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Trupanion, Inc.

TRUP
Exchange
Nasdaq
Industry
Hospital & Medical Service Plans
SEC CIK
0001371285

In the last 90 days, Trupanion, Inc. insiders filed 0 open-market purchases and 10 sales; 201 institutions reported holding it in 13F filings for Q2 2026, worth $836.4M 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
3.93M
Shares, settlement Oct 30, 2026
Change
+249.5K
+6.8% vs. Oct 15, 2026
Days to cover
11.22
Short interest ÷ average daily volume
Average daily volume
349.9K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 8,642,742 sharesNov 15, 2024: 8,369,025 sharesNov 29, 2024: 8,638,995 sharesDec 13, 2024: 8,617,123 sharesDec 31, 2024: 8,735,884 sharesJan 15, 2025: 8,900,871 sharesJan 31, 2025: 9,040,738 sharesFeb 14, 2025: 8,998,602 sharesFeb 28, 2025: 8,250,924 sharesMar 14, 2025: 8,164,773 sharesMar 31, 2025: 8,158,381 sharesApr 15, 2025: 8,363,682 sharesApr 30, 2025: 8,670,865 sharesMay 15, 2025: 8,696,935 sharesMay 30, 2025: 8,177,338 sharesJun 13, 2025: 7,876,956 sharesJun 30, 2025: 7,529,276 sharesJul 15, 2025: 7,472,014 sharesJul 31, 2025: 7,138,076 sharesAug 15, 2025: 6,941,150 sharesAug 29, 2025: 7,063,886 sharesSep 15, 2025: 7,070,344 sharesSep 30, 2025: 6,807,000 sharesOct 15, 2025: 6,255,487 sharesOct 31, 2025: 5,632,131 sharesNov 14, 2025: 5,252,887 sharesNov 28, 2025: 5,467,536 sharesDec 15, 2025: 4,850,373 sharesDec 31, 2025: 4,907,200 sharesJan 15, 2026: 4,679,728 sharesJan 30, 2026: 4,345,493 sharesFeb 13, 2026: 4,039,231 sharesFeb 27, 2026: 3,931,119 sharesMar 13, 2026: 3,612,335 sharesMar 31, 2026: 3,536,366 sharesApr 15, 2026: 3,601,858 sharesApr 30, 2026: 3,682,369 sharesMay 15, 2026: 3,733,194 sharesMay 29, 2026: 3,888,676 sharesJun 15, 2026: 3,803,168 sharesJun 30, 2026: 3,763,430 sharesJul 15, 2026: 3,707,932 sharesJul 31, 2026: 3,718,120 sharesAug 14, 2026: 3,969,980 sharesAug 31, 2026: 3,993,141 sharesSep 15, 2026: 4,059,198 sharesSep 30, 2026: 3,880,541 sharesOct 15, 2026: 3,676,788 sharesOct 30, 2026: 3,926,253 shares
Short interest in TRUP by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20263.93M+249.5K+6.8%349.9K11.22
Oct 15, 20263.68M−203.8K−5.3%394.7K9.31
Sep 30, 20263.88M−178.7K−4.4%478.0K8.12
Sep 15, 20264.06M+66.1K+1.7%407.7K9.96
Aug 31, 20263.99M+23.2K+0.6%449.1K8.89
Aug 14, 20263.97M+251.9K+6.8%792.6K5.01
Jul 31, 20263.72M+10.2K+0.3%318.0K11.69
Jul 15, 20263.71M−55.5K−1.5%323.4K11.47
Jun 30, 20263.76M−39.7K−1.0%435.3K8.65
Jun 15, 20263.80M−85.5K−2.2%362.4K10.49
May 29, 20263.89M+155.5K+4.2%401.7K9.68
May 15, 20263.73M+50.8K+1.4%419.2K8.91
Apr 30, 20263.68M+80.5K+2.2%370.3K9.95
Apr 15, 20263.60M+65.5K+1.9%332.3K10.84
Mar 31, 20263.54M−76.0K−2.1%406.6K8.70
Mar 13, 20263.61M−318.8K−8.1%399.5K9.04
Feb 27, 20263.93M−108.1K−2.7%587.2K6.70
Feb 13, 20264.04M−306.3K−7.1%661.7K6.10
Jan 30, 20264.35M−334.2K−7.1%350.4K12.40
Jan 15, 20264.68M−227.5K−4.6%374.6K12.49
Dec 31, 20254.91M+56.8K+1.2%341.7K14.36
Dec 15, 20254.85M−617.2K−11.3%431.7K11.24
Nov 28, 20255.47M+214.6K+4.1%423.5K12.91
Nov 14, 20255.25M−379.2K−6.7%573.4K9.16
Oct 31, 20255.63M−623.4K−10.0%388.6K14.49
Oct 15, 20256.26M−551.5K−8.1%353.8K17.68
Sep 30, 20256.81M−263.3K−3.7%441.8K15.41
Sep 15, 20257.07M+6.46K+0.1%396.6K17.83
Aug 29, 20257.06M+122.7K+1.8%477.6K14.79
Aug 15, 20256.94M−196.9K−2.8%659.9K10.52
Jul 31, 20257.14M−333.9K−4.5%424.6K16.81
Jul 15, 20257.47M−57.3K−0.8%585.0K12.77
Jun 30, 20257.53M−347.7K−4.4%593.8K12.68
Jun 13, 20257.88M−300.4K−3.7%473.8K16.63
May 30, 20258.18M−519.6K−6.0%494.1K16.55
May 15, 20258.70M+26.1K+0.3%664.5K13.09
Apr 30, 20258.67M+307.2K+3.7%525.8K16.49
Apr 15, 20258.36M+205.3K+2.5%722.8K11.57
Mar 31, 20258.16M−6.39K−0.1%460.9K17.70
Mar 14, 20258.16M−86.2K−1.0%796.1K10.26
Feb 28, 20258.25M−747.7K−8.3%1.15M7.16
Feb 14, 20259.00M−42.1K−0.5%424.0K21.22
Jan 31, 20259.04M+139.9K+1.6%411.2K21.99
Jan 15, 20258.90M+165.0K+1.9%668.1K13.32
Dec 31, 20248.74M+118.8K+1.4%494.4K17.67
Dec 13, 20248.62M−21.9K−0.3%535.7K16.09
Nov 29, 20248.64M+270.0K+3.2%488.5K17.69
Nov 15, 20248.37M−273.7K−3.2%711.3K11.77
Oct 31, 20248.64M−1.24M−12.6%659.0K13.11

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 TRUP by settlement date
Settlement dateSharesPriceValue
Oct 13, 2026294$26.29$7.73K
Sep 18, 20261,082$25.63$27.7K
Sep 16, 2026165$26.32$4.34K
Sep 15, 202691$26.15$2.38K
Sep 8, 20263,059$27.80$85.0K
Aug 27, 2026306$30.19$9.24K
Aug 26, 20265,889$31.84$187.5K
Aug 24, 2026800$31.10$24.9K
Aug 20, 20269,636$31.10$299.7K
Aug 19, 202610,710$29.97$321.0K
Aug 17, 2026840$30.60$25.7K
Aug 12, 202610$30.51$305.1
Aug 5, 2026531$24.65$13.1K
Aug 4, 202694$24.92$2.34K
Aug 3, 2026590$24.49$14.4K
Jul 22, 2026149$25.85$3.85K
Jul 20, 20261,872$26.70$50.0K
Jul 14, 202651$27.37$1.40K
Jul 8, 202630$27.05$811.5
Jun 25, 20261$23.89$23.89
Jun 22, 2026500$23.54$11.8K
Jun 15, 202638$23.65$898.7
Jun 11, 20262$23.38$46.76
Jun 3, 202629$22.13$641.77
Jun 2, 2026591$22.26$13.2K
Jun 1, 2026238$21.82$5.19K
May 22, 2026144$21.85$3.15K
May 18, 2026302$22.33$6.74K
May 13, 20267,883$23.78$187.5K
May 5, 202667$26.36$1.77K

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 TRUP by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 13, 202648,4691,00082,92158.5%
Nov 12, 202643,6611,35079,98254.6%
Nov 11, 202656,3162,50098,55657.1%
Nov 10, 202685,8194,256126,27668.0%
Nov 9, 2026134,2272,000252,92853.1%
Nov 6, 2026256,3890363,13870.6%
Nov 5, 2026184,9930277,33266.7%
Nov 4, 2026123,0783240,26151.2%
Nov 3, 202695,2760151,83262.8%
Nov 2, 202699,586927172,90257.6%
Oct 30, 202633,694075,48544.6%
Oct 29, 202651,128094,89753.9%
Oct 28, 202647,980076,39162.8%
Oct 27, 2026102,8080150,45668.3%
Oct 26, 202652,148088,36359.0%
Oct 23, 202634,707080,42543.2%
Oct 22, 202680,01229121,84165.7%
Oct 21, 202648,433086,28656.1%
Oct 20, 202639,378073,28553.7%
Oct 19, 2026236,6270328,70272.0%
Oct 16, 202670,833500112,26263.1%
Oct 15, 202683,9751131,18664.0%
Oct 14, 202665,3323119,87854.5%
Oct 13, 202656,549087,23964.8%
Oct 12, 202685,1610130,27465.4%
Oct 9, 202646,406082,55356.2%
Oct 8, 202663,25430144,48343.8%
Oct 7, 202682,032900141,76557.9%
Oct 6, 202669,1170109,35863.2%
Oct 5, 202695,7490152,54062.8%

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 TRUP
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T2512,41319,807413,9783,24555.3%
Sep 28, 2026T2550,48221,438437,4423,27555.7%
Sep 21, 2026T2614,23022,463301,3703,61667.1%
Sep 14, 2026T2544,11724,416473,8863,35853.4%
Sep 7, 2026T2439,07123,863274,3792,61961.5%
Aug 31, 2026T2443,23622,320578,6333,22543.4%
Aug 24, 2026T2541,83022,704182,7353,81274.8%
Aug 17, 2026T2486,16419,509206,0703,80570.2%
Aug 10, 2026T21,344,23426,493782,6984,10263.2%
Aug 3, 2026T21,318,27327,464237,3423,86584.7%
Jul 27, 2026T2467,67617,913150,3582,70475.7%
Jul 20, 2026T2422,24418,515149,5922,47173.8%