 2026-08-19 | 1.3M | 3.2M | 42.1% | 127,664 |
| 2026-08-18 | 1.7M | 4.0M | 42.5% | 157,683 |
| 2026-08-17 | 2.0M | 4.4M | 46.4% | 9,677 |
| 2026-08-14 | 2.2M | 4.2M | 53.0% | 5,315 |
| 2026-08-13 | 3.5M | 6.0M | 58.6% | 9,328 |
| 2026-08-12 | 2.0M | 3.7M | 54.3% | 296 |
| 2026-08-11 | 1.3M | 2.3M | 58.2% | 114,304 |
| 2026-08-10 | 2.6M | 4.3M | 59.7% | 160,146 |
| 2026-08-07 | 2.8M | 4.5M | 61.2% | 2,524 |
| 2026-08-06 | 1.5M | 2.5M | 60.7% | 1,714 |
| 2026-08-05 | 1.3M | 2.3M | 55.5% | 3,907 |
| 2026-08-04 | 1.9M | 3.1M | 59.8% | 2,104 |
| 2026-08-03 | 1.4M | 2.3M | 62.6% | 1,551 |
| 2026-07-31 | 1.2M | 2.2M | 54.0% | 363 |
Fails to deliver
SEC, by settlement date. JSONAs of 14 August 2026, the fails-to-deliver balance in COHR is 11,786 shares, down 119,964 shares over the last settlement date. Over the last 52 readings it ranged from 40 shares (22 July 2026) to 131,750 shares (11 August 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-08-14 | 11,786 | $327.23 | $3.9M |
| 2026-08-11 | 131,750 | $325.15 | $42.8M |
| 2026-08-10 | 1,165 | $379.13 | $442K |
| 2026-08-03 | 471 | $262.89 | $124K |
| 2026-07-27 | 13,474 | $282.39 | $3.8M |
| 2026-07-22 | 40 | $317.22 | $13K |
| 2026-07-17 | 9,699 | $276.96 | $2.7M |
| 2026-07-13 | 120 | $324.50 | $39K |
| 2026-07-08 | 58 | $314.13 | $18K |
| 2026-07-02 | 6,368 | $368.65 | $2.3M |
| 2026-07-01 | 23,879 | $394.47 | $9.4M |
| 2026-06-30 | 24,771 | $391.22 | $9.7M |
| 2026-06-25 | 1,293 | $392.50 | $508K |
| 2026-06-22 | 3,910 | $389.57 | $1.5M |
| 2026-06-15 | 1,307 | $385.03 | $503K |
| 2026-06-12 | 38,267 | $363.58 | $13.9M |
| 2026-06-09 | 19,332 | $401.93 | $7.8M |
| 2026-05-28 | 7,525 | $380.18 | $2.9M |
| 2026-05-22 | 13,859 | $378.00 | $5.2M |
| 2026-05-20 | 546 | $353.63 | $193K |
| 2026-05-18 | 6,311 | $382.45 | $2.4M |
| 2026-05-15 | 345 | $404.94 | $140K |
| 2026-05-14 | 133 | $403.71 | $54K |
| 2026-05-11 | 210 | $335.26 | $70K |
| 2026-05-08 | 95 | $319.19 | $30K |
| 2026-05-05 | 18,131 | $329.89 | $6.0M |
| 2026-05-04 | 2,205 | $329.50 | $727K |
| 2026-04-30 | 16,024 | $304.93 | $4.9M |
| 2026-04-21 | 512 | $347.51 | $178K |
| 2026-04-20 | 8,900 | $345.02 | $3.1M |
Insider trades
SEC Form 4, newest first, 50 of 100 shown. JSONInsiders at COHR reported 8 open-market sells worth $6.9M in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: Beard Robert P (Chief Strategy & Legal Officer) on 2026-09-09.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-09 | Beard Robert P | Chief Strategy & Legal Officer | Sell | 500 | $309.32 | $155K | 51K |
| 2026-09-02 | Neal-Graves Lisa | n/a | Sell | 2K | $268.42 | $591K | 13K |
| 2026-09-01 | Eng Julie Sheridan | Chief Technology Officer | Sell | 6K | $270.69 | $1.6M | 41K |
| 2026-08-31 | Digirolomo Enrico | n/a | Sell | 2K | $276.85 | $629K | 17K |
| 2026-08-31 | SKAGGS STEPHEN A | n/a | Sell | 2K | $276.88 | $629K | 15K |
| 2026-08-31 | Eng Julie Sheridan | Chief Technology Officer | Sell | 7K | $276.83 | $2.0M | 47K |
| 2026-08-28 | Place Jeffrey B. | Chief Supply Chain Officer | Grant | 3K | $0.00 | $0 | 21K |
| 2026-08-28 | Mocciaro Ilaria | Chief Accounting Officer | Tax withholding | 2K | $295.39 | $642K | 24K |
| 2026-08-28 | Mocciaro Ilaria | Chief Accounting Officer | Grant | 2K | $0.00 | $0 | 26K |
| 2026-08-28 | Mocciaro Ilaria | Chief Accounting Officer | Grant | 2K | $0.00 | $0 | 24K |
| 2026-08-28 | Luther Sherri R | CFO and Treasurer | Tax withholding | 3K | $295.39 | $766K | 71K |
| 2026-08-28 | Luther Sherri R | CFO and Treasurer | Grant | 9K | $0.00 | $0 | 73K |
| 2026-08-28 | Eng Julie Sheridan | Chief Technology Officer | Tax withholding | 13K | $295.39 | $3.8M | 54K |
| 2026-08-28 | Eng Julie Sheridan | Chief Technology Officer | Grant | 12K | $0.00 | $0 | 67K |
| 2026-08-28 | Eng Julie Sheridan | Chief Technology Officer | Grant | 5K | $0.00 | $0 | 55K |
| 2026-08-28 | Beard Robert P | Chief Strategy & Legal Officer | Tax withholding | 2K | $295.39 | $560K | 52K |
| 2026-08-28 | Beard Robert P | Chief Strategy & Legal Officer | Grant | 5K | $0.00 | $0 | 54K |
| 2026-08-28 | ANDERSON JAMES ROBERT | CEO | Tax withholding | 12K | $295.39 | $3.5M | 185K |
| 2026-08-28 | ANDERSON JAMES ROBERT | CEO | Grant | 31K | $0.00 | $0 | 197K |
| 2026-08-18 | Luther Sherri R | Chief Financial Officer | Sell | 3K | $324.00 | $972K | 64K |
| 2026-07-22 | Luther Sherri R | Chief Financial Officer | Sell | 1K | $306.68 | $307K | 67K |
| 2026-06-03 | ANDERSON JAMES ROBERT | CEO | Tax withholding | 26K | $426.89 | $11.0M | 166K |
| 2026-05-12 | Luther Sherri R | Chief Financial Officer | Sell | 2K | $372.96 | $746K | 68K |
| 2026-05-11 | Xia Howard H. | n/a | Sell | 500 | $344.00 | $172K | 52K |
| 2026-05-11 | Xia Howard H. | n/a | Option exercise | 2K | $21.67 | $43K | 52K |
| 2026-04-22 | Luther Sherri R | Chief Financial Officer | Sell | 2K | $351.00 | $702K | 70K |
| 2026-03-17 | Xia Howard H. | n/a | Sell | 1K | $236.22 | $293K | 50K |
| 2026-03-17 | Xia Howard H. | n/a | Sell | 1K | $245.57 | $246K | 53K |
| 2026-03-17 | Xia Howard H. | n/a | Option exercise | 3K | $21.67 | $70K | 54K |
| 2026-03-16 | Xia Howard H. | n/a | Sell | 1K | $258.00 | $258K | 50K |
| 2026-03-16 | Xia Howard H. | n/a | Option exercise | 1K | $21.67 | $22K | 51K |
| 2026-03-10 | Eng Julie Sheridan | Chief Technology Officer | Sell | 1K | $258.18 | $375K | 49K |
| 2026-03-09 | SKAGGS STEPHEN A | n/a | Sell | 4K | $243.13 | $857K | 17K |
| 2026-03-06 | Digirolomo Enrico | n/a | Gift | 2K | $0.00 | $0 | 16K |
| 2026-03-06 | Digirolomo Enrico | n/a | Sell | 4K | $241.50 | $945K | 17K |
| 2026-03-02 | Eng Julie Sheridan | Chief Technology Officer | Sell | 3K | $291.42 | $814K | 51K |
| 2026-02-12 | Luther Sherri R | Chief Financial Officer | Sell | 4K | $217.74 | $871K | 72K |
| 2026-02-11 | Xia Howard H. | n/a | Grant | 279 | $0.00 | $0 | 50K |
| 2026-02-11 | VIJ SANDEEP | n/a | Grant | 279 | $0.00 | $0 | 16K |
| 2026-02-11 | STERLING MICHELLE M | n/a | Grant | 279 | $0.00 | $0 | 9K |
| 2026-02-11 | SKAGGS STEPHEN A | n/a | Grant | 279 | $0.00 | $0 | 20K |
| 2026-02-11 | SADASIVAM SHAKER | n/a | Grant | 279 | $0.00 | $0 | 41K |
| 2026-02-11 | Patrick Elizabeth | n/a | Grant | 279 | $0.00 | $0 | 5K |
| 2026-02-11 | Neal-Graves Lisa | n/a | Grant | 279 | $0.00 | $0 | 15K |
| 2026-02-11 | Hatter Patricia | n/a | Grant | 279 | $0.00 | $0 | 24K |
| 2026-02-11 | MOTLEY DAVID L | n/a | Grant | 279 | $0.00 | $0 | 26K |
| 2026-02-11 | Dreyer Michael L | n/a | Grant | 279 | $0.00 | $0 | 12K |
| 2026-02-11 | Digirolomo Enrico | n/a | Grant | 279 | $0.00 | $0 | 21K |
| 2026-02-11 | CORASANTI JOSEPH J | n/a | Grant | 279 | $0.00 | $0 | 80K |
| 2025-12-10 | CORASANTI JOSEPH J | n/a | Sell | 15K | $196.74 | $3.0M | 80K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are the rarer, stronger signal.
Planned sales (Form 144)
Newest first. JSON9 Form 144 notices on file for COHR worth $8.7M at the prices reported; 9 in the last 90 days worth $8.7M. Latest: ENRICO DIGIROLAMO filed on 2026-09-11 to sell 5,315 shares ($1.6M) from 2026-09-11.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-09-11 | ENRICO DIGIROLAMODirector | 5K | $1.6M | 0.003% | 2026-09-11 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-09 | ROBERT P BEARDOfficer | 500 | $155K | 0.000% | 2026-09-09 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-02 | LISA NEAL-GRAVESDirector | 2K | $591K | 0.001% | 2026-09-02 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-01 | JULIE S ENGOfficer | 6K | $1.7M | 0.003% | 2026-09-01 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-31 | STEPHEN SKAGGSDirector | 2K | $634K | 0.001% | 2026-08-31 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-31 | JULIE S ENGOfficer | 7K | $2.0M | 0.004% | 2026-08-31 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-31 | ENRICO DIGIROLAMODirector | 2K | $634K | 0.001% | 2026-08-31 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-18 | Sherri LutherOfficer | 3K | $1.1M | 0.002% | 2026-08-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-07-22 | Sherri LutherOfficer | 1K | $317K | 0.001% | 2026-07-22 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person, newest filing first. JSON7 holders above 5% have filed on COHR, 1 on Schedule 13D (active intent). The largest reported stake is FMR LLC at 15.0% of the class (23,572,803 shares), filed 2026-02-05 for an event on 2025-12-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-04-29 | 13G | Vanguard Capital Managementinvestment adviser | 14.0M | 7.5% | 2026-03-31 |
| 2026-04-29 | 13G | Vanguard Portfolio Managementinvestment adviser | 9.5M | 5.0% | 2026-03-31 |
| 2026-04-24 | 13G/Ano. 6 | BlackRock, Inc.parent holding company | 13.0M | 6.6% | 2026-03-31 |
| 2026-03-26 | 13G/Ano. 1 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2026-02-11 | 13D/Ano. 6 | BCPE Watson (DE) BML, LPpartnership | 0 | 0.0% | 2026-02-09 |
| 2026-02-05 | 13G/Ano. 3 | FMR LLCparent holding company | 23.6M | 15.0% | 2025-12-31 |
| 2026-02-05 | 13G/Ano. 3 | Abigail P. Johnsonindividual | 23.6M | 15.0% | 2025-12-31 |
| 2025-12-12 | 13D/Ano. 5 | BCPE Watson (DE) BML, LPpartnership | 9.8M | 5.2% | 2025-12-10 |
| 2025-12-04 | 13D/Ano. 4 | BCPE Watson (DE) BML, LPpartnership | 14.9M | 7.9% | 2025-12-02 |
| 2025-11-24 | 13D/Ano. 3 | BCPE Watson (DE) BML, LPpartnership | 14.9M | 7.9% | 2025-11-20 |
| 2025-11-12 | 13D/Ano. 2 | BCPE Watson (DE) BML, LPpartnership | 22.4M | 11.9% | 2025-11-07 |
| 2025-11-07 | 13G/Ano. 2 | Abigail P. Johnsonindividual | 17.1M | 10.9% | 2025-10-31 |
| 2025-11-07 | 13G/Ano. 2 | FMR LLCparent holding company | 17.1M | 10.9% | 2025-10-31 |
| 2025-11-05 | 13G/Ano. 1 | FMR LLCparent holding company | 12.9M | 8.2% | 2025-09-30 |
| 2025-11-05 | 13G/Ano. 1 | Abigail P. Johnsonindividual | 12.9M | 8.2% | 2025-09-30 |
13F holders
Tracked managers holding COHR at their latest 13F. JSON8 of the 30 tracked managers held COHR at their latest 13F, $1.91B in total at quarter-end prices. Citadel Advisors is the largest at $877.6M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 4 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Citadel Advisors | 2026-06-30 | 2.2M | $877.6M | 0.10% | -365K |
| D. E. Shaw & Co. | 2026-06-30 | 1.8M | $707.7M | 0.34% | +1.7M |
| Fisher Asset Management | 2026-06-30 | 260K | $102.5M | 0.03% | -80K |
| Millennium Management | 2026-06-30 | 257K | $101.5M | 0.04% | new or n/a |
| AQR Capital Management | 2026-06-30 | 138K | $54.3M | 0.02% | +45K |
| Point72 Asset Management | 2026-06-30 | 110K | $43.3M | 0.05% | -565K |
| Two Sigma Investments | 2026-06-30 | 55K | $21.9M | 0.02% | +49K |
| Bridgewater Associates | 2026-06-30 | 15K | $6.0M | 0.02% | -148K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
Financials
SEC XBRL, as filed. JSONIn Q4 2026 (quarter ended 2026-06-30) COHERENT CORP. reported revenue of $2.05B, up 33.7% from the same quarter a year earlier, and net income of $240.5M. In FY 2026 it generated $79.5M of operating cash flow. As of 2026-06-30, cash was $1.16B against $3.22B of debt.
- Cash
- $1.16B
- Debt
- $3.22B
- Equity
- $10.90B
- Total assets
- $18.30B
- Shares outstanding
- 195,832,246
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q4 2026derived | 2026-06-30 | $2.05B | $240.5M | 11.8% | n/a |
| Q1 2026 | 2026-03-31 | $1.81B | $191.4M | 10.6% | 0.97 |
| Q4 2025 | 2025-12-31 | $1.69B | $146.7M | 8.7% | 0.76 |
| Q3 2025 | 2025-09-30 | $1.58B | $226.3M | 14.3% | 1.19 |
| Q4 2025derived | 2025-06-30 | $1.53B | -$95.6M | -6.3% | n/a |
| Q1 2025 | 2025-03-31 | $1.50B | $15.7M | 1.0% | -0.11 |
| Q4 2024 | 2024-12-31 | $1.43B | $103.4M | 7.2% | 0.44 |
| Q3 2024 | 2024-09-30 | $1.35B | $25.9M | 1.9% | -0.04 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2026 | 2026-06-30 | $7.12B | $805.0M | $79.5M | $1.10B | n/a | n/a |
| FY 2025 | 2025-06-30 | $5.81B | $49.4M | $633.6M | $440.8M | n/a | n/a |
| FY 2024 | 2024-06-30 | $4.71B | -$156.2M | $545.7M | $346.8M | n/a | n/a |
| FY 2022 | 2022-06-30 | $3.32B | $234.8M | $413.3M | $314.3M | $0 | n/a |
| FY 2021 | 2021-06-30 | $3.11B | $297.6M | $574.4M | $146.3M | $0 | n/a |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are cash paid to repurchase common stock in the year (XBRL PaymentsForRepurchaseOfCommonStock), not authorizations. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-08-10 from the cover page.
What this page is
COHERENT CORP. in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page pulls every series the site collects for one ticker onto one URL, keyed by the SEC's own ticker list, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a summary sentence built from the rows (last value, change, range with dates) and its own JSON and CSV links. Nothing on the page is written by a model; the sentences change only when the data does. A page exists only for companies with data in at least two series, and every section says when its source last updated.
This page follows COHERENT CORP. (COHR), SEC CIK 820318, listed on NYSE, classified by the SEC as optical instruments & lenses. The cross-market tables live on the short interest and insider transactions hubs.
Source and method
- Short interest
- FINRA consolidated short interestTwice a month, about eight business days after settlement. Latest 2026-08-31.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-11.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-14.JSON and CSV
- Planned sales
- SEC EDGAR Form 144EDGAR read every 30 minutes; a notice is filed on or before the sell order. Latest 2026-09-11.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GEDGAR read every 30 minutes; 13D within five business days of crossing 5%, 13G on the passive schedule. Latest 2026-04-29.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRQuarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC XBRL company factsRefreshed weekly from the SEC's structured data; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
- Insider trades
- SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-09-09.JSON and CSV
- Company record
- EDGAR filing index for CIK 820318Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 30 requests a minute without a key, 120 a minute with a key from a free account.
Data checks. Every dataset is checked against its source once a day. This dataset passed the last run, 14 Sep 05:40 UTC.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a crowded short are the combination that has historically preceded squeezes; insider sells next to a crowded short are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
Other companies the SEC classifies as optical instruments & lenses
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- UTHRUNITED THERAPEUTICS Corp
- CRWVCoreWeave, Inc.
- RCGRENN Fund, Inc.
- ANETArista Networks, Inc.
- DDOGDatadog, Inc.
- NETCloudflare, Inc.
- DELLDell Technologies Inc.
- GOOGAlphabet Inc.
- CRWDCrowdStrike Holdings, Inc.
- TPLTexas Pacific Land Corp
- MRNAModerna, Inc.
- COINCoinbase Global, Inc.
- NOWServiceNow, Inc.
- MORNMorningstar, Inc.
- CPIXCUMBERLAND PHARMACEUTICALS INC
- DASHDoorDash, Inc.
- ZMZoom Communications, Inc.
- TDGTransDigm Group INC
- UBERUber Technologies, Inc
Datasets
Frequently Asked Questions
How much of COHR is sold short?
What is COHR's daily short volume?
Does COHR have fails to deliver?
Are COHR insiders buying or selling?
Have COHR insiders filed to sell?
Who owns more than 5% of COHR?
What did COHR report last quarter?
Which funds hold COHR?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.