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United Therapeutics Corp

UTHR
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001082554

In the last 90 days, United Therapeutics Corp insiders filed 0 open-market purchases and 72 sales; 889 institutions reported holding it in 13F filings for Q2 2026, worth $22.6B 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
1.84M
Shares, settlement Oct 30, 2026
Change
−620.1K
−25.2% vs. Oct 15, 2026
Days to cover
3.45
Short interest ÷ average daily volume
Average daily volume
532.2K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 2,302,911 sharesNov 15, 2024: 2,214,144 sharesNov 29, 2024: 2,081,841 sharesDec 13, 2024: 2,244,567 sharesDec 31, 2024: 1,921,334 sharesJan 15, 2025: 1,975,217 sharesJan 31, 2025: 2,014,459 sharesFeb 14, 2025: 2,065,951 sharesFeb 28, 2025: 2,463,910 sharesMar 14, 2025: 1,826,411 sharesMar 31, 2025: 1,713,218 sharesApr 15, 2025: 1,660,024 sharesApr 30, 2025: 1,966,969 sharesMay 15, 2025: 2,095,786 sharesMay 30, 2025: 1,875,384 sharesJun 13, 2025: 1,614,964 sharesJun 30, 2025: 1,565,617 sharesJul 15, 2025: 1,600,574 sharesJul 31, 2025: 1,569,481 sharesAug 15, 2025: 2,855,183 sharesAug 29, 2025: 2,700,395 sharesSep 15, 2025: 2,783,971 sharesSep 30, 2025: 2,194,122 sharesOct 15, 2025: 2,033,908 sharesOct 31, 2025: 1,683,024 sharesNov 14, 2025: 1,650,438 sharesNov 28, 2025: 1,768,673 sharesDec 15, 2025: 2,100,836 sharesDec 31, 2025: 1,826,317 sharesJan 15, 2026: 1,784,531 sharesJan 30, 2026: 1,728,911 sharesFeb 13, 2026: 1,842,287 sharesFeb 27, 2026: 1,732,175 sharesMar 13, 2026: 2,844,985 sharesMar 31, 2026: 2,837,307 sharesApr 15, 2026: 2,703,199 sharesApr 30, 2026: 2,449,350 sharesMay 15, 2026: 2,303,877 sharesMay 29, 2026: 2,191,540 sharesJun 15, 2026: 2,052,888 sharesJun 30, 2026: 2,117,787 sharesJul 15, 2026: 2,088,748 sharesJul 31, 2026: 2,322,601 sharesAug 14, 2026: 2,112,367 sharesAug 31, 2026: 2,059,685 sharesSep 15, 2026: 2,800,470 sharesSep 30, 2026: 3,596,948 sharesOct 15, 2026: 2,457,723 sharesOct 30, 2026: 1,837,654 shares
Short interest in UTHR by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20261.84M−620.1K−25.2%532.2K3.45
Oct 15, 20262.46M−1.14M−31.7%957.7K2.57
Sep 30, 20263.60M+796.5K+28.4%995.6K3.61
Sep 15, 20262.80M+740.8K+36.0%717.3K3.90
Aug 31, 20262.06M−52.7K−2.5%428.3K4.81
Aug 14, 20262.11M−210.2K−9.1%599.8K3.52
Jul 31, 20262.32M+233.9K+11.2%420.4K5.52
Jul 15, 20262.09M−29.0K−1.4%378.6K5.52
Jun 30, 20262.12M+64.9K+3.2%727.5K2.91
Jun 15, 20262.05M−138.7K−6.3%442.8K4.64
May 29, 20262.19M−112.3K−4.9%484.9K4.52
May 15, 20262.30M−145.5K−5.9%463.6K4.97
Apr 30, 20262.45M−253.8K−9.4%377.5K6.49
Apr 15, 20262.70M−134.1K−4.7%559.4K4.83
Mar 31, 20262.84M−7.68K−0.3%689.6K4.11
Mar 13, 20262.84M+1.11M+64.2%695.9K4.09
Feb 27, 20261.73M−110.1K−6.0%389.8K4.44
Feb 13, 20261.84M+113.4K+6.6%302.4K6.09
Jan 30, 20261.73M−55.6K−3.1%314.5K5.50
Jan 15, 20261.78M−41.8K−2.3%384.4K4.64
Dec 31, 20251.83M−274.5K−13.1%488.8K3.74
Dec 15, 20252.10M+332.2K+18.8%412.7K5.09
Nov 28, 20251.77M+118.2K+7.2%437.5K4.04
Nov 14, 20251.65M−32.6K−1.9%453.6K3.64
Oct 31, 20251.68M−350.9K−17.3%644.3K2.61
Oct 15, 20252.03M−160.2K−7.3%667.1K3.05
Sep 30, 20252.19M−589.8K−21.2%971.1K2.26
Sep 15, 20252.78M+83.6K+3.1%1.12M2.50
Aug 29, 20252.70M−154.8K−5.4%669.8K4.03
Aug 15, 20252.86M+1.29M+81.9%860.8K3.32
Jul 31, 20251.57M−31.1K−1.9%462.2K3.40
Jul 15, 20251.60M+35.0K+2.2%395.2K4.05
Jun 30, 20251.57M−49.3K−3.1%616.3K2.54
Jun 13, 20251.61M−260.4K−13.9%845.4K1.91
May 30, 20251.88M−220.4K−10.5%468.2K4.01
May 15, 20252.10M+128.8K+6.6%471.5K4.44
Apr 30, 20251.97M+306.9K+18.5%382.1K5.15
Apr 15, 20251.66M−53.2K−3.1%541.9K3.06
Mar 31, 20251.71M−113.2K−6.2%452.3K3.79
Mar 14, 20251.83M−637.5K−25.9%551.6K3.31
Feb 28, 20252.46M+398.0K+19.3%752.0K3.28
Feb 14, 20252.07M+51.5K+2.6%377.8K5.47
Jan 31, 20252.01M+39.2K+2.0%321.5K6.27
Jan 15, 20251.98M+53.9K+2.8%261.2K7.56
Dec 31, 20241.92M−323.2K−14.4%344.9K5.57
Dec 13, 20242.24M+162.7K+7.8%238.0K9.43
Nov 29, 20242.08M−132.3K−6.0%290.2K7.17
Nov 15, 20242.21M−88.8K−3.9%390.7K5.67
Oct 31, 20242.30M+107.9K+4.9%380.2K6.06

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 UTHR by settlement date
Settlement dateSharesPriceValue
Oct 9, 202655$532.78$29.3K
Oct 2, 202632$571.38$18.3K
Sep 18, 20266,915$497.27$3.44M
Aug 31, 202624$515.46$12.4K
Aug 24, 2026468$513.12$240.1K
Aug 21, 20268,582$521.00$4.47M
Aug 19, 2026100$518.27$51.8K
Aug 7, 202613$532.94$6.93K
Jul 16, 202622$531.79$11.7K
Jul 9, 20264,892$554.34$2.71M
Jul 7, 2026144$547.25$78.8K
Jun 30, 20263,068$544.92$1.67M
Jun 18, 2026844$551.47$465.4K
Jun 17, 2026684$548.27$375.0K
Jun 16, 20268,926$549.57$4.91M
Jun 15, 202648$545.96$26.2K
Jun 8, 2026987$549.87$542.7K
Jun 4, 2026614$549.47$337.4K
May 28, 20262$570.75$1.14K
May 19, 20269,277$566.99$5.26M
Apr 21, 20268$573.44$4.59K
Apr 20, 20261,400$588.38$823.7K
Apr 10, 202610,232$574.77$5.88M
Apr 6, 202630$564.81$16.9K
Mar 19, 20263$530.35$1.59K
Mar 13, 20262$532.82$1.07K
Mar 10, 202610$529.17$5.29K
Feb 27, 2026321$503.60$161.7K
Feb 26, 20261,132$535.10$605.7K
Feb 25, 20261,791$473.43$847.9K

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 UTHR by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 202681,6270165,80349.2%
Nov 9, 2026125,5702,515231,72454.2%
Nov 6, 2026109,9300190,71957.6%
Nov 5, 2026116,554544277,23742.0%
Nov 4, 2026150,3751381,61039.4%
Nov 3, 202693,2880262,16235.6%
Nov 2, 2026101,450251178,27856.9%
Oct 30, 2026141,4551,845207,40668.2%
Oct 29, 202692,0960149,14161.8%
Oct 28, 202671,5370151,06747.4%
Oct 27, 202681,4230190,39942.8%
Oct 26, 2026163,7620277,06159.1%
Oct 23, 2026132,8560189,92370.0%
Oct 22, 2026194,870265263,61373.9%
Oct 21, 2026115,7260144,68280.0%
Oct 20, 2026126,8520171,13674.1%
Oct 19, 2026155,6800195,82579.5%
Oct 16, 2026189,4280272,31369.6%
Oct 15, 2026136,084560218,23862.4%
Oct 14, 2026206,6150340,26560.7%
Oct 13, 202689,648746132,78967.5%
Oct 12, 2026122,2850150,02581.5%
Oct 9, 2026184,4450238,90877.2%
Oct 8, 2026225,8630334,63467.5%
Oct 7, 2026209,4340274,35276.3%
Oct 6, 2026214,6730270,75779.3%
Oct 5, 2026229,872622279,14782.3%
Oct 2, 2026269,3260394,81768.2%
Oct 1, 2026527,22589723,23672.9%
Sep 30, 20261,077,7343,5221,558,77069.1%

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 UTHR
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T1808,27232,998638,5479,49155.9%
Oct 12, 2026T1893,27735,880826,56910,30551.9%
Oct 5, 2026T11,240,91342,2831,656,3099,27542.8%
Sep 28, 2026T12,461,14064,2871,051,28920,43470.1%
Sep 21, 2026T1691,60132,4151,389,9329,41033.2%
Sep 14, 2026T1655,39532,6662,638,4729,01419.9%
Sep 7, 2026T1566,28129,425649,7098,04346.6%
Aug 31, 2026T1777,14934,260709,03210,52752.3%
Aug 24, 2026T1466,30926,656798,4778,51836.9%
Aug 17, 2026T1638,86432,971260,26411,15971.1%
Aug 10, 2026T1582,49332,573474,86413,77055.1%
Aug 3, 2026T11,171,82442,5921,034,53210,94453.1%