XOOMAR

Serve Robotics Inc. /DE/ (SERV)

Every FINRA and SEC series the site collects for Serve Robotics Inc. /DE/: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on Nasdaq, classified by the SEC as general industrial machinery & equipment, nec.

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27.2M

Short interest

settlement 2026-08-14

4.8

Days to cover

+2.6% vs prior

53.1%

Short share of volume

2026-09-11

50,086

Fails to deliver

settlement 2026-08-14

-$585K

Insider flow, 90 days

0 buys, 6 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 SERV is 27,166,256 shares, up 2,864,436 shares over the last month. Over the last 48 readings it ranged from 2,489,597 shares (13 December 2024) to 27,166,256 shares (14 August 2026). The latest reading sits at the top of that range. At the reported average volume of 5.6M shares a day that is 4.8 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-1427,166,256+2.6%5,641,3194.82
2026-07-3126,478,465+9.0%3,082,1288.59
2026-07-1524,301,820+9.2%2,683,2799.06
2026-06-3022,251,423-0.6%5,526,0464.03
2026-06-1522,379,200+5.5%6,480,5593.45
2026-05-2921,209,374-1.0%5,035,2984.21
2026-05-1521,421,077+0.1%4,662,0814.59
2026-04-3021,394,640+0.9%3,227,1686.63
2026-04-1521,204,255+5.8%3,023,0737.01
2026-03-3120,042,054+5.6%3,863,6705.19
2026-03-1318,973,434+8.1%4,974,1433.81
2026-02-2717,557,850-1.8%2,886,0996.08
2026-02-1317,880,003+4.7%4,637,2803.86
2026-01-3017,081,725+9.1%6,803,4122.51
2026-01-1515,651,452+2.4%9,686,9541.62
2025-12-3115,280,433+12.0%5,567,9262.74
2025-12-1513,639,020-6.8%8,941,7091.53
2025-11-2814,632,438+7.8%4,778,8083.06
2025-11-1413,574,048+8.4%6,260,9502.17
2025-10-3112,518,438+4.3%7,975,4251.57
2025-10-1512,005,352-15.2%21,624,3561.00
2025-09-3014,152,924+21.4%12,135,8471.17
2025-09-1511,657,709-0.8%7,684,0571.52
2025-08-2911,752,906+2.8%7,962,4511.48

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 11 September 2026, the short share of SERV volume is 53.1%, down 2.3 points over the last five sessions. Over the last 52 readings it ranged from 46.2% (16 July 2026) to 72.9% (11 August 2026). The latest reading is 8.0 points below the 30-session average of 61.1%, on 1.2M shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-11621K1.2M53.1%3,098
2026-09-101.2M1.8M65.9%2,994
2026-09-091.3M1.9M67.8%22,374
2026-09-08985K1.5M65.1%8,493
2026-09-04573K1.0M56.5%3,095
2026-09-03626K1.1M55.4%2,398
2026-09-02947K1.6M60.2%323
2026-09-01992K1.7M56.8%7,785
2026-08-31935K1.5M61.8%22,320
2026-08-28875K1.5M57.7%3,263
2026-08-27727K1.3M57.4%5,590
2026-08-26901K1.6M57.6%12,092
2026-08-251.9M2.9M66.1%31,872
2026-08-242.5M3.5M71.7%1,027
2026-08-211.7M3.2M53.7%32,259
2026-08-201.2M1.8M67.0%3,479
2026-08-191.2M2.4M52.1%4,278
2026-08-181.8M3.0M60.8%10,873
2026-08-172.3M3.5M65.0%18,735
2026-08-141.4M2.4M60.2%538
2026-08-131.5M2.4M59.5%1,769
2026-08-121.8M2.8M63.2%625
2026-08-112.3M3.2M72.9%83
2026-08-101.5M2.3M65.7%144,810
2026-08-072.5M4.3M57.8%320,210
2026-08-061.4M2.0M71.9%4,306
2026-08-05802K1.5M53.8%2,405
2026-08-041.3M1.9M64.9%1,356
2026-08-031.6M3.0M54.1%11,494
2026-07-31642K1.1M57.3%1,766

Fails to deliver

SEC, by settlement date. JSON

As of 14 August 2026, the fails-to-deliver balance in SERV is 50,086 shares, up 27,634 shares over the last settlement date. Over the last 52 readings it ranged from 70 shares (13 July 2026) to 332,939 shares (30 July 2026).

SettlementShares failedPriceValue
2026-08-1450,086$4.94$247K
2026-08-1322,452$4.83$108K
2026-08-12315,073$4.90$1.5M
2026-08-1184,345$4.92$415K
2026-08-1097,331$5.09$495K
2026-08-07110,482$5.68$628K
2026-08-0618,308$5.66$104K
2026-08-05173,811$5.69$989K
2026-08-04175,646$5.65$992K
2026-08-0314,849$4.78$71K
2026-07-3173$4.81$351
2026-07-30332,939$4.37$1.5M
2026-07-29150,526$4.70$707K
2026-07-2817,268$4.78$83K
2026-07-2437,725$5.04$190K
2026-07-23588$5.31$3K
2026-07-221,551$5.38$8K
2026-07-217,492$5.19$39K
2026-07-17510$5.27$3K
2026-07-163,331$5.75$19K
2026-07-154,341$5.82$25K
2026-07-1412,395$5.79$72K
2026-07-1370$5.92$414
2026-07-10829$6.04$5K
2026-07-0994,393$5.89$556K
2026-07-08155,338$6.05$940K
2026-07-078,908$6.45$57K
2026-07-0615,638$6.31$99K
2026-07-022,728$6.53$18K
2026-07-019,228$6.58$61K

Insider trades

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

Insiders at SERV reported 6 open-market sells worth $585K 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: Read Brian (Chief Financial Officer) on 2026-08-19.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-08-19Read BrianChief Financial OfficerSell10K$4.80$47K276K
2026-08-18Read BrianChief Financial OfficerSell6K$4.56$28K286K
2026-08-18Parang TourajPresident &amp; COOSell20K$4.56$90K1.3M
2026-08-18Parang TourajPresident &amp; COOSell18K$4.53$82K1.3M
2026-08-18Kashani AliChief Executive OfficerSell45K$4.56$206K3.2M
2026-08-17Read BrianChief Financial OfficerSell25K$5.24$132K292K
2026-06-10Read BrianChief Financial OfficerSell1K$7.24$11K317K
2026-06-10Parang TourajPresident &amp; COOSell4K$7.24$31K1.3M
2026-06-10Kashani AliChief Executive OfficerSell16K$7.24$115K3.3M
2026-05-07Read BrianChief Financial OfficerSell201$9.26$2K319K
2026-05-07Parang TourajPresident &amp; COOSell4K$9.26$36K1.3M
2026-05-07Kashani AliChief Executive OfficerSell15K$9.26$136K3.3M
2026-05-06Read BrianChief Financial OfficerSell3K$9.29$26K319K
2026-05-06Parang TourajPresident &amp; COOSell6K$9.29$56K1.3M
2026-05-06Kashani AliChief Executive OfficerSell12K$9.29$109K3.3M
2026-05-01Read BrianChief Financial OfficerSell1K$9.29$11K322K
2026-04-08Read BrianChief Financial OfficerSell200$8.62$2K323K
2026-04-08Parang TourajPresident &amp; COOSell4K$8.62$33K1.3M
2026-04-08Kashani AliChief Executive OfficerSell15K$8.62$125K3.3M
2026-03-31Read BrianChief Financial OfficerSell1K$8.03$10K323K
2026-03-13Armenta AnthonyChief Software &amp; Data OfficerSell4K$9.82$35K541K
2026-03-10Read BrianChief Financial OfficerSell203$9.72$2K324K
2026-03-10Parang TourajPresident &amp; COOSell4K$9.72$38K1.3M
2026-03-10Kashani AliChief Executive OfficerSell14K$9.72$131K3.3M
2026-03-10Abraham EuanChief Hardware &amp; Mftg OffcrSell1K$9.72$14K236K
2026-03-06Dunn EvanGeneral CounselSell538$9.44$5K202K
2026-03-03Read BrianChief Financial OfficerSell1K$9.61$12K324K
2026-02-13Armenta AnthonyChief Software &amp; Data OfficerSell3K$9.38$32K544K
2026-02-11Read BrianChief Financial OfficerSell185$10.17$2K326K
2026-02-11Parang TourajPresident &amp; COOSell4K$10.17$36K1.3M
2026-02-11Kashani AliChief Executive OfficerSell9K$10.17$94K3.3M
2026-02-11Abraham EuanChief Hardware &amp; Mftg OffcrSell1K$10.17$14K237K
2026-02-06Dunn EvanGeneral CounselSell688$9.56$7K203K
2026-02-04Read BrianChief Financial OfficerSell3K$10.33$33K326K
2026-02-04Parang TourajPresident &amp; COOSell6K$10.33$62K1.3M
2026-02-04Kashani AliChief Executive OfficerSell8K$10.33$84K3.4M
2026-02-04Dunn EvanGeneral CounselSell3K$10.33$28K204K
2026-02-04Armenta AnthonyChief Software &amp; Data OfficerSell3K$10.33$33K548K
2026-02-04Abraham EuanChief Hardware &amp; Mftg OffcrSell3K$10.33$34K238K
2026-02-03Read BrianChief Financial OfficerSell2K$10.83$17K329K
2026-01-13Armenta AnthonyChief Software &amp; Data OfficerSell4K$14.27$56K551K
2026-01-08Read BrianChief Financial OfficerSell5K$15.88$72K331K
2026-01-08Read BrianChief Financial OfficerSell220$14.30$3K335K
2026-01-08Parang TourajPresident &amp; COOSell4K$14.30$57K1.3M
2026-01-08Kashani AliChief Executive OfficerSell9K$14.30$130K3.4M
2026-01-08Abraham EuanChief Hardware &amp; Mftg OffcrSell1K$14.30$17K242K
2026-01-06Dunn EvanGeneral CounselSell598$12.81$8K206K
2025-12-31Read BrianChief Financial OfficerSell2K$10.37$19K335K
2025-12-15Armenta AnthonyChief Software &amp; Data OfficerSell5K$11.96$60K555K
2025-12-12Read BrianChief Financial OfficerSell7K$13.15$88K337K

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

7 Form 144 notices on file for SERV worth $718K at the prices reported; 7 in the last 90 days worth $718K. Latest: Read Brian filed on 2026-08-19 to sell 9,700 shares ($47K) from 2026-08-19.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-08-19Read BrianOfficer10K$47K0.011%2026-08-19Fidelity Brokerage Services LLC
2026-08-18Read BrianOfficer6K$28K0.007%2026-08-18Fidelity Brokerage Services LLC
2026-08-18Parang TourajOfficer, Director20K$90K0.023%2026-08-18Fidelity Brokerage Services LLC
2026-08-18Parang TourajOfficer, Director18K$82K0.021%2026-08-18Fidelity Brokerage Services LLC
2026-08-18Kashani AliOfficer, Director45K$206K0.052%2026-08-18Fidelity Brokerage Services LLC
2026-08-17Read BrianOfficer25K$132K0.029%2026-08-17Fidelity Brokerage Services LLC
2026-08-17Read BrianOfficer25K$132K0.029%2026-08-17Fidelity Brokerage Services LLC

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

1 holder above 5% has filed on SERV, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 7.7% of the class (5,922,044 shares), filed 2026-07-30 for an event on 2026-06-30.

FiledFormHolderSharesOf classEvent
2026-07-3013G/Ano. 1BlackRock, Inc.parent holding company5.9M7.7%2026-06-30

13F holders

Tracked managers holding SERV at their latest 13F. JSON

3 of the 30 tracked managers held SERV at their latest 13F, $19.9M in total at quarter-end prices. Citadel Advisors is the largest at $18.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 1 cut.

FundQuarterSharesValueOf portfolioChange in shares
Citadel Advisors2026-06-302.8M$18.6M0.00%+237K
Millennium Management2026-06-30133K$874K0.00%+113K
D. E. Shaw & Co.2026-06-3065K$428K0.00%-50K

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 2026-06-30) Serve Robotics Inc. /DE/ reported revenue of $3.2M, up 404.4% from the same quarter a year earlier, and net loss of $64.1M (-0.80 diluted EPS). In FY 2025 it generated -$80.2M of operating cash flow.

Cash
$79.1M
Equity
$351.8M
Total assets
$378.6M
Shares outstanding
86,707,507

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 20262026-06-30$3.2M-$64.1M-1980.5%-0.80
Q1 20262026-03-31$3.0M-$49.0M-1642.2%-0.65
Q4 2025derived2025-12-31$882K-$34.3M-3885.9%n/a
Q3 20252025-09-30$687K-$33.0M-4806.4%-0.54
Q2 20252025-06-30$642K-$20.9M-3247.7%-0.36
Q1 20252025-03-31$440K-$13.2M-3003.9%-0.23
Q4 2024derived2024-12-31$176K-$13.1M-7441.8%n/a
Q3 20242024-09-30$222K-$8.0M-3601.8%-0.20

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$2.7M-$101.4M-$80.2M$37.3Mn/an/a
FY 20242024-12-31$1.8M-$39.2M-$21.5M$10.3Mn/an/a
FY 20232023-12-31$208K-$24.8M-$16.0M$5Kn/an/a
FY 20222022-12-31$108K-$21.9M-$21.4M$3.6Mn/an/a
FY 20212021-12-31n/a-$55K-$52Kn/an/an/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 2026-06-30; shares outstanding as of 2026-08-04 from the cover page.

What this page is

Serve Robotics Inc. /DE/ 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 Serve Robotics Inc. /DE/ (SERV), SEC CIK 1832483, listed on Nasdaq, classified by the SEC as general industrial machinery & equipment, nec. 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 2026-08-14.JSON and CSV
Planned sales
SEC EDGAR Form 144EDGAR read every 30 minutes; a notice is filed on or before the sell order. Latest 2026-08-19.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 2026-07-30.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 2026-06-30.JSON and CSV
Insider trades
SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-08-19.JSON and CSV
Company record
EDGAR filing index for CIK 1832483Ticker, 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 SERV is sold short?
27,166,256 shares were held short at the 2026-08-14 settlement, 4.8 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 SERV's daily short volume?
On 2026-09-11, 620,848 of the 1,168,698 SERV shares reported to FINRA were sold short, 53.1% of the day's reported volume. Short volume is a flow for one day, not a position.
Does SERV have fails to deliver?
The SEC's latest file shows 50,086 SERV shares failed to deliver at settlement 2026-08-14. Fails are reported per settlement date and published twice a month with a lag.
Are SERV insiders buying or selling?
Insiders at SERV reported 6 open-market sells worth $585K 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: Read Brian (Chief Financial Officer) on 2026-08-19.
Have SERV insiders filed to sell?
7 Form 144 notices on file for SERV worth $718K at the prices reported; 7 in the last 90 days worth $718K. Latest: Read Brian filed on 2026-08-19 to sell 9,700 shares ($47K) from 2026-08-19.
Who owns more than 5% of SERV?
1 holder above 5% has filed on SERV, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 7.7% of the class (5,922,044 shares), filed 2026-07-30 for an event on 2026-06-30.
What did SERV report last quarter?
In Q2 2026 (quarter ended 2026-06-30) Serve Robotics Inc. /DE/ reported revenue of $3.2M, up 404.4% from the same quarter a year earlier, and net loss of $64.1M (-0.80 diluted EPS). In FY 2025 it generated -$80.2M of operating cash flow.
Which funds hold SERV?
3 of the 30 tracked managers held SERV at their latest 13F, $19.9M in total at quarter-end prices. Citadel Advisors is the largest at $18.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 1 cut.

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