XOOMAR

THOR INDUSTRIES INC (THO)

Every FINRA and SEC series the site collects for THOR INDUSTRIES INC: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on NYSE.

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5.0M

Short interest

settlement 2026-08-31

10.0

Days to cover

+0.3% vs prior

56.8%

Short share of volume

2026-09-17

4,171

Fails to deliver

settlement 2026-08-31

Wed 23 Sep

Next earnings

estimated; last year 2025-09-24

$0

Insider flow, 90 days

0 buys, 0 sells

As of 2026-09-17.

Short interest

FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSON

As of 31 August 2026, short interest in THO is 4,986,425 shares, down 221,055 shares over the last month. Over the last 48 readings it ranged from 2,313,568 shares (31 December 2025) to 5,244,241 shares (15 July 2026). The latest reading sits at the top of that range. At the reported average volume of 501K shares a day that is 10.0 days to cover, elevated.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-314,986,425+0.3%500,7929.96
2026-08-144,972,352-4.5%563,4108.83
2026-07-315,207,480-0.7%609,8118.54
2026-07-155,244,241+0.9%708,8447.40
2026-06-305,197,871+16.6%879,2245.91
2026-06-154,459,146+0.3%1,036,0644.30
2026-05-294,444,715+6.7%640,1436.94
2026-05-154,164,522+11.9%655,8176.35
2026-04-303,721,260-7.9%643,1995.79
2026-04-154,041,417+27.6%776,6525.20
2026-03-313,167,109+21.5%914,1073.46
2026-03-132,605,771-5.8%884,6842.95
2026-02-272,766,948-0.8%729,0733.80
2026-02-132,790,668+5.6%508,0695.49
2026-01-302,642,458+0.3%442,7905.97
2026-01-152,633,338+13.8%583,6224.51
2025-12-312,313,568-22.3%404,8155.72
2025-12-152,977,644-11.1%983,1613.03
2025-11-283,349,847-2.6%575,2435.82
2025-11-143,437,773-3.4%370,1869.29
2025-10-313,558,479+0.1%550,7096.46
2025-10-153,554,913-5.7%581,6266.11
2025-09-303,769,332+11.8%1,013,7773.72
2025-09-153,373,069-10.3%657,8715.13

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 17 September 2026, the short share of THO volume is 56.8%, down 0.6 points over the last five sessions. Over the last 52 readings it ranged from 40.6% (17 August 2026) to 82.9% (10 August 2026). The latest reading is 7.8 points below the 30-session average of 64.6%, on 376K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-17214K376K56.8%700
2026-09-16253K532K47.6%112
2026-09-15204K336K60.8%8
2026-09-14225K304K74.1%52
2026-09-11182K247K73.6%0
2026-09-10189K330K57.4%254
2026-09-09178K257K69.2%0
2026-09-08276K387K71.3%452
2026-09-04144K213K67.8%1,643
2026-09-03201K310K64.8%875
2026-09-02128K225K56.9%31
2026-09-01145K202K71.8%0
2026-08-31150K202K74.1%350
2026-08-28154K219K70.4%400
2026-08-27144K227K63.1%51
2026-08-26198K275K71.9%264
2026-08-25124K190K65.3%300
2026-08-24110K173K63.8%35
2026-08-21113K181K62.5%4,681
2026-08-20173K222K77.7%0
2026-08-19155K210K74.2%56
2026-08-18121K188K64.6%128
2026-08-17135K332K40.6%0
2026-08-14113K218K52.0%0
2026-08-13211K423K49.9%87
2026-08-12182K317K57.3%1,228
2026-08-11151K225K67.1%0
2026-08-10205K248K82.9%0
2026-08-07115K169K68.2%535
2026-08-06108K177K60.8%2,518

Fails to deliver

SEC, by settlement date. JSON

As of 31 August 2026, the fails-to-deliver balance in THO is 4,171 shares, up 566 shares over the last settlement date. Over the last 52 readings it ranged from 7 shares (10 August 2026) to 50,686 shares (29 April 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-314,171$77.02$321K
2026-08-273,605$77.85$281K
2026-08-1432$78.88$3K
2026-08-1334$78.97$3K
2026-08-107$79.55$557
2026-08-059$79.94$719
2026-08-0477$77.51$6K
2026-07-31840$75.84$64K
2026-07-2782$76.66$6K
2026-07-2276$75.32$6K
2026-07-21829$75.79$63K
2026-07-2092$76.27$7K
2026-07-1741$77.43$3K
2026-07-16228$74.96$17K
2026-07-1550$72.31$4K
2026-07-1375$72.86$5K
2026-07-089$75.50$680
2026-07-0277$75.11$6K
2026-07-01163$75.16$12K
2026-06-3024,204$78.92$1.9M
2026-06-29518$78.74$41K
2026-06-2633$77.95$3K
2026-06-254,710$75.49$356K
2026-06-24400$72.85$29K
2026-06-15905$77.17$70K
2026-06-1211,567$76.73$888K
2026-06-08306$75.70$23K
2026-06-058,762$74.85$656K
2026-06-04817$79.76$65K
2026-06-01433$79.08$34K

Insider trades

SEC Form 4, newest first, 50 of 100 shown. JSON

No open-market insider trades were reported for THO in the last 90 days. The most recent filings are listed below; grants and option exercises carry a weaker signal than voluntary trades. Latest filing: ORTHWEIN PETER BUSCH (Director) on 2026-06-16.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-06-16ORTHWEIN PETER BUSCHDirectorGift500$0.00$071K
2026-06-16ORTHWEIN PETER BUSCHDirectorGift10K$0.00$0738K
2026-03-06ORTHWEIN PETER BUSCHn/aBuy3K$88.25$229K139K
2026-01-15WOELFER W. TODDSVP, CHIEF OPERATING OFFICERSell5K$114.84$524K104K
2025-12-26MARTIN ROBERT WCHIEF EXEC. AND PRES.Gift5K$0.00$0401K
2025-12-12WOELFER W. TODDSVP, CHIEF OPERATING OFFICERGift4K$0.00$0109K
2025-12-12WOELFER W. TODDSVP, CHIEF OPERATING OFFICERSell2K$103.15$178K113K
2025-10-08WOELFER W. TODDSVP, CHIEF OPERATING OFFICERTax withholding3K$104.83$349K114K
2025-10-08WOELFER W. TODDSVP, CHIEF OPERATING OFFICERGrant8K$0.00$0118K
2025-10-08WOELFER W. TODDSVP, CHIEF OPERATING OFFICERTax withholding6K$104.83$618K109K
2025-10-08ZUHL COLLEEN ASR. VP AND CHIEF FIN. OFFICERTax withholding3K$104.83$358K147K
2025-10-08ZUHL COLLEEN ASR. VP AND CHIEF FIN. OFFICERGrant8K$0.00$0151K
2025-10-08ZUHL COLLEEN ASR. VP AND CHIEF FIN. OFFICERTax withholding6K$104.83$619K142K
2025-10-08McDermott MicheleChief Human Resources OfficerTax withholding126$104.83$13K7K
2025-10-08MARTIN ROBERT WCHIEF EXEC. AND PRES.Tax withholding8K$104.83$787K405K
2025-10-08MARTIN ROBERT WCHIEF EXEC. AND PRES.Grant19K$0.00$0413K
2025-10-08MARTIN ROBERT WCHIEF EXEC. AND PRES.Tax withholding14K$104.83$1.5M394K
2025-10-08Gasper Trevor Q.SVP, GENERAL COUNSEL AND SEC.Tax withholding1K$104.83$129K25K
2025-10-08Gasper Trevor Q.SVP, GENERAL COUNSEL AND SEC.Grant3K$0.00$026K
2025-10-08Gasper Trevor Q.SVP, GENERAL COUNSEL AND SEC.Tax withholding2K$104.83$207K23K
2025-10-07WOELFER W. TODDSVP, CHIEF OPERATING OFFICERGrant16K$0.00$0115K
2025-10-07ZUHL COLLEEN ASR. VP AND CHIEF FIN. OFFICERGrant16K$0.00$0148K
2025-10-07ORTHWEIN PETER BUSCHn/aGrant1K$0.00$0748K
2025-10-07McDermott MicheleChief Human Resources OfficerGrant5K$0.00$07K
2025-10-07MARTIN ROBERT WCHIEF EXEC. AND PRES.Grant36K$0.00$0408K
2025-10-07Lorenger Jeffrey Dn/aGrant1K$0.00$03K
2025-10-07Kelley William J. JRn/aGrant1K$0.00$07K
2025-10-07KLEIN CHRISTOPHER Jn/aGrant1K$0.00$012K
2025-10-07Hurd Laureln/aGrant1K$0.00$07K
2025-10-07Huntington Amelian/aGrant1K$0.00$011K
2025-10-07HENNINGTON CHRISTINAn/aGrant1K$0.00$07K
2025-10-07Graves Andrew En/aGrant1K$0.00$025K
2025-10-07Gasper Trevor Q.SVP, GENERAL COUNSEL AND SEC.Grant8K$0.00$025K
2025-06-30ORTHWEIN PETER BUSCHn/aGift450$0.00$071K
2025-06-30ORTHWEIN PETER BUSCHn/aGift14K$0.00$0747K
2025-06-20ORTHWEIN PETER BUSCHn/aBuy3K$85.40$256K136K
2024-12-18MARTIN ROBERT WCHIEF EXEC. AND PRES.Gift1K$0.00$0377K
2024-12-18MARTIN ROBERT WCHIEF EXEC. AND PRES.Gift3K$0.00$0372K
2024-12-11ORTHWEIN PETER BUSCHDirectorGift300$0.00$01.1M
2024-12-10WOELFER W. TODDSVP, CHIEF OPERATING OFFICERGift5K$0.00$099K
2024-10-16ZUHL COLLEEN ASR. VP AND CHIEF FIN. OFFICERSell4K$115.00$501K132K
2024-10-11ZUHL COLLEEN ASR. VP AND CHIEF FIN. OFFICERTax withholding3K$109.82$326K136K
2024-10-11WOELFER W. TODDSVP, CHIEF OPERATING OFFICERTax withholding3K$109.82$335K104K
2024-10-11Gasper Trevor Q.SVP, GENERAL COUNSEL AND SEC.Tax withholding480$109.82$53K17K
2024-10-11MARTIN ROBERT WCHIEF EXEC. AND PRES.Tax withholding8K$109.82$827K378K
2024-10-10ZUHL COLLEEN ASR. VP AND CHIEF FIN. OFFICERTax withholding2K$105.30$164K139K
2024-10-10WOELFER W. TODDSVP, CHIEF OPERATING OFFICERTax withholding2K$105.30$160K107K
2024-10-10Gasper Trevor Q.SVP, GENERAL COUNSEL AND SEC.Tax withholding357$105.30$38K18K
2024-10-10MARTIN ROBERT WCHIEF EXEC. AND PRES.Tax withholding3K$105.30$362K386K
2024-10-08MARTIN ROBERT WCHIEF EXEC. AND PRES.Tax withholding9K$107.39$1.0M389K

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 the rarer, stronger signal.

Planned sales (Form 144)

Newest first. JSON

2 Form 144 notices on file for THO worth $701K at the prices reported; 0 in the last 90 days worth $0. Latest: WOELFER W. TODD filed on 2026-01-14 to sell 4,567 shares ($516K) from 2026-01-14.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-01-14WOELFER W. TODDOfficer5K$516K0.009%2026-01-14FIDELITY INVESTMENTS
2025-12-11WOELFER W. TODDOfficer2K$185K0.003%2025-12-11Fidelity Investments

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

17 holders above 5% have filed on THO, all on Schedule 13G (passive). The largest reported stake is Tompras Jennifer O. at 10.0% of the class (5,278,501 shares), filed 2026-05-19 for an event on 2026-05-13.

FiledFormHolderSharesOf classEvent
2026-08-1313GLife Cycle Investment Partners Ltdinvestment company4.1M7.9%2026-06-30
2026-08-1313G/Ano. 8Kayne Anderson Rudnick Investment Management, LLCinvestment adviser3.6M7.0%2026-06-30
2026-05-1913G/Ano. 4Tompras Jennifer O.individual5.3M10.0%2026-05-13
2026-05-1913G/Ano. 4ACR Alpine Capital Research, LLCinvestment adviser5.3M10.0%2026-05-13
2026-05-1913G/Ano. 4ACR ALPINE CAPITAL RESEARCH, LPpartnership5.3M10.0%2026-05-13
2026-05-1913G/Ano. 4ACR Alpine Capital GP, LLCother entity5.3M10.0%2026-05-13
2026-05-1913G/Ano. 4Alpine Investment Management, LLCother entity5.3M10.0%2026-05-13
2026-05-1913G/Ano. 4Alpine Holdings Corpcorporation5.3M10.0%2026-05-13
2026-05-1913G/Ano. 4Nicholas V. Tompras Living Trust 9/23/03, as amendedother entity5.3M10.0%2026-05-13
2026-05-1913G/Ano. 4Tompras Nicholas V.individual5.3M10.0%2026-05-13
2026-05-1913G/Ano. 4ALPINE PRIVATE CAPITAL, LLCinvestment adviser638K1.2%2026-05-13
2026-05-1913G/Ano. 4ACR Opportunity, L.P.partnership7K0.0%2026-05-13
2026-05-1913G/Ano. 4ALPINE PARTNERS MANAGEMENT, LLCparent holding company7K0.0%2026-05-13
2026-05-1913G/Ano. 4ACR Opportunity Fundinvestment company10K0.0%2026-05-13
2026-05-1213GLife Cycle Investment Partners Ltdinvestment adviser3.3M6.2%2026-03-31
2026-04-3013GVanguard Capital Managementinvestment adviser2.7M5.1%2026-03-31
2026-04-2913GVanguard Portfolio Managementinvestment adviser2.7M5.0%2026-03-31
2026-04-0913G/Ano. 3ACR ALPINE CAPITAL RESEARCH, LPpartnership4.9M9.3%2026-03-31
2026-04-0913G/Ano. 3Alpine Investment Management, LLCother entity4.9M9.3%2026-03-31
2026-04-0913G/Ano. 3Alpine Holdings Corpcorporation4.9M9.3%2026-03-31
2026-04-0913G/Ano. 3Nicholas V. Tompras Living Trust 9/23/03, as amendedother entity4.9M9.3%2026-03-31
2026-04-0913G/Ano. 3Tompras Nicholas V.individual4.9M9.3%2026-03-31
2026-04-0913G/Ano. 3Tompras Jennifer O.individual4.9M9.3%2026-03-31
2026-04-0913G/Ano. 3ACR Alpine Capital Research, LLCinvestment adviser4.9M9.3%2026-03-31
2026-04-0913G/Ano. 3ACR Alpine Capital GP, LLCother entity4.9M9.3%2026-03-31
2026-04-0913G/Ano. 3ALPINE PRIVATE CAPITAL, LLCinvestment adviser574K1.1%2026-03-31
2026-04-0913G/Ano. 3ACR Opportunity, L.P.partnership7K0.0%2026-03-31
2026-04-0913G/Ano. 3ALPINE PARTNERS MANAGEMENT, LLCparent holding company7K0.0%2026-03-31
2026-04-0913G/Ano. 3ACR Opportunity Fundinvestment company10K0.0%2026-03-31
2026-03-2713G/Ano. 12The Vanguard Groupinvestment adviser00.0%2026-03-13
2026-02-1313G/Ano. 7Kayne Anderson Rudnick Investment Management, LLCinvestment adviser4.7M8.9%2025-12-31

13F holders

Tracked managers holding THO at their latest 13F. JSON

6 of the 30 tracked managers held THO at their latest 13F, $84.0M in total at quarter-end prices. Citadel Advisors is the largest at $47.1M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 2 cut.

FundQuarterSharesValueOf portfolioChange in shares
Citadel Advisors2026-06-30626K$47.1M0.01%+343K
Two Sigma Investments2026-06-30355K$26.7M0.02%+276K
AQR Capital Management2026-06-3077K$5.7M0.00%-23K
Millennium Management2026-06-3029K$2.2M0.00%new or n/a
Bridgewater Associates2026-06-3020K$1.5M0.01%+8K
D. E. Shaw & Co.2026-06-3011K$834K0.00%-119K

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.

What this page is

THOR INDUSTRIES INC in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page pulls every series the site collects for one ticker onto one URL, keyed by the SEC's own ticker list, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a summary sentence built from the rows (last value, change, range with dates) and its own JSON and CSV links. Nothing on the page is written by a model; the sentences change only when the data does. A page exists only for companies with data in at least two series, and every section says when its source last updated.

This page follows THOR INDUSTRIES INC (THO), SEC CIK 730263, listed on NYSE. The cross-market tables live on the short interest and insider transactions hubs.

Source and method

Short interest
FINRA consolidated short interestTwice a month, about eight business days after settlement. Latest 2026-08-31.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-17.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-31.JSON and CSV
Planned sales
SEC EDGAR Form 144EDGAR read every 30 minutes; a notice is filed on or before the sell order. Latest 2026-01-14.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GEDGAR read every 30 minutes; 13D within five business days of crossing 5%, 13G on the passive schedule. Latest 2026-08-13.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRQuarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Earnings dates
SEC EDGAR 8-K Item 2.02 (full-text search)EDGAR full-text search read twice a day; the estimate is last year's date plus 52 weeks. Latest 2026-06-03.JSON and CSV
Insider trades
SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-06-16.JSON and CSV
Company record
EDGAR filing index for CIK 730263Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
30 requests a minute without a key, 120 a minute with a key from a free account.

Data checks. Every dataset is checked against its source once a day. This dataset passed the last run, 18 Sep 05:40 UTC.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a crowded short are the combination that has historically preceded squeezes; insider sells next to a crowded short are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Datasets

Frequently Asked Questions

How much of THO is sold short?
4,986,425 shares were held short at the 2026-08-31 settlement, 10.0 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is THO's daily short volume?
On 2026-09-17, 213,849 of the 376,199 THO shares reported to FINRA were sold short, 56.8% of the day's reported volume. Short volume is a flow for one day, not a position.
Does THO have fails to deliver?
The SEC's latest file shows 4,171 THO shares failed to deliver at settlement 2026-08-31. Fails are reported per settlement date and published twice a month with a lag.
Are THO insiders buying or selling?
No open-market insider trades were reported for THO in the last 90 days. The most recent filings are listed below; grants and option exercises carry a weaker signal than voluntary trades. Latest filing: ORTHWEIN PETER BUSCH (Director) on 2026-06-16.
Have THO insiders filed to sell?
2 Form 144 notices on file for THO worth $701K at the prices reported; 0 in the last 90 days worth $0. Latest: WOELFER W. TODD filed on 2026-01-14 to sell 4,567 shares ($516K) from 2026-01-14.
Who owns more than 5% of THO?
17 holders above 5% have filed on THO, all on Schedule 13G (passive). The largest reported stake is Tompras Jennifer O. at 10.0% of the class (5,278,501 shares), filed 2026-05-19 for an event on 2026-05-13.
Which funds hold THO?
6 of the 30 tracked managers held THO at their latest 13F, $84.0M in total at quarter-end prices. Citadel Advisors is the largest at $47.1M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 2 cut.

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.