Tonix Pharmaceuticals Holding (TNXP)
Tonix Pharmaceuticals Holding on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq.
2.9M
Short interest
settlement 2026-09-30
5.9
Days to cover
-2.2 days vs prior
64.1%
Short share of volume
2026-10-23
202
Fails to deliver
settlement 2026-09-30
Tue 2 Feb
Next earnings
estimated date
$40K
Insider flow, 90 days
2 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 TNXP is 2,937,499 shares, down 164,517 shares over the last month. Over the last 48 readings it ranged from 333,835 shares (14 February 2025) to 15,925,228 shares (15 January 2025). At the reported average volume of 498K shares a day that is 5.9 days to cover.
Embed this chart.The embed keeps its attribution line.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 2,937,499 | +3.5% | 497,690 | 5.90 |
| 2026-09-15 | 2,838,419 | -8.5% | 348,877 | 8.14 |
| 2026-08-31 | 3,102,016 | -9.0% | 486,662 | 6.37 |
| 2026-08-14 | 3,408,130 | -5.4% | 490,661 | 6.95 |
| 2026-07-31 | 3,601,417 | +0.5% | 500,429 | 7.20 |
| 2026-07-15 | 3,584,541 | +0.1% | 495,938 | 7.23 |
| 2026-06-30 | 3,582,293 | +16.2% | 586,907 | 6.10 |
| 2026-06-15 | 3,081,836 | +7.5% | 615,384 | 5.01 |
| 2026-05-29 | 2,867,066 | +22.4% | 460,936 | 6.22 |
| 2026-05-15 | 2,342,643 | -10.2% | 461,124 | 5.08 |
| 2026-04-30 | 2,607,374 | +5.3% | 326,600 | 7.98 |
| 2026-04-15 | 2,476,401 | +19.3% | 453,445 | 5.46 |
| 2026-03-31 | 2,075,650 | -16.1% | 563,331 | 3.68 |
| 2026-03-13 | 2,473,177 | +17.5% | 303,253 | 8.16 |
| 2026-02-27 | 2,104,214 | -10.7% | 322,190 | 6.53 |
| 2026-02-13 | 2,355,361 | +0.9% | 313,128 | 7.52 |
| 2026-01-30 | 2,333,492 | +7.5% | 429,971 | 5.43 |
| 2026-01-15 | 2,171,198 | -6.3% | 473,369 | 4.59 |
| 2025-12-31 | 2,316,682 | +4.5% | 494,309 | 4.69 |
| 2025-12-15 | 2,216,942 | +9.7% | 549,619 | 4.03 |
| 2025-11-28 | 2,020,733 | +3.9% | 1,005,466 | 2.01 |
| 2025-11-14 | 1,944,721 | +6.0% | 623,935 | 3.12 |
| 2025-10-31 | 1,835,052 | +2.8% | 661,007 | 2.78 |
| 2025-10-15 | 1,785,053 | -7.5% | 1,017,698 | 1.75 |
| 2025-09-30 | 1,930,715 | +45.0% | 1,184,216 | 1.63 |
| 2025-09-15 | 1,331,960 | +13.5% | 1,247,295 | 1.07 |
| 2025-08-29 | 1,173,859 | -12.9% | 1,978,587 | 1.00 |
| 2025-08-15 | 1,347,517 | +11.7% | 1,873,453 | 1.00 |
| 2025-07-31 | 1,206,311 | +1.5% | 1,772,827 | 1.00 |
| 2025-07-15 | 1,188,503 | -1.7% | 789,911 | 1.50 |
| 2025-06-30 | 1,209,305 | +7.0% | 689,519 | 1.75 |
| 2025-06-13 | 1,129,784 | +7.0% | 770,733 | 1.47 |
| 2025-05-30 | 1,056,374 | +16.3% | 2,016,524 | 1.00 |
| 2025-05-15 | 908,353 | -7.0% | 634,843 | 1.43 |
| 2025-04-30 | 976,171 | -13.0% | 585,413 | 1.67 |
| 2025-04-15 | 1,121,764 | +21.9% | 936,927 | 1.20 |
| 2025-03-31 | 919,908 | +4.7% | 2,324,072 | 1.00 |
| 2025-03-14 | 878,522 | +59.4% | 2,627,239 | 1.00 |
| 2025-02-28 | 551,259 | +65.1% | 536,871 | 1.03 |
| 2025-02-14 | 333,835 | -96.6% | 2,316,646 | 1.00 |
| 2025-01-31 | 9,730,922 | -38.9% | 135,619,792 | 1.00 |
| 2025-01-15 | 15,925,228 | +104.7% | 68,151,151 | 1.00 |
| 2024-12-31 | 7,781,745 | +94.6% | 380,376,696 | 1.00 |
| 2024-12-13 | 3,999,258 | +151.5% | 37,555,342 | 1.00 |
| 2024-11-29 | 1,590,312 | -69.5% | 110,099,665 | 1.00 |
| 2024-11-15 | 5,221,229 | -31.9% | 11,416,031 | 1.00 |
| 2024-10-31 | 7,670,373 | +40.4% | 25,529,948 | 1.00 |
| 2024-10-15 | 5,463,201 | -34.1% | 16,354,555 | 1.00 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of TNXP volume is 64.1%, up 8.3 points over the last five sessions. Over the last 30 readings it ranged from 29.1% (14 September 2026) to 74.5% (15 October 2026). The latest reading is 8.3 points above the 30-session average of 55.8%, on 362K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 232K | 362K | 64.1% | 0 |
| 2026-10-22 | 223K | 389K | 57.4% | 0 |
| 2026-10-21 | 254K | 397K | 64.1% | 418 |
| 2026-10-20 | 222K | 344K | 64.5% | 4,597 |
| 2026-10-19 | 301K | 593K | 50.8% | 308 |
| 2026-10-16 | 238K | 425K | 55.8% | 24,837 |
| 2026-10-15 | 636K | 854K | 74.5% | 7,076 |
| 2026-10-14 | 449K | 774K | 58.1% | 1,099 |
| 2026-10-13 | 332K | 597K | 55.6% | 406 |
| 2026-10-12 | 255K | 471K | 54.2% | 4,443 |
| 2026-10-09 | 306K | 415K | 73.7% | 1,200 |
| 2026-10-08 | 221K | 507K | 43.5% | 2 |
| 2026-10-07 | 135K | 276K | 48.9% | 0 |
| 2026-10-06 | 508K | 1.5M | 32.9% | 59,841 |
| 2026-10-05 | 364K | 645K | 56.3% | 6,758 |
| 2026-10-02 | 268K | 406K | 66.0% | 1,775 |
| 2026-10-01 | 146K | 216K | 67.7% | 0 |
| 2026-09-30 | 55K | 108K | 50.9% | 0 |
| 2026-09-29 | 70K | 174K | 40.4% | 0 |
| 2026-09-28 | 98K | 157K | 62.3% | 180 |
| 2026-09-25 | 117K | 170K | 69.1% | 0 |
| 2026-09-24 | 180K | 293K | 61.7% | 1,130 |
| 2026-09-23 | 200K | 475K | 42.1% | 7,759 |
| 2026-09-22 | 115K | 267K | 43.2% | 9,854 |
| 2026-09-21 | 114K | 235K | 48.4% | 100 |
| 2026-09-18 | 83K | 161K | 51.3% | 0 |
| 2026-09-17 | 119K | 184K | 64.7% | 0 |
| 2026-09-16 | 80K | 120K | 66.6% | 0 |
| 2026-09-15 | 66K | 114K | 57.7% | 0 |
| 2026-09-14 | 79K | 273K | 29.1% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 30 September 2026, the fails-to-deliver balance in TNXP is 202 shares, down 674 shares over the last settlement date. Over the last 30 readings it ranged from 15 shares (17 July 2026) to 24,705 shares (21 August 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-30 | 202 | $9.65 | $2K |
| 2026-09-28 | 876 | $9.86 | $9K |
| 2026-09-25 | 1,908 | $9.70 | $19K |
| 2026-09-11 | 100 | $12.28 | $1K |
| 2026-09-08 | 1,977 | $13.14 | $26K |
| 2026-09-02 | 3,167 | $13.98 | $44K |
| 2026-08-31 | 57 | $13.59 | $775 |
| 2026-08-27 | 848 | $13.64 | $12K |
| 2026-08-26 | 429 | $13.66 | $6K |
| 2026-08-21 | 24,705 | $12.39 | $306K |
| 2026-08-20 | 88 | $12.73 | $1K |
| 2026-08-19 | 60 | $12.66 | $760 |
| 2026-08-17 | 25 | $12.71 | $318 |
| 2026-08-13 | 28 | $11.97 | $335 |
| 2026-08-11 | 850 | $12.59 | $11K |
| 2026-08-10 | 4,509 | $12.03 | $54K |
| 2026-08-07 | 150 | $11.65 | $2K |
| 2026-08-06 | 650 | $11.26 | $7K |
| 2026-08-04 | 98 | $10.67 | $1K |
| 2026-08-03 | 436 | $10.01 | $4K |
| 2026-07-31 | 1,170 | $10.09 | $12K |
| 2026-07-22 | 1,340 | $11.56 | $15K |
| 2026-07-17 | 15 | $11.85 | $178 |
| 2026-07-07 | 255 | $12.71 | $3K |
| 2026-07-02 | 524 | $12.44 | $7K |
| 2026-06-30 | 4,428 | $12.75 | $56K |
| 2026-06-29 | 6,347 | $13.22 | $84K |
| 2026-06-26 | 4,735 | $11.98 | $57K |
| 2026-06-25 | 1,756 | $12.10 | $21K |
| 2026-06-17 | 72 | $11.63 | $837 |
Insider trades
SEC Form 4, newest first. JSONInsiders at TNXP reported 2 open-market buys worth $40K in the last 90 days and no open-market sells. Latest filing: LEDERMAN SETH (Chief Executive Officer) on 2026-08-27.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-08-27 | LEDERMAN SETH | Chief Executive Officer | Buy | 2K | $13.79 | $28K | 11K |
| 2026-08-20 | BAGGER RICHARD H | Director | Buy | 1K | $12.60 | $13K | 1K |
| 2026-06-30 | SAENGER BRADLEY | Chief Financial Officer | Other transaction | 1K | $10.91 | $16K | 2K |
| 2026-06-12 | Taylor Carolyn E. | Director | Buy | 1K | $10.55 | $15K | 2K |
| 2026-06-09 | LEDERMAN SETH | Chief Executive Officer | Buy | 5K | $11.79 | $59K | 9K |
| 2026-06-08 | Stillwell Richard Newcomb | Director | Buy | 5K | $11.65 | $58K | 5K |
| 2026-03-31 | LEDERMAN SETH | Chief Executive Officer | Buy | 5K | $12.62 | $63K | 20K |
| 2026-03-18 | LEDERMAN SETH | Chief Executive Officer | Buy | 15K | $14.89 | $223K | 15K |
| 2025-08-21 | Taylor Carolyn E. | Director | Buy | 418 | $36.03 | $15K | 418 |
| 2025-08-20 | Treco James | Director | Buy | 250 | $36.00 | $9K | 250 |
| 2025-05-15 | LEDERMAN SETH | Chief Executive Officer | Buy | 4K | $21.55 | $86K | 4K |
| 2025-02-05 | MORRIS JESSICA EDGAR | Chief Operating Officer | Other transaction | 1 | $0.00 | $0 | 0 |
| 2025-02-05 | LEDERMAN SETH | Chief Executive Officer | Other transaction | 0 | $3.30 | $1 | 1 |
| 2025-02-05 | LEDERMAN SETH | Chief Executive Officer | Other transaction | 5 | $3.38 | $18 | 5 |
| 2025-02-05 | LEDERMAN SETH | Chief Executive Officer | Other transaction | 1 | $0.15 | $0 | 0 |
| 2025-02-05 | SULLIVAN GREGORY M | Chief Medical Officer | Other transaction | 0 | $1.47 | $0 | 0 |
| 2025-02-05 | SAENGER BRADLEY | Chief Financial Officer | Other transaction | 0 | $0.00 | $0 | 0 |
| 2025-02-05 | BAGGER RICHARD H | Director | Other transaction | 0 | $0.20 | $0 | 0 |
| 2025-02-05 | Treco James | Director | Other transaction | 0 | $0.30 | $0 | 0 |
| 2025-02-05 | Bell Margaret Smith | Director | Other transaction | 1 | $0.15 | $0 | 0 |
| 2024-06-10 | OLUKOTUN ADEOYE Y | Director | Other transaction | 1 | $1.91 | $2 | 0 |
| 2022-06-29 | LEDERMAN SETH | Chief Executive Officer | Buy | 20K | $1.71 | $34K | 24K |
| 2022-03-25 | LEDERMAN SETH | Chief Executive Officer | Buy | 100K | $0.25 | $25K | 112K |
| 2021-09-28 | LEDERMAN SETH | Chief Executive Officer | Buy | 12K | $0.61 | $7K | 12K |
| 2021-05-25 | Goodman Daniel Wintner | Director | Buy | 5K | $1.12 | $6K | 5K |
| 2021-03-24 | LEDERMAN SETH | Chief Executive Officer | Buy | 17K | $1.32 | $22K | 135K |
| 2021-01-07 | SULLIVAN GREGORY M | Chief Medical Officer | Grant | 41K | $0.51 | $21K | 63K |
| 2020-12-30 | LEDERMAN SETH | Chief Executive Officer | Buy | 35K | $0.68 | $24K | 118K |
| 2020-08-31 | Treco James | Director | Buy | 6K | $0.89 | $5K | 10K |
| 2020-08-20 | Bell Margaret Smith | Director | Buy | 5K | $0.93 | $5K | 5K |
| 2020-08-17 | SULLIVAN GREGORY M | Chief Medical Officer | Buy | 20K | $1.03 | $21K | 21K |
| 2020-08-14 | Treco James | Director | Buy | 5K | $1.06 | $5K | 5K |
| 2020-08-13 | BAGGER RICHARD H | Director | Buy | 10K | $0.91 | $9K | 10K |
| 2020-08-13 | LEDERMAN SETH | Chief Executive Officer | Buy | 60K | $0.91 | $55K | 83K |
| 2020-08-13 | OLUKOTUN ADEOYE Y | Director | Buy | 5K | $0.94 | $5K | 5K |
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.
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON9 holders report 5% or more of TNXP in their latest filing, all on Schedule 13G (passive). The largest reported stake is Point72 Asset Management, L.P. at 6.9% of the class (1,100,964 shares), filed 2026-05-15 for an event on 2026-03-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-14 | 13G/Ano. 1 | Sirenia Capital Management LPinvestment adviser, partnership | 815K | 4.9% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Alex Silversteinparent holding company, individual | 815K | 4.9% | 2026-06-30 |
| 2026-08-13 | 13G | AQR Capital Management, LLCinvestment adviser | 883K | 5.5% | 2026-06-30 |
| 2026-08-13 | 13G | AQR Capital Management Holdings, LLCparent holding company | 883K | 5.5% | 2026-06-30 |
| 2026-06-15 | 13G | Millennium Management LLCother entity | 890K | 5.6% | 2026-06-09 |
| 2026-06-15 | 13G | Millennium Group Management LLCother entity | 890K | 5.6% | 2026-06-09 |
| 2026-06-15 | 13G | Israel A. Englanderindividual | 890K | 5.6% | 2026-06-09 |
| 2026-05-15 | 13G/Ano. 1 | Point72 Asset Management, L.P.partnership | 1.1M | 6.9% | 2026-03-31 |
| 2026-05-15 | 13G/Ano. 1 | Point72 Capital Advisors, Inc.corporation | 1.1M | 6.9% | 2026-03-31 |
| 2026-05-15 | 13G/Ano. 1 | Steven A. Cohenindividual | 1.1M | 6.9% | 2026-03-31 |
| 2026-03-27 | 13G/Ano. 2 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2026-01-21 | 13G/Ano. 2 | BlackRock, Inc.parent holding company | 855K | 6.7% | 2025-12-31 |
13F holders
Tracked managers holding TNXP at their latest 13F. JSON5 of the 30 tracked managers held TNXP at their latest 13F, $41.4M in total at quarter-end prices. Point72 Asset Management is the largest at $14.9M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Point72 Asset Management | 2026-06-30 | 1.2M | $14.9M | 0.02% | +1.0M |
| Millennium Management | 2026-06-30 | 967K | $12.3M | 0.00% | +747K |
| AQR Capital Management | 2026-06-30 | 883K | $11.3M | 0.00% | +721K |
| Citadel Advisors | 2026-06-30 | 196K | $2.5M | 0.00% | -273K |
| Two Sigma Investments | 2026-06-30 | 29K | $368K | 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
Tonix Pharmaceuticals 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 Tonix Pharmaceuticals Holding (TNXP), SEC CIK 1430306, listed on Nasdaq. 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 2026-09-30.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 2026-08-14.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 2026-10-15.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 2026-08-27.JSON and CSV
- Company record
- EDGAR filing index for CIK 1430306Ticker, 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 TNXP is sold short?
What is TNXP's daily short volume?
Does TNXP have fails to deliver?
Are TNXP insiders buying or selling?
Who owns 5% or more of TNXP?
Which tracked 13F managers own TNXP?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.