Koss (KOSS)
Koss on one page: short interest, daily short volume, fails to deliver, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as household audio & video equipment.
112K
Short interest
settlement 2026-09-30
1.1
Days to cover
-6.9 days vs prior
0.3%
Short share of volume
2026-10-23
12,202
Fails to deliver
settlement 2026-09-24
Thu 29 Oct
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-10-23.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in KOSS is 111,610 shares, up 23,177 shares over the last month. Over the last 48 readings it ranged from 86,907 shares (15 July 2026) to 421,425 shares (15 October 2024). The latest reading sits at the bottom of that range. At the reported average volume of 99K shares a day that is 1.1 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/koss" 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 |
|---|---|---|---|---|
| 2026-09-30 | 111,610 | -9.2% | 99,465 | 1.12 |
| 2026-09-15 | 122,859 | +38.9% | 15,239 | 8.06 |
| 2026-08-31 | 88,433 | -11.2% | 17,263 | 5.12 |
| 2026-08-14 | 99,610 | -13.4% | 15,023 | 6.63 |
| 2026-07-31 | 115,064 | +32.4% | 16,236 | 7.09 |
| 2026-07-15 | 86,907 | -5.7% | 21,360 | 4.07 |
| 2026-06-30 | 92,109 | -0.6% | 20,892 | 4.41 |
| 2026-06-15 | 92,655 | -17.3% | 25,084 | 3.69 |
| 2026-05-29 | 111,984 | -2.3% | 21,481 | 5.21 |
| 2026-05-15 | 114,656 | +16.2% | 27,943 | 4.10 |
| 2026-04-30 | 98,678 | -4.8% | 40,593 | 2.43 |
| 2026-04-15 | 103,660 | +3.6% | 14,239 | 7.28 |
| 2026-03-31 | 100,028 | -1.9% | 23,996 | 4.17 |
| 2026-03-13 | 102,021 | -1.1% | 18,579 | 5.49 |
| 2026-02-27 | 103,184 | -5.9% | 21,419 | 4.82 |
| 2026-02-13 | 109,641 | -27.6% | 36,165 | 3.03 |
| 2026-01-30 | 151,489 | +6.3% | 39,114 | 3.87 |
| 2026-01-15 | 142,491 | +44.5% | 69,095 | 2.06 |
| 2025-12-31 | 98,633 | +9.3% | 43,692 | 2.26 |
| 2025-12-15 | 90,268 | -31.1% | 25,440 | 3.55 |
| 2025-11-28 | 130,957 | -2.4% | 23,708 | 5.52 |
| 2025-11-14 | 134,110 | -8.3% | 31,476 | 4.26 |
| 2025-10-31 | 146,247 | +7.9% | 54,910 | 2.66 |
| 2025-10-15 | 135,573 | -13.6% | 53,930 | 2.51 |
| 2025-09-30 | 156,938 | -4.4% | 28,944 | 5.42 |
| 2025-09-15 | 164,160 | -13.6% | 46,188 | 3.55 |
| 2025-08-29 | 189,899 | -5.0% | 108,299 | 1.75 |
| 2025-08-15 | 199,833 | -19.3% | 39,767 | 5.03 |
| 2025-07-31 | 247,655 | +22.2% | 620,046 | 1.00 |
| 2025-07-15 | 202,640 | -9.4% | 34,489 | 5.88 |
| 2025-06-30 | 223,591 | -2.7% | 104,071 | 2.15 |
| 2025-06-13 | 229,889 | -20.1% | 83,507 | 2.75 |
| 2025-05-30 | 287,900 | +21.7% | 184,047 | 1.56 |
| 2025-05-15 | 236,504 | -4.3% | 26,069 | 9.07 |
| 2025-04-30 | 247,005 | +2.6% | 26,288 | 9.40 |
| 2025-04-15 | 240,784 | +1.0% | 43,753 | 5.50 |
| 2025-03-31 | 238,330 | -12.4% | 48,459 | 4.92 |
| 2025-03-14 | 272,035 | +0.2% | 32,870 | 8.28 |
| 2025-02-28 | 271,418 | +4.3% | 48,319 | 5.62 |
| 2025-02-14 | 260,346 | +0.7% | 75,916 | 3.43 |
| 2025-01-31 | 258,675 | +10.7% | 69,913 | 3.70 |
| 2025-01-15 | 233,639 | -10.4% | 135,729 | 1.72 |
| 2024-12-31 | 260,727 | -16.2% | 168,562 | 1.55 |
| 2024-12-13 | 311,217 | -12.1% | 208,634 | 1.49 |
| 2024-11-29 | 354,104 | +7.0% | 171,889 | 2.06 |
| 2024-11-15 | 330,788 | -19.2% | 182,400 | 1.81 |
| 2024-10-31 | 409,272 | -2.9% | 202,183 | 2.02 |
| 2024-10-15 | 421,425 | -13.8% | 150,134 | 2.81 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of KOSS volume is 0.3%, down 9.4 points over the last five sessions. Over the last 30 readings it ranged from 0.3% (23 October 2026) to 76.2% (9 October 2026). The latest reading sits at the bottom of that range. The latest reading is 40.8 points below the 30-session average of 41.1%, on 14K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 43 | 14K | 0.3% | 0 |
| 2026-10-22 | 3K | 12K | 23.7% | 0 |
| 2026-10-21 | 4K | 15K | 23.9% | 300 |
| 2026-10-20 | 4K | 11K | 41.4% | 0 |
| 2026-10-19 | 6K | 15K | 39.7% | 0 |
| 2026-10-16 | 2K | 17K | 9.7% | 0 |
| 2026-10-15 | 6K | 15K | 39.3% | 0 |
| 2026-10-14 | 4K | 10K | 42.2% | 0 |
| 2026-10-13 | 10K | 16K | 63.8% | 0 |
| 2026-10-12 | 4K | 11K | 32.8% | 1 |
| 2026-10-09 | 9K | 12K | 76.2% | 0 |
| 2026-10-08 | 11K | 14K | 74.2% | 0 |
| 2026-10-07 | 3K | 6K | 57.5% | 0 |
| 2026-10-06 | 5K | 20K | 27.3% | 0 |
| 2026-10-05 | 10K | 28K | 35.7% | 526 |
| 2026-10-02 | 4K | 14K | 30.3% | 12 |
| 2026-10-01 | 1K | 7K | 14.9% | 0 |
| 2026-09-30 | 6K | 9K | 62.1% | 0 |
| 2026-09-29 | 13K | 21K | 62.2% | 0 |
| 2026-09-28 | 31K | 42K | 72.3% | 230 |
| 2026-09-25 | 16K | 40K | 40.6% | 101 |
| 2026-09-24 | 80K | 154K | 52.2% | 241 |
| 2026-09-23 | 162K | 286K | 56.5% | 715 |
| 2026-09-22 | 4K | 24K | 18.4% | 32 |
| 2026-09-21 | 2K | 8K | 23.3% | 2 |
| 2026-09-18 | 7K | 19K | 36.8% | 0 |
| 2026-09-17 | 6K | 13K | 49.1% | 0 |
| 2026-09-16 | 2K | 4K | 45.7% | 0 |
| 2026-09-15 | 1K | 3K | 35.9% | 0 |
| 2026-09-14 | 3K | 7K | 44.6% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 24 September 2026, the fails-to-deliver balance in KOSS is 12,202 shares, up 11,808 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (9 April 2026) to 12,202 shares (24 September 2026). The latest reading sits at the top of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-24 | 12,202 | $3.95 | $48K |
| 2026-08-04 | 394 | $3.73 | $1K |
| 2026-07-15 | 122 | $3.79 | $462 |
| 2026-06-29 | 150 | $3.99 | $599 |
| 2026-06-15 | 85 | $3.91 | $332 |
| 2026-06-11 | 397 | $3.91 | $2K |
| 2026-06-08 | 1,138 | $3.98 | $5K |
| 2026-06-05 | 927 | $4.06 | $4K |
| 2026-05-21 | 5 | $4.00 | $20 |
| 2026-04-09 | 1 | $3.80 | $4 |
| 2026-03-25 | 5 | $3.97 | $20 |
| 2026-03-24 | 3,382 | $4.01 | $14K |
| 2026-03-19 | 7 | $3.92 | $27 |
| 2026-02-27 | 165 | $4.08 | $673 |
| 2026-02-24 | 90 | $4.18 | $376 |
| 2026-02-20 | 42 | $4.17 | $175 |
| 2026-02-18 | 51 | $4.15 | $212 |
| 2026-02-17 | 100 | $4.38 | $438 |
| 2026-02-05 | 873 | $4.79 | $4K |
| 2026-02-03 | 403 | $4.82 | $2K |
| 2026-01-20 | 68 | $4.47 | $304 |
| 2026-01-16 | 197 | $4.39 | $865 |
| 2025-12-05 | 80 | $4.85 | $388 |
| 2025-12-01 | 80 | $5.01 | $401 |
| 2025-11-24 | 42 | $4.66 | $196 |
| 2025-11-21 | 188 | $4.57 | $859 |
| 2025-11-14 | 36 | $4.80 | $173 |
| 2025-11-12 | 1,177 | $5.01 | $6K |
| 2025-11-06 | 5,985 | $4.71 | $28K |
| 2025-11-05 | 5,985 | $4.60 | $28K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for KOSS in the last 90 days. The most recent filings are listed below. Latest filing: KOSS MICHAEL J (President and CEO) on 2026-02-17.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-02-17 | KOSS MICHAEL J | President and CEO | Other transaction | 12K | $0.00 | $0 | 0 |
| 2025-12-02 | LILLIE LENORE | Director | Buy | 3K | $4.96 | $12K | 3K |
| 2025-06-13 | Koss Michael J Jr | VP - Marketing & Product | Sell | 25K | $4.78 | $118K | 26K |
| 2025-06-13 | Koss Michael J Jr | VP - Marketing & Product | Exercise or conversion | 25K | $1.90 | $47K | 51K |
| 2025-06-12 | KOSS JOHN C JR | Vice President - Sales | Sell | 2K | $5.02 | $8K | 196K |
| 2025-06-12 | KOSS JOHN C JR | Vice President - Sales | Exercise or conversion | 2K | $1.90 | $3K | 198K |
| 2025-06-12 | Koss Michael J Jr | VP - Marketing & Product | Sell | 6K | $4.91 | $29K | 26K |
| 2025-06-12 | Koss Michael J Jr | VP - Marketing & Product | Exercise or conversion | 6K | $1.90 | $11K | 32K |
| 2025-06-11 | KOSS JOHN C JR | Vice President - Sales | Sell | 24K | $5.65 | $133K | 196K |
| 2025-06-11 | KOSS JOHN C JR | Vice President - Sales | Exercise or conversion | 24K | $1.90 | $45K | 220K |
| 2025-06-10 | KOSS JOHN C JR | Vice President - Sales | Sell | 25K | $5.80 | $145K | 196K |
| 2025-06-10 | KOSS JOHN C JR | Vice President - Sales | Exercise or conversion | 25K | $1.90 | $48K | 221K |
| 2024-12-12 | KOSS JOHN C JR | Vice President - Sales | Exercise or conversion | 25K | $1.90 | $48K | 221K |
| 2024-12-12 | KOSS JOHN C JR | Vice President - Sales | Sell | 25K | $7.39 | $185K | 196K |
| 2024-05-30 | KOSS MICHAEL J | President and CEO | Other transaction | 15K | $0.00 | $0 | 12K |
| 2024-05-20 | KOSS JOHN C JR | Vice President - Sales | Sell | 25K | $5.25 | $131K | 196K |
| 2024-05-20 | KOSS JOHN C JR | Vice President - Sales | Exercise or conversion | 25K | $2.17 | $54K | 221K |
| 2022-06-02 | Sweasy William Jesse | Director | Buy | 3K | $7.30 | $21K | 20K |
| 2022-06-01 | Sweasy William Jesse | Director | Buy | 17K | $6.96 | $119K | 17K |
| 2022-03-23 | KOSS JOHN C JR | Vice President - Sales | Voting trust | 1.0M | $0.00 | $0 | 0 |
| 2022-03-23 | KOSS JOHN C JR | Vice President - Sales | Voting trust | 708K | $0.00 | $0 | 0 |
| 2022-03-23 | KOSS JOHN C JR | Vice President - Sales | Voting trust | 984K | $0.00 | $0 | 0 |
| 2022-03-23 | KOSS MICHAEL J | President and CEO | Voting trust | 708K | $0.00 | $0 | 0 |
| 2022-03-23 | KOSS MICHAEL J | President and CEO | Voting trust | 1.0M | $0.00 | $0 | 0 |
| 2022-03-23 | KOSS MICHAEL J | President and CEO | Voting trust | 2.7M | $0.00 | $0 | 2.7M |
| 2022-03-23 | KOSS MICHAEL J | President and CEO | Voting trust | 984K | $0.00 | $0 | 0 |
| 2022-03-23 | KFT Corp | TenPercentOwner | Voting trust | 984K | $0.00 | $0 | 0 |
| 2022-03-23 | Koss Family Trust, Dated 9/11/12 | TenPercentOwner | Voting trust | 1.0M | $0.00 | $0 | 0 |
| 2021-11-02 | Smith David Donnan | Chief Financial Officer | Sell | 10K | $15.54 | $155K | 0 |
| 2021-11-02 | Smith David Donnan | Chief Financial Officer | Exercise or conversion | 10K | $2.63 | $26K | 10K |
| 2021-09-15 | Koss Michael J Jr | VP - Marketing & Product | Sell | 24K | $17.74 | $427K | 26K |
| 2021-09-15 | Koss Michael J Jr | VP - Marketing & Product | Exercise or conversion | 15K | $2.92 | $44K | 41K |
| 2021-09-15 | Koss Michael J Jr | VP - Marketing & Product | Exercise or conversion | 9K | $2.17 | $20K | 50K |
| 2021-09-01 | KOSS MICHAEL J | President and CEO | Sell | 780 | $18.75 | $15K | 775K |
| 2021-09-01 | KOSS MICHAEL J | President and CEO | Exercise or conversion | 780 | $1.95 | $2K | 776K |
| 2021-08-31 | KOSS MICHAEL J | President and CEO | Exercise or conversion | 9K | $1.95 | $18K | 784K |
| 2021-08-31 | KOSS MICHAEL J | President and CEO | Sell | 9K | $18.51 | $171K | 775K |
| 2021-08-31 | KOSS JOHN C JR | Vice President - Sales | Sell | 10K | $18.38 | $184K | 151K |
| 2021-08-31 | KOSS JOHN C JR | Vice President - Sales | Exercise or conversion | 10K | $1.90 | $19K | 161K |
| 2021-08-30 | KOSS MICHAEL J | President and CEO | Exercise or conversion | 5K | $1.95 | $11K | 780K |
| 2021-08-30 | KOSS MICHAEL J | President and CEO | Sell | 5K | $18.28 | $99K | 775K |
| 2021-08-30 | KOSS JOHN C JR | Vice President - Sales | Sell | 5K | $18.26 | $91K | 151K |
| 2021-08-30 | KOSS JOHN C JR | Vice President - Sales | Exercise or conversion | 5K | $1.90 | $10K | 156K |
| 2021-08-27 | KOSS MICHAEL J | President and CEO | Exercise or conversion | 5K | $1.95 | $9K | 780K |
| 2021-08-27 | KOSS MICHAEL J | President and CEO | Sell | 5K | $18.06 | $83K | 775K |
| 2021-08-27 | KOSS JOHN C JR | Vice President - Sales | Sell | 10K | $18.06 | $181K | 151K |
| 2021-08-27 | KOSS JOHN C JR | Vice President - Sales | Exercise or conversion | 10K | $1.90 | $19K | 161K |
| 2021-08-26 | KOSS MICHAEL J | President and CEO | Exercise or conversion | 9K | $1.95 | $17K | 783K |
| 2021-08-26 | KOSS MICHAEL J | President and CEO | Sell | 9K | $18.33 | $156K | 775K |
| 2021-08-25 | Koss Michael J Jr | VP - Marketing & Product | Exercise or conversion | 15K | $1.90 | $29K | 56K |
| 2021-08-25 | Koss Michael J Jr | VP - Marketing & Product | Exercise or conversion | 15K | $1.95 | $29K | 41K |
| 2021-08-25 | Koss Michael J Jr | VP - Marketing & Product | Sell | 30K | $18.01 | $540K | 26K |
| 2021-08-24 | Smith David Donnan | Chief Financial Officer | Exercise or conversion | 10K | $2.20 | $22K | 100K |
| 2021-08-24 | Smith David Donnan | Chief Financial Officer | Exercise or conversion | 10K | $2.63 | $26K | 20K |
| 2021-08-24 | Smith David Donnan | Chief Financial Officer | Exercise or conversion | 10K | $1.97 | $20K | 10K |
| 2021-08-24 | KOSS JOHN C JR | Vice President - Sales | Exercise or conversion | 25K | $2.92 | $73K | 201K |
| 2021-08-24 | KOSS JOHN C JR | Vice President - Sales | Exercise or conversion | 25K | $1.95 | $49K | 176K |
| 2021-08-24 | KOSS MICHAEL J | President and CEO | Sell | 17K | $19.74 | $326K | 775K |
| 2021-08-24 | KOSS MICHAEL J | President and CEO | Exercise or conversion | 17K | $1.95 | $32K | 791K |
| 2021-08-24 | KOSS JOHN C JR | Vice President - Sales | Exercise or conversion | 25K | $2.17 | $54K | 226K |
| 2021-08-24 | KOSS JOHN C JR | Vice President - Sales | Sell | 36K | $17.40 | $631K | 190K |
| 2021-08-24 | KOSS JOHN C JR | Vice President - Sales | Sell | 14K | $18.27 | $251K | 176K |
| 2021-08-24 | KOSS JOHN C JR | Vice President - Sales | Sell | 25K | $20.06 | $502K | 151K |
| 2021-08-24 | Smith David Donnan | Chief Financial Officer | Exercise or conversion | 48K | $3.00 | $144K | 68K |
| 2021-08-24 | Smith David Donnan | Chief Financial Officer | Exercise or conversion | 22K | $2.57 | $57K | 90K |
| 2021-08-24 | Smith David Donnan | Chief Financial Officer | Exercise or conversion | 10K | $1.73 | $17K | 110K |
| 2021-08-24 | Smith David Donnan | Chief Financial Officer | Sell | 110K | $17.64 | $1.9M | 0 |
| 2021-07-01 | LILLIE LENORE | VP - Operations | Sell | 15K | $22.27 | $334K | 0 |
| 2021-07-01 | LILLIE LENORE | VP - Operations | Exercise or conversion | 9K | $2.20 | $20K | 9K |
| 2021-07-01 | LILLIE LENORE | VP - Operations | Exercise or conversion | 6K | $1.97 | $12K | 15K |
| 2021-07-01 | Smith David Donnan | Chief Financial Officer | Exercise or conversion | 50K | $6.00 | $300K | 50K |
| 2021-07-01 | Smith David Donnan | Chief Financial Officer | Sell | 8K | $23.00 | $173K | 0 |
| 2021-07-01 | Smith David Donnan | Chief Financial Officer | Sell | 43K | $22.05 | $937K | 8K |
| 2021-06-15 | Koss Michael J Jr | VP - Marketing & Product | Sell | 10K | $24.30 | $243K | 26K |
| 2021-06-15 | KOSS JOHN C JR | Vice President - Sales | Sell | 5K | $24.22 | $121K | 151K |
| 2021-06-14 | KOSS JOHN C JR | Vice President - Sales | Sell | 3K | $25.20 | $76K | 156K |
| 2021-06-09 | KOSS JOHN C JR | Vice President - Sales | Sell | 5K | $27.00 | $135K | 159K |
| 2021-06-08 | KOSS JOHN C JR | Vice President - Sales | Sell | 8K | $30.00 | $244K | 164K |
| 2021-06-03 | KOSS JOHN C JR | Vice President - Sales | Sell | 5K | $35.36 | $177K | 172K |
| 2021-06-03 | KOSS JOHN C JR | Vice President - Sales | Sell | 5K | $32.50 | $163K | 177K |
| 2021-06-03 | KOSS JOHN C JR | Vice President - Sales | Sell | 5K | $30.00 | $150K | 182K |
| 2021-06-03 | KOSS JOHN C JR | Vice President - Sales | Sell | 5K | $31.35 | $157K | 187K |
| 2021-06-02 | KOSS MICHAEL J | President and CEO | Sell | 5K | $43.00 | $215K | 27K |
| 2021-06-02 | KOSS MICHAEL J | President and CEO | Sell | 10K | $28.18 | $282K | 783K |
| 2021-06-02 | KOSS MICHAEL J | President and CEO | Sell | 25K | $26.11 | $653K | 793K |
| 2021-06-02 | KOSS MICHAEL J | President and CEO | Sell | 8K | $29.63 | $244K | 775K |
| 2021-06-02 | KOSS MICHAEL J | President and CEO | Sell | 5K | $30.00 | $150K | 32K |
| 2021-06-02 | KOSS MICHAEL J | President and CEO | Exercise or conversion | 43K | $1.95 | $84K | 818K |
| 2021-06-02 | KOSS JOHN C JR | Vice President - Sales | Sell | 5K | $28.00 | $140K | 192K |
| 2021-06-02 | Koss Michael J Jr | VP - Marketing & Product | Sell | 10K | $40.51 | $405K | 36K |
| 2021-06-01 | KOSS MICHAEL J | President and CEO | Sell | 12K | $25.04 | $295K | 775K |
| 2021-06-01 | KOSS MICHAEL J | President and CEO | Exercise or conversion | 12K | $1.95 | $23K | 787K |
| 2021-06-01 | KOSS JOHN C JR | Vice President - Sales | Sell | 5K | $25.00 | $125K | 197K |
| 2021-05-28 | KOSS JOHN C JR | Vice President - Sales | Sell | 10K | $23.50 | $235K | 202K |
| 2021-05-28 | Nixon Theodore | Director | Sell | 10K | $23.58 | $236K | 0 |
| 2021-05-28 | Nixon Theodore | Director | Exercise or conversion | 10K | $1.92 | $19K | 10K |
| 2021-05-26 | KOSS MICHAEL J | President and CEO | Sell | 9K | $21.26 | $191K | 775K |
| 2021-05-18 | Doerr Thomas L. | Director | Sell | 3K | $18.83 | $63K | 0 |
| 2021-05-18 | Doerr Thomas L. | Director | Exercise or conversion | 3K | $1.92 | $6K | 3K |
| 2021-04-01 | Smith David Donnan | Chief Financial Officer | Sell | 11K | $22.12 | $232K | 6K |
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.
13F holders
Tracked managers holding KOSS at their latest 13F. JSON1 of the 30 tracked managers held KOSS at their latest 13F, $133K in total at quarter-end prices. Citadel Advisors is the largest at $133K (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 | 33K | $133K | 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
Koss 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 Koss (KOSS), SEC CIK 56701, listed on Nasdaq, classified by the SEC as household audio & video equipment. 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 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-23.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-24.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
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-27.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 2026-02-17.JSON and CSV
- Company record
- EDGAR filing index for CIK 56701Ticker, 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 KOSS is sold short?
111,610 shares were held short at the 2026-09-30 settlement, 1.1 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 KOSS's daily short volume?
On 2026-10-23, 43 of the 14,482 KOSS shares reported to FINRA were sold short, 0.3% of the day's reported volume. Short volume is a flow for one day, not a position.
Does KOSS have fails to deliver?
The SEC's latest file shows 12,202 KOSS shares failed to deliver at settlement 2026-09-24. Fails are reported per settlement date and published twice a month with a lag.
Are KOSS insiders buying or selling?
No open-market insider trades were reported for KOSS in the last 90 days. The most recent filings are listed below. Latest filing: KOSS MICHAEL J (President and CEO) on 2026-02-17.
Which tracked 13F managers own KOSS?
1 of the 30 tracked 13F managers held KOSS shares at their latest filing, $133K in all. The largest: Ken Griffin's Citadel Advisors (33K shares, $133K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.