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Legend Biotech Corp

LEGN
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001801198

In the last 90 days, Legend Biotech Corp insiders filed 0 open-market purchases and 2 sales; 219 institutions reported holding it in 13F filings for Q2 2026, worth $2.98B in total; HHLR Advisors (Hillhouse) is the only superinvestor holding 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
11.9M
Shares, settlement Oct 30, 2026
Change
−2.00M
−14.4% vs. Oct 15, 2026
Days to cover
6.29
Short interest ÷ average daily volume
Average daily volume
1.89M
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 15,858,425 sharesNov 15, 2024: 22,905,492 sharesNov 29, 2024: 23,805,759 sharesDec 13, 2024: 22,949,167 sharesDec 31, 2024: 20,898,198 sharesJan 15, 2025: 13,106,510 sharesJan 31, 2025: 12,632,712 sharesFeb 14, 2025: 13,344,457 sharesFeb 28, 2025: 13,101,840 sharesMar 14, 2025: 11,387,847 sharesMar 31, 2025: 10,919,574 sharesApr 15, 2025: 10,034,500 sharesApr 30, 2025: 6,737,444 sharesMay 15, 2025: 7,580,437 sharesMay 30, 2025: 12,836,053 sharesJun 13, 2025: 14,367,980 sharesJun 30, 2025: 10,443,597 sharesJul 15, 2025: 8,387,958 sharesJul 31, 2025: 7,822,995 sharesAug 15, 2025: 7,586,207 sharesAug 29, 2025: 7,859,738 sharesSep 15, 2025: 9,686,681 sharesSep 30, 2025: 9,351,983 sharesOct 15, 2025: 11,404,545 sharesOct 31, 2025: 10,772,670 sharesNov 14, 2025: 10,945,914 sharesNov 28, 2025: 14,235,758 sharesDec 15, 2025: 14,410,603 sharesDec 31, 2025: 17,773,269 sharesJan 15, 2026: 19,403,247 sharesJan 30, 2026: 21,420,092 sharesFeb 13, 2026: 21,868,248 sharesFeb 27, 2026: 20,045,763 sharesMar 13, 2026: 17,985,159 sharesMar 31, 2026: 18,702,143 sharesApr 15, 2026: 19,215,447 sharesApr 30, 2026: 16,995,758 sharesMay 15, 2026: 14,434,000 sharesMay 29, 2026: 12,569,040 sharesJun 15, 2026: 12,987,902 sharesJun 30, 2026: 13,112,211 sharesJul 15, 2026: 14,076,444 sharesJul 31, 2026: 18,114,668 sharesAug 14, 2026: 17,824,859 sharesAug 31, 2026: 16,476,276 sharesSep 15, 2026: 14,637,187 sharesSep 30, 2026: 16,387,267 sharesOct 15, 2026: 13,904,472 sharesOct 30, 2026: 11,899,858 shares
Short interest in LEGN by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 202611.9M−2.00M−14.4%1.89M6.29
Oct 15, 202613.9M−2.48M−15.2%2.07M6.70
Sep 30, 202616.4M+1.75M+12.0%2.31M7.09
Sep 15, 202614.6M−1.84M−11.2%2.07M7.09
Aug 31, 202616.5M−1.35M−7.6%1.82M9.03
Aug 14, 202617.8M−289.8K−1.6%2.47M7.22
Jul 31, 202618.1M+4.04M+28.7%3.00M6.04
Jul 15, 202614.1M+964.2K+7.4%1.92M7.34
Jun 30, 202613.1M+124.3K+1.0%3.14M4.17
Jun 15, 202613.0M+418.9K+3.3%3.63M3.58
May 29, 202612.6M−1.86M−12.9%1.61M7.82
May 15, 202614.4M−2.56M−15.1%3.05M4.74
Apr 30, 202617.0M−2.22M−11.6%2.72M6.24
Apr 15, 202619.2M+513.3K+2.7%1.76M10.94
Mar 31, 202618.7M+717.0K+4.0%1.20M15.62
Mar 13, 202618.0M−2.06M−10.3%1.58M11.39
Feb 27, 202620.0M−1.82M−8.3%1.85M10.83
Feb 13, 202621.9M+448.2K+2.1%2.54M8.60
Jan 30, 202621.4M+2.02M+10.4%3.62M5.92
Jan 15, 202619.4M+1.63M+9.2%2.53M7.67
Dec 31, 202517.8M+3.36M+23.3%1.70M10.48
Dec 15, 202514.4M+174.8K+1.2%2.86M5.04
Nov 28, 202514.2M+3.29M+30.1%2.33M6.10
Nov 14, 202510.9M+173.2K+1.6%1.40M7.84
Oct 31, 202510.8M−631.9K−5.5%1.15M9.33
Oct 15, 202511.4M+2.05M+22.0%1.70M6.71
Sep 30, 20259.35M−334.7K−3.5%1.04M8.97
Sep 15, 20259.69M+1.83M+23.2%1.26M7.69
Aug 29, 20257.86M+273.5K+3.6%919.3K8.55
Aug 15, 20257.59M−236.8K−3.0%1.05M7.21
Jul 31, 20257.82M−565.0K−6.7%1.46M5.37
Jul 15, 20258.39M−2.06M−19.7%1.32M6.35
Jun 30, 202510.4M−3.92M−27.3%1.65M6.35
Jun 13, 202514.4M+1.53M+11.9%2.60M5.52
May 30, 202512.8M+5.26M+69.3%1.62M7.91
May 15, 20257.58M+843.0K+12.5%1.94M3.91
Apr 30, 20256.74M−3.30M−32.9%1.24M5.44
Apr 15, 202510.0M−885.1K−8.1%1.82M5.53
Mar 31, 202510.9M−468.3K−4.1%877.7K12.44
Mar 14, 202511.4M−1.71M−13.1%1.28M8.87
Feb 28, 202513.1M−242.6K−1.8%1.35M9.74
Feb 14, 202513.3M+711.7K+5.6%1.03M12.97
Jan 31, 202512.6M−473.8K−3.6%1.25M10.07
Jan 15, 202513.1M−7.79M−37.3%1.47M8.94
Dec 31, 202420.9M−2.05M−8.9%1.31M15.93
Dec 13, 202422.9M−856.6K−3.6%1.33M17.27
Nov 29, 202423.8M+900.3K+3.9%1.54M15.43
Nov 15, 202422.9M+7.05M+44.4%1.88M12.19
Oct 31, 202415.9M+3.90M+32.7%1.56M10.15

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 LEGN by settlement date
Settlement dateSharesPriceValue
Oct 14, 202615,625$17.88$279.4K
Sep 23, 202613,625$18.64$254.0K
Aug 31, 202618$19.88$357.84
Aug 14, 2026947$20.27$19.2K
Aug 13, 2026917$20.65$18.9K
Aug 12, 202638,518$21.83$840.8K
Aug 11, 202612,902$20.66$266.6K
Aug 10, 20265,778$20.75$119.9K
Aug 7, 20268$19.28$154.24
Aug 4, 20266,080$19.01$115.6K
Jul 24, 20264,583$23.53$107.8K
Jul 16, 20261,530$23.04$35.3K
Jul 15, 2026804$25.67$20.6K
Jul 14, 2026139$25.75$3.58K
Jul 9, 202658$27.87$1.62K
Jul 6, 20265$29.91$149.55
Jul 2, 202690$29.89$2.69K
Jun 30, 2026112,550$29.39$3.31M
Jun 25, 2026552$29.38$16.2K
Jun 22, 2026234,466$27.93$6.55M
Jun 15, 2026818$35.87$29.3K
Jun 9, 2026111$31.52$3.50K
Jun 5, 20261$34.20$34.2
Jun 4, 202687,259$35.98$3.14M
May 21, 202637$28.12$1.04K
May 20, 20265,317$26.94$143.2K
May 19, 20261,100$26.98$29.7K
May 18, 20261,527$27.55$42.1K
May 15, 202676$28.60$2.17K
May 11, 202685$28.12$2.39K

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 LEGN by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 11, 2026848,73042,7172,018,32342.1%
Nov 10, 20261,513,26243,1072,474,35361.2%
Nov 9, 2026443,3920795,64455.7%
Nov 6, 2026388,651100579,63767.1%
Nov 5, 2026688,47801,141,47960.3%
Nov 4, 2026787,86601,367,60957.6%
Nov 3, 2026214,6060389,40955.1%
Nov 2, 2026283,9400584,07748.6%
Oct 30, 2026598,00401,096,71654.5%
Oct 29, 2026580,74201,464,18039.7%
Oct 28, 2026606,3638,8161,019,45559.5%
Oct 27, 2026640,722100933,84068.6%
Oct 26, 2026592,6551,4031,063,35055.7%
Oct 23, 2026187,0370331,65556.4%
Oct 22, 2026315,031163530,97559.3%
Oct 21, 2026316,37776599,16352.8%
Oct 20, 2026195,656600416,70447.0%
Oct 19, 2026441,7710677,69965.2%
Oct 16, 2026518,3882,5241,008,36751.4%
Oct 15, 2026298,70180637,97346.8%
Oct 14, 20261,097,8323,2301,622,44867.7%
Oct 13, 2026539,223181,100,79849.0%
Oct 12, 2026741,95901,182,22162.8%
Oct 9, 2026390,66675662,73158.9%
Oct 8, 2026478,888586905,84852.9%
Oct 7, 2026330,6660464,85371.1%
Oct 6, 2026362,6760529,64868.5%
Oct 5, 2026417,9601622,25967.2%
Oct 2, 2026520,0675,000833,08062.4%
Oct 1, 2026613,9440817,40375.1%

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 LEGN
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T22,387,27930,9391,024,5935,18670.0%
Sep 28, 2026T22,538,34337,3031,365,1747,21765.0%
Sep 21, 2026T23,163,63349,7631,395,0338,12869.4%
Sep 14, 2026T23,466,78744,3825,047,26510,27740.7%
Sep 7, 2026T22,249,95833,6753,545,8456,38238.8%
Aug 31, 2026T22,135,90226,4711,058,9565,51866.9%
Aug 24, 2026T21,589,37423,8691,525,5057,56451.0%
Aug 17, 2026T22,923,05641,7153,005,00912,14749.3%
Aug 10, 2026T23,392,74952,2114,063,7128,30745.5%
Aug 3, 2026T22,751,71945,3503,294,4967,13745.5%
Jul 27, 2026T27,063,01868,6684,824,63311,15059.4%
Jul 20, 2026T22,796,25740,5332,319,7115,08954.7%