AYTU BIOPHARMA, INC (AYTU)
Every FINRA and SEC series the site collects for AYTU BIOPHARMA, INC: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on Nasdaq.
334K
Short interest
settlement 2026-08-31
12.3
Days to cover
+4.0% vs prior
43.1%
Short share of volume
2026-09-17
531
Fails to deliver
settlement 2026-08-26
Tue 22 Sep
Next earnings
estimated; last year 2025-09-23
$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 AYTU is 334,399 shares, up 8,172 shares over the last month. Over the last 48 readings it ranged from 114,687 shares (14 March 2025) to 740,353 shares (15 May 2025). At the reported average volume of 27K shares a day that is 12.3 days to cover, a crowded short.
Embed this chartkeeps the attribution line it carries
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-08-31 | 334,399 | +4.0% | 27,080 | 12.35 |
| 2026-08-14 | 321,535 | -1.4% | 32,912 | 9.77 |
| 2026-07-31 | 326,227 | -6.0% | 26,109 | 12.49 |
| 2026-07-15 | 347,011 | -0.4% | 21,984 | 15.78 |
| 2026-06-30 | 348,497 | -1.6% | 29,148 | 11.96 |
| 2026-06-15 | 354,360 | -13.1% | 29,116 | 12.17 |
| 2026-05-29 | 407,982 | -10.9% | 46,825 | 8.71 |
| 2026-05-15 | 457,791 | -9.4% | 64,114 | 7.14 |
| 2026-04-30 | 505,368 | +0.6% | 25,601 | 19.74 |
| 2026-04-15 | 502,212 | -0.2% | 36,929 | 13.60 |
| 2026-03-31 | 503,361 | -0.9% | 50,667 | 9.93 |
| 2026-03-13 | 507,879 | +7.8% | 43,555 | 11.66 |
| 2026-02-27 | 471,283 | +3.9% | 39,712 | 11.87 |
| 2026-02-13 | 453,509 | -17.3% | 78,178 | 5.80 |
| 2026-01-30 | 548,197 | +1.0% | 84,363 | 6.50 |
| 2026-01-15 | 542,708 | +5.8% | 164,018 | 3.31 |
| 2025-12-31 | 513,218 | +10.9% | 132,956 | 3.86 |
| 2025-12-15 | 462,866 | +1.2% | 57,898 | 7.99 |
| 2025-11-28 | 457,210 | -6.2% | 49,496 | 9.24 |
| 2025-11-14 | 487,373 | -2.5% | 62,874 | 7.75 |
| 2025-10-31 | 499,690 | -18.4% | 81,848 | 6.11 |
| 2025-10-15 | 612,597 | +1.4% | 263,310 | 2.33 |
| 2025-09-30 | 604,226 | +30.8% | 502,841 | 1.20 |
| 2025-09-15 | 461,813 | -0.6% | 78,467 | 5.89 |
Daily short volume
FINRA Reg SHO, last 60 sessions. JSONAs of 17 September 2026, the short share of AYTU volume is 43.1%, up 18.9 points over the last five sessions. Over the last 52 readings it ranged from 2.0% (13 July 2026) to 65.8% (10 August 2026). The latest reading is 8.5 points above the 30-session average of 34.6%, on 5K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-09-17 | 2K | 5K | 43.1% | 0 |
| 2026-09-16 | 2K | 12K | 19.2% | 0 |
| 2026-09-15 | 5K | 13K | 39.4% | 0 |
| 2026-09-14 | 2K | 16K | 9.2% | 0 |
| 2026-09-11 | 6K | 26K | 23.7% | 0 |
| 2026-09-10 | 3K | 13K | 24.2% | 0 |
| 2026-09-09 | 2K | 4K | 53.3% | 0 |
| 2026-09-08 | 675 | 4K | 18.6% | 0 |
| 2026-09-04 | 2K | 10K | 16.1% | 0 |
| 2026-09-03 | 3K | 13K | 24.1% | 0 |
| 2026-09-02 | 267 | 2K | 15.7% | 0 |
| 2026-09-01 | 3K | 13K | 26.3% | 0 |
| 2026-08-31 | 2K | 7K | 31.2% | 0 |
| 2026-08-28 | 2K | 6K | 43.2% | 0 |
| 2026-08-27 | 2K | 14K | 12.3% | 0 |
| 2026-08-26 | 3K | 12K | 22.8% | 0 |
| 2026-08-25 | 7K | 11K | 61.8% | 0 |
| 2026-08-24 | 4K | 9K | 40.8% | 0 |
| 2026-08-21 | 12K | 22K | 56.8% | 0 |
| 2026-08-20 | 4K | 14K | 31.5% | 0 |
| 2026-08-19 | 10K | 21K | 47.5% | 0 |
| 2026-08-18 | 14K | 24K | 58.3% | 0 |
| 2026-08-17 | 1K | 2K | 47.1% | 0 |
| 2026-08-14 | 8K | 45K | 17.0% | 0 |
| 2026-08-13 | 6K | 32K | 17.9% | 0 |
| 2026-08-12 | 3K | 5K | 55.4% | 0 |
| 2026-08-11 | 5K | 8K | 56.5% | 0 |
| 2026-08-10 | 6K | 9K | 65.8% | 0 |
| 2026-08-07 | 1K | 23K | 5.9% | 0 |
| 2026-08-06 | 4K | 7K | 52.4% | 1,500 |
Fails to deliver
SEC, by settlement date. JSONAs of 26 August 2026, the fails-to-deliver balance in AYTU is 531 shares, up 234 shares over the last settlement date. Over the last 52 readings it ranged from 1 share (13 August 2026) to 7,400 shares (12 May 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-08-26 | 531 | $2.35 | $1K |
| 2026-08-25 | 297 | $2.31 | $686 |
| 2026-08-24 | 1,135 | $2.37 | $3K |
| 2026-08-21 | 778 | $2.28 | $2K |
| 2026-08-20 | 786 | $2.36 | $2K |
| 2026-08-13 | 1 | $2.38 | $2 |
| 2026-08-07 | 75 | $2.33 | $175 |
| 2026-08-05 | 813 | $2.21 | $2K |
| 2026-08-04 | 296 | $2.25 | $666 |
| 2026-07-30 | 2,314 | $2.08 | $5K |
| 2026-07-22 | 572 | $2.18 | $1K |
| 2026-07-20 | 784 | $2.17 | $2K |
| 2026-07-13 | 2,094 | $2.25 | $5K |
| 2026-07-09 | 1,084 | $2.18 | $2K |
| 2026-06-24 | 693 | $2.25 | $2K |
| 2026-06-23 | 323 | $2.25 | $727 |
| 2026-06-22 | 2,056 | $2.31 | $5K |
| 2026-06-16 | 10 | $2.20 | $22 |
| 2026-06-09 | 2,190 | $2.29 | $5K |
| 2026-06-03 | 680 | $2.10 | $1K |
| 2026-06-01 | 296 | $2.29 | $678 |
| 2026-05-28 | 2,096 | $2.21 | $5K |
| 2026-05-26 | 4,393 | $2.19 | $10K |
| 2026-05-12 | 7,400 | $2.44 | $18K |
| 2026-05-05 | 857 | $2.55 | $2K |
| 2026-05-04 | 138 | $2.61 | $360 |
| 2026-05-01 | 283 | $2.58 | $730 |
| 2026-04-28 | 939 | $2.56 | $2K |
| 2026-04-27 | 1,202 | $2.52 | $3K |
| 2026-04-24 | 2,526 | $2.52 | $6K |
Insider trades
SEC Form 4, newest first, 50 of 96 shown. JSONNo open-market insider trades were reported for AYTU 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: Disbrow Joshua R. (Chief Executive Officer) on 2026-07-28.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-07-28 | Disbrow Joshua R. | Chief Executive Officer | Grant | 30K | $0.00 | $0 | 237K |
| 2026-07-28 | PYSZCZYMUKA GREG | Chief Commercial Officer | Grant | 20K | $0.00 | $0 | 56K |
| 2026-07-28 | Disbrow Jarrett | Chief Business Officer | Grant | 15K | $0.00 | $0 | 77K |
| 2026-07-28 | Selhorn Ryan J | Chief Financial Officer | Grant | 25K | $0.00 | $0 | 75K |
| 2026-07-28 | LIU VIVIAN H | n/a | Grant | 10K | $0.00 | $0 | 30K |
| 2026-07-28 | JAIN ABHINAV | n/a | Grant | 10K | $0.00 | $0 | 30K |
| 2026-07-28 | DOCKERY CARL | n/a | Grant | 10K | $0.00 | $0 | 31K |
| 2026-07-28 | Donofrio John Jr. | n/a | Grant | 10K | $0.00 | $0 | 24K |
| 2025-10-03 | PYSZCZYMUKA GREG | Chief Commercial Officer | Grant | 13K | $0.00 | $0 | 36K |
| 2025-10-03 | Disbrow Jarrett | Chief Business Officer | Grant | 13K | $0.00 | $0 | 62K |
| 2025-10-03 | Disbrow Jarrett | Chief Business Officer | Grant | 20K | $0.00 | $0 | 49K |
| 2025-10-03 | Selhorn Ryan J | Chief Financial Officer | Grant | 18K | $0.00 | $0 | 50K |
| 2025-10-03 | Selhorn Ryan J | Chief Financial Officer | Grant | 16K | $0.00 | $0 | 32K |
| 2025-10-03 | Disbrow Joshua R. | Chief Executive Officer | Grant | 23K | $0.00 | $0 | 207K |
| 2025-10-03 | Disbrow Joshua R. | Chief Executive Officer | Grant | 31K | $0.00 | $0 | 185K |
| 2025-10-03 | LIU VIVIAN H | n/a | Grant | 10K | $0.00 | $0 | 20K |
| 2025-10-03 | JAIN ABHINAV | n/a | Grant | 10K | $0.00 | $0 | 20K |
| 2025-10-03 | DOCKERY CARL | n/a | Grant | 10K | $0.00 | $0 | 20K |
| 2025-10-03 | Donofrio John Jr. | n/a | Grant | 10K | $0.00 | $0 | 14K |
| 2025-06-09 | Disbrow Joshua R. | Chief Executive Officer | Buy | 67K | $1.50 | $100K | 153K |
| 2025-06-09 | Disbrow Jarrett | Chief Business Officer | Buy | 17K | $1.50 | $25K | 29K |
| 2025-03-31 | PYSZCZYMUKA GREG | Chief Commercial Officer | Option exercise | 209 | n/a | n/a | 24K |
| 2025-02-28 | Disbrow Joshua R. | Chief Executive Officer | Buy | 15K | $1.30 | $20K | 87K |
| 2025-02-05 | Selhorn Ryan J | Chief Financial Officer | Option exercise | 105 | n/a | n/a | 16K |
| 2024-12-31 | PYSZCZYMUKA GREG | Chief Commercial Officer | Option exercise | 208 | n/a | n/a | 23K |
| 2024-11-11 | Selhorn Ryan J | Chief Financial Officer | Grant | 14K | $0.00 | $0 | 16K |
| 2024-11-06 | LIU VIVIAN H | Director | Grant | 2K | $0.00 | $0 | 10K |
| 2024-11-06 | JAIN ABHINAV | Director | Grant | 2K | $0.00 | $0 | 10K |
| 2024-11-06 | Donofrio John Jr. | Director | Grant | 2K | $0.00 | $0 | 4K |
| 2024-11-06 | DOCKERY CARL | Director | Grant | 2K | $0.00 | $0 | 10K |
| 2024-09-30 | PYSZCZYMUKA GREG | Chief Commercial Officer | Option exercise | 209 | n/a | n/a | 23K |
| 2024-06-30 | PYSZCZYMUKA GREG | Chief Commercial Officer | Option exercise | 208 | n/a | n/a | 23K |
| 2024-03-31 | PYSZCZYMUKA GREG | Chief Commercial Officer | Option exercise | 208 | n/a | n/a | 23K |
| 2023-12-31 | PYSZCZYMUKA GREG | Chief Commercial Officer | Option exercise | 209 | n/a | n/a | 23K |
| 2023-09-30 | PYSZCZYMUKA GREG | Chief Commercial Officer | Option exercise | 208 | n/a | n/a | 22K |
| 2023-08-16 | JAIN ABHINAV | Director | Grant | 7K | $0.00 | $0 | 8K |
| 2023-08-11 | LIU VIVIAN H | Director | Grant | 2K | $0.00 | $0 | 8K |
| 2023-08-11 | DOCKERY CARL | Director | Grant | 2K | $0.00 | $0 | 9K |
| 2023-08-11 | Donofrio John Jr. | Director | Grant | 2K | $0.00 | $0 | 2K |
| 2023-08-11 | LIU VIVIAN H | Director | Grant | 2K | $0.00 | $0 | 2K |
| 2023-08-11 | JAIN ABHINAV | Director | Grant | 2K | $0.00 | $0 | 2K |
| 2023-06-30 | PYSZCZYMUKA GREG | Chief Commerical Officer | Option exercise | 208 | n/a | n/a | 22K |
| 2023-06-16 | PYSZCZYMUKA GREG | Chief Commerical Officer | Buy | 12K | $1.87 | $22K | 22K |
| 2023-06-14 | Disbrow Joshua R. | Chief Executive Officer | Buy | 14K | $1.86 | $26K | 72K |
| 2023-04-25 | PYSZCZYMUKA GREG | Chief Commerical Officer | Option exercise | 833 | $0.00 | $0 | 10K |
| 2023-02-08 | LIU VIVIAN H | Director | Grant | 7K | $0.00 | $0 | 7K |
| 2022-12-21 | DOCKERY CARL | Director | Disposition | 40K | $0.00 | $0 | 149K |
| 2022-12-21 | Cantrell Gary | Director | Disposition | 40K | $0.00 | $0 | 164K |
| 2022-12-21 | Donofrio John Jr. | Director | Disposition | 188K | $0.00 | $0 | 15K |
| 2022-12-20 | Disbrow Joshua R. | Chief Executive Officer | Disposition | 80K | $0.00 | $0 | 1.2M |
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.
Large holders (13D and 13G)
One row per reporting person, newest filing first. JSON8 holders above 5% have filed on AYTU, all on Schedule 13G (passive). The largest reported stake is Lytton-Kambara Foundation at 10.0% of the class (1,086,522 shares), filed 2025-11-14 for an event on 2025-09-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-14 | 13G/Ano. 3 | LYTTON-KAMBARA FOUNDATIONindividual | 546K | 5.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 3 | LYTTON LAURENCE Windividual | 546K | 5.0% | 2026-06-30 |
| 2026-02-17 | 13G/Ano. 2 | LYTTON LAURENCE Windividual | 1.1M | 10.0% | 2025-12-31 |
| 2026-02-17 | 13G/Ano. 2 | LYTTON-KAMBARA FOUNDATIONindividual | 896K | 8.8% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 1 | AWM Investment Company, Inc.investment adviser | 620K | 5.8% | 2025-12-31 |
| 2025-11-14 | 13G/Ano. 1 | LYTTON LAURENCE Windividual | 1.1M | 10.0% | 2025-09-30 |
| 2025-11-14 | 13G/Ano. 1 | Lytton-Kambara Foundationindividual | 1.1M | 10.0% | 2025-09-30 |
| 2025-11-12 | 13G/Ano. 1 | Kanen Wealth Management LLCinvestment adviser | 0 | 0.0% | 2025-09-30 |
| 2025-11-12 | 13G/Ano. 1 | Kanen Davidindividual | 0 | 0.0% | 2025-09-30 |
| 2025-11-12 | 13G/Ano. 1 | Philotimo Focused Growth & Income Fundother entity | 0 | 0.0% | 2025-09-30 |
| 2025-11-12 | 13G/Ano. 1 | Philotimo Fund, LPpartnership | 0 | 0.0% | 2025-09-30 |
13F holders
Tracked managers holding AYTU at their latest 13F. JSON3 of the 30 tracked managers held AYTU at their latest 13F, $558K in total at quarter-end prices. Two Sigma Investments is the largest at $226K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Two Sigma Investments | 2026-06-30 | 105K | $226K | 0.00% | -17K |
| Renaissance Technologies | 2026-06-30 | 105K | $225K | 0.00% | +11K |
| Citadel Advisors | 2026-06-30 | 49K | $106K | 0.00% | +13K |
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
AYTU BIOPHARMA, 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 AYTU BIOPHARMA, INC (AYTU), SEC CIK 1385818, listed on Nasdaq. 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 2026-08-26.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 2026-08-14.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
- 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 2026-05-13.JSON and CSV
- Insider trades
- SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-07-28.JSON and CSV
- Company record
- EDGAR filing index for CIK 1385818Ticker, 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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Datasets
Frequently Asked Questions
How much of AYTU is sold short?
What is AYTU's daily short volume?
Does AYTU have fails to deliver?
Are AYTU insiders buying or selling?
Who owns more than 5% of AYTU?
Which funds hold AYTU?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.