Penumbra Inc (PEN)
Every FINRA and SEC series the site collects for Penumbra Inc: 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 surgical & medical instruments & apparatus.
1.7M
Short interest
settlement 2026-08-31
6.0
Days to cover
-4.8% vs prior
84.8%
Short share of volume
2026-09-17
1,261
Fails to deliver
settlement 2026-08-28
Wed 4 Nov
Next earnings
estimated; last year 2025-11-05
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-09-17.
Short interest
FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSONAs of 31 August 2026, short interest in PEN is 1,731,493 shares, down 104,553 shares over the last month. Over the last 48 readings it ranged from 1,224,870 shares (14 March 2025) to 2,654,223 shares (15 October 2024). At the reported average volume of 288K shares a day that is 6.0 days to cover, elevated.
Embed this chartkeeps the attribution line it carries
<iframe src="https://xoomar.com/embed/stocks/pen" 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 | 1,731,493 | -4.8% | 287,615 | 6.02 |
| 2026-08-14 | 1,818,794 | -0.9% | 260,263 | 6.99 |
| 2026-07-31 | 1,836,046 | -13.6% | 438,245 | 4.19 |
| 2026-07-15 | 2,123,757 | +4.2% | 337,187 | 6.30 |
| 2026-06-30 | 2,037,620 | +2.5% | 399,599 | 5.10 |
| 2026-06-15 | 1,986,919 | +3.7% | 431,134 | 4.61 |
| 2026-05-29 | 1,916,131 | -0.0% | 460,934 | 4.16 |
| 2026-05-15 | 1,916,276 | +1.0% | 411,914 | 4.65 |
| 2026-04-30 | 1,896,966 | -5.5% | 578,714 | 3.28 |
| 2026-04-15 | 2,007,168 | -17.7% | 473,304 | 4.24 |
| 2026-03-31 | 2,437,639 | +18.3% | 655,384 | 3.72 |
| 2026-03-13 | 2,061,336 | +10.4% | 662,106 | 3.11 |
| 2026-02-27 | 1,866,429 | +0.2% | 622,723 | 3.00 |
| 2026-02-13 | 1,863,136 | +16.3% | 973,747 | 1.91 |
| 2026-01-30 | 1,601,731 | -7.0% | 1,765,973 | 1.00 |
| 2026-01-15 | 1,722,051 | +0.7% | 1,609,684 | 1.07 |
| 2025-12-31 | 1,709,674 | +6.3% | 395,786 | 4.32 |
| 2025-12-15 | 1,607,603 | +6.1% | 509,315 | 3.16 |
| 2025-11-28 | 1,514,769 | -10.2% | 495,947 | 3.05 |
| 2025-11-14 | 1,687,371 | -7.3% | 572,612 | 2.95 |
| 2025-10-31 | 1,819,291 | +5.0% | 394,744 | 4.61 |
| 2025-10-15 | 1,733,518 | +7.5% | 325,549 | 5.32 |
| 2025-09-30 | 1,612,966 | -18.5% | 418,495 | 3.85 |
| 2025-09-15 | 1,978,313 | +10.6% | 481,756 | 4.11 |
Daily short volume
FINRA Reg SHO, last 60 sessions. JSONAs of 17 September 2026, the short share of PEN volume is 84.8%, up 10.7 points over the last five sessions. Over the last 52 readings it ranged from 26.1% (22 July 2026) to 84.8% (17 September 2026). The latest reading sits at the top of that range. The latest reading is 29.5 points above the 30-session average of 55.3%, on 192K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-09-17 | 163K | 192K | 84.8% | 0 |
| 2026-09-16 | 76K | 287K | 26.5% | 137 |
| 2026-09-15 | 120K | 304K | 39.5% | 0 |
| 2026-09-14 | 44K | 69K | 64.0% | 7 |
| 2026-09-11 | 39K | 63K | 62.7% | 0 |
| 2026-09-10 | 43K | 58K | 74.1% | 0 |
| 2026-09-09 | 59K | 113K | 52.2% | 0 |
| 2026-09-08 | 100K | 155K | 64.7% | 67 |
| 2026-09-04 | 28K | 42K | 68.1% | 0 |
| 2026-09-03 | 39K | 49K | 79.8% | 0 |
| 2026-09-02 | 27K | 44K | 62.2% | 0 |
| 2026-09-01 | 31K | 52K | 59.1% | 0 |
| 2026-08-31 | 51K | 75K | 67.0% | 24 |
| 2026-08-28 | 30K | 45K | 67.0% | 1 |
| 2026-08-27 | 89K | 197K | 45.1% | 6 |
| 2026-08-26 | 119K | 193K | 61.8% | 0 |
| 2026-08-25 | 52K | 85K | 61.2% | 0 |
| 2026-08-24 | 30K | 59K | 51.4% | 61 |
| 2026-08-21 | 31K | 63K | 49.5% | 79 |
| 2026-08-20 | 36K | 58K | 61.9% | 0 |
| 2026-08-19 | 57K | 152K | 37.6% | 33 |
| 2026-08-18 | 18K | 40K | 45.4% | 0 |
| 2026-08-17 | 31K | 58K | 53.4% | 79 |
| 2026-08-14 | 17K | 53K | 32.7% | 255 |
| 2026-08-13 | 30K | 52K | 58.2% | 0 |
| 2026-08-12 | 37K | 96K | 38.4% | 0 |
| 2026-08-11 | 34K | 60K | 56.2% | 0 |
| 2026-08-10 | 26K | 54K | 47.6% | 50 |
| 2026-08-07 | 28K | 72K | 39.4% | 0 |
| 2026-08-06 | 39K | 82K | 47.5% | 0 |
Fails to deliver
SEC, by settlement date. JSONAs of 28 August 2026, the fails-to-deliver balance in PEN is 1,261 shares, up 1,244 shares over the last settlement date. Over the last 52 readings it ranged from 4 shares (19 August 2026) to 49,607 shares (11 June 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-08-28 | 1,261 | $321.00 | $405K |
| 2026-08-24 | 17 | $325.18 | $6K |
| 2026-08-21 | 1,378 | $323.76 | $446K |
| 2026-08-20 | 17 | $326.84 | $6K |
| 2026-08-19 | 4 | $324.75 | $1K |
| 2026-08-18 | 20 | $327.17 | $7K |
| 2026-08-17 | 40 | $327.02 | $13K |
| 2026-08-13 | 9 | $326.58 | $3K |
| 2026-08-12 | 16,343 | $326.28 | $5.3M |
| 2026-08-11 | 1,602 | $325.98 | $522K |
| 2026-08-10 | 176 | $324.66 | $57K |
| 2026-08-06 | 9 | $323.21 | $3K |
| 2026-08-05 | 307 | $324.22 | $100K |
| 2026-08-03 | 478 | $321.19 | $154K |
| 2026-07-31 | 485 | $319.83 | $155K |
| 2026-07-29 | 5,426 | $319.99 | $1.7M |
| 2026-07-23 | 227 | $316.50 | $72K |
| 2026-07-15 | 43,220 | $316.26 | $13.7M |
| 2026-06-29 | 835 | $316.63 | $264K |
| 2026-06-26 | 154 | $317.40 | $49K |
| 2026-06-25 | 2,074 | $316.36 | $656K |
| 2026-06-22 | 5 | $317.20 | $2K |
| 2026-06-15 | 342 | $318.71 | $109K |
| 2026-06-12 | 1,238 | $318.32 | $394K |
| 2026-06-11 | 49,607 | $319.34 | $15.8M |
| 2026-06-09 | 1,773 | $320.07 | $567K |
| 2026-06-05 | 36 | $320.63 | $12K |
| 2026-06-02 | 4,213 | $318.95 | $1.3M |
| 2026-06-01 | 467 | $318.30 | $149K |
| 2026-05-29 | 1,355 | $318.95 | $432K |
Insider trades
SEC Form 4, newest first, 50 of 100 shown. JSONNo open-market insider trades were reported for PEN in the last 90 days. The most recent filings are listed below; grants and option exercises carry a weaker signal than voluntary trades. Latest filing: Narayan Shruthi (President) on 2026-09-15.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-15 | Narayan Shruthi | President | Tax withholding | 1K | $318.43 | $392K | 33K |
| 2026-08-17 | Narayan Shruthi | President | Grant | 3K | $0.00 | $0 | 34K |
| 2026-05-19 | Elsesser Adam | CEO | Gift | 77K | $0.00 | $0 | 683K |
| 2026-04-02 | Grewal Harpreet | n/a | Sell | 100 | $328.22 | $33K | 9K |
| 2026-03-15 | Shiu Lambert | Chief Accounting Officer | Tax withholding | 150 | $336.18 | $50K | 39K |
| 2026-03-15 | Yuen Maggie | Chief Financial Officer | Tax withholding | 186 | $336.18 | $63K | 18K |
| 2026-03-15 | Roberts Johanna | EVP, Gen. Counsel & Secretary | Tax withholding | 186 | $336.18 | $63K | 67K |
| 2026-03-15 | Narayan Shruthi | President | Tax withholding | 117 | $336.18 | $39K | 31K |
| 2026-03-02 | Yuen Maggie | Chief Financial Officer | Sell | 2K | $342.30 | $832K | 18K |
| 2026-02-17 | Shiu Lambert | Chief Accounting Officer | Grant | 2K | $0.00 | $0 | 39K |
| 2026-02-17 | Yuen Maggie | Chief Financial Officer | Grant | 3K | $0.00 | $0 | 21K |
| 2026-02-17 | Roberts Johanna | EVP, Gen. Counsel & Secretary | Grant | 3K | $0.00 | $0 | 67K |
| 2026-02-17 | Narayan Shruthi | President | Grant | 3K | $0.00 | $0 | 31K |
| 2026-02-15 | Shiu Lambert | Chief Accounting Officer | Tax withholding | 412 | $339.30 | $140K | 37K |
| 2026-02-15 | Yuen Maggie | Chief Financial Officer | Tax withholding | 481 | $339.30 | $163K | 18K |
| 2026-02-15 | Roberts Johanna | EVP, Gen. Counsel & Secretary | Tax withholding | 482 | $339.30 | $164K | 65K |
| 2026-02-15 | Narayan Shruthi | President | Tax withholding | 705 | $339.30 | $239K | 28K |
| 2026-02-13 | Shiu Lambert | Chief Accounting Officer | Grant | 2K | $0.00 | $0 | 38K |
| 2026-02-13 | Yuen Maggie | Chief Financial Officer | Grant | 3K | $0.00 | $0 | 19K |
| 2026-02-13 | Sarna Surbhi | n/a | Grant | 589 | $0.00 | $0 | 4K |
| 2026-02-13 | Roberts Johanna | EVP, Gen. Counsel & Secretary | Grant | 3K | $0.00 | $0 | 65K |
| 2026-02-13 | Wilder Thomas | n/a | Grant | 589 | $0.00 | $0 | 589 |
| 2026-02-13 | O'Rourke Bridget | n/a | Grant | 589 | $0.00 | $0 | 6K |
| 2026-02-13 | Narayan Shruthi | President | Grant | 3K | $0.00 | $0 | 29K |
| 2026-02-13 | Leeds Janet | n/a | Grant | 589 | $0.00 | $0 | 7K |
| 2026-02-13 | Grewal Harpreet | n/a | Grant | 589 | $0.00 | $0 | 9K |
| 2026-02-13 | Bose Arani | n/a | Grant | 589 | $0.00 | $0 | 1K |
| 2026-01-15 | Narayan Shruthi | President | Tax withholding | 286 | $350.49 | $100K | 26K |
| 2026-01-06 | Grewal Harpreet | n/a | Sell | 186 | $312.64 | $58K | 8K |
| 2026-01-02 | Wilder Thomas | n/a | Sell | 186 | $310.72 | $58K | 0 |
| 2025-12-15 | Shiu Lambert | Chief Accounting Officer | Tax withholding | 300 | $309.15 | $93K | 35K |
| 2025-12-15 | Yuen Maggie | Chief Financial Officer | Tax withholding | 565 | $309.15 | $175K | 16K |
| 2025-12-15 | Roberts Johanna | EVP, Gen. Counsel & Secretary | Tax withholding | 1K | $309.15 | $349K | 63K |
| 2025-12-11 | Bose Arani | n/a | Sell | 2K | $312.20 | $592K | 258K |
| 2025-12-11 | Bose Arani | n/a | Sell | 4K | $311.47 | $1.1M | 260K |
| 2025-12-11 | Bose Arani | n/a | Sell | 2K | $310.50 | $646K | 264K |
| 2025-12-11 | Bose Arani | n/a | Sell | 4 | $308.00 | $1K | 266K |
| 2025-12-11 | Bose Arani | n/a | Sell | 520 | $307.10 | $160K | 266K |
| 2025-12-11 | Bose Arani | n/a | Sell | 5K | $306.60 | $1.5M | 266K |
| 2025-12-11 | Bose Arani | n/a | Sell | 2K | $305.19 | $620K | 271K |
| 2025-12-05 | Roberts Johanna | EVP, Gen. Counsel & Secretary | Sell | 300 | $300.13 | $90K | 64K |
| 2025-12-02 | Grewal Harpreet | n/a | Sell | 100 | $292.98 | $29K | 8K |
| 2025-12-01 | Roberts Johanna | EVP, Gen. Counsel & Secretary | Sell | 10 | $298.02 | $3K | 64K |
| 2025-12-01 | Roberts Johanna | EVP, Gen. Counsel & Secretary | Sell | 78 | $297.50 | $23K | 64K |
| 2025-12-01 | Roberts Johanna | EVP, Gen. Counsel & Secretary | Sell | 80 | $296.27 | $24K | 64K |
| 2025-12-01 | Roberts Johanna | EVP, Gen. Counsel & Secretary | Sell | 144 | $295.38 | $43K | 64K |
| 2025-12-01 | Roberts Johanna | EVP, Gen. Counsel & Secretary | Sell | 155 | $294.52 | $46K | 64K |
| 2025-12-01 | Roberts Johanna | EVP, Gen. Counsel & Secretary | Sell | 39 | $293.27 | $11K | 65K |
| 2025-12-01 | Roberts Johanna | EVP, Gen. Counsel & Secretary | Sell | 94 | $292.09 | $27K | 65K |
| 2025-11-26 | Bose Arani | n/a | Gift | 2K | $0.00 | $0 | 273K |
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. JSON11 Form 144 notices on file for PEN worth $10.6M at the prices reported; 0 in the last 90 days worth $0. Latest: Grewal Harpreet filed on 2026-04-02 to sell 100 shares ($33K) from 2026-04-02.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-04-02 | Grewal HarpreetDirector | 100 | $33K | 0.000% | 2026-04-02 | Fidelity Brokerage Services LLC |
| 2026-03-02 | MAGGIE YUENOfficer | 2K | $832K | 0.006% | 2026-03-02 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-01-06 | Grewal HarpreetDirector | 186 | $58K | 0.000% | 2026-01-06 | Fidelity Brokerage Services LLC |
| 2026-01-02 | THOMAS WILDERDirector | 186 | $58K | 0.000% | 2026-01-02 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-02 | Grewal HarpreetDirector | 100 | $29K | 0.000% | 2025-12-02 | Fidelity Brokerage Services LLC |
| 2025-11-25 | Johanna RobertsOfficer | 2K | $626K | 0.005% | 2025-11-25 | J.P. Morgan Securities LLC |
| 2025-11-21 | Arani BoseAffiliate | 30K | $8.4M | 0.077% | 2025-11-21 | J.P. Morgan Securities LLC |
| 2025-11-04 | Grewal HarpreetDirector | 186 | $42K | 0.000% | 2025-11-04 | Fidelity Brokerage Services LLC |
| 2025-10-02 | Grewal HarpreetDirector | 186 | $46K | 0.000% | 2025-10-02 | Fidelity Brokerage Services LLC |
| 2025-10-01 | Johanna RobertsOfficer | 2K | $456K | 0.005% | 2025-10-01 | J.P. Morgan Securities LLC |
| 2025-10-01 | THOMAS WILDERDirector | 186 | $47K | 0.000% | 2025-10-01 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person, newest filing first. JSON5 holders above 5% have filed on PEN, all on Schedule 13G (passive). The largest reported stake is Barclays PLC at 6.0% of the class (2,342,118 shares), filed 2026-08-13 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-13 | 13G | Barclays PLCparent holding company | 2.3M | 6.0% | 2026-06-30 |
| 2026-04-30 | 13G | Vanguard Capital Managementinvestment adviser | 2.0M | 5.1% | 2026-03-31 |
| 2026-03-27 | 13G/Ano. 8 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2026-02-06 | 13G/Ano. 11 | FMR LLCparent holding company | 1.8M | 4.7% | 2026-01-30 |
| 2026-02-06 | 13G/Ano. 11 | Abigail P. Johnsonindividual | 1.8M | 4.7% | 2026-01-30 |
| 2026-02-05 | 13G/Ano. 10 | Abigail P. Johnsonindividual | 5.1M | 13.0% | 2025-12-31 |
| 2026-02-05 | 13G/Ano. 10 | FMR LLCparent holding company | 5.1M | 13.0% | 2025-12-31 |
13F holders
Tracked managers holding PEN at their latest 13F. JSON8 of the 30 tracked managers held PEN at their latest 13F, $692.8M in total at quarter-end prices. Millennium Management is the largest at $299.2M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 5 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Millennium Management | 2026-06-30 | 948K | $299.2M | 0.11% | -199K |
| Citadel Advisors | 2026-06-30 | 502K | $158.4M | 0.02% | +249K |
| Two Sigma Investments | 2026-06-30 | 428K | $135.2M | 0.10% | +370K |
| D. E. Shaw & Co. | 2026-06-30 | 197K | $62.3M | 0.03% | -5K |
| Renaissance Technologies | 2026-06-30 | 80K | $25.1M | 0.03% | +77K |
| AQR Capital Management | 2026-06-30 | 32K | $10.0M | 0.00% | -46K |
| Point72 Asset Management | 2026-06-30 | 7K | $2.1M | 0.00% | -74K |
| Bridgewater Associates | 2026-06-30 | 2K | $499K | 0.00% | -8K |
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 Q2 2026 (quarter ended 2026-06-30) Penumbra Inc reported revenue of $390.0M, up 14.9% from the same quarter a year earlier, and net income of $34.8M (0.88 diluted EPS). In FY 2025 it generated $238.7M of operating cash flow.
- Cash
- $205.3M
- Equity
- $1.53B
- Total assets
- $1.97B
- Shares outstanding
- 39,389,422
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q2 2026 | 2026-06-30 | $390.0M | $34.8M | 8.9% | 0.88 |
| Q1 2026 | 2026-03-31 | $374.8M | $32.6M | 8.7% | 0.82 |
| Q4 2025derived | 2025-12-31 | $385.4M | n/a | n/a | n/a |
| Q3 2025 | 2025-09-30 | $354.7M | $45.9M | 12.9% | 1.17 |
| Q2 2025 | 2025-06-30 | $339.5M | $45.3M | 13.3% | 1.15 |
| Q1 2025 | 2025-03-31 | $324.1M | $39.2M | 12.1% | 1.00 |
| Q4 2024derived | 2024-12-31 | $315.5M | n/a | n/a | n/a |
| Q3 2024 | 2024-09-30 | $301.0M | $29.5M | 9.8% | 0.75 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-31 | $1.40B | n/a | $238.7M | $63.7M | $0 | n/a |
| FY 2024 | 2024-12-31 | $1.19B | n/a | $168.5M | $21.2M | $100.4M | n/a |
| FY 2023 | 2023-12-31 | $1.06B | n/a | $97.3M | $15.2M | $0 | n/a |
| FY 2022 | 2022-12-31 | $847.1M | n/a | -$55.7M | $19.3M | $0 | n/a |
| FY 2021 | 2021-12-31 | $747.6M | n/a | $9.5M | $21.2M | n/a | 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 2026-07-14 from the cover page.
What this page is
Penumbra Inc 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 Penumbra Inc (PEN), SEC CIK 1321732, listed on NYSE, classified by the SEC as surgical & medical instruments & apparatus. 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 2026-09-17.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-28.JSON and CSV
- Planned sales
- SEC EDGAR Form 144EDGAR read every 30 minutes; a notice is filed on or before the sell order. Latest 2026-04-02.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 2026-08-13.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
- Earnings dates
- SEC EDGAR 8-K Item 2.02 (full-text search)EDGAR full-text search read twice a day; the estimate is last year's date plus 52 weeks. Latest 2026-07-30.JSON and CSV
- Insider trades
- SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-09-15.JSON and CSV
- Company record
- EDGAR filing index for CIK 1321732Ticker, 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, 18 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.
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- LUNGPulmonx Corp
- MMSIMERIT MEDICAL SYSTEMS INC
- ANGOANGIODYNAMICS INC
- OFIXOrthofix Medical Inc.
Datasets
Frequently Asked Questions
How much of PEN is sold short?
What is PEN's daily short volume?
Does PEN have fails to deliver?
Are PEN insiders buying or selling?
Have PEN insiders filed to sell?
Who owns more than 5% of PEN?
What did PEN report last quarter?
Which funds hold PEN?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.