Skip to main content
Livermore
Livermore
US stocksTW
ZHEN

HeartBeam, Inc.

BEAT
Exchange
Nasdaq
Industry
Surgical & Medical Instruments & Apparatus
SEC CIK
0001779372

No open-market purchases or sales by HeartBeam, Inc. insiders were filed in the last 90 days; 41 institutions reported holding it in 13F filings for Q2 2026, worth $6.08M in total; no superinvestor holds it.

Other share classesBEATW

Four kinds of short-selling data, each measuring something different:

  • Short interest: shares sold short and not yet bought back, as of a settlement date. FINRA publishes it twice a month, about eight business days after the settlement date.
  • Daily short volume: shares sold short each day in off-exchange trades reported to FINRA. It counts trades, not open positions, and is published the next day.
  • Fails-to-deliver: shares not delivered by the settlement date. The SEC publishes them twice a month, about two weeks late.
  • ATS (dark pool) volume: weekly volume on alternative trading systems and other off-exchange venues. FINRA publishes it two to four weeks after the week.

More in the glossary.

Short interest

Shares sold short and not yet bought back, from FINRA, on every settlement date in the last two years.

Short interest
2.27M
Shares, settlement Oct 30, 2026
Change
−214.7K
−8.6% vs. Oct 15, 2026
Days to cover
1.60
Short interest ÷ average daily volume
Average daily volume
1.42M
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 155,918 sharesNov 15, 2024: 76,138 sharesNov 29, 2024: 135,971 sharesDec 13, 2024: 172,292 sharesDec 31, 2024: 345,361 sharesJan 15, 2025: 292,176 sharesJan 31, 2025: 285,580 sharesFeb 14, 2025: 218,511 sharesFeb 28, 2025: 229,403 sharesMar 14, 2025: 222,140 sharesMar 31, 2025: 152,419 sharesApr 15, 2025: 116,970 sharesApr 30, 2025: 145,243 sharesMay 15, 2025: 108,047 sharesMay 30, 2025: 112,306 sharesJun 13, 2025: 125,956 sharesJun 30, 2025: 163,121 sharesJul 15, 2025: 149,199 sharesJul 31, 2025: 144,520 sharesAug 15, 2025: 172,260 sharesAug 29, 2025: 123,971 sharesSep 15, 2025: 205,958 sharesSep 30, 2025: 218,288 sharesOct 15, 2025: 300,752 sharesOct 31, 2025: 270,323 sharesNov 14, 2025: 281,699 sharesNov 28, 2025: 1,171,486 sharesDec 15, 2025: 7,684,089 sharesDec 31, 2025: 3,334,488 sharesJan 15, 2026: 3,077,013 sharesJan 30, 2026: 2,441,924 sharesFeb 13, 2026: 1,926,976 sharesFeb 27, 2026: 1,920,445 sharesMar 13, 2026: 4,077,076 sharesMar 31, 2026: 3,147,549 sharesApr 15, 2026: 3,085,817 sharesApr 30, 2026: 2,912,279 sharesMay 15, 2026: 2,591,875 sharesMay 29, 2026: 2,297,040 sharesJun 15, 2026: 2,134,477 sharesJun 30, 2026: 1,790,266 sharesJul 15, 2026: 2,542,524 sharesJul 31, 2026: 1,835,760 sharesAug 14, 2026: 2,425,935 sharesAug 31, 2026: 1,941,356 sharesSep 15, 2026: 2,124,373 sharesSep 30, 2026: 2,493,900 sharesOct 15, 2026: 2,484,378 sharesOct 30, 2026: 2,269,661 shares
Short interest in BEAT by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20262.27M−214.7K−8.6%1.42M1.60
Oct 15, 20262.48M−9.52K−0.4%39.7M1.00
Sep 30, 20262.49M+369.5K+17.4%400.9K6.22
Sep 15, 20262.12M+183.0K+9.4%414.1K5.13
Aug 31, 20261.94M−484.6K−20.0%303.4K6.40
Aug 14, 20262.43M+590.2K+32.2%604.8K4.01
Jul 31, 20261.84M−706.8K−27.8%398.3K4.61
Jul 15, 20262.54M+752.3K+42.0%1.69M1.51
Jun 30, 20261.79M−344.2K−16.1%628.6K2.85
Jun 15, 20262.13M−162.6K−7.1%696.4K3.07
May 29, 20262.30M−294.8K−11.4%472.1K4.87
May 15, 20262.59M−320.4K−11.0%878.3K2.95
Apr 30, 20262.91M−173.5K−5.6%1.66M1.76
Apr 15, 20263.09M−61.7K−2.0%1.19M2.58
Mar 31, 20263.15M−929.5K−22.8%515.4K6.11
Mar 13, 20264.08M+2.16M+112.3%4.18M1.00
Feb 27, 20261.92M−6.53K−0.3%405.9K4.73
Feb 13, 20261.93M−514.9K−21.1%450.1K4.28
Jan 30, 20262.44M−635.1K−20.6%886.7K2.75
Jan 15, 20263.08M−257.5K−7.7%1.48M2.08
Dec 31, 20253.33M−4.35M−56.6%10.8M1.00
Dec 15, 20257.68M+6.51M+555.9%48.3M1.00
Nov 28, 20251.17M+889.8K+315.9%13.3M1.00
Nov 14, 2025281.7K+11.4K+4.2%75.6K3.72
Oct 31, 2025270.3K−30.4K−10.1%86.9K3.11
Oct 15, 2025300.8K+82.5K+37.8%92.6K3.25
Sep 30, 2025218.3K+12.3K+6.0%100.0K2.18
Sep 15, 2025206.0K+82.0K+66.1%97.1K2.12
Aug 29, 2025124.0K−48.3K−28.0%80.2K1.55
Aug 15, 2025172.3K+27.7K+19.2%162.0K1.06
Jul 31, 2025144.5K−4.68K−3.1%62.6K2.31
Jul 15, 2025149.2K−13.9K−8.5%54.6K2.73
Jun 30, 2025163.1K+37.2K+29.5%228.3K1.00
Jun 13, 2025126.0K+13.7K+12.2%125.9K1.00
May 30, 2025112.3K+4.26K+3.9%78.9K1.42
May 15, 2025108.0K−37.2K−25.6%46.2K2.34
Apr 30, 2025145.2K+28.3K+24.2%76.0K1.91
Apr 15, 2025117.0K−35.4K−23.3%72.9K1.60
Mar 31, 2025152.4K−69.7K−31.4%51.3K2.97
Mar 14, 2025222.1K−7.26K−3.2%66.5K3.34
Feb 28, 2025229.4K+10.9K+5.0%93.1K2.46
Feb 14, 2025218.5K−67.1K−23.5%112.7K1.94
Jan 31, 2025285.6K−6.60K−2.3%129.7K2.20
Jan 15, 2025292.2K−53.2K−15.4%104.0K2.81
Dec 31, 2024345.4K+173.1K+100.5%419.0K1.00
Dec 13, 2024172.3K+36.3K+26.7%102.7K1.68
Nov 29, 2024136.0K+59.8K+78.6%148.6K1.00
Nov 15, 202476.1K−79.8K−51.2%85.0K1.00
Oct 31, 2024155.9K+30.7K+24.6%106.3K1.47

Fails-to-deliver

Shares that weren't delivered by the settlement date, from the SEC, for the last 30 dates with fails. The price is the previous day's closing price published by the SEC.

Fails-to-deliver in BEAT by settlement date
Settlement dateSharesPriceValue
Oct 9, 2026311,814$0.49$152.8K
Oct 7, 202612,908$0.58$7.49K
Oct 6, 20265,364,927$0.65$3.49M
Aug 28, 2026817$0.49$400.33
Aug 26, 202617,759$0.50$8.88K
Aug 24, 202677$0.49$37.73
Aug 20, 20262,165$0.48$1.04K
Aug 11, 202610,422$0.55$5.73K
Aug 10, 20261,724$0.52$896.48
Aug 4, 20263,125$0.49$1.53K
Jul 30, 2026198$0.51$100.98
Jul 29, 20265,261$0.53$2.79K
Jul 24, 20268,828$0.54$4.77K
Jul 23, 20266,438$0.56$3.61K
Jul 15, 2026147,028$0.56$82.3K
Jul 14, 202610,000$0.58$5.80K
Jul 7, 20266,558$0.69$4.53K
Jul 2, 202646,852$0.73$34.2K
Jul 1, 202646,853$0.75$35.1K
Jun 30, 20262,221$0.65$1.44K
Jun 25, 20268,854$0.69$6.11K
Jun 24, 20266,106$0.69$4.21K
Jun 23, 202645,435$0.71$32.3K
Jun 22, 202679,780$0.76$60.6K
Jun 18, 202696$0.72$69.12
Jun 17, 20266$0.72$4.32
Jun 16, 20262,701$0.78$2.11K
Jun 15, 202678$0.76$59.28
Jun 12, 20262,877$0.76$2.19K
Jun 11, 20263,052$0.76$2.32K

Daily short volume

Off-exchange short-sale volume, not short interest: shares sold short each day in trades reported to FINRA, for the last 30 trading days.

The short volume ratio isn't a sentiment gauge: market makers sell short to fill buy orders and to hedge, so short sales are usually about half of off-exchange volume.

Off-exchange short volume in BEAT by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 12, 2026124,5560250,09849.8%
Nov 11, 2026112,8171,100220,49151.2%
Nov 10, 2026113,9920196,33358.1%
Nov 9, 2026174,35820320,24154.4%
Nov 6, 2026147,5032,366468,59731.5%
Nov 5, 2026197,7560371,69753.2%
Nov 4, 2026163,124300514,69231.7%
Nov 3, 2026326,48850,118611,02353.4%
Nov 2, 20261,213,709123,5682,329,80652.1%
Oct 30, 2026691,08271,121,37461.6%
Oct 29, 2026773,1811,2691,486,11452.0%
Oct 28, 20262,421,72948,0943,873,40662.5%
Oct 27, 2026376,60110780,45348.3%
Oct 26, 2026189,336190461,84841.0%
Oct 23, 2026200,6969374,91253.5%
Oct 22, 2026115,0300363,03631.7%
Oct 21, 202686,0100200,01543.0%
Oct 20, 2026133,5880322,70241.4%
Oct 19, 2026163,5760447,04736.6%
Oct 16, 2026109,4420263,96441.5%
Oct 15, 2026305,360961777,20139.3%
Oct 14, 2026193,9316,722500,25538.8%
Oct 13, 2026400,12421,507888,78945.0%
Oct 12, 2026297,90914,287834,19935.7%
Oct 9, 2026366,12645,530924,97039.6%
Oct 8, 2026585,15539,9201,944,52930.1%
Oct 7, 20261,306,865201,6922,388,80054.7%
Oct 6, 20265,377,964673,0758,791,15461.2%
Oct 5, 2026130,580,446613,644227,807,73557.3%
Oct 2, 2026240,8070545,08544.2%

ATS (dark pool) volume

Weekly volume on alternative trading systems (ATS) and other off-exchange (OTC) venues, from FINRA, for the last 12 weeks. ATS share is ATS volume ÷ (ATS + OTC volume), not a share of all trading.

Weekly ATS and OTC volume in BEAT
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T213,300,21751,635297,288,303339,4664.3%
Sep 28, 2026T2236,2332,0142,427,2263,0978.9%
Sep 21, 2026T2180,5241,3881,731,3312,1999.4%
Sep 14, 2026T282,6778581,280,2161,5626.1%
Sep 7, 2026T288,867819532,5681,25914.3%
Aug 31, 2026T2130,4759491,228,6092,0549.6%
Aug 24, 2026T294,4751,409889,0751,5819.6%
Aug 17, 2026T299,9501,1561,053,9872,0538.7%
Aug 10, 2026T2232,1492,2482,266,7293,6859.3%
Aug 3, 2026T2185,1411,6291,216,7212,16713.2%
Jul 27, 2026T2104,5161,141839,8231,62411.1%
Jul 20, 2026T2135,4211,7501,084,8191,90511.1%