XOOMAR

Atkore Inc. (ATKR)

Every FINRA and SEC series the site collects for Atkore Inc.: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on NYSE, classified by the SEC as miscellaneous electrical machinery, equipment & supplies.

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1.2M

Short interest

settlement 2026-08-14

1.0

Days to cover

-1.6% vs prior

34.2%

Short share of volume

2026-09-11

1,266

Fails to deliver

settlement 2026-08-07

-$28K

Insider flow, 90 days

0 buys, 1 sells

As of 2026-09-11.

Short interest

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

As of 14 August 2026, short interest in ATKR is 1,195,442 shares, down 49,649 shares over the last month. Over the last 48 readings it ranged from 851,892 shares (15 May 2026) to 4,308,505 shares (30 September 2024). The latest reading sits at the bottom of that range. At the reported average volume of 2.4M shares a day that is 1.0 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-141,195,442-1.6%2,394,3691.00
2026-07-311,215,190-2.4%398,3533.05
2026-07-151,245,091-6.1%272,9234.56
2026-06-301,326,065-0.4%423,0943.13
2026-06-151,331,511+10.5%363,6343.66
2026-05-291,204,725+41.4%672,0501.79
2026-05-15851,892-22.9%461,8231.84
2026-04-301,104,467-22.5%670,4541.65
2026-04-151,424,734-5.3%351,0284.06
2026-03-311,505,181+2.1%326,1614.61
2026-03-131,474,056+10.8%330,9764.45
2026-02-271,329,975+13.0%252,3395.27
2026-02-131,177,336-7.1%363,2373.24
2026-01-301,266,938+2.3%418,5243.03
2026-01-151,238,324-18.0%358,2243.46
2025-12-311,509,515-21.5%367,0154.11
2025-12-151,922,089-15.9%500,6993.84
2025-11-282,286,012-2.8%802,5462.85
2025-11-142,352,364+8.5%392,1326.00
2025-10-312,168,506+18.5%410,0025.29
2025-10-151,829,363+16.2%452,8904.04
2025-09-301,574,274-11.2%797,1061.97
2025-09-151,773,476+11.5%578,0783.07
2025-08-291,590,929+28.8%467,8603.40

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 11 September 2026, the short share of ATKR volume is 34.2%, up 21.2 points over the last five sessions. Over the last 52 readings it ranged from 10.7% (3 August 2026) to 67.2% (20 July 2026). The latest reading is 5.2 points above the 30-session average of 29.1%, on 133K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-1145K133K34.2%850
2026-09-10113K405K27.9%30
2026-09-0998K527K18.6%120
2026-09-0846K222K20.5%72
2026-09-0443K161K26.8%2,338
2026-09-0349K379K13.0%5
2026-09-0247K337K13.8%34
2026-09-0179K445K17.7%60
2026-08-3123K164K14.0%142
2026-08-2848K237K20.3%42
2026-08-2754K150K36.1%0
2026-08-2647K162K29.0%44
2026-08-2539K96K40.0%58
2026-08-2468K185K36.5%154
2026-08-2144K120K36.4%1
2026-08-2085K184K46.0%29
2026-08-1956K151K37.2%164
2026-08-1885K154K55.3%73
2026-08-1740K172K23.5%51
2026-08-1454K185K29.3%80
2026-08-13198K503K39.3%51
2026-08-12254K435K58.3%0
2026-08-1178K412K19.0%411
2026-08-1082K407K20.3%1,241
2026-08-07298K564K52.9%524
2026-08-06107K414K25.8%640
2026-08-05171K937K18.2%309
2026-08-04293K1.7M16.9%1,156
2026-08-03322K3.0M10.7%6,843
2026-07-3167K195K34.2%0

Fails to deliver

SEC, by settlement date. JSON

As of 7 August 2026, the fails-to-deliver balance in ATKR is 1,266 shares, up 203 shares over the last settlement date. Over the last 28 readings it ranged from 1 share (16 December 2025) to 16,647 shares (17 September 2025). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-071,266$93.66$119K
2026-08-041,063$93.55$99K
2026-07-172$73.12$146
2026-07-166$73.83$443
2026-07-01101$76.04$8K
2026-06-22271$81.17$22K
2026-06-1552$79.27$4K
2026-06-1153$76.12$4K
2026-04-2914,786$77.92$1.2M
2026-04-2814,843$77.21$1.1M
2026-04-151$68.89$69
2026-03-27553$60.52$33K
2026-03-1320$56.75$1K
2026-02-1960$66.39$4K
2026-02-186$66.48$399
2026-02-03388$70.06$27K
2026-01-21193$71.19$14K
2026-01-162$70.84$142
2025-12-161$64.58$65
2025-11-2174$57.94$4K
2025-10-234,014$66.11$265K
2025-10-142,844$63.69$181K
2025-10-10156$63.42$10K
2025-09-245$60.70$304
2025-09-22700$60.29$42K
2025-09-1716,647$61.96$1.0M
2025-09-107,538$58.24$439K
2025-09-027$58.19$407

Insider trades

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

Insiders at ATKR reported 1 open-market sell worth $28K in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: Deitzer John Michael (VP, CFO) on 2026-08-28.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-08-28Deitzer John MichaelVP, CFOGrant47$0.00$019K
2026-08-28Edmonds Franklin S. Jr.n/aGrant10$0.00$03K
2026-08-28Pregenzer John WCOO &amp; President, ElectricalGrant82$0.00$061K
2026-08-28Lowe LeAngela W.VP, Chief HR OfficerGrant36$0.00$036K
2026-08-28Lamps Mark F.Pres. Safety &amp; InfrastructureGrant47$0.00$036K
2026-08-28Edwards Barbara Joannen/aGrant18$0.00$06K
2026-08-28Kershaw Justin An/aGrant66$0.00$019K
2026-08-28James Wilbert W Jrn/aGrant60$0.00$017K
2026-08-28Waltz William E Jr.President and CEOGrant242$0.00$0124K
2026-08-28Kelly Daniel SVP, General Counsel and Sec.Grant36$0.00$033K
2026-08-28Zeffiro A Markn/aGrant48$0.00$024K
2026-08-28WYNN BETTY R.n/aGrant28$0.00$021K
2026-08-28MUSE SCOTT Hn/aGrant95$0.00$033K
2026-08-28Isbell Jeri Ln/aGrant98$0.00$031K
2026-08-28SCHROCK MICHAEL Vn/aGrant8$0.00$022K
2026-08-28Alvey James WilliamChief Accounting OfficerGrant9$0.00$05K
2026-08-10Lamps Mark F.Pres. Safety &amp; InfrastructureSell300$93.75$28K36K
2026-05-29Deitzer John MichaelVP, CFOGrant53$0.00$019K
2026-05-29Edmonds Franklin S. Jr.n/aGrant11$0.00$03K
2026-05-29Pregenzer John WCOO &amp; President, ElectricalGrant92$0.00$061K
2026-05-29Lowe LeAngela W.VP, Chief HR OfficerGrant41$0.00$036K
2026-05-29Lamps Mark F.Pres. Safety &amp; InfrastructureGrant53$0.00$036K
2026-05-29Edwards Barbara Joannen/aGrant20$0.00$06K
2026-05-29Kershaw Justin An/aGrant74$0.00$019K
2026-05-29James Wilbert W Jrn/aGrant68$0.00$017K
2026-05-29Waltz William E Jr.President and CEOGrant272$0.00$0123K
2026-05-29Kelly Daniel SVP, General Counsel and Sec.Grant41$0.00$033K
2026-05-29Zeffiro A Markn/aGrant54$0.00$024K
2026-05-29WYNN BETTY R.n/aGrant31$0.00$021K
2026-05-29MUSE SCOTT Hn/aGrant107$0.00$033K
2026-05-29Isbell Jeri Ln/aGrant110$0.00$031K
2026-05-29SCHROCK MICHAEL Vn/aGrant9$0.00$022K
2026-05-29Alvey James WilliamChief Accounting OfficerGrant11$0.00$05K
2026-05-08Kershaw Justin An/aSell3K$73.67$206K19K
2026-05-08James Wilbert W Jrn/aSell3K$73.61$243K17K
2026-05-08Waltz William E Jr.President and CEOGift13K$0.00$0123K
2026-02-27Deitzer John MichaelVP, CFOGrant68$0.00$019K
2026-02-27Edmonds Franklin S. Jr.n/aGrant14$0.00$03K
2026-02-27Pregenzer John WCOO &amp; President, ElectricalGrant118$0.00$061K
2026-02-27Lowe LeAngela W.VP, Chief HR OfficerGrant52$0.00$036K
2026-02-27Lamps Mark F.Pres. Safety &amp; InfrastructureGrant68$0.00$036K
2026-02-27Edwards Barbara Joannen/aGrant26$0.00$06K
2026-02-27Kershaw Justin An/aGrant94$0.00$021K
2026-02-27James Wilbert W Jrn/aGrant87$0.00$020K
2026-02-27Waltz William E Jr.President and CEOGrant346$0.00$0136K
2026-02-27Kelly Daniel SVP, General Counsel and Sec.Grant52$0.00$033K
2026-02-27Zeffiro A Markn/aGrant69$0.00$024K
2026-02-27WYNN BETTY R.n/aGrant39$0.00$021K
2026-02-27MUSE SCOTT Hn/aGrant136$0.00$033K
2026-02-27Isbell Jeri Ln/aGrant140$0.00$030K

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

1 Form 144 notice on file for ATKR worth $28K at the prices reported; 1 in the last 90 days worth $28K. Latest: MARK LAMPS filed on 2026-08-10 to sell 300 shares ($28K) from 2026-08-10.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-08-10MARK LAMPSOfficer300$28K0.001%2026-08-10Morgan Stanley Smith Barney LLC Executive Financial Services

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

4 holders above 5% have filed on ATKR, all on Schedule 13G (passive). The largest reported stake is Gates Capital Management, L.P. at 5.1% of the class (1,710,192 shares), filed 2026-08-14 for an event on 2026-06-30.

FiledFormHolderSharesOf classEvent
2026-08-1413G/Ano. 5Gates Capital Management, L.P.investment adviser, partnership1.7M5.1%2026-06-30
2026-08-1413G/Ano. 5Gates Capital Management GP, LLCother entity1.7M5.1%2026-06-30
2026-08-1413G/Ano. 5Gates Capital Management, Inc.investment adviser, corporation1.7M5.1%2026-06-30
2026-08-1413G/Ano. 5Jeffrey L. Gatesindividual1.7M5.1%2026-06-30

13F holders

Tracked managers holding ATKR at their latest 13F. JSON

7 of the 30 tracked managers held ATKR at their latest 13F, $56.5M in total at quarter-end prices. Two Sigma Investments is the largest at $30.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 4 cut.

FundQuarterSharesValueOf portfolioChange in shares
Two Sigma Investments2026-06-30402K$30.6M0.02%+49K
D. E. Shaw & Co.2026-06-30145K$11.1M0.01%+84K
AQR Capital Management2026-06-3051K$3.8M0.00%-406
Point72 Asset Management2026-06-3050K$3.8M0.00%+20K
Citadel Advisors2026-06-3049K$3.8M0.00%-52K
Millennium Management2026-06-3024K$1.8M0.00%-15K
Bridgewater Associates2026-06-3022K$1.7M0.01%-51K

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.

Financials

SEC XBRL, as filed. JSON

In Q2 2026 (quarter ended 2026-06-26) Atkore Inc. reported revenue of $794.8M, up 8.1% from the same quarter a year earlier, and net income of $745K (0.02 diluted EPS). In FY 2025 it generated $402.8M of operating cash flow and spent $100.0M on buybacks. As of 2026-06-26, cash was $346.2M against $760.2M of debt.

Cash
$346.2M
Debt
$760.2M
Equity
$1.28B
Total assets
$2.74B
Shares outstanding
33,772,550

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 20262026-06-26$794.8M$745K0.1%0.02
Q1 20262026-03-27$731.4M-$124.1M-17.0%-3.65
Q4 20252025-12-26$655.5M$15.0M2.3%0.44
Q4 2025derived2025-09-30$752.0M-$54.4M-7.2%n/a
Q2 20252025-06-27$735.0M$43.0M5.8%1.25
Q1 20252025-03-28$701.7M-$50.1M-7.1%-1.46
Q4 20242024-12-27$661.6M$46.3M7.0%1.31
Q4 2024derived2024-09-30$788.3M$73.1M9.3%n/a

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-09-30$2.85B-$15.2M$402.8M$107.1M$100.0Mn/a
FY 20242024-09-30$3.20B$472.9M$549.0M$149.9M$381.0Mn/a
FY 20232023-09-30$3.52B$689.9M$807.6M$218.9M$491.0Mn/a
FY 20222022-09-30$3.91B$913.4M$786.8M$135.8M$500.2Mn/a
FY 20212021-09-30$2.93B$587.9M$572.9M$64.5M$135.1Mn/a

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 cash paid to repurchase common stock in the year (XBRL PaymentsForRepurchaseOfCommonStock), not authorizations. Balance sheet lines are as of 2026-06-26; shares outstanding as of 2026-07-31 from the cover page.

What this page is

Atkore 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 Atkore Inc. (ATKR), SEC CIK 1666138, listed on NYSE, classified by the SEC as miscellaneous electrical machinery, equipment & supplies. 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 2026-08-14.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-11.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-07.JSON and CSV
Planned sales
SEC EDGAR Form 144EDGAR read every 30 minutes; a notice is filed on or before the sell order. Latest 2026-08-10.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 2026-08-14.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
Financials
SEC XBRL company factsRefreshed weekly from the SEC's structured data; values are as filed in the 10-Q and 10-K. Latest 2026-06-26.JSON and CSV
Insider trades
SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-08-28.JSON and CSV
Company record
EDGAR filing index for CIK 1666138Ticker, 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, 13 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 ATKR is sold short?
1,195,442 shares were held short at the 2026-08-14 settlement, 1.0 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 ATKR's daily short volume?
On 2026-09-11, 45,365 of the 132,515 ATKR shares reported to FINRA were sold short, 34.2% of the day's reported volume. Short volume is a flow for one day, not a position.
Does ATKR have fails to deliver?
The SEC's latest file shows 1,266 ATKR shares failed to deliver at settlement 2026-08-07. Fails are reported per settlement date and published twice a month with a lag.
Are ATKR insiders buying or selling?
Insiders at ATKR reported 1 open-market sell worth $28K in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: Deitzer John Michael (VP, CFO) on 2026-08-28.
Have ATKR insiders filed to sell?
1 Form 144 notice on file for ATKR worth $28K at the prices reported; 1 in the last 90 days worth $28K. Latest: MARK LAMPS filed on 2026-08-10 to sell 300 shares ($28K) from 2026-08-10.
Who owns more than 5% of ATKR?
4 holders above 5% have filed on ATKR, all on Schedule 13G (passive). The largest reported stake is Gates Capital Management, L.P. at 5.1% of the class (1,710,192 shares), filed 2026-08-14 for an event on 2026-06-30.
What did ATKR report last quarter?
In Q2 2026 (quarter ended 2026-06-26) Atkore Inc. reported revenue of $794.8M, up 8.1% from the same quarter a year earlier, and net income of $745K (0.02 diluted EPS). In FY 2025 it generated $402.8M of operating cash flow and spent $100.0M on buybacks. As of 2026-06-26, cash was $346.2M against $760.2M of debt.
Which funds hold ATKR?
7 of the 30 tracked managers held ATKR at their latest 13F, $56.5M in total at quarter-end prices. Two Sigma Investments is the largest at $30.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 4 cut.

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