Seagate Technology Holdings plc (STX)
Every FINRA and SEC series the site collects for Seagate Technology Holdings plc: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on Nasdaq, classified by the SEC as computer storage devices.
8.2M
Short interest
settlement 2026-08-14
1.7
Days to cover
+1.4% vs prior
56.0%
Short share of volume
2026-09-11
860
Fails to deliver
settlement 2026-08-12
-$117.4M
Insider flow, 90 days
0 buys, 179 sells
As of 2026-09-11.
Short interest
FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSONAs of 14 August 2026, short interest in STX is 8,161,824 shares, up 819,724 shares over the last month. Over the last 48 readings it ranged from 6,584,569 shares (30 June 2026) to 18,855,185 shares (30 April 2025). At the reported average volume of 4.7M shares a day that is 1.7 days to cover.
Embed this chartfree, with the attribution line it carries
<iframe src="https://xoomar.com/embed/stocks/stx" 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 |
|---|---|---|---|---|
| 2026-08-14 | 8,161,824 | +1.4% | 4,733,552 | 1.72 |
| 2026-07-31 | 8,047,106 | +9.6% | 6,193,464 | 1.30 |
| 2026-07-15 | 7,342,100 | +11.5% | 4,319,013 | 1.70 |
| 2026-06-30 | 6,584,569 | -22.1% | 5,867,235 | 1.12 |
| 2026-06-15 | 8,446,780 | -6.7% | 3,201,676 | 2.64 |
| 2026-05-29 | 9,050,053 | -2.7% | 3,464,807 | 2.61 |
| 2026-05-15 | 9,303,817 | +8.0% | 4,740,812 | 1.96 |
| 2026-04-30 | 8,618,343 | +2.1% | 4,342,880 | 1.98 |
| 2026-04-15 | 8,441,958 | -7.7% | 3,701,416 | 2.28 |
| 2026-03-31 | 9,144,048 | -7.4% | 3,984,174 | 2.30 |
| 2026-03-13 | 9,878,452 | +0.3% | 3,240,286 | 3.05 |
| 2026-02-27 | 9,846,971 | -19.4% | 2,800,521 | 3.52 |
| 2026-02-13 | 12,210,944 | +10.4% | 4,632,471 | 2.64 |
| 2026-01-30 | 11,057,152 | -11.5% | 6,197,658 | 1.78 |
| 2026-01-15 | 12,489,185 | -4.8% | 3,591,320 | 3.48 |
| 2025-12-31 | 13,123,509 | -3.3% | 4,487,355 | 2.92 |
| 2025-12-15 | 13,574,640 | +7.1% | 3,159,499 | 4.30 |
| 2025-11-28 | 12,674,467 | -4.5% | 3,003,999 | 4.22 |
| 2025-11-14 | 13,266,821 | -9.8% | 4,743,121 | 2.80 |
| 2025-10-31 | 14,703,473 | -2.2% | 5,136,226 | 2.86 |
| 2025-10-15 | 15,035,955 | -9.9% | 5,553,084 | 2.71 |
| 2025-09-30 | 16,697,919 | -1.2% | 4,201,289 | 3.97 |
| 2025-09-15 | 16,900,916 | -6.4% | 4,183,673 | 4.04 |
| 2025-08-29 | 18,048,597 | +7.5% | 2,507,749 | 7.20 |
Daily short volume
FINRA Reg SHO, last 60 sessions. JSONAs of 11 September 2026, the short share of STX volume is 56.0%, up 15.4 points over the last five sessions. Over the last 52 readings it ranged from 19.1% (2 July 2026) to 60.6% (10 September 2026). The latest reading is 13.2 points above the 30-session average of 42.8%, on 1.8M shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-09-11 | 981K | 1.8M | 56.0% | 6,831 |
| 2026-09-10 | 1.0M | 1.7M | 60.6% | 26,877 |
| 2026-09-09 | 1.2M | 2.1M | 60.1% | 151 |
| 2026-09-08 | 1.4M | 2.5M | 54.5% | 2,355 |
| 2026-09-04 | 554K | 1.3M | 44.0% | 2,046 |
| 2026-09-03 | 610K | 1.5M | 40.6% | 437 |
| 2026-09-02 | 505K | 1.5M | 34.8% | 851 |
| 2026-09-01 | 435K | 1.2M | 35.8% | 2,383 |
| 2026-08-31 | 511K | 1.6M | 31.5% | 1,336 |
| 2026-08-28 | 528K | 1.6M | 32.1% | 405 |
| 2026-08-27 | 790K | 1.7M | 46.9% | 87 |
| 2026-08-26 | 564K | 1.2M | 47.3% | 133 |
| 2026-08-25 | 409K | 1.1M | 35.6% | 3,462 |
| 2026-08-24 | 511K | 1.6M | 31.9% | 890 |
| 2026-08-21 | 502K | 1.4M | 35.6% | 4,866 |
| 2026-08-20 | 686K | 2.0M | 33.6% | 4,590 |
| 2026-08-19 | 999K | 3.3M | 29.8% | 3,592 |
| 2026-08-18 | 1.1M | 2.6M | 41.8% | 1,369 |
| 2026-08-17 | 1.2M | 2.5M | 48.5% | 6,508 |
| 2026-08-14 | 1.9M | 3.3M | 57.1% | 1,404 |
| 2026-08-13 | 1.5M | 2.7M | 55.8% | 7,841 |
| 2026-08-12 | 1.6M | 3.1M | 52.4% | 1,542 |
| 2026-08-11 | 774K | 2.1M | 37.4% | 8,804 |
| 2026-08-10 | 950K | 2.9M | 32.5% | 229,241 |
| 2026-08-07 | 1.3M | 3.5M | 38.0% | 185,034 |
| 2026-08-06 | 1.5M | 3.8M | 40.8% | 1,023 |
| 2026-08-05 | 964K | 2.5M | 37.8% | 2,746 |
| 2026-08-04 | 1.1M | 2.8M | 38.0% | 6,755 |
| 2026-08-03 | 1.3M | 3.0M | 44.8% | 6,162 |
| 2026-07-31 | 1.4M | 2.9M | 47.6% | 7,822 |
Fails to deliver
SEC, by settlement date. JSONAs of 12 August 2026, the fails-to-deliver balance in STX is 860 shares, down 966 shares over the last settlement date. Over the last 52 readings it ranged from 1 share (20 February 2026) to 20,724 shares (2 February 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-08-12 | 860 | $820.52 | $706K |
| 2026-08-11 | 1,826 | $800.99 | $1.5M |
| 2026-08-07 | 227 | $852.95 | $194K |
| 2026-08-03 | 253 | $856.13 | $217K |
| 2026-07-29 | 1 | $747.30 | $747 |
| 2026-07-20 | 2,038 | $787.66 | $1.6M |
| 2026-07-17 | 116 | $745.49 | $86K |
| 2026-07-16 | 56 | $828.30 | $46K |
| 2026-07-13 | 542 | $910.34 | $493K |
| 2026-07-09 | 4,700 | $860.02 | $4.0M |
| 2026-07-08 | 276 | $827.64 | $228K |
| 2026-07-06 | 20 | $820.16 | $16K |
| 2026-06-29 | 100 | $899.90 | $90K |
| 2026-06-25 | 600 | $993.25 | $596K |
| 2026-06-22 | 3,852 | $1070.23 | $4.1M |
| 2026-06-15 | 2,011 | $931.04 | $1.9M |
| 2026-06-12 | 17 | $868.09 | $15K |
| 2026-06-09 | 16 | $876.77 | $14K |
| 2026-06-08 | 2,817 | $847.47 | $2.4M |
| 2026-06-05 | 16,639 | $925.99 | $15.4M |
| 2026-06-03 | 3 | $926.61 | $3K |
| 2026-06-01 | 300 | $879.80 | $264K |
| 2026-04-30 | 9,451 | $643.30 | $6.1M |
| 2026-04-29 | 17,572 | $579.03 | $10.2M |
| 2026-04-23 | 1 | $579.88 | $580 |
| 2026-04-20 | 2,100 | $547.75 | $1.2M |
| 2026-04-16 | 1 | $519.60 | $520 |
| 2026-04-14 | 4,112 | $513.28 | $2.1M |
| 2026-04-13 | 294 | $503.13 | $148K |
| 2026-04-08 | 2 | $468.72 | $937 |
Insider trades
SEC Form 4, newest first, 50 of 100 shown. JSONInsiders at STX reported 179 open-market sells worth $117.4M 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: Teh Ban Seng (EVP & Chief Commercial Officer) on 2026-09-10.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-10 | Teh Ban Seng | EVP & Chief Commercial Officer | Sell | 663 | $860.09 | $570K | 6K |
| 2026-09-10 | Romano Gianluca | EVP & CFO | Sell | 826 | $862.13 | $712K | 30K |
| 2026-09-10 | Romano Gianluca | EVP & CFO | Sell | 523 | $862.13 | $450K | 29K |
| 2026-09-10 | Morris John Christopher | EVP & CTO | Sell | 319 | $862.14 | $275K | 16K |
| 2026-09-10 | Morris John Christopher | EVP & CTO | Sell | 253 | $862.13 | $218K | 16K |
| 2026-09-10 | MOSLEY WILLIAM D | CEO | Sell | 1K | $862.14 | $1.1M | 298K |
| 2026-09-10 | MOSLEY WILLIAM D | CEO | Sell | 2K | $862.13 | $1.3M | 296K |
| 2026-09-09 | Teh Ban Seng | EVP & Chief Commercial Officer | Option exercise | 663 | $0.00 | $0 | 6K |
| 2026-09-09 | Teh Ban Seng | EVP & Chief Commercial Officer | Option exercise | 600 | $0.00 | $0 | 6K |
| 2026-09-09 | Romano Gianluca | EVP & CFO | Option exercise | 2K | $0.00 | $0 | 30K |
| 2026-09-09 | Romano Gianluca | EVP & CFO | Option exercise | 959 | $0.00 | $0 | 29K |
| 2026-09-09 | Morris John Christopher | EVP & CTO | Option exercise | 631 | $0.00 | $0 | 16K |
| 2026-09-09 | Morris John Christopher | EVP & CTO | Option exercise | 500 | $0.00 | $0 | 16K |
| 2026-09-09 | MOSLEY WILLIAM D | CEO | Option exercise | 2K | $0.00 | $0 | 299K |
| 2026-09-09 | MOSLEY WILLIAM D | CEO | Option exercise | 3K | $0.00 | $0 | 298K |
| 2026-09-09 | Chong Kian Fatt | EVP Global Operations | Option exercise | 379 | $0.00 | $0 | 10K |
| 2026-09-09 | Chong Kian Fatt | EVP Global Operations | Option exercise | 202 | $0.00 | $0 | 10K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 80 | $829.10 | $66K | 295K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 120 | $827.90 | $99K | 295K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 340 | $826.86 | $281K | 296K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 580 | $826.00 | $479K | 296K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 1K | $824.05 | $1.0M | 297K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 600 | $822.89 | $494K | 298K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 480 | $822.05 | $395K | 299K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 920 | $820.89 | $755K | 299K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 1K | $819.84 | $1.1M | 300K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 1K | $818.78 | $852K | 302K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 2K | $817.71 | $1.7M | 303K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 4K | $816.75 | $3.5M | 305K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 5K | $815.75 | $3.7M | 309K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 3K | $814.75 | $2.3M | 314K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 2K | $813.74 | $1.7M | 316K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 1K | $812.55 | $975K | 318K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 2K | $811.73 | $1.3M | 320K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 1K | $810.78 | $896K | 321K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 1K | $809.55 | $939K | 322K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 960 | $808.62 | $776K | 324K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 160 | $805.55 | $129K | 325K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Sell | 357 | $804.61 | $287K | 325K |
| 2026-09-01 | MOSLEY WILLIAM D | CEO | Option exercise | 14K | $46.23 | $647K | 325K |
| 2026-09-01 | Conyers Yolanda Lee | n/a | Sell | 750 | $815.11 | $611K | 3K |
| 2026-08-24 | Lee James CI | EVP & CLO | Sell | 593 | $802.67 | $476K | 1K |
| 2026-08-24 | Lee James CI | EVP & CLO | Sell | 567 | $799.44 | $453K | 2K |
| 2026-08-24 | Lee James CI | EVP & CLO | Sell | 600 | $797.39 | $478K | 4K |
| 2026-08-24 | Lee James CI | EVP & CLO | Sell | 845 | $795.90 | $673K | 4K |
| 2026-08-24 | Lee James CI | EVP & CLO | Sell | 968 | $794.77 | $769K | 5K |
| 2026-08-24 | Lee James CI | EVP & CLO | Sell | 480 | $793.66 | $381K | 6K |
| 2026-08-24 | Lee James CI | EVP & CLO | Sell | 440 | $791.80 | $348K | 7K |
| 2026-08-24 | Lee James CI | EVP & CLO | Sell | 560 | $789.25 | $442K | 7K |
| 2026-08-24 | Lee James CI | EVP & CLO | Sell | 200 | $788.03 | $158K | 8K |
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. JSON19 Form 144 notices on file for STX worth $201.6M at the prices reported; 19 in the last 90 days worth $201.6M. Latest: GIANLUCA ROMANO filed on 2026-09-11 to sell 50,498 shares ($43.5M) from 2026-09-11.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-09-11 | GIANLUCA ROMANOOfficer | 50K | $43.5M | 0.022% | 2026-09-11 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-10 | BAN SENG TEHOfficer | 663 | $570K | 0.000% | 2026-09-10 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-10 | Romano GianlucaOfficer | 1K | $1.2M | 0.001% | 2026-09-10 | Morgan Stanley |
| 2026-09-10 | Morris John ChristopherOfficer | 601 | $518K | 0.000% | 2026-09-10 | Morgan Stanley |
| 2026-09-10 | MOSLEY WILLIAM DOfficer, Director | 3K | $2.6M | 0.001% | 2026-09-10 | Morgan Stanley |
| 2026-09-01 | WILLIAM D. MOSLEYDirector, Officer | 90K | $74.6M | 0.040% | 2026-09-01 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-01 | YOLANDA CONYERSDirector | 750 | $621K | 0.000% | 2026-09-01 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-24 | JAMES LEEOfficer | 9K | $7.7M | 0.004% | 2026-08-24 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-21 | BAN SENG TEHOfficer | 10K | $8.4M | 0.004% | 2026-08-21 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-21 | Romano GianlucaOfficer | 9K | $7.8M | 0.004% | 2026-08-21 | Morgan Stanley |
| 2026-08-21 | Morris John ChristopherOfficer | 4K | $3.0M | 0.002% | 2026-08-21 | Morgan Stanley |
| 2026-08-21 | MOSLEY WILLIAM DOfficer, Director | 18K | $15.5M | 0.008% | 2026-08-21 | Morgan Stanley |
| 2026-08-21 | Lee James CIOfficer | 4K | $3.4M | 0.002% | 2026-08-21 | Morgan Stanley |
| 2026-08-20 | BAN SENG TEHOfficer | 6K | $5.1M | 0.003% | 2026-08-20 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-20 | JOHN MORRISOfficer | 523 | $435K | 0.000% | 2026-08-20 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-13 | BAN SENG TEHOfficer | 7K | $6.8M | 0.003% | 2026-08-13 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-07 | GIANLUCA ROMANOOfficer | 22K | $18.9M | 0.010% | 2026-08-07 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-07-30 | JAMES LEEOfficer | 694 | $531K | 0.000% | 2026-07-30 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-07-23 | Lee James CIOfficer | 543 | $491K | 0.000% | 2026-07-23 | Morgan Stanley |
Large holders (13D and 13G)
One row per reporting person, newest filing first. JSON3 holders above 5% have filed on STX, all on Schedule 13G (passive). The largest reported stake is Vanguard Portfolio Management at 3.6% of the class (7,999,686 shares), filed 2026-07-31 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-05 | 13G/Ano. 4 | Sanders Capital, LLCinvestment adviser | 3.5M | 1.6% | 2026-06-30 |
| 2026-08-05 | 13G/Ano. 4 | Lewis A. Sandersother entity | 3.5M | 1.6% | 2026-06-30 |
| 2026-07-31 | 13G/Ano. 1 | Vanguard Portfolio Managementinvestment adviser | 8.0M | 3.6% | 2026-06-30 |
13F holders
Tracked managers holding STX at their latest 13F. JSON12 of the 30 tracked managers held STX at their latest 13F, $12.25B in total at quarter-end prices. Citadel Advisors is the largest at $4.99B (0.6% of its portfolio) as of 2026-06-30. Over the prior quarter 9 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Citadel Advisors | 2026-06-30 | 5.2M | $4.99B | 0.57% | +1.8M |
| D. E. Shaw & Co. | 2026-06-30 | 1.9M | $1.80B | 0.86% | +56K |
| AQR Capital Management | 2026-06-30 | 1.2M | $1.20B | 0.42% | +244K |
| Millennium Management | 2026-06-30 | 1.1M | $1.05B | 0.38% | +69K |
| Lone Pine Capital | 2026-06-30 | 1.0M | $965.1M | 5.90% | new or n/a |
| Point72 Asset Management | 2026-06-30 | 886K | $854.6M | 0.94% | +193K |
| Renaissance Technologies | 2026-06-30 | 457K | $441.3M | 0.61% | +147K |
| Two Sigma Investments | 2026-06-30 | 378K | $364.5M | 0.26% | +231K |
| Tiger Global Management | 2026-06-30 | 285K | $275.1M | 1.15% | new or n/a |
| Bridgewater Associates | 2026-06-30 | 200K | $192.8M | 0.79% | -129K |
| Duquesne Family Office | 2026-06-30 | 122K | $117.7M | 2.26% | +71K |
| Fisher Asset Management | 2026-06-30 | 1K | $1.2M | 0.00% | +255 |
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 2026-07-03) Seagate Technology Holdings plc reported revenue of $3.63B, up 28.5% from the same quarter a year earlier. In FY 2026 it generated $3.67B of operating cash flow and spent $176.0M on buybacks and $634.0M on dividends. As of 2026-07-03, cash was $1.70B against $3.38B of debt.
- Cash
- $1.70B
- Debt
- $3.38B
- Equity
- $2.17B
- Total assets
- $9.97B
- Shares outstanding
- 226,644,518
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q4 2026derived | 2026-07-03 | $3.63B | n/a | n/a | n/a |
| Q1 2026 | 2026-04-03 | $3.11B | $748.0M | 24.0% | 3.27 |
| Q4 2025 | 2026-01-02 | $2.83B | $593.0M | 21.0% | 2.60 |
| Q3 2025 | 2025-10-03 | $2.63B | $549.0M | 20.9% | 2.43 |
| Q4 2024derived | 2025-06-27 | $2.44B | n/a | n/a | n/a |
| Q1 2025 | 2025-03-28 | $2.16B | $340.0M | 15.7% | 1.57 |
| Q4 2024 | 2024-12-27 | $2.33B | $336.0M | 14.5% | 1.55 |
| Q3 2024 | 2024-09-27 | $2.17B | $305.0M | 14.1% | 1.41 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2026 | 2026-07-03 | $12.20B | n/a | $3.67B | $569.0M | $176.0M | $634.0M |
| FY 2024 | 2025-06-27 | $9.10B | n/a | $1.08B | $265.0M | $0 | $600.0M |
| FY 2023 | 2024-06-28 | $6.55B | n/a | $918.0M | $254.0M | $0 | $585.0M |
| FY 2022 | 2022-07-01 | $11.66B | n/a | $1.66B | $381.0M | $1.80B | $610.0M |
| FY 2021 | 2021-07-02 | $10.68B | $1.31B | $1.63B | $498.0M | $2.05B | $649.0M |
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 2026-07-03; shares outstanding as of 2026-07-31 from the cover page.
What this page is
Seagate Technology Holdings plc 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 Seagate Technology Holdings plc (STX), SEC CIK 1137789, listed on Nasdaq, classified by the SEC as computer storage devices. 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 2026-08-14.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 2026-08-12.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 2026-08-05.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 2026-07-03.JSON and CSV
- Insider trades
- SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-09-10.JSON and CSV
- Company record
- EDGAR filing index for CIK 1137789Ticker, 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, 13 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 computer storage devices
- WDCWESTERN DIGITAL CORP
- PEverpure, Inc.
- SNDKSandisk Corp
- CRWVCoreWeave, Inc.
- UTHRUNITED THERAPEUTICS Corp
- TEAMAtlassian Corp
- CVNACARVANA CO.
- CRWDCrowdStrike Holdings, Inc.
- RCGRENN Fund, Inc.
- APPAppLovin Corp
- SESea Ltd
- VICRVICOR CORP
- GOOGLAlphabet Inc.
- ANETArista Networks, Inc.
- CRMSalesforce, Inc.
- RDDTReddit, Inc.
- CRDOCredo Technology Group Holding Ltd
- NVDANVIDIA CORP
- METAMeta Platforms, Inc.
- APPFAPPFOLIO INC
- ALABAstera Labs, Inc.
- IOTSamsara Inc.
- DASHDoorDash, Inc.
- WALWESTERN ALLIANCE BANCORPORATION
Datasets
Frequently Asked Questions
How much of STX is sold short?
What is STX's daily short volume?
Does STX have fails to deliver?
Are STX insiders buying or selling?
Have STX insiders filed to sell?
Who owns more than 5% of STX?
What did STX report last quarter?
Which funds hold STX?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.