XOOMAR

ON Semiconductor (ON)

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

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30.0M

Short interest

settlement 2026-09-30

2.4

Days to cover

-0.6 days vs prior

43.6%

Short share of volume

2026-10-09

148

Fails to deliver

settlement 2026-08-27

-$1.2M

Insider flow, 90 days

0 buys, 1 sells

As of 2026-10-09.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in ON is 30,002,949 shares, down 219,369 shares over the last month. Over the last 48 readings it ranged from 23,852,745 shares (15 October 2024) to 40,960,444 shares (15 December 2025). At the reported average volume of 12.3M shares a day that is 2.4 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-3030,002,949+1.5%12,273,9412.44
2026-09-1529,554,283-2.2%9,716,1543.04
2026-08-3130,222,318+3.6%6,702,5784.51
2026-08-1429,171,904-5.7%10,821,7902.70
2026-07-3130,922,210-1.2%8,619,8363.59
2026-07-1531,300,388+5.1%11,259,1002.78
2026-06-3029,775,620-4.5%16,747,9771.78
2026-06-1531,180,437-0.2%11,869,1642.63
2026-05-2931,242,240-11.0%11,188,9162.79
2026-05-1535,104,463+20.3%14,796,8102.37
2026-04-3029,179,952-2.9%12,946,3022.25
2026-04-1530,061,462-1.7%6,661,3384.51
2026-03-3130,570,099+8.7%7,390,4274.14
2026-03-1328,121,012-12.1%7,526,1283.74
2026-02-2731,982,993-7.5%6,531,6034.90
2026-02-1334,588,528+1.0%12,263,5182.82
2026-01-3034,246,634-1.6%8,570,8494.00
2026-01-1534,806,227-1.8%9,587,4913.63
2025-12-3135,433,514-13.5%8,973,2613.95
2025-12-1540,960,444+3.3%8,767,5344.67
2025-11-2839,667,834+1.3%9,022,7604.40
2025-11-1439,173,714+7.2%9,067,1534.32
2025-10-3136,553,014+6.3%9,730,3263.76
2025-10-1534,388,457-1.4%8,481,2964.05

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 9 October 2026, the short share of ON volume is 43.6%, down 18.6 points over the last five sessions. Over the last 30 readings it ranged from 23.1% (10 September 2026) to 70.9% (1 October 2026). The latest reading is 3.6 points below the 30-session average of 47.3%, on 3.9M shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-091.7M3.9M43.6%1,819
2026-10-081.9M4.0M46.3%14,397
2026-10-072.6M3.9M66.0%25,287
2026-10-061.7M2.7M61.7%1,502
2026-10-052.9M4.1M70.1%23,002
2026-10-025.5M8.9M62.2%7,676
2026-10-012.8M4.0M70.9%2,215
2026-09-301.2M1.9M61.9%88
2026-09-291.6M2.6M59.9%520
2026-09-281.8M3.2M56.5%137
2026-09-253.0M4.5M66.4%1,136
2026-09-241.8M2.8M63.7%1,968
2026-09-232.0M3.1M65.6%1,099
2026-09-221.8M4.7M38.4%1,100
2026-09-211.3M4.0M33.1%3,375
2026-09-181.6M4.7M33.5%1,478
2026-09-172.0M6.0M32.9%62,476
2026-09-162.1M7.0M29.4%42,574
2026-09-152.6M5.6M45.6%3,601
2026-09-141.3M3.4M37.0%378
2026-09-111.3M4.2M31.7%4,827
2026-09-10496K2.1M23.1%3,789
2026-09-09725K2.5M29.1%15,787
2026-09-081.4M3.7M37.9%3,446
2026-09-041.0M3.0M34.2%1,221
2026-09-03956K2.8M34.0%4,238
2026-09-021.3M2.9M44.5%62,313
2026-09-011.1M2.1M53.1%426
2026-08-31675K1.9M35.6%427
2026-08-281.1M2.1M50.7%507

Fails to deliver

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

As of 27 August 2026, the fails-to-deliver balance in ON is 148 shares, down 1,648 shares over the last settlement date. Over the last 30 readings it ranged from 4 shares (4 June 2026) to 53,189 shares (7 August 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-27148$73.22$11K
2026-08-251,796$71.93$129K
2026-08-1946$79.42$4K
2026-08-1422$81.56$2K
2026-08-113,695$79.78$295K
2026-08-0753,189$78.33$4.2M
2026-08-0626$76.91$2K
2026-08-045,806$80.40$467K
2026-08-038,022$81.61$655K
2026-07-3122,378$83.74$1.9M
2026-07-2176$86.70$7K
2026-07-20656$87.37$57K
2026-07-17108$88.12$10K
2026-07-1020$97.87$2K
2026-07-0929,758$93.79$2.8M
2026-07-02448$94.63$42K
2026-06-261,302$118.74$155K
2026-06-2517$115.74$2K
2026-06-24385$117.06$45K
2026-06-235,626$131.55$740K
2026-06-2218,466$121.62$2.2M
2026-06-183,082$112.92$348K
2026-06-174$118.25$473
2026-06-1220,612$115.96$2.4M
2026-06-1025,397$117.00$3.0M
2026-06-091,213$120.90$147K
2026-06-081,865$117.26$219K
2026-06-0537,530$131.82$4.9M
2026-06-044$133.93$536
2026-06-02577$120.92$70K

Insider trades

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

Insiders at ON reported 1 open-market sell worth $1.2M in the last 90 days and no open-market buys. Latest filing: MASCARENAS PAUL ANTHONY (Director) on 2026-10-02.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-10-02MASCARENAS PAUL ANTHONYDirectorGrant126$84.89$11K58K
2026-10-01GOPALSWAMY SUDHIRGroup President, AMG & ISGSell16K$80.00$1.2M158K
2026-07-02MASCARENAS PAUL ANTHONYDirectorGrant116$91.22$11K58K
2026-05-26GOPALSWAMY SUDHIRGroup President, AMG & ISGTax withholding470$127.00$60K174K
2026-05-14WATERS GREGORY LDirectorGrant2K$0.00$025K
2026-05-14Yan Christine YDirectorGrant2K$0.00$049K
2026-05-14MASCARENAS PAUL ANTHONYDirectorGrant2K$0.00$057K
2026-05-14KIDDOO BRUCE EDirectorGrant2K$0.00$019K
2026-05-14Deitrich ThomasDirectorGrant2K$0.00$026K
2026-05-14CARTER SUSAN KDirectorGrant2K$0.00$026K
2026-04-24Thad TrentExec VP & CFOSell30K$100.00$3.0M271K
2026-04-23Thad TrentExec VP & CFOSell30K$93.00$2.8M301K
2026-04-16Thad TrentExec VP & CFOSell30K$80.00$2.4M331K
2026-04-03MASCARENAS PAUL ANTHONYDirectorGrant168$62.19$10K55K
2026-03-13GOPALSWAMY SUDHIRGroup President, AMG & ISGSell6K$58.67$359K174K
2026-02-21Thad TrentExec VP & CFOTax withholding10K$69.11$718K361K
2026-02-21KEETON SIMONGroup President, PSGTax withholding8K$69.11$538K214K
2026-02-21GOPALSWAMY SUDHIRGroup President, AMG & ISGTax withholding10K$69.11$662K180K
2026-02-21El-Khoury HassaneCEO & PresidentTax withholding37K$69.11$2.5M1.1M
2026-02-20Thad TrentExec VP & CFOTax withholding4K$69.11$288K371K
2026-02-20Thad TrentExec VP & CFOGrant36K$0.00$0376K
2026-02-20KEETON SIMONGroup President, PSGTax withholding3K$69.11$216K222K
2026-02-20KEETON SIMONGroup President, PSGGrant26K$0.00$0225K
2026-02-20GOPALSWAMY SUDHIRGroup President, AMG & ISGTax withholding1K$69.11$101K190K
2026-02-20GOPALSWAMY SUDHIRGroup President, AMG & ISGGrant32K$0.00$0191K
2026-02-20El-Khoury HassaneCEO & PresidentGrant75K$0.00$01.1M
2026-02-17KEETON SIMONGroup President, PSGSell44K$71.77$3.2M199K
2026-02-17KEETON SIMONGroup President, PSGSell5K$71.56$329K243K
2026-02-12Thad TrentExec VP & CFOSell50K$70.87$3.5M339K
2026-02-12Thad TrentExec VP & CFOSell7K$72.88$510K389K
2026-02-12Thad TrentExec VP & CFOSell2K$73.39$161K396K
2026-02-12Thad TrentExec VP & CFOSell1K$71.70$93K398K
2026-02-12El-Khoury HassaneCEO & PresidentSell20K$73.02$1.5M1.0M
2026-02-12El-Khoury HassaneCEO & PresidentSell100$73.56$7K1.0M
2026-02-12KIDDOO BRUCE EDirectorGift4K$0.00$017K
2026-02-10Thad TrentExec VP & CFOTax withholding7K$67.38$452K399K
2026-02-10KEETON SIMONGroup President, PSGTax withholding5K$67.38$339K248K
2026-02-10GOPALSWAMY SUDHIRGroup President, AMG & ISGTax withholding6K$67.38$417K159K
2026-02-10El-Khoury HassaneCEO & PresidentTax withholding21K$67.38$1.4M1.0M
2026-02-06Thad TrentExec VP & CFOTax withholding12K$65.20$800K406K
2026-02-06KEETON SIMONGroup President, PSGTax withholding9K$65.20$602K253K
2026-02-06GOPALSWAMY SUDHIRGroup President, AMG & ISGTax withholding6K$65.20$394K165K
2026-02-06El-Khoury HassaneCEO & PresidentTax withholding34K$65.20$2.2M1.1M
2026-02-05Thad TrentExec VP & CFOGrant3K$0.00$0418K
2026-02-05Thad TrentExec VP & CFOGrant4K$0.00$0415K
2026-02-05Thad TrentExec VP & CFOGrant31K$0.00$0411K
2026-02-05KEETON SIMONGroup President, PSGGrant3K$0.00$0262K
2026-02-05KEETON SIMONGroup President, PSGGrant3K$0.00$0260K
2026-02-05KEETON SIMONGroup President, PSGGrant23K$0.00$0256K
2026-02-05GOPALSWAMY SUDHIRGroup President, AMG & ISGGrant401$0.00$0171K

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

14 Form 144 notices on file for ON worth $31.2M at the prices reported; 1 in the last 90 days worth $1.2M. Latest: GOPALSWAMY SUDHIR filed on 2026-10-01 to sell 15,578 shares ($1.2M) from 2026-10-01.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-10-01GOPALSWAMY SUDHIROfficer16K$1.2M0.004%2026-10-01Rockefeller Capital Management
2026-06-10ALAN CAMPBELLDirector17K$1.8M0.004%2026-06-10Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-03KEETON SIMONOfficer20K$2.6M0.005%2026-06-03Rockefeller Capital Managment
2026-05-15ALAN CAMPBELLDirector22K$2.5M0.006%2026-05-15Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-11SIMON KEETONOfficer31K$3.3M0.008%2026-05-11Morgan Stanley Smith Barney LLC Executive Financial Services
2026-04-24THAD TRENTOfficer30K$2.9M0.008%2026-04-24Morgan Stanley Smith Barney LLC Executive Financial Services
2026-04-23THAD TRENTOfficer30K$2.7M0.008%2026-04-23Morgan Stanley Smith Barney LLC Executive Financial Services
2026-04-16THAD TRENTOfficer30K$2.2M0.008%2026-04-16Morgan Stanley Smith Barney LLC Executive Financial Services
2026-03-13GOPALSWAMY SUDHIROfficer6K$359K0.002%2026-03-13Rockefeller Capital Management
2026-02-17SIMON KEETONOfficer49K$3.5M0.012%2026-02-17Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-12THAD TRENTOfficer60K$4.3M0.015%2026-02-12Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-12EL-KHOURY LIVING TRUSTOfficer, Director20K$1.5M0.005%2026-02-12Morgan Stanley Smith Barney LLC Executive Financial Services
2025-12-04SIMON KEETONOfficer21K$1.2M0.005%2025-12-04Morgan Stanley Smith Barney LLC Executive Financial Services
2025-12-03THAD TRENTOfficer20K$1.1M0.005%2025-12-03Morgan Stanley Smith Barney LLC Executive Financial Services

Large holders (13D and 13G)

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

4 holders report 5% or more of ON in their latest filing, all on Schedule 13G (passive). The largest reported stake is Abigail P. Johnson at 8.2% of the class (31,915,450 shares), filed 2026-10-07 for an event on 2026-09-30.

FiledFormHolderSharesOf classEvent
2026-10-0713G/Ano. 13Abigail P. Johnsonindividual31.9M8.2%2026-09-30
2026-10-0713G/Ano. 13FMR LLCparent holding company31.9M8.2%2026-09-30
2026-04-3013GVanguard Capital Managementinvestment adviser29.6M7.5%2026-03-31
2026-04-2913GVanguard Portfolio Managementinvestment adviser20.1M5.1%2026-03-31
2026-03-2713G/Ano. 14The Vanguard Groupinvestment adviser00.0%2026-03-13

13F holders

Tracked managers holding ON at their latest 13F. JSON

9 of the 30 tracked managers held ON at their latest 13F, $954.5M in total at quarter-end prices. Two Sigma Investments is the largest at $384.6M (0.3% of its portfolio) as of 2026-06-30. Over the prior quarter 7 added shares and 2 cut.

FundQuarterSharesValueOf portfolioChange in shares
Two Sigma Investments2026-06-304.1M$384.6M0.28%-385K
Citadel Advisors2026-06-301.9M$183.0M0.02%+1.8M
Point72 Asset Management2026-06-301.6M$151.8M0.17%new
D. E. Shaw & Co.2026-06-301.2M$110.2M0.05%+870K
AQR Capital Management2026-06-30629K$59.4M0.02%+220K
Renaissance Technologies2026-06-30248K$23.5M0.03%new
Soros Fund Management2026-06-30228K$21.6M0.26%new
Millennium Management2026-06-30157K$14.8M0.01%-85K
Bridgewater Associates2026-06-3058K$5.5M0.02%+38K

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 2026-07-03) ON Semiconductor reported revenue of $1.60B, up 9.2% from the same quarter a year earlier, and net income of $226.8M (0.56 diluted EPS). In FY 2025 it generated $1.76B of operating cash flow and spent $1.38B on buybacks. As of 2026-07-03, cash was $3.51B against $4.50B of debt.

Cash
$3.51B
Debt
$4.50B
Equity
$7.22B
Total assets
$13.49B
Shares outstanding
389,311,721

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 FY 20262026-07-03$1.60B$226.8M14.1%0.56
Q1 FY 20262026-04-03$1.51B-$33.4M-2.2%-0.08
Q4 FY 2025derived2025-12-31$1.53B$181.8M11.9%n/a
Q3 FY 20252025-10-03$1.55B$255.0M16.4%0.63
Q2 FY 20252025-07-04$1.47B$170.3M11.6%0.41
Q1 FY 20252025-04-04$1.45B-$486.1M-33.6%-1.15
Q4 FY 2024derived2024-12-31$1.72B$379.9M22.1%n/a
Q3 FY 20242024-09-27$1.76B$401.7M22.8%0.93

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$6.00B$121.0M$1.76B$341.2M$1.38Bn/a
FY 20242024-12-31$7.08B$1.57B$1.91B$694.0M$654.1Mn/a
FY 20232023-12-31$8.25B$2.18B$1.98B$1.54B$564.2Mn/a
FY 20222022-12-31$8.33B$1.90B$2.63B$1.04B$259.8Mn/a
FY 20212021-12-31$6.74B$1.01B$1.78B$444.6M$0n/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 the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-07-03; shares outstanding as of 2026-07-29 from the cover page.

What this page is

ON Semiconductor 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 ON Semiconductor (ON), SEC CIK 1097864, 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 2026-09-30.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-09.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-08-27.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 2026-10-01.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 2026-10-07.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 2026-07-03.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 2026-10-02.JSON and CSV
Company record
EDGAR filing index for CIK 1097864Ticker, 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 ON is sold short?
30,002,949 shares were held short at the 2026-09-30 settlement, 2.4 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 ON's daily short volume?
On 2026-10-09, 1,715,249 of the 3,930,685 ON shares reported to FINRA were sold short, 43.6% of the day's reported volume. Short volume is a flow for one day, not a position.
Does ON have fails to deliver?
The SEC's latest file shows 148 ON shares failed to deliver at settlement 2026-08-27. Fails are reported per settlement date and published twice a month with a lag.
Are ON insiders buying or selling?
Insiders at ON reported 1 open-market sell worth $1.2M in the last 90 days and no open-market buys. Latest filing: MASCARENAS PAUL ANTHONY (Director) on 2026-10-02.
Have ON insiders filed to sell?
14 Form 144 notices on file for ON worth $31.2M at the prices reported; 1 in the last 90 days worth $1.2M. Latest: GOPALSWAMY SUDHIR filed on 2026-10-01 to sell 15,578 shares ($1.2M) from 2026-10-01.
Who owns 5% or more of ON?
4 holders report 5% or more of ON in their latest filing, all on Schedule 13G (passive). The largest reported stake is Abigail P. Johnson at 8.2% of the class (31,915,450 shares), filed 2026-10-07 for an event on 2026-09-30.
What did ON report last quarter?
In Q2 FY 2026 (quarter ended 2026-07-03) ON Semiconductor reported revenue of $1.60B, up 9.2% from the same quarter a year earlier, and net income of $226.8M (0.56 diluted EPS). In FY 2025 it generated $1.76B of operating cash flow and spent $1.38B on buybacks. As of 2026-07-03, cash was $3.51B against $4.50B of debt.
Which tracked 13F managers own ON?
9 of the 30 tracked 13F managers held ON shares at their latest filing, $954.5M in all. The largest: Two Sigma Investments (4.1M shares, $384.6M), Ken Griffin's Citadel Advisors (1.9M shares, $183.0M), Steve Cohen's Point72 Asset Management (1.6M shares, $151.8M), D. E. Shaw & Co. (1.2M shares, $110.2M), Cliff Asness's AQR Capital Management (629K shares, $59.4M), Renaissance Technologies (248K shares, $23.5M). The table above lists all 9.

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