United Therapeutics (UTHR)

As of 15 September 2026, short interest in UTHR is 2,800,470 shares, up 688,103 shares over the last month. Over the last 48 readings it ranged from 1,565,617 shares (30 June 2025) to 2,855,183 shares (15 August 2025). The latest reading sits at the top of that range. At the reported average volume of 717K shares a day that is 3.9 days to cover.

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As of 8 October 2026, the short share of UTHR volume is 67.5%, down 5.4 points over the last five sessions. Over the last 30 readings it ranged from 33.5% (31 August 2026) to 82.3% (5 October 2026). The latest reading is 7.8 points above the 30-session average of 59.7%, on 335K shares reported.

As of 31 August 2026, the fails-to-deliver balance in UTHR is 24 shares, down 444 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (13 March 2026) to 16,716 shares (3 February 2026). The latest reading sits at the bottom of that range.

Insiders at UTHR reported 745 open-market sells worth $327.5M in the last 90 days and no open-market buys. Latest filing: ROTHBLATT MARTINE A (Chairperson & CEO) on 2026-10-07.

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.

50 Form 144 notices on file for UTHR worth $1.15B at the prices reported; 10 in the last 90 days worth $344.4M. Latest: PAUL MAHON filed on 2026-10-01 to sell 8,300 shares ($4.7M) from 2026-10-01.

2 holders report 5% or more of UTHR in their latest filing, all on Schedule 13G (passive). The largest reported stake is ROTHBLATT MARTINE A at 5.3% of the class (2,333,721 shares), filed 2026-08-14 for an event on 2026-06-30.

8 of the 30 tracked managers held UTHR at their latest 13F, $1.80B in total at quarter-end prices. Renaissance Technologies is the largest at $925.8M (1.3% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 5 cut.

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.

In Q2 FY 2026 (quarter ended 2026-06-30) United Therapeutics reported revenue of $783.3M, down 1.9% from the same quarter a year earlier, and net income of $333.0M (7.27 diluted EPS). In FY 2025 it generated $1.56B of operating cash flow and spent $1.00B on buybacks.

Quarterly, last 8 quarters

Fiscal years, with buybacks and dividends

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-07-29 from the cover page.