Cemex (CX)
Cemex on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders and insider trades. Listed on NYSE, classified by the SEC as cement, hydraulic.
15.0M
Short interest
settlement 2026-10-15
2.7
Days to cover
+0.6 days vs prior
38.5%
Short share of volume
2026-11-02
280
Fails to deliver
settlement 2026-10-14
-$4.2M
Insider flow, 90 days
1 buys, 2 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in CX is 15,011,070 shares, up 4,723,749 shares over the last month. Over the last 48 readings it ranged from 7,028,233 shares (13 March 2026) to 30,846,723 shares (15 July 2025). At the reported average volume of 5.7M shares a day that is 2.7 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/cx" 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 |
|---|---|---|---|---|
| 2026-10-15 | 15,011,070 | -4.1% | 5,651,052 | 2.66 |
| 2026-09-30 | 15,650,424 | +52.1% | 7,747,195 | 2.02 |
| 2026-09-15 | 10,287,321 | -4.9% | 6,244,450 | 1.65 |
| 2026-08-31 | 10,822,303 | +14.9% | 5,914,485 | 1.83 |
| 2026-08-14 | 9,422,513 | -18.3% | 7,769,537 | 1.21 |
| 2026-07-31 | 11,525,821 | +15.0% | 6,845,112 | 1.68 |
| 2026-07-15 | 10,020,998 | +6.8% | 5,722,304 | 1.75 |
| 2026-06-30 | 9,381,996 | -3.3% | 4,023,214 | 2.33 |
| 2026-06-15 | 9,700,245 | -10.0% | 4,340,054 | 2.24 |
| 2026-05-29 | 10,780,842 | +2.3% | 4,430,424 | 2.43 |
| 2026-05-15 | 10,534,641 | +12.2% | 5,881,425 | 1.79 |
| 2026-04-30 | 9,392,221 | -16.5% | 5,855,180 | 1.60 |
| 2026-04-15 | 11,243,891 | +1.4% | 5,050,687 | 2.23 |
| 2026-03-31 | 11,089,340 | +57.8% | 6,953,228 | 1.59 |
| 2026-03-13 | 7,028,233 | -28.2% | 9,813,730 | 1.00 |
| 2026-02-27 | 9,783,380 | +8.7% | 5,256,230 | 1.86 |
| 2026-02-13 | 9,004,523 | -23.5% | 8,091,078 | 1.11 |
| 2026-01-30 | 11,764,172 | +9.7% | 6,782,796 | 1.73 |
| 2026-01-15 | 10,724,962 | +31.0% | 5,963,901 | 1.80 |
| 2025-12-31 | 8,184,899 | +1.6% | 4,465,366 | 1.83 |
| 2025-12-15 | 8,054,129 | -25.0% | 7,151,048 | 1.13 |
| 2025-11-28 | 10,744,515 | -3.3% | 8,174,550 | 1.31 |
| 2025-11-14 | 11,114,393 | -7.8% | 8,477,848 | 1.31 |
| 2025-10-31 | 12,050,875 | -41.3% | 12,652,667 | 1.00 |
| 2025-10-15 | 20,537,899 | +0.9% | 7,717,291 | 2.66 |
| 2025-09-30 | 20,346,685 | +9.8% | 8,556,438 | 2.38 |
| 2025-09-15 | 18,535,218 | -2.0% | 9,934,729 | 1.87 |
| 2025-08-29 | 18,915,863 | -8.2% | 13,719,832 | 1.38 |
| 2025-08-15 | 20,611,587 | -29.8% | 11,968,656 | 1.72 |
| 2025-07-31 | 29,354,568 | -4.8% | 14,860,666 | 1.98 |
| 2025-07-15 | 30,846,723 | +23.9% | 9,539,414 | 3.23 |
| 2025-06-30 | 24,895,784 | -13.4% | 11,584,605 | 2.15 |
| 2025-06-13 | 28,743,488 | +6.3% | 12,703,062 | 2.26 |
| 2025-05-30 | 27,051,906 | +11.1% | 14,681,509 | 1.84 |
| 2025-05-15 | 24,342,869 | -12.8% | 14,963,141 | 1.63 |
| 2025-04-30 | 27,902,610 | +15.3% | 14,883,529 | 1.87 |
| 2025-04-15 | 24,200,018 | +45.3% | 24,606,026 | 1.00 |
| 2025-03-31 | 16,660,759 | -7.1% | 11,080,814 | 1.50 |
| 2025-03-14 | 17,928,937 | -17.1% | 11,890,217 | 1.51 |
| 2025-02-28 | 21,640,966 | -5.8% | 8,668,216 | 2.50 |
| 2025-02-14 | 22,973,431 | +48.4% | 10,055,263 | 2.28 |
| 2025-01-31 | 15,476,465 | +25.2% | 7,991,915 | 1.94 |
| 2025-01-15 | 12,362,553 | -7.8% | 12,334,826 | 1.00 |
| 2024-12-31 | 13,409,320 | +27.4% | 10,847,093 | 1.24 |
| 2024-12-13 | 10,528,193 | +32.1% | 8,763,620 | 1.20 |
| 2024-11-29 | 7,971,928 | +9.3% | 7,058,578 | 1.13 |
| 2024-11-15 | 7,294,593 | -26.4% | 14,165,913 | 1.00 |
| 2024-10-31 | 9,917,231 | +47.5% | 10,147,508 | 1.00 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of CX volume is 38.5%, up 18.6 points over the last five sessions. Over the last 30 readings it ranged from 8.6% (23 September 2026) to 57.1% (29 October 2026). The latest reading is 5.4 points above the 30-session average of 33.1%, on 1.9M shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 730K | 1.9M | 38.5% | 0 |
| 2026-10-30 | 836K | 2.0M | 42.4% | 400 |
| 2026-10-29 | 1.7M | 2.9M | 57.1% | 400 |
| 2026-10-28 | 1.2M | 2.3M | 50.0% | 0 |
| 2026-10-27 | 1.2M | 3.2M | 38.9% | 0 |
| 2026-10-26 | 1.2M | 6.1M | 19.9% | 13,694 |
| 2026-10-23 | 922K | 5.1M | 18.0% | 0 |
| 2026-10-22 | 433K | 2.5M | 17.4% | 0 |
| 2026-10-21 | 1.1M | 4.8M | 23.9% | 4 |
| 2026-10-20 | 889K | 4.1M | 21.4% | 0 |
| 2026-10-19 | 802K | 2.9M | 27.4% | 0 |
| 2026-10-16 | 885K | 7.7M | 11.5% | 0 |
| 2026-10-15 | 941K | 6.5M | 14.5% | 0 |
| 2026-10-14 | 347K | 713K | 48.6% | 0 |
| 2026-10-13 | 455K | 1.2M | 39.6% | 2 |
| 2026-10-12 | 261K | 763K | 34.2% | 344 |
| 2026-10-09 | 458K | 1.2M | 39.6% | 12,131 |
| 2026-10-08 | 841K | 1.5M | 54.8% | 286 |
| 2026-10-07 | 708K | 3.2M | 22.3% | 237 |
| 2026-10-06 | 1.9M | 6.7M | 27.6% | 18,798 |
| 2026-10-05 | 610K | 1.3M | 45.4% | 9 |
| 2026-10-02 | 1.0M | 2.3M | 45.9% | 0 |
| 2026-10-01 | 466K | 918K | 50.7% | 0 |
| 2026-09-30 | 734K | 1.6M | 47.1% | 195 |
| 2026-09-29 | 693K | 2.1M | 33.7% | 200 |
| 2026-09-28 | 1.2M | 5.8M | 20.2% | 0 |
| 2026-09-25 | 1.5M | 2.9M | 51.3% | 0 |
| 2026-09-24 | 1.5M | 4.4M | 33.0% | 1,792 |
| 2026-09-23 | 410K | 4.7M | 8.6% | 790 |
| 2026-09-22 | 648K | 7.3M | 8.9% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 14 October 2026, the fails-to-deliver balance in CX is 280 shares, down 455 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (5 June 2026) to 88,935 shares (29 April 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-14 | 280 | $9.75 | $3K |
| 2026-10-09 | 735 | $9.56 | $7K |
| 2026-10-08 | 387 | $9.59 | $4K |
| 2026-10-01 | 1,926 | $9.51 | $18K |
| 2026-09-30 | 12 | $9.65 | $116 |
| 2026-09-15 | 820 | $10.45 | $9K |
| 2026-09-02 | 18,882 | $10.45 | $197K |
| 2026-09-01 | 36 | $10.74 | $387 |
| 2026-08-31 | 60 | $10.87 | $652 |
| 2026-08-27 | 48 | $10.98 | $527 |
| 2026-08-05 | 28 | $11.61 | $325 |
| 2026-07-29 | 38,903 | $12.00 | $467K |
| 2026-07-23 | 46 | $12.72 | $585 |
| 2026-06-26 | 63 | $12.38 | $780 |
| 2026-06-12 | 17 | $12.70 | $216 |
| 2026-06-09 | 248 | $12.04 | $3K |
| 2026-06-08 | 36 | $12.47 | $449 |
| 2026-06-05 | 2 | $12.94 | $26 |
| 2026-05-22 | 126 | $12.59 | $2K |
| 2026-05-13 | 131 | $13.17 | $2K |
| 2026-05-06 | 5 | $12.87 | $64 |
| 2026-04-29 | 88,935 | $12.13 | $1.1M |
| 2026-03-17 | 245 | $10.77 | $3K |
| 2026-03-04 | 2,944 | $11.40 | $34K |
| 2026-02-02 | 46,501 | $12.48 | $580K |
| 2026-01-30 | 46,503 | $12.89 | $599K |
| 2026-01-26 | 230 | $12.91 | $3K |
| 2026-01-23 | 230 | $12.99 | $3K |
| 2026-01-20 | 18,227 | $12.49 | $228K |
| 2026-01-15 | 400 | $12.57 | $5K |
Insider trades
SEC Form 4, newest first. JSONOver the last 90 days CX insiders reported 1 open-market buy ($6.9M) against 2 sells ($11.2M), so the dollar flow leans toward selling. Latest filing: Martinez Merla Jaime (Chief Comptroller) on 2026-10-14.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-14 | Martinez Merla Jaime | Chief Comptroller | Tax withholding | 35K | $12.13 | $429K | 1.2M |
| 2026-10-14 | Martinez Merla Jaime | Chief Comptroller | Grant | 82K | $0.00 | $0 | 1.3M |
| 2026-09-30 | Doehner Cobian Mauricio | EVP Corporate Affairs | Sell | 928K | $9.57 | $8.9M | 585K |
| 2026-09-25 | Zambrano Lozano Rogelio | Director | Buy | 401K | $17.28 | $6.9M | 10.0M |
| 2026-08-19 | Elizondo de la Garza Oscar Balmore | VP of Global Ent. Services | Sell | 213K | $10.68 | $2.3M | 289K |
| 2026-08-14 | Elizondo de la Garza Oscar Balmore | VP of Global Ent. Services | Tax withholding | 41K | $12.13 | $495K | 502K |
| 2026-08-14 | Elizondo de la Garza Oscar Balmore | VP of Global Ent. Services | Grant | 117K | $0.00 | $0 | 543K |
| 2026-08-14 | Doehner Cobian Mauricio | EVP Corporate Affairs | Tax withholding | 81K | $12.13 | $977K | 1.5M |
| 2026-08-14 | Doehner Cobian Mauricio | EVP Corporate Affairs | Grant | 230K | $0.00 | $0 | 1.6M |
| 2026-08-14 | Cabrera Guerra Jose Antonio | President of Cemex EMEA | Tax withholding | 47K | $12.13 | $565K | 1.3M |
| 2026-08-14 | Cabrera Guerra Jose Antonio | President of Cemex EMEA | Grant | 99K | $0.00 | $0 | 1.3M |
| 2026-08-14 | Ramirez Cantu Alejandro Alberto | President of Cemex SCA&C | Tax withholding | 98K | $12.13 | $1.2M | 1.7M |
| 2026-08-14 | Ramirez Cantu Alejandro Alberto | President of Cemex SCA&C | Grant | 265K | $0.00 | $0 | 1.8M |
| 2026-08-14 | Zambrano Lozano Rogelio | Director | Tax withholding | 640K | $12.13 | $7.8M | 50.3M |
| 2026-08-14 | Zambrano Lozano Rogelio | Director | Grant | 1.8M | $0.00 | $0 | 51.0M |
| 2026-08-14 | Echavez Hernandez Luis | EVP Digital and Org. Develop. | Tax withholding | 145K | $12.13 | $1.8M | 7.9M |
| 2026-08-14 | Echavez Hernandez Luis | EVP Digital and Org. Develop. | Grant | 414K | $0.00 | $0 | 8.1M |
| 2026-08-14 | Gonzalez Flores Jose Antonio | EVP Strat. Plan. & Bus. Dev. | Tax withholding | 132K | $12.13 | $1.6M | 3.2M |
| 2026-08-14 | Gonzalez Flores Jose Antonio | EVP Strat. Plan. & Bus. Dev. | Grant | 378K | $0.00 | $0 | 3.3M |
| 2026-08-14 | Rodriguez Louisa | EVP Communications,PA & IR | Tax withholding | 97K | $12.13 | $1.2M | 1.3M |
| 2026-08-14 | Rodriguez Louisa | EVP Communications,PA & IR | Grant | 217K | $0.00 | $0 | 1.4M |
| 2026-08-14 | Gonzalez Herrera Jesus Vicente | President of Cemex USA | Tax withholding | 173K | $12.13 | $2.1M | 9.8M |
| 2026-08-14 | Gonzalez Herrera Jesus Vicente | President of Cemex USA | Grant | 439K | $0.00 | $0 | 10.0M |
| 2026-08-14 | Muguiro Dominguez Jaime | Chief Executive Officer | Tax withholding | 134K | $12.13 | $1.6M | 6.2M |
| 2026-08-14 | Muguiro Dominguez Jaime | Chief Executive Officer | Grant | 382K | $0.00 | $0 | 6.3M |
| 2026-08-14 | Saldana Madero Roger | Senior Vice President of Legal | Tax withholding | 68K | $12.13 | $820K | 1.1M |
| 2026-08-14 | Saldana Madero Roger | Senior Vice President of Legal | Grant | 193K | $0.00 | $0 | 1.1M |
| 2026-08-14 | Naya Barba Ricardo | EVP Sust., Ops. & Ventures | Tax withholding | 134K | $12.13 | $1.6M | 3.4M |
| 2026-08-14 | Naya Barba Ricardo | EVP Sust., Ops. & Ventures | Grant | 383K | $0.00 | $0 | 3.6M |
| 2026-08-14 | Menendez Sergio Mauricio | President of Cemex Mexico | Tax withholding | 130K | $12.13 | $1.6M | 4.0M |
| 2026-08-14 | Menendez Sergio Mauricio | President of Cemex Mexico | Grant | 373K | $0.00 | $0 | 4.1M |
| 2026-08-14 | Al Haffar Maher | EVP of Finance and Admin & CFO | Tax withholding | 203K | $12.13 | $2.5M | 6.1M |
| 2026-08-14 | Al Haffar Maher | EVP of Finance and Admin & CFO | Grant | 394K | $0.00 | $0 | 6.3M |
| 2026-07-01 | Martinez Merla Jaime | Chief Comptroller | Grant | 8K | $0.00 | $0 | 117K |
| 2026-06-15 | Gonzalez Herrera Jesus Vicente | President of Cemex USA | Grant | 71K | $0.00 | $0 | 955K |
| 2026-06-15 | Gonzalez Herrera Jesus Vicente | President of Cemex USA | Tax withholding | 35K | $12.25 | $430K | 884K |
| 2026-06-15 | Ramirez Cantu Alejandro Alberto | President of Cemex SCA&C | Grant | 30K | $0.00 | $0 | 149K |
| 2026-06-15 | Ramirez Cantu Alejandro Alberto | President of Cemex SCA&C | Tax withholding | 16K | $12.25 | $195K | 118K |
| 2026-06-15 | Rodriguez Louisa | EVP Communications, PA & IR | Tax withholding | 18K | $12.25 | $219K | 84K |
| 2026-06-15 | Rodriguez Louisa | EVP Communications, PA & IR | Grant | 32K | $0.00 | $0 | 116K |
| 2026-06-15 | Elizondo de la Garza Oscar Balmore | VP of Global Ent. Services | Tax withholding | 8K | $12.25 | $94K | 26K |
| 2026-06-15 | Elizondo de la Garza Oscar Balmore | VP of Global Ent. Services | Grant | 17K | $0.00 | $0 | 43K |
| 2026-06-15 | Cabrera Guerra Jose Antonio | President of Cemex EMEA | Tax withholding | 5K | $12.25 | $66K | 112K |
| 2026-06-15 | Cabrera Guerra Jose Antonio | President of Cemex EMEA | Grant | 13K | $0.00 | $0 | 125K |
| 2026-06-15 | Echavez Hernandez Luis | EVP Digital and Org. Develop. | Tax withholding | 36K | $12.25 | $437K | 302K |
| 2026-06-15 | Echavez Hernandez Luis | EVP Digital and Org. Develop. | Grant | 82K | $0.00 | $0 | 383K |
| 2026-06-15 | Doehner Cobian Mauricio | EVP Corporate Affairs | Tax withholding | 16K | $12.25 | $196K | 100K |
| 2026-06-15 | Doehner Cobian Mauricio | EVP Corporate Affairs | Grant | 36K | $0.00 | $0 | 136K |
| 2026-06-15 | Menendez Sergio Mauricio | President of Cemex Mexico | Grant | 75K | $0.00 | $0 | 284K |
| 2026-06-15 | Menendez Sergio Mauricio | President of Cemex Mexico | Tax withholding | 33K | $12.25 | $408K | 209K |
| 2026-06-15 | Naya Barba Ricardo | EVP Sust., Ops. & Ventures | Tax withholding | 32K | $12.25 | $394K | 111K |
| 2026-06-15 | Naya Barba Ricardo | EVP Sust., Ops. & Ventures | Grant | 74K | $0.00 | $0 | 184K |
| 2026-06-12 | Zambrano Lozano Rogelio | Director | Grant | 204K | $0.00 | $0 | 2.2M |
| 2026-06-12 | Zambrano Lozano Rogelio | Director | Tax withholding | 89K | $12.25 | $1.1M | 2.0M |
| 2026-06-12 | Muguiro Dominguez Jaime | Chief Executive Officer | Grant | 72K | $0.00 | $0 | 594K |
| 2026-06-12 | Muguiro Dominguez Jaime | Chief Executive Officer | Tax withholding | 54K | $12.25 | $665K | 522K |
| 2026-06-12 | Saldana Madero Roger | Senior Vice President of Legal | Tax withholding | 14K | $12.25 | $175K | 61K |
| 2026-06-12 | Saldana Madero Roger | Senior Vice President of Legal | Grant | 32K | $0.00 | $0 | 93K |
| 2026-06-12 | Gonzalez Flores Jose Antonio | EVP Strat. Plan. & Bus. Dev. | Grant | 76K | $0.00 | $0 | 216K |
| 2026-06-12 | Gonzalez Flores Jose Antonio | EVP Strat. Plan. & Bus. Dev. | Tax withholding | 33K | $12.25 | $403K | 141K |
| 2026-06-12 | Al Haffar Maher | EVP of Finance and Admin & CFO | Grant | 80K | $0.00 | $0 | 587K |
| 2026-06-12 | Al Haffar Maher | EVP of Finance and Admin & CFO | Tax withholding | 52K | $12.25 | $639K | 507K |
| 2026-05-01 | Elizondo de la Garza Oscar Balmore | VP of Global Ent. Services | Grant | 20K | $0.00 | $0 | 33K |
| 2026-05-01 | Cabrera Guerra Jose Antonio | President of Cemex EMEA | Grant | 39K | $0.00 | $0 | 118K |
| 2026-05-01 | Ramirez Cantu Alejandro Alberto | President of Cemex SCA&C | Grant | 50K | $0.00 | $0 | 134K |
| 2026-05-01 | Zambrano Lozano Rogelio | Director | Grant | 206K | $0.00 | $0 | 2.1M |
| 2026-05-01 | Echavez Hernandez Luis | EVP Digital and Org. Develop. | Grant | 81K | $0.00 | $0 | 337K |
| 2026-05-01 | Gonzalez Herrera Jesus Vicente | President of Cemex USA | Grant | 74K | $0.00 | $0 | 920K |
| 2026-05-01 | Gonzalez Flores Jose Antonio | EVP Strat. Plan. & Bus. Dev. | Grant | 74K | $0.00 | $0 | 174K |
| 2026-05-01 | Muguiro Dominguez Jaime | Chief Executive Officer | Grant | 334K | $0.00 | $0 | 576K |
| 2026-05-01 | Saldana Madero Roger | Senior Vice President of Legal | Grant | 37K | $0.00 | $0 | 76K |
| 2026-05-01 | Naya Barba Ricardo | EVP Sust., Ops. & Ventures | Grant | 72K | $0.00 | $0 | 143K |
| 2026-05-01 | Menendez Sergio Mauricio | President of Cemex Mexico | Grant | 82K | $0.00 | $0 | 242K |
| 2026-05-01 | Rodriguez Louisa | EVP Communications,PA & IR | Grant | 33K | $0.00 | $0 | 102K |
| 2026-05-01 | Al Haffar Maher | EVP of Finance and Admin & CFO | Grant | 85K | $0.00 | $0 | 559K |
| 2026-05-01 | Doehner Cobian Mauricio | EVP Corporate Affairs | Grant | 38K | $0.00 | $0 | 116K |
| 2026-04-28 | Gonzalez Herrera Jesus Vicente | President of Cemex USA | Sell | 35K | $12.16 | $426K | 846K |
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 rarer.
Planned sales (Form 144)
Newest first. JSON5 Form 144 notices on file for CX worth $2.3M at the prices reported; 2 in the last 90 days worth $1.1M. Latest: MAURICIO DOEHNER COBIAN filed on 2026-09-30 to sell 92,790 shares ($888K) from 2026-09-30.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-09-30 | MAURICIO DOEHNER COBIANOfficer | 93K | $888K | 0.006% | 2026-09-30 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-19 | OSCAR BALMORE ELIZONDO DE LA GARZAOfficer | 21K | $227K | 0.001% | 2026-08-19 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-04-28 | JESUS VICENTE GONZALEZ HERRERAOfficer | 35K | $426K | 0.002% | 2026-04-28 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-07 | JESUS VICENTE GONZALEZ HERRERAOfficer | 40K | $409K | 0.003% | 2025-11-07 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-10-31 | Rodriguez LouisaOfficer | 38K | $392K | 0.000% | 2025-10-31 | Charles Schwab & Co |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON1 holder reports 5% or more of CX in its latest filing, on Schedule 13G (passive). The holder is Dodge & Cox at 5.3% of the class (80,187,637 shares), filed 2026-08-13 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-13 | 13G/Ano. 1 | Dodge & Coxinvestment adviser | 80.2M | 5.3% | 2026-06-30 |
13F holders
Tracked managers holding CX at their latest 13F. JSON4 of the 30 tracked managers held CX at their latest 13F, $337.9M in total at quarter-end prices. Millennium Management is the largest at $187.5M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Millennium Management | 2026-06-30 | 15.6M | $187.5M | 0.07% | +6.2M |
| AQR Capital Management | 2026-06-30 | 9.2M | $110.6M | 0.04% | +4.5M |
| Soros Fund Management | 2026-06-30 | 3.1M | $37.7M | 0.46% | +146K |
| Citadel Advisors | 2026-06-30 | 177K | $2.1M | 0.00% | -461K |
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.
What this page is
Cemex 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 puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, 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 one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Cemex (CX), SEC CIK 1076378, listed on NYSE, classified by the SEC as cement, hydraulic. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-14.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-09-30.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-13.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-14.JSON and CSV
- Company record
- EDGAR filing index for CIK 1076378Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
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 large short position are rare and stand out; insider sells next to one 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.
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Datasets
Frequently Asked Questions
How much of CX is sold short?
15,011,070 shares were held short at the 2026-10-15 settlement, 2.7 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is CX's daily short volume?
On 2026-11-02, 730,207 of the 1,898,604 CX shares reported to FINRA were sold short, 38.5% of the day's reported volume. Short volume is a flow for one day, not a position.
Does CX have fails to deliver?
The SEC's latest file shows 280 CX shares failed to deliver at settlement 2026-10-14. Fails are reported per settlement date and published twice a month with a lag.
Are CX insiders buying or selling?
Over the last 90 days CX insiders reported 1 open-market buy ($6.9M) against 2 sells ($11.2M), so the dollar flow leans toward selling. Latest filing: Martinez Merla Jaime (Chief Comptroller) on 2026-10-14.
Have CX insiders filed to sell?
5 Form 144 notices on file for CX worth $2.3M at the prices reported; 2 in the last 90 days worth $1.1M. Latest: MAURICIO DOEHNER COBIAN filed on 2026-09-30 to sell 92,790 shares ($888K) from 2026-09-30.
Who owns 5% or more of CX?
1 holder reports 5% or more of CX in its latest filing, on Schedule 13G (passive). The holder is Dodge & Cox at 5.3% of the class (80,187,637 shares), filed 2026-08-13 for an event on 2026-06-30.
Which tracked 13F managers own CX?
4 of the 30 tracked 13F managers held CX shares at their latest filing, $337.9M in all. The largest: Izzy Englander's Millennium Management (15.6M shares, $187.5M), Cliff Asness's AQR Capital Management (9.2M shares, $110.6M), George Soros's Soros Fund Management (3.1M shares, $37.7M), Ken Griffin's Citadel Advisors (177K shares, $2.1M).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.