VirnetX Holding (VHC)
VirnetX Holding on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders and insider trades. Listed on Nasdaq, classified by the SEC as patent owners & lessors.
149K
Short interest
settlement 2026-10-15
7.7
Days to cover
+5.5 days vs prior
37.1%
Short share of volume
2026-11-02
2
Fails to deliver
settlement 2026-09-25
-$489K
Insider flow, 90 days
0 buys, 11 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 VHC is 148,576 shares, up 11,931 shares over the last month. Over the last 48 readings it ranged from 115,259 shares (31 July 2025) to 183,633 shares (31 December 2024). At the reported average volume of 19K shares a day that is 7.7 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/vhc" 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 | 148,576 | +2.3% | 19,269 | 7.71 |
| 2026-09-30 | 145,302 | +6.3% | 65,252 | 2.23 |
| 2026-09-15 | 136,645 | -3.8% | 212,244 | 1.00 |
| 2026-08-31 | 142,041 | -1.6% | 28,573 | 4.97 |
| 2026-08-14 | 144,371 | -4.5% | 22,373 | 6.45 |
| 2026-07-31 | 151,170 | -0.7% | 12,282 | 12.31 |
| 2026-07-15 | 152,182 | -3.5% | 30,846 | 4.93 |
| 2026-06-30 | 157,666 | +1.3% | 25,709 | 6.13 |
| 2026-06-15 | 155,625 | -1.5% | 24,965 | 6.23 |
| 2026-05-29 | 157,975 | -1.2% | 14,142 | 11.17 |
| 2026-05-15 | 159,852 | -1.4% | 16,641 | 9.61 |
| 2026-04-30 | 162,148 | -1.0% | 22,885 | 7.09 |
| 2026-04-15 | 163,795 | +2.4% | 42,612 | 3.84 |
| 2026-03-31 | 160,037 | -1.1% | 12,620 | 12.68 |
| 2026-03-13 | 161,820 | -1.0% | 14,809 | 10.93 |
| 2026-02-27 | 163,427 | +5.0% | 10,125 | 16.14 |
| 2026-02-13 | 155,651 | +1.0% | 18,381 | 8.47 |
| 2026-01-30 | 154,126 | +1.6% | 13,789 | 11.18 |
| 2026-01-15 | 151,694 | +0.9% | 37,585 | 4.04 |
| 2025-12-31 | 150,296 | +7.3% | 50,141 | 3.00 |
| 2025-12-15 | 140,052 | -4.1% | 18,566 | 7.54 |
| 2025-11-28 | 146,065 | -5.0% | 13,011 | 11.23 |
| 2025-11-14 | 153,753 | +4.0% | 19,575 | 7.85 |
| 2025-10-31 | 147,778 | +21.2% | 219,519 | 1.00 |
| 2025-10-15 | 121,910 | -1.1% | 3,593 | 33.93 |
| 2025-09-30 | 123,320 | -0.9% | 6,118 | 20.16 |
| 2025-09-15 | 124,392 | +1.7% | 13,518 | 9.20 |
| 2025-08-29 | 122,353 | -0.7% | 6,250 | 19.58 |
| 2025-08-15 | 123,247 | +6.9% | 12,431 | 9.91 |
| 2025-07-31 | 115,259 | -18.9% | 24,944 | 4.62 |
| 2025-07-15 | 142,046 | -15.7% | 29,238 | 4.86 |
| 2025-06-30 | 168,518 | +13.6% | 27,599 | 6.11 |
| 2025-06-13 | 148,362 | +9.8% | 28,440 | 5.22 |
| 2025-05-30 | 135,060 | +1.2% | 3,982 | 33.92 |
| 2025-05-15 | 133,405 | +0.0% | 2,620 | 50.92 |
| 2025-04-30 | 133,407 | -5.8% | 3,892 | 34.28 |
| 2025-04-15 | 141,647 | -0.1% | 10,535 | 13.45 |
| 2025-03-31 | 141,776 | +3.7% | 7,619 | 18.61 |
| 2025-03-14 | 136,722 | -0.7% | 5,665 | 24.13 |
| 2025-02-28 | 137,732 | -0.9% | 4,743 | 29.04 |
| 2025-02-14 | 139,012 | -9.8% | 5,025 | 27.66 |
| 2025-01-31 | 154,024 | -4.1% | 13,635 | 11.30 |
| 2025-01-15 | 160,682 | -12.5% | 16,708 | 9.62 |
| 2024-12-31 | 183,633 | +5.1% | 70,493 | 2.60 |
| 2024-12-13 | 174,696 | +10.3% | 10,361 | 16.86 |
| 2024-11-29 | 158,408 | -0.3% | 12,159 | 13.03 |
| 2024-11-15 | 158,829 | -0.2% | 6,779 | 23.43 |
| 2024-10-31 | 159,080 | -0.1% | 5,435 | 29.27 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of VHC volume is 37.1%, down 25.2 points over the last five sessions. Over the last 30 readings it ranged from 28.3% (30 October 2026) to 88.7% (14 October 2026). The latest reading is 17.5 points below the 30-session average of 54.6%, on 2K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 845 | 2K | 37.1% | 159 |
| 2026-10-30 | 6K | 21K | 28.3% | 326 |
| 2026-10-29 | 2K | 5K | 39.3% | 0 |
| 2026-10-28 | 282 | 590 | 47.8% | 0 |
| 2026-10-27 | 1K | 4K | 35.9% | 0 |
| 2026-10-26 | 2K | 3K | 62.4% | 0 |
| 2026-10-23 | 1K | 2K | 57.5% | 0 |
| 2026-10-22 | 2K | 6K | 40.3% | 0 |
| 2026-10-21 | 637 | 988 | 64.5% | 113 |
| 2026-10-20 | 5K | 14K | 40.3% | 0 |
| 2026-10-19 | 2K | 4K | 45.9% | 0 |
| 2026-10-16 | 2K | 4K | 37.7% | 0 |
| 2026-10-15 | 292 | 829 | 35.2% | 0 |
| 2026-10-14 | 602 | 679 | 88.7% | 0 |
| 2026-10-13 | 4K | 5K | 82.3% | 2,044 |
| 2026-10-12 | 540 | 698 | 77.4% | 22 |
| 2026-10-09 | 2K | 4K | 50.0% | 0 |
| 2026-10-08 | 1K | 2K | 82.8% | 0 |
| 2026-10-07 | 3K | 7K | 40.1% | 0 |
| 2026-10-06 | 6K | 8K | 73.0% | 0 |
| 2026-10-05 | 4K | 5K | 84.8% | 0 |
| 2026-10-02 | 4K | 6K | 62.9% | 0 |
| 2026-10-01 | 7K | 25K | 29.6% | 208 |
| 2026-09-30 | 2K | 5K | 31.4% | 0 |
| 2026-09-29 | 563 | 1K | 43.6% | 0 |
| 2026-09-28 | 2K | 4K | 66.4% | 665 |
| 2026-09-25 | 13K | 19K | 65.5% | 2,657 |
| 2026-09-24 | 1K | 4K | 36.7% | 0 |
| 2026-09-23 | 3K | 4K | 84.3% | 99 |
| 2026-09-22 | 5K | 8K | 66.2% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 25 September 2026, the fails-to-deliver balance in VHC is 2 shares, up 1 share over the last settlement date. Over the last 30 readings it ranged from 1 share (22 September 2026) to 2,437 shares (9 September 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-25 | 2 | $12.30 | $25 |
| 2026-09-22 | 1 | $12.95 | $13 |
| 2026-09-16 | 40 | $11.27 | $451 |
| 2026-09-09 | 2,437 | $11.80 | $29K |
| 2026-09-08 | 1,437 | $11.65 | $17K |
| 2026-09-01 | 186 | $11.80 | $2K |
| 2026-08-31 | 310 | $12.06 | $4K |
| 2026-08-28 | 658 | $12.54 | $8K |
| 2026-08-27 | 1,238 | $13.19 | $16K |
| 2026-08-12 | 52 | $14.67 | $763 |
| 2026-08-11 | 432 | $14.23 | $6K |
| 2026-08-10 | 523 | $14.88 | $8K |
| 2026-08-07 | 1,209 | $15.96 | $19K |
| 2026-08-05 | 181 | $13.56 | $2K |
| 2026-08-04 | 229 | $13.56 | $3K |
| 2026-07-24 | 2,196 | $12.45 | $27K |
| 2026-07-23 | 2,055 | $12.26 | $25K |
| 2026-07-22 | 1,536 | $12.05 | $19K |
| 2026-07-07 | 1,005 | $12.49 | $13K |
| 2026-06-26 | 78 | $11.68 | $911 |
| 2026-06-25 | 402 | $11.63 | $5K |
| 2026-06-24 | 237 | $12.19 | $3K |
| 2026-06-22 | 3 | $12.53 | $38 |
| 2026-06-11 | 108 | $12.79 | $1K |
| 2026-06-10 | 1,349 | $13.21 | $18K |
| 2026-05-29 | 490 | $15.43 | $8K |
| 2026-05-19 | 399 | $13.76 | $5K |
| 2026-05-12 | 233 | $13.55 | $3K |
| 2026-05-06 | 765 | $12.13 | $9K |
| 2026-04-21 | 310 | $17.26 | $5K |
Insider trades
SEC Form 4, newest first. JSONInsiders at VHC reported 11 open-market sells worth $489K in the last 90 days and no open-market buys. Latest filing: Angelo Michael F (Director) on 2026-09-30.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | Angelo Michael F | Director | Sell | 1K | $10.26 | $10K | 28K |
| 2026-09-14 | Larsen Kendall | President & CEO | Sell | 4K | $11.17 | $49K | 340K |
| 2026-09-11 | Larsen Kendall | President & CEO | Sell | 8K | $11.37 | $91K | 344K |
| 2026-09-10 | Larsen Kendall | President & CEO | Sell | 8K | $11.48 | $92K | 352K |
| 2026-09-02 | Larsen Kendall | President & CEO | Sell | 518 | $12.13 | $6K | 360K |
| 2026-09-02 | Larsen Kendall | President & CEO | Sell | 4K | $11.43 | $46K | 361K |
| 2026-09-01 | Larsen Kendall | President & CEO | Sell | 5K | $11.00 | $55K | 365K |
| 2026-09-01 | Feiner Gary | Director | Sell | 4K | $11.00 | $41K | 17K |
| 2026-08-31 | Larsen Kendall | President & CEO | Sell | 5K | $11.17 | $56K | 370K |
| 2026-08-31 | Feiner Gary | Director | Sell | 1 | $12.03 | $12 | 21K |
| 2026-08-31 | Feiner Gary | Director | Sell | 4K | $11.17 | $42K | 21K |
| 2026-07-06 | Allanson Katherine | Chief Financial Officer | Tax withholding | 100 | $11.95 | $1K | 31K |
| 2026-06-11 | Feiner Gary | Director | Grant | 8K | $0.00 | $0 | 24K |
| 2026-06-11 | Chow Heidy Kingwan | Director | Grant | 8K | $0.00 | $0 | 38K |
| 2026-06-11 | O'BRIEN THOMAS M | Director | Grant | 8K | $0.00 | $0 | 35K |
| 2026-06-11 | Angelo Michael F | Director | Grant | 8K | $0.00 | $0 | 29K |
| 2025-12-03 | O'BRIEN THOMAS M | Director | Exercise or conversion | 625 | $10.10 | $6K | 28K |
| 2025-11-26 | Feiner Gary | Director | Sell | 2K | $22.70 | $43K | 17K |
| 2025-11-24 | Angelo Michael F | Director | Sell | 625 | $20.89 | $13K | 22K |
| 2025-07-07 | Short Robert D III | Chief Scientist | Tax withholding | 50 | $12.34 | $617 | 32K |
| 2025-07-07 | Allanson Katherine | Chief Financial Officer | Tax withholding | 102 | $12.34 | $1K | 31K |
| 2025-06-23 | Short Robert D III | Chief Scientist | Tax withholding | 8 | $8.06 | $64 | 32K |
| 2025-06-12 | O'BRIEN THOMAS M | Director | Grant | 8K | $0.00 | $0 | 27K |
| 2025-06-12 | Feiner Gary | Director | Grant | 8K | $0.00 | $0 | 19K |
| 2025-06-12 | Chow Heidy Kingwan | Director | Grant | 8K | $0.00 | $0 | 30K |
| 2025-06-12 | Angelo Michael F | Director | Grant | 8K | $0.00 | $0 | 22K |
| 2024-11-14 | Larsen Kendall | President & CEO | Grant | 50K | $0.00 | $0 | 375K |
| 2024-11-12 | Larsen Kendall | President & CEO | Grant | 30K | $0.00 | $0 | 75K |
| 2024-11-12 | Short Robert D III | Chief Scientist | Grant | 30K | $0.00 | $0 | 32K |
| 2024-11-12 | Allanson Katherine | Chief Financial Officer | Grant | 30K | $0.00 | $0 | 31K |
| 2024-06-16 | Chow Heidy Kingwan | Director | Grant | 23K | $0.00 | $0 | 23K |
| 2024-06-16 | O'BRIEN THOMAS M | Director | Grant | 8K | $0.00 | $0 | 20K |
| 2024-06-16 | Angelo Michael F | Director | Grant | 8K | $0.00 | $0 | 15K |
| 2024-06-16 | Feiner Gary | Director | Grant | 8K | $0.00 | $0 | 11K |
| 2024-05-24 | Larsen Kendall | President & CEO | Buy | 1K | $4.14 | $4K | 45K |
| 2024-05-23 | Larsen Kendall | President & CEO | Buy | 2K | $4.65 | $9K | 44K |
| 2024-05-22 | Larsen Kendall | President & CEO | Buy | 2 | $4.65 | $9 | 42K |
| 2024-05-21 | Larsen Kendall | President & CEO | Buy | 258 | $4.65 | $1K | 42K |
| 2024-01-31 | MCBRIDE DARL C | Chief Operating Officer | Tax withholding | 2K | $6.49 | $14K | 6K |
| 2024-01-01 | MCBRIDE DARL C | Chief Operating Officer | Grant | 6K | $0.00 | $0 | 8K |
| 2023-07-05 | Allanson Katherine | Chief Financial Officer | Grant | 28K | $0.00 | $0 | 28K |
| 2023-07-05 | Larsen Kendall | President & CEO | Grant | 28K | $0.00 | $0 | 830K |
| 2023-07-05 | Larsen Kendall | President & CEO | Grant | 56K | $0.00 | $0 | 6.5M |
| 2023-07-05 | Short Robert D III | Chief Scientist | Grant | 28K | $0.00 | $0 | 61K |
| 2023-06-15 | Angelo Michael F | Director | Grant | 8K | $0.00 | $0 | 147K |
| 2023-06-15 | Feiner Gary | Director | Grant | 8K | $0.00 | $0 | 75K |
| 2023-06-15 | O'BRIEN THOMAS M | Director | Grant | 8K | $0.00 | $0 | 247K |
| 2023-06-05 | Larsen Kendall | President & CEO | Buy | 28K | $0.38 | $11K | 802K |
| 2023-05-26 | Larsen Kendall | President & CEO | Buy | 2K | $0.43 | $860 | 774K |
| 2023-05-25 | Angelo Michael F | Director | Buy | 23K | $0.43 | $10K | 138K |
| 2023-05-18 | O'BRIEN THOMAS M | Director | Buy | 50K | $0.42 | $21K | 238K |
| 2023-05-18 | Larsen Kendall | President & CEO | Buy | 104K | $0.45 | $47K | 772K |
| 2022-06-07 | Larsen Kendall | President & CEO | Grant | 13K | $0.00 | $0 | 668K |
| 2022-06-07 | Larsen Kendall | President & CEO | Grant | 27K | $0.00 | $0 | 6.4M |
| 2022-06-07 | Short Robert D III | Chief Scientist | Grant | 13K | $0.00 | $0 | 47K |
| 2022-06-03 | Angelo Michael F | Director | Grant | 8K | $0.00 | $0 | 115K |
| 2022-06-03 | Feiner Gary | Director | Grant | 8K | $0.00 | $0 | 67K |
| 2022-06-03 | O'BRIEN THOMAS M | Director | Grant | 8K | $0.00 | $0 | 188K |
| 2022-05-25 | Larsen Kendall | President & CEO | Buy | 2K | $1.13 | $2K | 655K |
| 2022-05-24 | Larsen Kendall | President & CEO | Buy | 14K | $1.20 | $17K | 653K |
| 2022-05-23 | Larsen Kendall | President & CEO | Buy | 2K | $1.20 | $3K | 639K |
| 2022-05-20 | Larsen Kendall | President & CEO | Buy | 41K | $1.20 | $49K | 637K |
| 2021-11-29 | Larsen Kendall | President & CEO | Buy | 5K | $2.67 | $13K | 596K |
| 2021-11-24 | Larsen Kendall | President & CEO | Buy | 20K | $2.92 | $58K | 591K |
| 2021-11-23 | Larsen Kendall | President & CEO | Buy | 8K | $2.82 | $22K | 571K |
| 2021-06-14 | Larsen Kendall | President & CEO | Grant | 13K | $0.00 | $0 | 563K |
| 2021-06-14 | Larsen Kendall | President & CEO | Grant | 27K | $0.00 | $0 | 6.4M |
| 2021-06-14 | Nance Richard H | Chief Financial Officer | Grant | 7K | $0.00 | $0 | 41K |
| 2021-06-14 | Short Robert D III | CTO and Chief Scientist | Grant | 13K | $0.00 | $0 | 134K |
| 2021-06-03 | Short Robert D III | Chief Scientist | Tax withholding | 883 | $4.81 | $4K | 33K |
| 2021-06-03 | Angelo Michael F | Director | Grant | 8K | $0.00 | $0 | 107K |
| 2021-06-03 | Feiner Gary | Director | Grant | 8K | $0.00 | $0 | 58K |
| 2021-06-03 | O'BRIEN THOMAS M | Director | Grant | 8K | $0.00 | $0 | 180K |
| 2021-06-02 | Short Robert D III | Chief Scientist | Tax withholding | 884 | $4.81 | $4K | 34K |
| 2021-06-01 | Short Robert D III | Chief Scientist | Tax withholding | 2K | $4.81 | $8K | 35K |
| 2020-06-03 | Larsen Kendall | President & CEO | Grant | 27K | $0.00 | $0 | 6.4M |
| 2020-06-03 | Larsen Kendall | President & CEO | Grant | 13K | $0.00 | $0 | 550K |
| 2020-06-03 | Nance Richard H | Chief Financial Officer | Grant | 7K | $0.00 | $0 | 34K |
| 2020-06-03 | Short Robert D III | CTO and Chief Scientist | Grant | 13K | $0.00 | $0 | 121K |
| 2020-06-02 | Nance Richard H | Chief Financial Officer | Tax withholding | 444 | $6.63 | $3K | 32K |
| 2020-06-02 | Short Robert D III | CTO and Chief Scientist | Tax withholding | 1K | $6.63 | $9K | 115K |
| 2020-06-01 | Nance Richard H | Chief Financial Officer | Tax withholding | 1K | $6.72 | $10K | 32K |
| 2020-06-01 | Short Robert D III | CTO and Chief Scientist | Tax withholding | 3K | $6.72 | $19K | 117K |
| 2020-05-29 | Angelo Michael F | Director | Grant | 8K | $0.00 | $0 | 99K |
| 2020-05-29 | Feiner Gary | Director | Grant | 8K | $0.00 | $0 | 50K |
| 2020-05-29 | O'BRIEN THOMAS M | Director | Grant | 8K | $0.00 | $0 | 172K |
| 2020-05-26 | Nance Richard H | Chief Financial Officer | Sell | 3K | $7.38 | $24K | 27K |
| 2020-05-26 | Nance Richard H | Chief Financial Officer | Buy | 292 | $6.85 | $2K | 30K |
| 2020-05-26 | Nance Richard H | Chief Financial Officer | Tax withholding | 296 | $7.30 | $2K | 34K |
| 2020-05-26 | Short Robert D III | CTO and Chief Scientist | Tax withholding | 1K | $7.30 | $10K | 120K |
| 2020-05-21 | Angelo Michael F | Director | Exercise or conversion | 10K | $5.58 | $56K | 100K |
| 2020-05-21 | Angelo Michael F | Director | Sell | 10K | $6.58 | $66K | 90K |
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. JSON4 Form 144 notices on file for VHC worth $632K at the prices reported; 3 in the last 90 days worth $590K. Latest: Angelo Michael F filed on 2026-09-29 to sell 1,000 shares ($10K) from 2026-09-30.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-09-29 | Angelo Michael FDIRECTOR | 1K | $10K | 0.024% | 2026-09-30 | APEX CLEARING |
| 2026-08-27 | Larsen KendallOFFICER | 35K | $477K | 0.830% | 2026-08-31 | APEX CLEARING |
| 2026-08-27 | Gary FeinerDIRECTOR | 8K | $102K | 0.178% | 2026-08-31 | APEX CLEARING |
| 2025-11-26 | GARY W FEINERDirector | 2K | $43K | 0.044% | 2025-11-26 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON1 holder reports 5% or more of VHC in its latest filing, on Schedule 13D (active intent). The holder is Larsen Kendall at 12.1% of the class (522,047 shares), filed 2025-11-26 for an event on 2025-11-24.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2025-11-26 | 13D/Ano. 7 | Larsen Kendallindividual, parent holding company | 522K | 12.1% | 2025-11-24 |
13F holders
Tracked managers holding VHC at their latest 13F. JSON1 of the 30 tracked managers held VHC at their latest 13F, $267K in total at quarter-end prices. Citadel Advisors is the largest at $267K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 0 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Citadel Advisors | 2026-06-30 | 21K | $267K | 0.00% | new |
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
VirnetX Holding 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 VirnetX Holding (VHC), SEC CIK 1082324, listed on Nasdaq, classified by the SEC as patent owners & lessors. 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 2026-09-25.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 2026-09-29.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 2025-11-26.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 2026-09-30.JSON and CSV
- Company record
- EDGAR filing index for CIK 1082324Ticker, 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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- SWKStanley Black & Decker
- SWKSSkyworks Solutions
- SXTCChina SXT Pharmaceuticals
- SYFSynchrony Financial
- SYKStryker
- SYNASynaptics
- SYRESpyre Therapeutics
Datasets
Frequently Asked Questions
How much of VHC is sold short?
What is VHC's daily short volume?
Does VHC have fails to deliver?
Are VHC insiders buying or selling?
Have VHC insiders filed to sell?
Who owns 5% or more of VHC?
Which tracked 13F managers own VHC?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.