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Ascendis Pharma A/S

ASND
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001612042

In the last 90 days, Ascendis Pharma A/S insiders filed 1 open-market purchase and 2 sales; 315 institutions reported holding it in 13F filings for Q2 2026, worth $17.8B in total; no superinvestor holds it.

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
3.00M
Shares, settlement Oct 30, 2026
Change
−134.8K
−4.3% vs. Oct 15, 2026
Days to cover
4.99
Short interest ÷ average daily volume
Average daily volume
600.8K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 3,407,568 sharesNov 15, 2024: 3,574,434 sharesNov 29, 2024: 3,767,316 sharesDec 13, 2024: 3,624,875 sharesDec 31, 2024: 3,417,161 sharesJan 15, 2025: 3,253,425 sharesJan 31, 2025: 3,286,884 sharesFeb 14, 2025: 3,628,368 sharesFeb 28, 2025: 3,981,039 sharesMar 14, 2025: 4,384,256 sharesMar 31, 2025: 4,306,334 sharesApr 15, 2025: 4,139,144 sharesApr 30, 2025: 3,896,320 sharesMay 15, 2025: 3,755,758 sharesMay 30, 2025: 3,376,040 sharesJun 13, 2025: 2,693,234 sharesJun 30, 2025: 2,262,362 sharesJul 15, 2025: 2,728,030 sharesJul 31, 2025: 2,755,298 sharesAug 15, 2025: 2,487,423 sharesAug 29, 2025: 2,680,767 sharesSep 15, 2025: 2,289,654 sharesSep 30, 2025: 2,562,570 sharesOct 15, 2025: 3,422,190 sharesOct 31, 2025: 3,549,505 sharesNov 14, 2025: 2,987,645 sharesNov 28, 2025: 3,296,433 sharesDec 15, 2025: 3,388,247 sharesDec 31, 2025: 3,453,178 sharesJan 15, 2026: 3,162,754 sharesJan 30, 2026: 2,896,919 sharesFeb 13, 2026: 3,802,853 sharesFeb 27, 2026: 3,871,638 sharesMar 13, 2026: 3,850,275 sharesMar 31, 2026: 3,695,502 sharesApr 15, 2026: 3,654,940 sharesApr 30, 2026: 2,832,689 sharesMay 15, 2026: 1,721,179 sharesMay 29, 2026: 1,720,143 sharesJun 15, 2026: 1,987,044 sharesJun 30, 2026: 3,277,898 sharesJul 15, 2026: 3,104,151 sharesJul 31, 2026: 3,404,687 sharesAug 14, 2026: 3,687,311 sharesAug 31, 2026: 4,203,221 sharesSep 15, 2026: 3,961,960 sharesSep 30, 2026: 3,484,067 sharesOct 15, 2026: 3,132,475 sharesOct 30, 2026: 2,997,710 shares
Short interest in ASND by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20263.00M−134.8K−4.3%600.8K4.99
Oct 15, 20263.13M−351.6K−10.1%755.2K4.15
Sep 30, 20263.48M−477.9K−12.1%937.2K3.72
Sep 15, 20263.96M−241.3K−5.7%808.1K4.90
Aug 31, 20264.20M+515.9K+14.0%442.6K9.50
Aug 14, 20263.69M+282.6K+8.3%589.6K6.25
Jul 31, 20263.40M+300.5K+9.7%472.5K7.21
Jul 15, 20263.10M−173.7K−5.3%552.9K5.61
Jun 30, 20263.28M+1.29M+65.0%1.30M2.52
Jun 15, 20261.99M+266.9K+15.5%576.4K3.45
May 29, 20261.72M−1.04K−0.1%555.5K3.10
May 15, 20261.72M−1.11M−39.2%623.4K2.76
Apr 30, 20262.83M−822.3K−22.5%929.8K3.05
Apr 15, 20263.65M−40.6K−1.1%658.9K5.55
Mar 31, 20263.70M−154.8K−4.0%390.9K9.45
Mar 13, 20263.85M−21.4K−0.6%766.8K5.02
Feb 27, 20263.87M+68.8K+1.8%638.1K6.07
Feb 13, 20263.80M+905.9K+31.3%848.7K4.48
Jan 30, 20262.90M−265.8K−8.4%698.3K4.15
Jan 15, 20263.16M−290.4K−8.4%656.0K4.82
Dec 31, 20253.45M+64.9K+1.9%581.5K5.94
Dec 15, 20253.39M+91.8K+2.8%848.3K3.99
Nov 28, 20253.30M+308.8K+10.3%534.3K6.17
Nov 14, 20252.99M−561.9K−15.8%629.6K4.75
Oct 31, 20253.55M+127.3K+3.7%389.9K9.10
Oct 15, 20253.42M+859.6K+33.6%468.5K7.30
Sep 30, 20252.56M+272.9K+11.9%406.9K6.30
Sep 15, 20252.29M−391.1K−14.6%394.6K5.80
Aug 29, 20252.68M+193.3K+7.8%426.5K6.28
Aug 15, 20252.49M−267.9K−9.7%622.4K4.00
Jul 31, 20252.76M+27.3K+1.0%452.0K6.10
Jul 15, 20252.73M+465.7K+20.6%446.4K6.11
Jun 30, 20252.26M−430.9K−16.0%405.9K5.57
Jun 13, 20252.69M−682.8K−20.2%467.6K5.76
May 30, 20253.38M−379.7K−10.1%361.9K9.33
May 15, 20253.76M−140.6K−3.6%612.8K6.13
Apr 30, 20253.90M−242.8K−5.9%523.3K7.45
Apr 15, 20254.14M−167.2K−3.9%595.2K6.95
Mar 31, 20254.31M−77.9K−1.8%406.0K10.61
Mar 14, 20254.38M+403.2K+10.1%471.7K9.29
Feb 28, 20253.98M+352.7K+9.7%497.2K8.01
Feb 14, 20253.63M+341.5K+10.4%592.8K6.12
Jan 31, 20253.29M+33.5K+1.0%429.3K7.66
Jan 15, 20253.25M−163.7K−4.8%446.9K7.28
Dec 31, 20243.42M−207.7K−5.7%350.1K9.76
Dec 13, 20243.62M−142.4K−3.8%367.8K9.85
Nov 29, 20243.77M+192.9K+5.4%492.1K7.66
Nov 15, 20243.57M+166.9K+4.9%541.6K6.60
Oct 31, 20243.41M+179.0K+5.6%304.0K11.21

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 ASND by settlement date
Settlement dateSharesPriceValue
Oct 13, 202622$227.00$4.99K
Oct 9, 202626$222.69$5.79K
Oct 8, 20261,201$228.41$274.3K
Sep 28, 20261,158$225.60$261.2K
Sep 25, 20261,158$230.70$267.2K
Sep 23, 202646$237.57$10.9K
Sep 21, 202677$236.72$18.2K
Sep 2, 2026974$260.25$253.5K
Aug 24, 2026301$253.29$76.2K
Aug 12, 20263$254.57$763.71
Jul 20, 202661$261.00$15.9K
Jul 16, 2026591$268.57$158.7K
Jul 14, 202610,013$265.22$2.66M
Jul 13, 20262,878$270.45$778.4K
Jul 10, 20262,605$275.43$717.5K
Jul 8, 202615,001$266.97$4.00M
Jun 30, 20261,058$263.70$279.0K
Jun 29, 202614,102$260.75$3.68M
Jun 18, 2026352$231.15$81.4K
Jun 15, 2026519$218.06$113.2K
Jun 12, 202679$215.60$17.0K
May 26, 202610$247.05$2.47K
May 22, 20261,457$247.51$360.6K
May 21, 20262,173$241.34$524.4K
May 18, 202612,587$240.50$3.03M
May 15, 20261,549$245.49$380.3K
May 13, 20269,023$237.65$2.14M
May 8, 2026174$246.14$42.8K
May 7, 2026181$235.90$42.7K
May 6, 202616,215$225.28$3.65M

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 ASND by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 2026168,2538,576346,62548.5%
Nov 9, 2026161,2505,712275,21658.6%
Nov 6, 2026131,8352309,46042.6%
Nov 5, 2026168,946341249,04667.8%
Nov 4, 2026158,5792334,38447.4%
Nov 3, 202671,7860235,45730.5%
Nov 2, 2026119,037112233,98350.9%
Oct 30, 2026102,6970156,24465.7%
Oct 29, 2026122,5140184,74266.3%
Oct 28, 2026154,6950357,02343.3%
Oct 27, 2026158,0010291,65654.2%
Oct 26, 2026172,8420258,70066.8%
Oct 23, 2026215,2190283,10676.0%
Oct 22, 2026172,9470213,27881.1%
Oct 21, 2026170,9920291,59058.6%
Oct 20, 202688,1490183,54048.0%
Oct 19, 2026288,8050667,43443.3%
Oct 16, 2026112,4168,879244,23046.0%
Oct 15, 202670,6680173,94840.6%
Oct 14, 2026121,1610349,73834.6%
Oct 13, 202689,3200184,08948.5%
Oct 12, 202676,6940188,87240.6%
Oct 9, 2026199,4840383,40552.0%
Oct 8, 2026258,1582350,19473.7%
Oct 7, 2026168,8570333,76350.6%
Oct 6, 2026407,65710,498519,80278.4%
Oct 5, 2026179,79218272,96065.9%
Oct 2, 2026129,59110307,11042.2%
Oct 1, 2026179,4570350,37651.2%
Sep 30, 2026173,2820481,13336.0%

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 ASND
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T11,443,69426,378317,8788,03482.0%
Oct 12, 2026T1958,04424,092324,3577,06074.7%
Oct 5, 2026T11,559,74433,524578,6468,17772.9%
Sep 28, 2026T11,413,89530,056341,2349,11880.6%
Sep 21, 2026T11,934,71233,562486,8529,80579.9%
Sep 14, 2026T12,486,64944,187909,12913,33373.2%
Sep 7, 2026T1665,54924,116298,6528,92069.0%
Aug 31, 2026T11,289,86631,040753,41716,61763.1%
Aug 24, 2026T1480,94424,695206,9755,71869.9%
Aug 17, 2026T1866,16325,608340,4846,91771.8%
Aug 10, 2026T11,139,20329,103317,5857,25078.2%
Aug 3, 2026T1923,09627,242489,7145,37365.3%