XOOMAR

Lantern Pharma (LTRN)

Lantern Pharma on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as pharmaceutical preparations.

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389K

Short interest

settlement 2026-10-15

1.5

Days to cover

+0.2 days vs prior

28.1%

Short share of volume

2026-11-02

151

Fails to deliver

settlement 2026-09-24

Thu 12 Nov

Next earnings

estimated date

$0

Insider flow, 90 days

0 buys, 0 sells

As of 2026-11-02.

Short interest

FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSON

As of 15 October 2026, short interest in LTRN is 388,655 shares, down 169,326 shares over the last month. Over the last 48 readings it ranged from 160,112 shares (29 November 2024) to 2,185,435 shares (31 March 2026). At the reported average volume of 259K shares a day that is 1.5 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-10-15388,655-20.0%259,3301.50
2026-09-30485,750-12.9%369,5381.31
2026-09-15557,981-1.2%167,3763.33
2026-08-31564,632-18.5%135,7184.16
2026-08-14693,034-18.1%85,7848.08
2026-07-31846,372-10.5%83,91710.09
2026-07-15945,216+1.7%184,3845.13
2026-06-30929,051-32.1%179,6135.17
2026-06-151,368,147-7.4%230,4155.94
2026-05-291,477,549-22.3%256,8965.75
2026-05-151,902,332-5.6%355,7315.35
2026-04-302,015,897+15.8%271,4977.43
2026-04-151,741,042-20.3%491,4433.54
2026-03-312,185,435+598.5%2,140,2051.02
2026-03-13312,900-4.7%34,7948.99
2026-02-27328,147+6.5%66,4414.94
2026-02-13307,970+0.3%46,8706.57
2026-01-30307,044-1.9%62,3914.92
2026-01-15312,903+10.5%48,2756.48
2025-12-31283,120-3.9%59,2814.78
2025-12-15294,743+0.7%66,4864.43
2025-11-28292,752+4.2%78,5733.73
2025-11-14281,028+0.1%67,4064.17
2025-10-31280,703+8.2%145,8891.92
2025-10-15259,396-33.4%158,2871.64
2025-09-30389,714+4.0%228,0261.71
2025-09-15374,696-18.5%76,0464.93
2025-08-29459,566-12.2%71,9106.39
2025-08-15523,402-2.0%186,8742.80
2025-07-31534,028-2.7%509,4781.05
2025-07-15548,974+109.4%548,9621.00
2025-06-30262,123-5.1%39,9896.55
2025-06-13276,153+3.8%61,0234.53
2025-05-30266,167+4.4%91,9242.90
2025-05-15254,840+0.3%46,5175.48
2025-04-30254,171-6.9%22,61011.24
2025-04-15273,109+5.3%56,7494.81
2025-03-31259,349+8.3%25,15610.31
2025-03-14239,399+3.0%33,3357.18
2025-02-28232,366+4.6%54,8754.23
2025-02-14222,165-6.9%79,3432.80
2025-01-31238,666+27.4%237,8101.00
2025-01-15187,398-3.6%55,1823.40
2024-12-31194,360-4.6%77,2932.51
2024-12-13203,663+27.2%93,2052.19
2024-11-29160,112-0.5%62,6272.56
2024-11-15160,852-2.9%45,5933.53
2024-10-31165,564-6.4%41,3834.00

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 2 November 2026, the short share of LTRN volume is 28.1%, down 22.6 points over the last five sessions. Over the last 30 readings it ranged from 19.6% (7 October 2026) to 79.0% (23 September 2026). The latest reading is 24.1 points below the 30-session average of 52.2%, on 112K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-11-0231K112K28.1%14,349
2026-10-3052K190K27.1%18,643
2026-10-2939K106K36.7%2,493
2026-10-28293K403K72.8%1
2026-10-2733K45K73.1%0
2026-10-2631K60K50.6%0
2026-10-2364K121K53.1%650
2026-10-2233K82K40.3%100
2026-10-2141K88K47.2%0
2026-10-20364K598K60.8%3,129
2026-10-1939K74K52.8%0
2026-10-16152K211K72.3%1,400
2026-10-1585K138K61.2%0
2026-10-1480K152K52.8%19
2026-10-1350K86K58.1%1,098
2026-10-1265K113K57.4%2,423
2026-10-0947K150K31.7%0
2026-10-0835K101K34.7%270
2026-10-0729K147K19.6%100
2026-10-06111K211K52.8%331
2026-10-0564K138K46.5%1,942
2026-10-02128K234K54.9%22,346
2026-10-0193K139K66.6%5,237
2026-09-3067K197K34.2%242
2026-09-29107K137K78.4%17,207
2026-09-28143K277K51.6%75
2026-09-2589K148K59.8%21,086
2026-09-24165K303K54.6%3,162
2026-09-23159K202K79.0%28,757
2026-09-22197K345K57.3%4,672

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 24 September 2026, the fails-to-deliver balance in LTRN is 151 shares, down 344 shares over the last settlement date. Over the last 30 readings it ranged from 17 shares (26 May 2026) to 27,212 shares (18 May 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-09-24151$1.39$210
2026-09-21495$1.55$767
2026-09-17433$1.93$836
2026-08-2416,546$2.34$39K
2026-08-2116,040$2.29$37K
2026-08-1817,963$2.60$47K
2026-08-1717,963$2.65$48K
2026-07-22827$2.94$2K
2026-07-1065$3.35$218
2026-07-082,514$3.57$9K
2026-07-0259$4.02$237
2026-06-261,018$3.67$4K
2026-06-256,278$3.95$25K
2026-06-1721,868$3.91$86K
2026-06-15333$3.88$1K
2026-06-121,781$4.07$7K
2026-06-112,389$3.88$9K
2026-06-102,903$3.81$11K
2026-06-099,909$3.75$37K
2026-06-081,248$3.59$4K
2026-06-059,480$3.79$36K
2026-06-04629$3.40$2K
2026-06-02255$3.74$954
2026-05-2916,782$3.50$59K
2026-05-2617$3.50$60
2026-05-22270$3.32$896
2026-05-209,746$3.09$30K
2026-05-1922,812$3.00$68K
2026-05-1827,212$3.14$85K
2026-05-1520,998$3.13$66K

Insider trades

SEC Form 4, newest first. JSON

No open-market insider trades were reported for LTRN in the last 90 days. The most recent filings are listed below. Latest filing: Schalop Lee Troy (Director) on 2026-05-12.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-05-12Schalop Lee TroyDirectorBuy49K$2.06$100K49K
2026-05-12KEYSER D JEFFREYDirectorBuy49K$2.06$100K94K
2025-06-13BP Directors, LPTenPercentOwnerSell7K$3.09$22K189K
2025-06-13BP Directors, LPTenPercentOwnerSell2K$3.09$6K50K
2025-06-13BP Directors, LPTenPercentOwnerSell4K$3.09$13K114K
2025-06-13BP Directors, LPTenPercentOwnerSell12K$3.09$38K323K
2025-06-13BP Directors, LPTenPercentOwnerSell14K$3.09$44K373K
2025-06-13BIOS Fund II QP, LPTenPercentOwnerSell7K$3.09$22K189K
2025-06-13BIOS Fund II QP, LPTenPercentOwnerSell14K$3.09$44K373K
2025-06-13BIOS Fund II QP, LPTenPercentOwnerSell2K$3.09$6K50K
2025-06-13BIOS Fund II QP, LPTenPercentOwnerSell4K$3.09$13K114K
2025-06-13BIOS Fund II QP, LPTenPercentOwnerSell12K$3.09$38K323K
2025-06-13Kreis Leslie W.10% ownerSell4K$3.09$13K114K
2025-06-13Kreis Leslie W.10% ownerSell14K$3.09$44K373K
2025-06-13Kreis Leslie W.10% ownerSell2K$3.09$6K50K
2025-06-13Kreis Leslie W.10% ownerSell12K$3.09$38K323K
2025-06-13Kreis Leslie W.10% ownerSell7K$3.09$22K189K
2025-06-13Fletcher Aaron G.L.10% ownerSell4K$3.09$13K114K
2025-06-13Fletcher Aaron G.L.10% ownerSell14K$3.09$44K373K
2025-06-13Fletcher Aaron G.L.10% ownerSell2K$3.09$6K50K
2025-06-13Fletcher Aaron G.L.10% ownerSell12K$3.09$38K323K
2025-06-13Fletcher Aaron G.L.10% ownerSell7K$3.09$22K189K
2025-06-12Cavu Advisors, LLCTenPercentOwnerSell3K$3.38$10K52K
2025-06-12Cavu Advisors, LLCTenPercentOwnerSell22K$3.38$73K387K
2025-06-12Cavu Advisors, LLCTenPercentOwnerSell7K$3.38$22K119K
2025-06-12Cavu Advisors, LLCTenPercentOwnerSell19K$3.38$63K336K
2025-06-12Cavu Advisors, LLCTenPercentOwnerSell11K$3.38$37K196K
2025-06-12BIOS Fund I, LPTenPercentOwnerSell19K$3.38$63K336K
2025-06-12BIOS Fund I, LPTenPercentOwnerSell3K$3.38$10K52K
2025-06-12BIOS Fund I, LPTenPercentOwnerSell22K$3.38$73K387K
2025-06-12BIOS Fund I, LPTenPercentOwnerSell7K$3.38$22K119K
2025-06-12BIOS Fund I, LPTenPercentOwnerSell11K$3.38$37K196K
2025-06-12Kreis Leslie W.10% ownerSell7K$3.38$22K119K
2025-06-12Kreis Leslie W.10% ownerSell22K$3.38$73K387K
2025-06-12Kreis Leslie W.10% ownerSell3K$3.38$10K52K
2025-06-12Kreis Leslie W.10% ownerSell19K$3.38$63K336K
2025-06-12Kreis Leslie W.10% ownerSell11K$3.38$37K196K
2025-06-12Fletcher Aaron G.L.10% ownerSell7K$3.38$22K119K
2025-06-12Fletcher Aaron G.L.10% ownerSell22K$3.38$73K387K
2025-06-12Fletcher Aaron G.L.10% ownerSell3K$3.38$10K52K
2025-06-12Fletcher Aaron G.L.10% ownerSell19K$3.38$63K336K
2025-06-12Fletcher Aaron G.L.10% ownerSell11K$3.38$37K196K
2025-06-11Cavu Advisors, LLCTenPercentOwnerSell338$3.40$1K409K
2025-06-11Cavu Advisors, LLCTenPercentOwnerSell103$3.40$350125K
2025-06-11Cavu Advisors, LLCTenPercentOwnerSell293$3.40$996354K
2025-06-11Cavu Advisors, LLCTenPercentOwnerSell171$3.40$581207K
2025-06-11Cavu Advisors, LLCTenPercentOwnerSell45$3.40$15355K
2025-06-11BIOS Fund I, LPTenPercentOwnerSell293$3.40$996354K
2025-06-11BIOS Fund I, LPTenPercentOwnerSell45$3.40$15355K
2025-06-11BIOS Fund I, LPTenPercentOwnerSell338$3.40$1K409K
2025-06-11BIOS Fund I, LPTenPercentOwnerSell103$3.40$350125K
2025-06-11BIOS Fund I, LPTenPercentOwnerSell171$3.40$581207K
2025-06-11Kreis Leslie W.10% ownerSell103$3.40$350125K
2025-06-11Kreis Leslie W.10% ownerSell338$3.40$1K409K
2025-06-11Kreis Leslie W.10% ownerSell45$3.40$15355K
2025-06-11Kreis Leslie W.10% ownerSell293$3.40$996354K
2025-06-11Kreis Leslie W.10% ownerSell171$3.40$581207K
2025-06-11Fletcher Aaron G.L.10% ownerSell103$3.40$350125K
2025-06-11Fletcher Aaron G.L.10% ownerSell338$3.40$1K409K
2025-06-11Fletcher Aaron G.L.10% ownerSell45$3.40$15355K
2025-06-11Fletcher Aaron G.L.10% ownerSell293$3.40$996354K
2025-06-11Fletcher Aaron G.L.10% ownerSell171$3.40$581207K
2025-06-10Cavu Advisors, LLCTenPercentOwnerSell2$3.40$7125K
2025-06-10Cavu Advisors, LLCTenPercentOwnerSell1$3.40$355K
2025-06-10Cavu Advisors, LLCTenPercentOwnerSell5$3.40$17355K
2025-06-10Cavu Advisors, LLCTenPercentOwnerSell3$3.40$10207K
2025-06-10BIOS Fund I, LPTenPercentOwnerSell2$3.40$7125K
2025-06-10BIOS Fund I, LPTenPercentOwnerSell3$3.40$10207K
2025-06-10BIOS Fund I, LPTenPercentOwnerSell5$3.40$17355K
2025-06-10BIOS Fund I, LPTenPercentOwnerSell1$3.40$355K
2025-06-10Kreis Leslie W.10% ownerSell2$3.40$7125K
2025-06-10Kreis Leslie W.10% ownerSell1$3.40$355K
2025-06-10Kreis Leslie W.10% ownerSell5$3.40$17355K
2025-06-10Kreis Leslie W.10% ownerSell3$3.40$10207K
2025-06-10Fletcher Aaron G.L.10% ownerSell2$3.40$7125K
2025-06-10Fletcher Aaron G.L.10% ownerSell1$3.40$355K
2025-06-10Fletcher Aaron G.L.10% ownerSell5$3.40$17355K
2025-06-10Fletcher Aaron G.L.10% ownerSell3$3.40$10207K
2025-05-29Cavu Advisors, LLCTenPercentOwnerSell961$3.03$3K55K
2025-05-29Cavu Advisors, LLCTenPercentOwnerSell7K$3.03$22K409K
2025-05-29Cavu Advisors, LLCTenPercentOwnerSell6K$3.03$19K355K
2025-05-29Cavu Advisors, LLCTenPercentOwnerSell4K$3.03$11K207K
2025-05-29Cavu Advisors, LLCTenPercentOwnerSell2K$3.03$7K125K
2025-05-29BIOS Advisors GP, LLCTenPercentOwnerSell4K$3.03$11K207K
2025-05-29BIOS Advisors GP, LLCTenPercentOwnerSell6K$3.03$19K355K
2025-05-29BIOS Advisors GP, LLCTenPercentOwnerSell961$3.03$3K55K
2025-05-29BIOS Advisors GP, LLCTenPercentOwnerSell7K$3.03$22K409K
2025-05-29BIOS Advisors GP, LLCTenPercentOwnerSell2K$3.03$7K125K
2025-05-28Cavu Advisors, LLCTenPercentOwnerSell714$2.87$2K56K
2025-05-28Cavu Advisors, LLCTenPercentOwnerSell5K$2.87$15K416K
2025-05-28Cavu Advisors, LLCTenPercentOwnerSell2K$2.87$5K128K
2025-05-28Cavu Advisors, LLCTenPercentOwnerSell5K$2.87$13K361K
2025-05-28Cavu Advisors, LLCTenPercentOwnerSell3K$2.87$8K211K
2025-05-28BIOS Advisors GP, LLCTenPercentOwnerSell2K$2.87$5K128K
2025-05-28BIOS Advisors GP, LLCTenPercentOwnerSell3K$2.87$8K211K
2025-05-28BIOS Advisors GP, LLCTenPercentOwnerSell5K$2.87$13K361K
2025-05-28BIOS Advisors GP, LLCTenPercentOwnerSell714$2.87$2K56K
2025-05-28BIOS Advisors GP, LLCTenPercentOwnerSell5K$2.87$15K416K
2025-05-27Cavu Advisors, LLCTenPercentOwnerSell1K$3.05$3K56K
2025-05-27Cavu Advisors, LLCTenPercentOwnerSell7K$3.05$23K422K

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. JSON

3 holders report 5% or more of LTRN in their latest filing, 2 on Schedule 13D (active intent). The largest reported stake is Thomas A. Satterfield, Jr. at 7.6% of the class (975,000 shares), filed 2026-07-23 for an event on 2026-06-30.

FiledFormHolderSharesOf classEvent
2026-10-1313G/Ano. 1Ryan M. Laneinsurance company, parent holding company756K5.0%2026-09-30
2026-10-1313G/Ano. 1Empery Asset Management, LPinvestment adviser, partnership756K5.0%2026-09-30
2026-07-2313G/Ano. 1Thomas A. Satterfield, Jr.individual975K7.6%2026-06-30
2026-05-1513D/Ano. 7CAVU MANAGEMENT, LPpartnership571K4.5%2026-05-15
2026-05-1513D/Ano. 7BIOS CAPITAL MANAGEMENT, LPpartnership571K4.5%2026-05-15
2026-05-1513D/Ano. 7LESLIE W. KREISindividual571K4.5%2026-05-15
2026-05-1513D/Ano. 7CAVU ADVISORS, LLCpartnership571K4.5%2026-05-15
2026-05-1513D/Ano. 7AARON G.L. FLETCHERindividual571K4.5%2026-05-15
2026-05-1513D/Ano. 7BIOS ADVISORS GP, LLCpartnership571K4.5%2026-05-15
2026-05-1513D/Ano. 7BIOS EQUITY PARTNERS II, LPpartnership305K2.4%2026-05-15
2026-05-1513D/Ano. 7BIOS EQUITY PARTNERS, LPpartnership267K2.1%2026-05-15
2026-05-1513D/Ano. 7BIOS FUND II QP, LPpartnership212K1.7%2026-05-15
2026-05-1513D/Ano. 7Bios Fund I, LPpartnership152K1.2%2026-05-15
2026-05-1513D/Ano. 7BIOS FUND I QP, LPpartnership89K0.7%2026-05-15
2026-05-1513D/Ano. 7BIOS FUND II, LPpartnership65K0.5%2026-05-15
2026-05-1513D/Ano. 7BIOS FUND II NT, LPpartnership28K0.2%2026-05-15
2026-05-1513D/Ano. 7BP DIRECTORS, LPpartnership26K0.2%2026-05-15
2026-04-1613D/Ano. 6Kreis Leslie W.individual835K7.4%2026-04-16
2026-04-1613D/Ano. 6Fletcher Aaron G.L.individual835K7.4%2026-04-16

13F holders

Tracked managers holding LTRN at their latest 13F. JSON

2 of the 30 tracked managers held LTRN at their latest 13F, $1.4M in total at quarter-end prices. Renaissance Technologies is the largest at $1.2M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 0 cut.

FundQuarterSharesValueOf portfolioChange in shares
Renaissance Technologies2026-06-30291K$1.2M0.00%+175K
Citadel Advisors2026-06-3048K$200K0.00%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

Lantern Pharma 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 Lantern Pharma (LTRN), SEC CIK 1763950, listed on Nasdaq, classified by the SEC as pharmaceutical preparations. 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 2026-09-24.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 2026-10-13.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 2026-08-14.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 2026-05-12.JSON and CSV
Company record
EDGAR filing index for CIK 1763950Ticker, 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.

Datasets

Frequently Asked Questions

How much of LTRN is sold short?
388,655 shares were held short at the 2026-10-15 settlement, 1.5 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 LTRN's daily short volume?
On 2026-11-02, 31,367 of the 111,717 LTRN shares reported to FINRA were sold short, 28.1% of the day's reported volume. Short volume is a flow for one day, not a position.
Does LTRN have fails to deliver?
The SEC's latest file shows 151 LTRN shares failed to deliver at settlement 2026-09-24. Fails are reported per settlement date and published twice a month with a lag.
Are LTRN insiders buying or selling?
No open-market insider trades were reported for LTRN in the last 90 days. The most recent filings are listed below. Latest filing: Schalop Lee Troy (Director) on 2026-05-12.
Who owns 5% or more of LTRN?
3 holders report 5% or more of LTRN in their latest filing, 2 on Schedule 13D (active intent). The largest reported stake is Thomas A. Satterfield, Jr. at 7.6% of the class (975,000 shares), filed 2026-07-23 for an event on 2026-06-30.
Which tracked 13F managers own LTRN?
2 of the 30 tracked 13F managers held LTRN shares at their latest filing, $1.4M in all. The largest: Renaissance Technologies (291K shares, $1.2M), Ken Griffin's Citadel Advisors (48K shares, $200K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.