XOOMAR

Power Integrations (POWI)

Power Integrations on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as semiconductors & related devices.

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5.2M

Short interest

settlement 2026-10-15

7.0

Days to cover

+0.4 days vs prior

36.7%

Short share of volume

2026-11-02

985

Fails to deliver

settlement 2026-10-05

Wed 4 Nov

Next earnings

estimated date

$0

Insider flow, 90 days

0 buys, 0 sells

As of 2026-11-02.

Short interest

FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSON

As of 15 October 2026, short interest in POWI is 5,161,894 shares, down 716,351 shares over the last month. Over the last 48 readings it ranged from 2,395,658 shares (15 August 2025) to 5,878,245 shares (15 September 2026). At the reported average volume of 732K shares a day that is 7.0 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-10-155,161,894-5.9%731,9917.05
2026-09-305,484,575-6.7%827,4216.63
2026-09-155,878,245+3.6%873,0116.73
2026-08-315,675,387+2.6%696,8758.14
2026-08-145,531,780-0.6%603,1539.17
2026-07-315,565,877+1.6%671,9718.28
2026-07-155,476,352+17.1%790,8316.92
2026-06-304,676,081-0.8%1,138,7004.11
2026-06-154,716,260+3.3%1,091,2434.32
2026-05-294,566,868+14.1%1,749,3362.61
2026-05-154,002,506-8.2%1,298,7473.08
2026-04-304,361,662+5.3%1,347,3153.24
2026-04-154,143,862-13.3%676,5086.13
2026-03-314,777,527-2.6%954,0005.01
2026-03-134,905,458+9.8%1,015,6234.83
2026-02-274,469,101+10.4%666,4606.71
2026-02-134,048,976-7.6%1,033,3093.92
2026-01-304,383,038-14.8%922,1854.75
2026-01-155,146,137+8.1%880,8385.84
2025-12-314,759,463+14.6%1,602,2642.97
2025-12-154,153,504+1.3%836,6364.96
2025-11-284,101,544-1.9%862,4644.76
2025-11-144,181,892+13.0%995,9694.20
2025-10-313,700,314-5.8%1,114,1393.32
2025-10-153,930,339+57.7%2,200,1211.79
2025-09-302,492,593+0.8%706,5923.53
2025-09-152,473,563-3.0%583,7304.24
2025-08-292,550,673+6.5%525,0044.86
2025-08-152,395,658-15.4%781,1283.07
2025-07-312,830,790+16.6%490,1675.78
2025-07-152,428,138-8.8%386,5566.28
2025-06-302,661,211-2.0%443,3976.00
2025-06-132,716,490-26.4%572,3784.75
2025-05-303,688,481+1.9%473,2367.79
2025-05-153,618,789-9.5%649,0385.58
2025-04-304,000,221-0.9%460,1568.69
2025-04-154,034,994+4.1%836,9104.82
2025-03-313,877,199-0.5%455,8548.51
2025-03-143,896,063+2.8%592,3576.58
2025-02-283,789,955+16.0%723,5085.24
2025-02-143,268,167-3.0%458,8277.12
2025-01-313,367,639-6.1%469,1187.18
2025-01-153,587,909-5.1%389,6439.21
2024-12-313,781,660-2.1%354,31710.67
2024-12-133,863,659-0.1%336,75211.47
2024-11-293,867,125-2.4%359,71610.75
2024-11-153,961,637-0.9%518,9287.63
2024-10-313,997,834+21.3%282,77614.14

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 2 November 2026, the short share of POWI volume is 36.7%, down 41.3 points over the last five sessions. Over the last 30 readings it ranged from 31.4% (29 September 2026) to 85.1% (22 October 2026). The latest reading sits at the bottom of that range. The latest reading is 24.9 points below the 30-session average of 61.5%, on 479K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-11-02176K479K36.7%2,550
2026-10-30245K562K43.6%1,714
2026-10-29134K178K75.2%0
2026-10-28173K252K68.5%0
2026-10-2788K181K48.4%0
2026-10-26134K171K78.0%0
2026-10-23189K307K61.8%0
2026-10-22302K355K85.1%0
2026-10-21120K184K65.3%0
2026-10-20148K210K70.2%0
2026-10-19252K338K74.8%0
2026-10-16272K336K80.9%0
2026-10-15260K524K49.6%157
2026-10-14212K428K49.4%80
2026-10-13141K439K32.2%60
2026-10-12135K184K73.3%0
2026-10-0994K141K67.1%692
2026-10-08145K214K68.0%20
2026-10-07127K173K73.4%630
2026-10-06148K212K69.9%0
2026-10-05142K200K70.9%4
2026-10-02196K370K53.0%373
2026-10-01127K350K36.1%27
2026-09-30193K431K44.8%0
2026-09-29160K511K31.4%0
2026-09-28178K254K70.3%0
2026-09-25121K199K60.7%0
2026-09-24188K233K80.8%396
2026-09-23191K250K76.2%1
2026-09-22143K281K50.8%64

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 5 October 2026, the fails-to-deliver balance in POWI is 985 shares, up 102 shares over the last settlement date. Over the last 30 readings it ranged from 3 shares (30 September 2026) to 215,836 shares (29 June 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-10-05985$54.46$54K
2026-10-01883$51.80$46K
2026-09-303$51.08$153
2026-09-2989$51.84$5K
2026-09-285,024$52.22$262K
2026-09-045,903$50.54$298K
2026-09-0249$49.78$2K
2026-08-31919$51.51$47K
2026-08-2636,300$54.63$2.0M
2026-08-0594$64.57$6K
2026-08-0399$60.71$6K
2026-07-30398$56.57$23K
2026-07-27114$63.46$7K
2026-07-24278$70.87$20K
2026-07-22187$74.39$14K
2026-07-20682$70.45$48K
2026-07-1722$69.84$2K
2026-07-16639$71.02$45K
2026-07-15195$70.76$14K
2026-07-141,612$69.44$112K
2026-07-131,241$72.07$89K
2026-07-101,246$70.83$88K
2026-07-0911$66.46$731
2026-07-02117$80.27$9K
2026-06-303,305$78.96$261K
2026-06-29215,836$79.37$17.1M
2026-06-2635$84.81$3K
2026-06-25840$81.86$69K
2026-06-188,947$80.73$722K
2026-06-1231,942$77.76$2.5M

Insider trades

SEC Form 4, newest first. JSON

No open-market insider trades were reported for POWI in the last 90 days. The most recent filings are listed below. Latest filing: Lloyd Jennifer A (President and CEO) on 2026-07-22.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-07-22Lloyd Jennifer APresident and CEOSell7K$73.73$520K137K
2026-07-22Lloyd Jennifer APresident and CEOSell6K$73.73$416K144K
2026-07-01Vig RaviDirectorGrant2K$0.00$09K
2026-07-01LOWE GREGG ADirectorGrant2K$0.00$07K
2026-07-01IYER BALAKRISHNAN SDirectorGrant2K$0.00$027K
2026-07-01Gioia Nancy LeeDirectorGrant2K$0.00$010K
2026-07-01Ganti AnitaDirectorGrant2K$0.00$015K
2026-07-01Arienzo WendyDirectorGrant2K$0.00$020K
2026-05-29Gupta SunilSr. Vice President, OperationsSell7K$83.67$574K64K
2026-05-28BALAKRISHNAN BALUDirectorSell29K$87.05$2.5M280K
2026-05-28BALAKRISHNAN BALUDirectorSell95K$86.25$8.2M309K
2026-05-27BRATHWAITE NICHOLASDirectorSell2K$86.62$150K22K
2026-05-26Gupta SunilSr. Vice President, OperationsSell16K$82.18$1.3M71K
2026-05-26BRATHWAITE NICHOLASDirectorSell7K$82.71$550K24K
2026-05-26BALAKRISHNAN BALUDirectorSell71K$82.26$5.8M404K
2026-05-26BALAKRISHNAN BALUDirectorSell48K$80.93$3.9M475K
2026-05-21BALAKRISHNAN BALUDirectorSell54K$70.71$3.8M522K
2026-05-15Balow MichaelSr. VP, Worldwide SalesGrant33K$0.00$033K
2026-05-13BRATHWAITE NICHOLASDirectorSell7K$72.41$499K31K
2026-04-02Jain GaganVP, Worldwide SalesSell105$51.93$5K26K
2026-04-02Jain GaganVP, Worldwide SalesSell53$51.93$3K26K
2026-04-02Jain GaganVP, Worldwide SalesSell64$51.93$3K26K
2026-04-02Jain GaganVP, Worldwide SalesSell91$51.93$5K26K
2026-02-27Lloyd Jennifer APresident and CEOGrant73K$0.00$0149K
2026-02-25Jain GaganVP, Worldwide SalesSell3K$48.22$155K31K
2026-02-25Jain GaganVP, Worldwide SalesSell262$48.30$13K34K
2026-02-10Gupta SunilVP of OperationsSell1K$45.97$58K97K
2026-02-10BALAKRISHNAN BALUDirectorSell5K$47.20$236K576K
2026-02-09Lloyd Jennifer APresident and CEOSell3K$46.57$155K76K
2026-02-09Jain GaganVP, Worldwide SalesReturned to company938$46.57$44K34K
2026-02-09Gupta SunilVP of OperationsSell1K$46.57$65K98K
2026-02-09BALAKRISHNAN BALUDirectorSell6K$46.53$296K581K
2026-02-06Lloyd Jennifer APresident and CEOGrant6K$0.00$080K
2026-02-06Jain GaganVP, Worldwide SalesGrant3K$0.00$035K
2026-02-06Gupta SunilVP of OperationsGrant4K$0.00$0100K
2026-02-06BALAKRISHNAN BALUDirectorGrant12K$0.00$0588K
2026-02-03Jain GaganVP, Worldwide SalesSell94$45.58$4K33K
2026-02-03Jain GaganVP, Worldwide SalesSell63$45.58$3K33K
2026-02-03Gupta SunilVP of OperationsSell1K$45.58$64K96K
2026-02-03Gupta SunilVP of OperationsSell768$45.58$35K97K
2026-02-03BALAKRISHNAN BALUDirectorSell7K$44.75$295K575K
2026-02-03BALAKRISHNAN BALUDirectorSell3K$44.75$156K582K
2026-02-02Erba NancyChief Financial OfficerGrant64K$0.00$064K
2026-01-29Jain GaganVP, Worldwide SalesSell995$46.50$46K33K
2026-01-29Gupta SunilVP of OperationsSell2K$46.50$79K98K
2026-01-29BALAKRISHNAN BALUDirectorSell6K$46.59$260K585K
2026-01-27Gupta SunilSr. Vice President, OperationsGrant23K$0.00$090K
2026-01-27Jain GaganVP, Worldwide SalesGrant11K$0.00$029K
2026-01-27Jain GaganVP, Worldwide SalesGrant16K$0.00$034K
2026-01-27Gupta SunilVP of OperationsGrant33K$0.00$099K
2025-11-24Jain GaganVP, Worldwide SalesSell1K$33.80$35K17K
2025-11-04Verity Robert EricInterim CFOSell110$40.21$4K8K
2025-11-04Jain GaganVP, Worldwide SalesSell111$40.22$4K18K
2025-11-03Verity Robert EricInterim CFOGrant2K$0.00$08K
2025-09-24Jain GaganVP, Worldwide SalesSell456$41.43$19K18K
2025-08-22Bailey DougFormer VP MarketingSell15K$47.38$711K36K
2025-08-18Bailey DougFormer VP MarketingSell17K$46.41$788K51K
2025-08-14Bailey DougVP MarketingSell17K$46.86$796K68K
2025-08-12Jain GaganVP, Worldwide SalesSell2K$46.05$94K19K
2025-08-01Lloyd Jennifer APresident and CEOGrant21K$0.00$073K
2025-08-01Lloyd Jennifer APresident and CEOGrant52K$0.00$052K
2025-07-01Vig RaviDirectorGrant3K$0.00$07K
2025-07-01LOWE GREGG ADirectorGrant3K$0.00$04K
2025-07-01IYER BALAKRISHNAN SDirectorGrant3K$0.00$024K
2025-07-01Gioia Nancy LeeDirectorGrant3K$0.00$07K
2025-07-01Ganti AnitaDirectorGrant3K$0.00$012K
2025-07-01BRATHWAITE NICHOLASDirectorGrant3K$0.00$038K
2025-07-01Arienzo WendyDirectorGrant3K$0.00$017K
2025-04-02Bailey DougVP MarketingSell1K$50.89$55K85K
2025-04-02BALAKRISHNAN BALUPresident and CEOSell10K$51.19$489K591K
2025-04-02Barsan RaduVP of Technology, EngineeringSell2K$50.89$85K44K
2025-04-02Jain GaganVP, Worldwide SalesSell104$50.89$5K21K
2025-04-02Jain GaganVP, Worldwide SalesSell51$50.89$3K21K
2025-04-02Jain GaganVP, Worldwide SalesSell62$50.89$3K21K
2025-04-02Jain GaganVP, Worldwide SalesSell89$50.89$5K21K
2025-04-02Jain GaganVP, Worldwide SalesSell96$50.89$5K21K
2025-04-02NAYYAR SANDEEPChief Financial OfficerSell2K$50.89$98K107K
2025-04-02WALKER CLIFFORDVP Corporate DevelopmentSell1K$50.89$55K142K
2025-02-20Barsan RaduVP of Technology, EngineeringSell10K$66.08$687K45K
2025-02-18LOWE GREGG ADirectorGrant728$0.00$0728
2025-02-11Bailey DougVP MarketingSell698$57.28$40K97K
2025-02-11Bailey DougVP MarketingSell11K$58.38$662K86K
2025-02-11BALAKRISHNAN BALUPresident and CEOSell5K$58.36$306K600K
2025-02-11Barsan RaduVP of Technology, EngineeringSell2K$57.28$97K56K
2025-02-11Gupta SunilVP of OperationsSell1K$57.28$75K66K
2025-02-11NAYYAR SANDEEPChief Financial OfficerSell3K$57.28$193K109K
2025-02-11WALKER CLIFFORDVP Corporate DevelopmentSell865$57.28$50K143K
2025-02-10Gupta SunilVP of OperationsReturned to company1K$58.01$73K68K
2025-02-10BALAKRISHNAN BALUPresident and CEOSell6K$58.26$350K605K
2025-02-10Jain GaganVP, Worldwide SalesSell420$58.01$24K21K
2025-02-10Bailey DougVP MarketingSell1K$58.01$62K98K
2025-02-10Barsan RaduVP of Technology, EngineeringSell1K$58.01$82K57K
2025-02-10WALKER CLIFFORDVP Corporate DevelopmentSell1K$58.01$66K144K
2025-02-10NAYYAR SANDEEPChief Financial OfficerSell2K$58.01$109K113K
2025-02-07Gupta SunilVP of OperationsGrant3K$0.00$069K
2025-02-07BALAKRISHNAN BALUPresident and CEOGrant11K$0.00$0611K
2025-02-07Jain GaganVP, Worldwide SalesGrant994$0.00$021K
2025-02-07Bailey DougVP MarketingGrant3K$0.00$099K
2025-02-07Barsan RaduVP of Technology, EngineeringGrant4K$0.00$059K
2025-02-07WALKER CLIFFORDVP Corporate DevelopmentGrant3K$0.00$0145K

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.

Planned sales (Form 144)

Newest first. JSON

20 Form 144 notices on file for POWI worth $33.8M at the prices reported; 0 in the last 90 days worth $0. Latest: SUNIL K GUPTA filed on 2026-05-29 to sell 6,860 shares ($574K) from 2026-05-29.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-05-29SUNIL K GUPTAOfficer7K$574K0.012%2026-05-29Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-28CLIFFORD J WALKEROfficer15K$1.2M0.027%2026-05-26Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-28BALU & MOHINI BALAKRISHNAN FAM TROfficer, Director124K$10.7M0.223%2026-05-28Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-27Nicholas & Janice Brathwaite Living Trust DTD 02/28/2007Board Member6K$500K0.011%2026-05-27UBS Financial Services Inc
2026-05-26CLIFFORD J WALKEROfficer15K$1.1M0.026%2026-05-26Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-26SUNIL K GUPTAOfficer16K$1.3M0.029%2026-05-26Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-26BALU & MOHINI BALAKRISHNAN FAM TROfficer, Director119K$9.7M0.213%2026-05-26Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-21BALU & MOHINI BALAKRISHNAN FAM TROfficer, Director54K$3.8M0.097%2026-05-21Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-14CLIFFORD J WALKEROfficer300$21K0.001%2026-05-12Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-14GAGAN JAINOfficer541$39K0.001%2026-05-14Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-13CLIFFORD J WALKEROfficer20K$1.5M0.037%2026-05-13Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-13Nicholas & Janice Brathwaite Living Trust DTD 02/28/2007Board Member14K$967K0.024%2026-05-13UBS Financial Services Inc
2026-05-12CLIFFORD J WALKEROfficer9K$667K0.017%2026-05-12Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-25GAGAN JAINOfficer3K$168K0.006%2026-02-25Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-10BALU BALAKRISHNANOfficer, Director5K$236K0.009%2026-02-10Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-09BALU BALAKRISHNANOfficer, Director6K$296K0.011%2026-02-09Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-09BALU BALAKRISHNANOfficer, Director3K$157K0.006%2026-02-09Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-03BALU BALAKRISHNANOfficer, Director10K$451K0.018%2026-02-03Morgan Stanley Smith Barney LLC Executive Financial Services
2026-01-29BALU BALAKRISHNANOfficer, Director6K$257K0.010%2026-01-29Morgan Stanley Smith Barney LLC Executive Financial Services
2025-11-24GAGAN JAINOfficer1K$35K0.002%2025-11-24Morgan Stanley Smith Barney LLC Executive Financial Services

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

8 holders report 5% or more of POWI in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 14.9% of the class (8,227,124 shares), filed 2026-01-21 for an event on 2025-12-31.

FiledFormHolderSharesOf classEvent
2026-06-0413G/Ano. 13Neuberger Berman Group LLCparent holding company2.5M4.5%2026-05-31
2026-06-0413G/Ano. 13Neuberger Berman Investment Advisers LLCinvestment adviser2.5M4.4%2026-05-31
2026-05-1513GWellington Investment Advisors Holdings LLPparent holding company3.4M6.0%2026-03-31
2026-05-1513GWellington Group Holdings LLPparent holding company3.4M6.0%2026-03-31
2026-05-1513GWellington Management Group LLPparent holding company3.4M6.0%2026-03-31
2026-05-1513GWellington Management Company LLPinvestment adviser3.4M5.5%2026-03-31
2026-04-3013GVanguard Capital Managementinvestment adviser2.9M5.3%2026-03-31
2026-04-2913GVanguard Portfolio Managementinvestment adviser5.0M9.1%2026-03-31
2026-03-2713G/Ano. 17The Vanguard Groupinvestment adviser00.0%2026-03-13
2026-02-0913GSTATE STREET CORPORATIONparent holding company3.4M6.1%2025-12-31
2026-01-2113G/Ano. 5BlackRock, Inc.parent holding company8.2M14.9%2025-12-31

13F holders

Tracked managers holding POWI at their latest 13F. JSON

5 of the 30 tracked managers held POWI at their latest 13F, $12.0M in total at quarter-end prices. AQR Capital Management is the largest at $3.7M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 3 cut.

FundQuarterSharesValueOf portfolioChange in shares
AQR Capital Management2026-06-3044K$3.7M0.00%-94K
Citadel Advisors2026-06-3043K$3.6M0.00%-67K
D. E. Shaw & Co.2026-06-3026K$2.2M0.00%new
Bridgewater Associates2026-06-3018K$1.5M0.01%new
Two Sigma Investments2026-06-3014K$1.1M0.00%-9K

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 FY 2026 (quarter ended 2026-06-30) Power Integrations reported revenue of $118.9M, up 2.7% from the same quarter a year earlier, and net income of $9.8M (0.17 diluted EPS). In FY 2025 it generated $111.5M of operating cash flow and spent $98.1M on buybacks and $47.2M on dividends.

Cash
$70.6M
Equity
$680.5M
Total assets
$779.0M
Shares outstanding
55,873,298

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 FY 20262026-06-30$118.9M$9.8M8.3%0.17
Q1 FY 20262026-03-31$108.3M$3.3M3.0%0.06
Q4 FY 2025derived2025-12-31$103.2M$13.3M12.9%n/a
Q3 FY 20252025-09-30$118.9M-$1.4M-1.1%-0.02
Q2 FY 20252025-06-30$115.9M$1.4M1.2%0.02
Q1 FY 20252025-03-31$105.5M$8.8M8.3%0.15
Q4 FY 2024derived2024-12-31$105.3M$9.1M8.7%n/a
Q3 FY 20242024-09-30$115.8M$14.3M12.3%0.25

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$443.5M$22.1M$111.5M$24.4M$98.1M$47.2M
FY 20242024-12-31$419.0M$32.2M$81.2M$17.3M$27.9M$46.0M
FY 20232023-12-31$444.5M$55.7M$65.8M$20.9M$55.3M$44.0M
FY 20222022-12-31$651.1M$170.9M$215.3M$39.2M$311.1M$41.5M
FY 20212021-12-31$703.3M$164.4M$230.9M$47.3M$73.9M$32.6M

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 2026-08-03 from the cover page.

What this page is

Power Integrations 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 puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, 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 one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Power Integrations (POWI), SEC CIK 833640, listed on Nasdaq, classified by the SEC as semiconductors & related devices. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest
FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-05.JSON and CSV
Planned sales
SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-05-29.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-06-04.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
Earnings dates
SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-05.JSON and CSV
Insider trades
SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-07-22.JSON and CSV
Company record
EDGAR filing index for CIK 833640Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
10 requests a minute without a key, 30 with a free key from a free account.

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 large short position are rare and stand out; insider sells next to one 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 POWI is sold short?
5,161,894 shares were held short at the 2026-10-15 settlement, 7.0 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 POWI's daily short volume?
On 2026-11-02, 175,582 of the 478,571 POWI shares reported to FINRA were sold short, 36.7% of the day's reported volume. Short volume is a flow for one day, not a position.
Does POWI have fails to deliver?
The SEC's latest file shows 985 POWI shares failed to deliver at settlement 2026-10-05. Fails are reported per settlement date and published twice a month with a lag.
Are POWI insiders buying or selling?
No open-market insider trades were reported for POWI in the last 90 days. The most recent filings are listed below. Latest filing: Lloyd Jennifer A (President and CEO) on 2026-07-22.
Have POWI insiders filed to sell?
20 Form 144 notices on file for POWI worth $33.8M at the prices reported; 0 in the last 90 days worth $0. Latest: SUNIL K GUPTA filed on 2026-05-29 to sell 6,860 shares ($574K) from 2026-05-29.
Who owns 5% or more of POWI?
8 holders report 5% or more of POWI in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 14.9% of the class (8,227,124 shares), filed 2026-01-21 for an event on 2025-12-31.
What did POWI report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) Power Integrations reported revenue of $118.9M, up 2.7% from the same quarter a year earlier, and net income of $9.8M (0.17 diluted EPS). In FY 2025 it generated $111.5M of operating cash flow and spent $98.1M on buybacks and $47.2M on dividends.
Which tracked 13F managers own POWI?
5 of the 30 tracked 13F managers held POWI shares at their latest filing, $12.0M in all. The largest: Cliff Asness's AQR Capital Management (44K shares, $3.7M), Ken Griffin's Citadel Advisors (43K shares, $3.6M), D. E. Shaw & Co. (26K shares, $2.2M), Ray Dalio's Bridgewater Associates (18K shares, $1.5M), Two Sigma Investments (14K shares, $1.1M).

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