XOOMAR

PubMatic (PUBM)

PubMatic 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 services-computer programming, data processing, etc..

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3.1M

Short interest

settlement 2026-10-15

4.7

Days to cover

+1.5 days vs prior

61.6%

Short share of volume

2026-10-28

357

Fails to deliver

settlement 2026-09-25

Tue 10 Nov

Next earnings

estimated date

-$10.9M

Insider flow, 90 days

0 buys, 29 sells

As of 2026-10-28.

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 PUBM is 3,074,341 shares, up 635,359 shares over the last month. Over the last 48 readings it ranged from 947,464 shares (14 February 2025) to 3,074,341 shares (15 October 2026). The latest reading sits at the top of that range. At the reported average volume of 655K shares a day that is 4.7 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-10-153,074,341+13.1%654,9404.69
2026-09-302,719,494+11.5%853,6543.19
2026-09-152,438,982+7.7%571,0244.27
2026-08-312,264,271+9.4%627,2233.61
2026-08-142,070,275-7.9%1,052,0861.97
2026-07-312,247,700-23.7%427,6425.26
2026-07-152,944,796-1.7%437,1106.74
2026-06-302,996,126+7.9%636,6874.71
2026-06-152,775,994+7.7%607,6234.57
2026-05-292,578,479+1.6%708,5673.64
2026-05-152,537,789+15.2%862,7792.94
2026-04-302,202,583+15.3%570,9443.86
2026-04-151,911,135-0.4%619,9983.08
2026-03-311,919,181+13.1%691,9512.77
2026-03-131,697,064-5.7%977,0541.74
2026-02-271,799,363-2.8%815,8762.21
2026-02-131,850,905+12.2%804,0052.30
2026-01-301,649,483-7.1%521,6093.16
2026-01-151,775,623-8.7%526,8703.37
2025-12-311,944,568-10.7%426,2804.56
2025-12-152,176,599-11.4%581,9253.74
2025-11-282,456,141-10.2%719,3623.41
2025-11-142,733,656+12.8%1,651,9931.65
2025-10-312,422,828+4.4%517,9134.68
2025-10-152,320,369+12.2%731,3013.17
2025-09-302,068,816+11.3%528,3343.92
2025-09-151,859,486+6.6%523,2883.55
2025-08-291,744,047-7.3%696,2152.51
2025-08-151,882,017+21.2%1,063,3391.77
2025-07-311,552,425-7.9%497,0083.12
2025-07-151,685,133+5.2%505,8163.33
2025-06-301,601,283-16.8%680,3022.35
2025-06-131,924,600+6.8%532,1163.62
2025-05-301,802,889+10.2%561,3253.21
2025-05-151,635,975+2.9%733,8272.23
2025-04-301,589,390+11.6%582,3192.73
2025-04-151,424,675-0.4%599,0762.38
2025-03-311,430,387-2.6%577,8382.48
2025-03-141,468,637+35.3%807,4471.82
2025-02-281,085,745+14.6%571,9131.90
2025-02-14947,464-11.9%345,8242.74
2025-01-311,075,001-2.8%289,5833.71
2025-01-151,105,353+4.0%303,2483.65
2024-12-311,062,284+1.6%269,0023.95
2024-12-131,045,125-6.2%318,3393.28
2024-11-291,113,887-13.6%462,6902.41
2024-11-151,289,322-5.5%486,6632.65
2024-10-311,364,660-2.2%261,2895.22

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 28 October 2026, the short share of PUBM volume is 61.6%, down 12.8 points over the last five sessions. Over the last 30 readings it ranged from 52.1% (19 October 2026) to 81.7% (23 October 2026). The latest reading is 6.9 points below the 30-session average of 68.5%, on 86K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-2853K86K61.6%0
2026-10-2758K88K65.4%0
2026-10-2690K132K68.6%40
2026-10-2375K92K81.7%0
2026-10-2297K119K81.6%0
2026-10-2185K114K74.4%0
2026-10-2091K143K64.0%0
2026-10-1985K163K52.1%0
2026-10-16189K327K57.7%56,905
2026-10-15242K327K74.0%1,700
2026-10-14107K172K62.0%0
2026-10-13145K202K71.4%0
2026-10-1282K122K67.7%0
2026-10-0996K141K67.8%5
2026-10-08232K296K78.4%1,671
2026-10-07128K186K69.0%0
2026-10-06198K257K77.3%0
2026-10-05104K162K64.5%100
2026-10-02214K366K58.5%271
2026-10-01180K242K74.4%16
2026-09-30142K237K59.9%599
2026-09-29183K229K79.8%9,116
2026-09-28138K240K57.4%0
2026-09-25218K299K72.8%0
2026-09-24474K628K75.6%0
2026-09-23178K241K73.7%55
2026-09-22106K173K61.6%153
2026-09-21159K285K55.6%300
2026-09-18134K184K72.8%0
2026-09-17305K411K74.2%500

Fails to deliver

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

As of 25 September 2026, the fails-to-deliver balance in PUBM is 357 shares, up 157 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (9 July 2026) to 15,536 shares (19 May 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-09-25357$18.55$7K
2026-09-21200$17.55$4K
2026-09-044,839$16.96$82K
2026-08-24300$16.41$5K
2026-08-1415,526$17.28$268K
2026-07-2815$12.79$192
2026-07-20666$12.73$8K
2026-07-1631$13.80$428
2026-07-091$13.16$13
2026-07-0812$13.32$160
2026-07-025$13.83$69
2026-07-01196$13.12$3K
2026-06-30370$13.07$5K
2026-06-29199$12.65$3K
2026-06-251,351$11.92$16K
2026-06-22500$11.30$6K
2026-06-1544$11.35$499
2026-06-041,032$11.38$12K
2026-06-0353$12.04$638
2026-06-02575$12.22$7K
2026-05-2939$11.44$446
2026-05-282,953$11.05$33K
2026-05-1915,536$9.91$154K
2026-05-14335$9.48$3K
2026-05-1213,512$9.88$133K
2026-05-04644$10.23$7K
2026-04-30267$9.72$3K
2026-03-23600$7.99$5K
2026-03-184$8.17$33
2026-03-02620$8.10$5K

Insider trades

SEC Form 4, newest first. JSON

Insiders at PUBM reported 29 open-market sells worth $10.9M in the last 90 days and no open-market buys. Latest filing: Goel Rajeev K. (CHIEF EXECUTIVE OFFICER) on 2026-10-22.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-10-22Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell50K$17.26$863K32K
2026-10-22Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion34Kprice not stated in the filingnot stated82K
2026-10-16Kumar MukulPRESIDENT, ENGINEERINGSell3K$17.78$46K117K
2026-10-16Kumar MukulPRESIDENT, ENGINEERINGSell5K$16.80$91K125K
2026-10-16Kumar MukulPRESIDENT, ENGINEERINGConversion8K$0.00$0133K
2026-10-05Pantelick StevenCHIEF FINANCIAL OFFICERSell22K$18.66$414K10K
2026-10-05Goel Amar K.CHAIRMAN, CHIEF INNOVATION OFFSell11K$18.66$201K36K
2026-10-05Woods AndrewGENERAL COUNSEL & SECRETARYSell10K$18.65$188K40K
2026-10-02Goel Amar K.CHAIRMAN, CHIEF INNOVATION OFFSell651$19.43$13K46K
2026-10-02Goel Amar K.CHAIRMAN, CHIEF INNOVATION OFFSell7K$18.93$126K47K
2026-10-02Kumar MukulPRESIDENT, ENGINEERINGSell702$19.43$14K125K
2026-10-02Kumar MukulPRESIDENT, ENGINEERINGSell7K$18.93$136K126K
2026-10-02Pantelick StevenCHIEF FINANCIAL OFFICERSell2K$19.43$41K33K
2026-10-02Pantelick StevenCHIEF FINANCIAL OFFICERSell21K$18.93$405K35K
2026-10-02Woods AndrewGENERAL COUNSEL & SECRETARYSell512$19.43$10K50K
2026-10-02Woods AndrewGENERAL COUNSEL & SECRETARYSell5K$18.93$99K50K
2026-10-02Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell4K$19.43$87K47K
2026-10-02Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell46K$18.93$866K52K
2026-10-01Goel Amar K.CHAIRMAN, CHIEF INNOVATION OFFExercise or conversion18K$0.00$054K
2026-10-01Kumar MukulPRESIDENT, ENGINEERINGExercise or conversion20K$0.00$0133K
2026-10-01Pantelick StevenCHIEF FINANCIAL OFFICERExercise or conversion46K$0.00$056K
2026-10-01Woods AndrewGENERAL COUNSEL & SECRETARYExercise or conversion16K$0.00$056K
2026-10-01Goel Rajeev K.CHIEF EXECUTIVE OFFICERExercise or conversion98K$0.00$098K
2026-10-01Gimbel LisaCHIEF ACCOUNTING OFFICERSell500$18.99$9K16K
2026-09-24Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell40K$18.54$749K0
2026-09-24Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell10K$18.05$182K40K
2026-09-24Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion34Kprice not stated in the filingnot stated50K
2026-09-16Kumar MukulPRESIDENT, ENGINEERINGSell8K$16.78$134K113K
2026-09-16Kumar MukulPRESIDENT, ENGINEERINGConversion8K$0.00$0121K
2026-09-03Goel Amar K.CHAIRMAN, CHIEF INNOVATION OFFSell6K$17.04$107K36K
2026-09-03Goel Amar K.CHAIRMAN, CHIEF INNOVATION OFFConversion6Kprice not stated in the filingnot stated42K
2026-09-01Gimbel LisaCHIEF ACCOUNTING OFFICERSell500$16.43$8K16K
2026-08-20Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell50K$16.49$824K16K
2026-08-20Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion34Kprice not stated in the filingnot stated66K
2026-08-17Kumar MukulPRESIDENT, ENGINEERINGSell8K$17.05$136K113K
2026-08-17Kumar MukulPRESIDENT, ENGINEERINGConversion8K$0.00$0121K
2026-08-15Gimbel LisaCHIEF ACCOUNTING OFFICERExercise or conversion794$0.00$018K
2026-08-15Gimbel LisaCHIEF ACCOUNTING OFFICERExercise or conversion801$0.00$018K
2026-08-15Gimbel LisaCHIEF ACCOUNTING OFFICERExercise or conversion772$0.00$017K
2026-08-15Gimbel LisaCHIEF ACCOUNTING OFFICERExercise or conversion1K$0.00$016K
2026-08-13Pantelick StevenCHIEF FINANCIAL OFFICERSell20K$17.31$341K10K
2026-08-12Pantelick StevenCHIEF FINANCIAL OFFICERSell22K$17.25$383K30K
2026-08-12Gimbel LisaCHIEF ACCOUNTING OFFICERSell500$17.50$9K15K
2026-08-10Woods AndrewGENERAL COUNSEL & SECRETARYSell38K$17.96$688K40K
2026-08-07Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell211K$17.74$3.7M32K
2026-08-07Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion211Kprice not stated in the filingnot stated243K
2026-07-23Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell50K$12.35$617K32K
2026-07-23Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion13Kprice not stated in the filingnot stated82K
2026-07-23Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion22Kprice not stated in the filingnot stated69K
2026-07-16Woods AndrewGENERAL COUNSEL & SECRETARYSell3K$14.01$45K78K
2026-07-16Kumar MukulPRESIDENT, ENGINEERINGSell8K$13.67$109K113K
2026-07-16Kumar MukulPRESIDENT, ENGINEERINGConversion8K$0.00$0121K
2026-07-16Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell9K$13.94$125K47K
2026-07-16Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion9Kprice not stated in the filingnot stated56K
2026-07-15Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell4K$13.90$56K47K
2026-07-15Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion4Kprice not stated in the filingnot stated51K
2026-07-06Pantelick StevenCHIEF FINANCIAL OFFICERSell13K$13.42$168K52K
2026-07-06Klimenko PaulinaCHIEF GROWTH OFFICERSell9K$13.42$121K71K
2026-07-02Woods AndrewGENERAL COUNSEL & SECRETARYSell6K$13.65$79K81K
2026-07-02Pantelick StevenCHIEF FINANCIAL OFFICERSell24K$13.65$321K65K
2026-07-02Kumar MukulPRESIDENT, ENGINEERINGSell8K$13.65$108K113K
2026-07-02Klimenko PaulinaCHIEF GROWTH OFFICERSell15K$13.65$204K80K
2026-07-02Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell9K$13.90$118K47K
2026-07-02Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion9Kprice not stated in the filingnot stated56K
2026-07-02Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell50K$13.65$687K47K
2026-07-02Goel Amar K.CHAIRMAN, CHIEF INNOVATION OFFSell7K$13.65$90K36K
2026-07-01Woods AndrewGENERAL COUNSEL & SECRETARYExercise or conversion16K$0.00$087K
2026-07-01Pantelick StevenCHIEF FINANCIAL OFFICERExercise or conversion46K$0.00$088K
2026-07-01Kumar MukulPRESIDENT, ENGINEERINGExercise or conversion20K$0.00$0121K
2026-07-01Klimenko PaulinaCHIEF GROWTH OFFICERExercise or conversion34K$0.00$095K
2026-07-01Goel Rajeev K.CHIEF EXECUTIVE OFFICERExercise or conversion98K$0.00$098K
2026-07-01Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell17K$13.91$239K0
2026-07-01Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion17Kprice not stated in the filingnot stated17K
2026-07-01Goel Amar K.CHAIRMAN, CHIEF INNOVATION OFFExercise or conversion18K$0.00$042K
2026-06-18Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell43K$11.30$487K0
2026-06-18Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion22Kprice not stated in the filingnot stated43K
2026-06-08Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion44Kprice not stated in the filingnot stated65K
2026-06-08Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell44K$11.33$499K21K
2026-06-02Kumar MukulPRESIDENT, ENGINEERINGSell8K$11.96$96K101K
2026-06-02Kumar MukulPRESIDENT, ENGINEERINGConversion8K$0.00$0109K
2026-05-31Shulman Yakov (Jacob)DirectorExercise or conversion10K$0.00$018K
2026-05-31Glaser ShelaghDirectorExercise or conversion13K$0.00$022K
2026-05-26Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell44K$10.41$458K21K
2026-05-26Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion44Kprice not stated in the filingnot stated65K
2026-05-18Gimbel LisaCHIEF ACCOUNTING OFFICERSell1K$17.04$24K17K
2026-05-18Gimbel LisaCHIEF ACCOUNTING OFFICERSell3K$9.89$28K14K
2026-05-15Gimbel LisaCHIEF ACCOUNTING OFFICERExercise or conversion795$0.00$017K
2026-05-15Gimbel LisaCHIEF ACCOUNTING OFFICERExercise or conversion802$0.00$016K
2026-05-15Gimbel LisaCHIEF ACCOUNTING OFFICERExercise or conversion773$0.00$015K
2026-05-15Gimbel LisaCHIEF ACCOUNTING OFFICERExercise or conversion1K$0.00$014K
2026-05-14Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell44K$9.55$420K21K
2026-05-14Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion44Kprice not stated in the filingnot stated65K
2026-04-27Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell44K$9.78$430K21K
2026-04-27Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion44Kprice not stated in the filingnot stated65K
2026-04-13Goel Rajeev K.CHIEF EXECUTIVE OFFICERConversion17Kprice not stated in the filingnot stated65K
2026-04-13Goel Rajeev K.CHIEF EXECUTIVE OFFICERSell44K$8.65$381K21K
2026-04-06Pantelick StevenCHIEF FINANCIAL OFFICERSell16K$8.44$137K41K
2026-04-06Klimenko PaulinaCHIEF GROWTH OFFICERSell12K$8.44$99K61K
2026-04-02Woods AndrewGENERAL COUNSEL & SECRETARYSell6K$8.17$47K70K
2026-04-02Pantelick StevenCHIEF FINANCIAL OFFICERSell17K$8.17$137K58K

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

33 Form 144 notices on file for PUBM worth $12.3M at the prices reported; 15 in the last 90 days worth $9.2M. Latest: RAJEEV GOEL filed on 2026-10-22 to sell 50,021 shares ($873K) from 2026-10-22.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-10-22RAJEEV GOELDirector, Officer, 10% Stockholder50K$873K0.134%2026-10-22Morgan Stanley Smith Barney LLC Executive Financial Services
2026-10-05ANDREW WOODSOfficer10K$186K0.027%2026-10-05Morgan Stanley Smith Barney LLC Executive Financial Services
2026-10-05AMAR GOELDirector, Officer, 10% Stockholder11K$199K0.029%2026-10-05Morgan Stanley Smith Barney LLC Executive Financial Services
2026-10-05STEVE PANTELICKOfficer22K$408K0.059%2026-10-05Morgan Stanley Smith Barney LLC Executive Financial Services
2026-09-24RAJEEV GOELDirector, Officer, 10% Stockholder50K$881K0.135%2026-09-24Morgan Stanley Smith Barney LLC Executive Financial Services
2026-09-16MUKUL KUMAROfficer23K$386K0.062%2026-09-16Morgan Stanley Smith Barney LLC Executive Financial Services
2026-09-03AMAR GOELDirector, Officer, 10% Stockholder6K$109K0.017%2026-09-03Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-26PAULINA KLIMENKODirector31K$508K0.083%2026-08-26Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-20RAJEEV GOELDirector, Officer, 10% Stockholder50K$839K0.134%2026-08-20Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-13STEVE M PANTELICKOfficer20K$341K0.053%2026-08-13Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-12STEVE PANTELICKOfficer22K$392K0.060%2026-08-12Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-12PAULINA KLIMENKODirector40K$688K0.107%2026-08-12Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-12LISA GIMBELOfficer2K$35K0.005%2026-08-12Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-07ANDREW WOODSOfficer38K$517K0.103%2026-08-07Morgan Stanley Smith Barney LLC Executive Financial Services
2026-08-07RAJEEV GOELDirector, Officer, 10% Stockholder211K$2.8M0.566%2026-08-07Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-23RAJEEV GOELDirector, Officer, 10% Stockholder50K$632K0.131%2026-07-23Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-16ANDREW WOODSOfficer4K$51K0.010%2026-07-16Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-16RAJEEV GOELDirector, Officer, 10% Stockholder9K$124K0.023%2026-07-16Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-15RAJEEV GOELDirector, Officer, 10% Stockholder4K$56K0.011%2026-07-15Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-06STEVE PANTELICKOfficer13K$170K0.033%2026-07-06Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-06PAULINA KLIMENKOOfficer9K$122K0.024%2026-07-06Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-02RAJEEV GOELDirector, Officer, 10% Stockholder9K$118K0.022%2026-07-02Morgan Stanley Smith Barney LLC Executive Financial Services
2026-07-01RAJEEV GOELDirector, Officer, 10% Stockholder17K$225K0.045%2026-07-01Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-18RAJEEV GOELDirector, Officer, 10% Stockholder43K$487K0.113%2026-06-18Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-02MUKUL KUMAROfficer24K$293K0.063%2026-06-02Morgan Stanley Smith Barney LLC Executive Financial Services
2026-04-06STEVE PANTELICKOfficer16K$135K0.042%2026-04-06Morgan Stanley Smith Barney LLC Executive Financial Services
2026-04-06PAULINA KLIMENKOOfficer12K$97K0.030%2026-04-06Morgan Stanley Smith Barney LLC Executive Financial Services
2026-01-06PAULINA KLIMENKOOfficer12K$108K0.032%2026-01-06Morgan Stanley Smith Barney LLC Executive Financial Services
2026-01-06AMAR GOELDirector, Officer, 10% Stockholder7K$63K0.019%2026-01-06Morgan Stanley Smith Barney LLC Executive Financial Services
2026-01-05STEVE PANTELICKOfficer18K$158K0.048%2026-01-05Morgan Stanley Smith Barney LLC Executive Financial Services
2025-10-03STEVE PANTELICKOfficer15K$126K0.041%2025-10-03Morgan Stanley Smith Barney LLC Executive Financial Services
2025-10-03PAULINA KLIMENKOOfficer10K$87K0.028%2025-10-03Morgan Stanley Smith Barney LLC Executive Financial Services
2025-10-03AMAR GOELDirector, Officer, 10% Stockholder8K$66K0.021%2025-10-03Morgan Stanley Smith Barney LLC Executive Financial Services

Large holders (13D and 13G)

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

1 holder reports 5% or more of PUBM in its latest filing, on Schedule 13G (passive). The holder is BlackRock, Inc. at 7.1% of the class (2,708,504 shares), filed 2026-01-21 for an event on 2025-12-31.

FiledFormHolderSharesOf classEvent
2026-03-2713G/Ano. 5The Vanguard Groupinvestment adviser00.0%2026-03-13
2026-01-2113G/Ano. 2BlackRock, Inc.parent holding company2.7M7.1%2025-12-31

13F holders

Tracked managers holding PUBM at their latest 13F. JSON

7 of the 30 tracked managers held PUBM at their latest 13F, $39.0M in total at quarter-end prices. Renaissance Technologies is the largest at $18.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 3 cut.

FundQuarterSharesValueOf portfolioChange in shares
Renaissance Technologies2026-06-301.4M$18.6M0.03%-119K
Two Sigma Investments2026-06-30638K$8.4M0.01%+104K
Citadel Advisors2026-06-30415K$5.4M0.00%+266K
AQR Capital Management2026-06-30286K$3.8M0.00%+161K
Millennium Management2026-06-3086K$1.1M0.00%-6K
Point72 Asset Management2026-06-3079K$1.0M0.00%+57K
D. E. Shaw & Co.2026-06-3044K$581K0.00%-401K

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) PubMatic reported revenue of $78.6M, up 10.5% from the same quarter a year earlier, and net loss of $1.2M (-0.03 diluted EPS). In FY 2025 it generated $81.1M of operating cash flow and spent $46.5M on buybacks.

Cash
$120.0M
Equity
$238.7M
Total assets
$700.0M

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 FY 20262026-06-30$78.6M-$1.2M-1.5%-0.03
Q1 FY 20262026-03-31$62.6M-$12.5M-20.0%-0.27
Q4 FY 2025derived2025-12-31$80.0M$6.7M8.4%n/a
Q3 FY 20252025-09-30$68.0M-$6.5M-9.5%-0.14
Q2 FY 20252025-06-30$71.1M-$5.2M-7.3%-0.11
Q1 FY 20252025-03-31$63.8M-$9.5M-14.9%-0.20
Q4 FY 2024derived2024-12-31$85.5M$13.9M16.3%n/a
Q3 FY 20242024-09-30$71.8M-$912K-1.3%-0.02

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$282.9M-$14.5M$81.1M$14.3M$46.5Mn/a
FY 20242024-12-31$291.3M$12.5M$73.4M$17.6M$75.3Mn/a
FY 20232023-12-31$267.0M$8.9M$81.1M$10.6M$59.3Mn/a
FY 20222022-12-31$256.4M$28.7M$87.2M$35.9M$0n/a
FY 20212021-12-31$226.9M$56.6M$88.7M$30.4M$52Kn/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 2026-06-30.

What this page is

PubMatic 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 PubMatic (PUBM), SEC CIK 1422930, listed on Nasdaq, classified by the SEC as services-computer programming, data processing, etc.. 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 2026-10-28.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-25.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 2026-10-22.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 2026-03-27.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 2026-08-06.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 2026-10-22.JSON and CSV
Company record
EDGAR filing index for CIK 1422930Ticker, 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.

Other companies the SEC classifies as services-computer programming, data processing, etc.

Datasets

Frequently Asked Questions

How much of PUBM is sold short?
3,074,341 shares were held short at the 2026-10-15 settlement, 4.7 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 PUBM's daily short volume?
On 2026-10-28, 52,741 of the 85,574 PUBM shares reported to FINRA were sold short, 61.6% of the day's reported volume. Short volume is a flow for one day, not a position.
Does PUBM have fails to deliver?
The SEC's latest file shows 357 PUBM shares failed to deliver at settlement 2026-09-25. Fails are reported per settlement date and published twice a month with a lag.
Are PUBM insiders buying or selling?
Insiders at PUBM reported 29 open-market sells worth $10.9M in the last 90 days and no open-market buys. Latest filing: Goel Rajeev K. (CHIEF EXECUTIVE OFFICER) on 2026-10-22.
Have PUBM insiders filed to sell?
33 Form 144 notices on file for PUBM worth $12.3M at the prices reported; 15 in the last 90 days worth $9.2M. Latest: RAJEEV GOEL filed on 2026-10-22 to sell 50,021 shares ($873K) from 2026-10-22.
Who owns 5% or more of PUBM?
1 holder reports 5% or more of PUBM in its latest filing, on Schedule 13G (passive). The holder is BlackRock, Inc. at 7.1% of the class (2,708,504 shares), filed 2026-01-21 for an event on 2025-12-31.
What did PUBM report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) PubMatic reported revenue of $78.6M, up 10.5% from the same quarter a year earlier, and net loss of $1.2M (-0.03 diluted EPS). In FY 2025 it generated $81.1M of operating cash flow and spent $46.5M on buybacks.
Which tracked 13F managers own PUBM?
7 of the 30 tracked 13F managers held PUBM shares at their latest filing, $39.0M in all. The largest: Renaissance Technologies (1.4M shares, $18.6M), Two Sigma Investments (638K shares, $8.4M), Ken Griffin's Citadel Advisors (415K shares, $5.4M), Cliff Asness's AQR Capital Management (286K shares, $3.8M), Izzy Englander's Millennium Management (86K shares, $1.1M), Steve Cohen's Point72 Asset Management (79K shares, $1.0M). The table above lists all 7.

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