XOOMAR

Oklo Inc. (OKLO)

Every FINRA and SEC series the site collects for Oklo 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 electric services.

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32.2M

Short interest

settlement 2026-08-31

3.5

Days to cover

+23.9% vs prior

68.9%

Short share of volume

2026-09-11

9,456

Fails to deliver

settlement 2026-08-14

-$14.5M

Insider flow, 90 days

0 buys, 25 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 31 August 2026, short interest in OKLO is 32,200,754 shares, up 1,870,469 shares over the last month. Over the last 48 readings it ranged from 6,243,689 shares (13 September 2024) to 35,079,033 shares (15 May 2026). The latest reading sits at the top of that range. At the reported average volume of 9.3M shares a day that is 3.5 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-3132,200,754+23.9%9,264,7993.48
2026-08-1425,996,552-14.3%10,663,4462.44
2026-07-3130,330,285+8.6%9,193,0763.30
2026-07-1527,938,002+14.7%8,360,4803.34
2026-06-3024,368,308-10.5%11,004,9592.21
2026-06-1527,217,088-0.6%14,062,9671.94
2026-05-2927,370,539-22.0%14,539,9571.88
2026-05-1535,079,033+22.0%13,571,6962.58
2026-04-3028,744,756+0.5%18,978,4091.51
2026-04-1528,609,126+18.5%9,588,1922.98
2026-03-3124,135,016+14.2%9,669,1332.50
2026-03-1321,141,088+10.6%7,162,4602.95
2026-02-2719,121,070+6.2%6,550,0042.92
2026-02-1318,013,368+5.5%10,495,8081.72
2026-01-3017,071,258-0.4%13,244,5741.29
2026-01-1517,138,732+1.0%15,317,8091.12
2025-12-3116,969,485-17.9%8,443,5932.01
2025-12-1520,667,407+2.6%11,020,8011.88
2025-11-2820,142,849+8.2%14,513,0431.39
2025-11-1418,616,132+29.1%13,948,0541.33
2025-10-3114,424,084-11.8%18,947,0821.00
2025-10-1516,359,701+3.8%24,505,5681.00
2025-09-3015,754,689-8.2%30,833,5111.00
2025-09-1517,167,648+5.0%13,455,9611.28

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 11 September 2026, the short share of OKLO volume is 68.9%, up 21.3 points over the last five sessions. Over the last 52 readings it ranged from 35.0% (4 September 2026) to 68.9% (11 September 2026). The latest reading sits at the top of that range. The latest reading is 20.1 points above the 30-session average of 48.8%, on 9.1M shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-116.3M9.1M68.9%27,216
2026-09-102.1M4.2M49.5%1,195
2026-09-091.9M3.3M57.7%17,189
2026-09-082.9M6.1M48.7%12,940
2026-09-041.1M3.2M35.0%2,288
2026-09-031.6M3.3M47.6%8,075
2026-09-021.5M2.9M51.7%4,015
2026-09-011.8M3.5M50.7%36,864
2026-08-311.2M2.5M48.6%362
2026-08-282.5M4.8M51.6%67,754
2026-08-271.9M4.3M43.7%9,734
2026-08-264.1M7.7M52.6%7,821
2026-08-253.3M6.8M48.6%7,542
2026-08-241.6M3.3M49.8%3,130
2026-08-211.2M3.0M40.6%2,298
2026-08-201.4M2.5M56.4%567
2026-08-191.4M3.2M43.8%13,510
2026-08-181.7M3.4M48.9%17,685
2026-08-171.1M2.9M38.5%455
2026-08-141.5M3.2M47.2%2,932
2026-08-131.8M4.1M43.6%9,418
2026-08-121.7M3.6M45.4%1,143
2026-08-111.9M4.3M43.0%17,030
2026-08-102.7M6.0M45.0%4,155
2026-08-074.1M8.5M48.6%19,548
2026-08-062.0M3.9M51.8%44
2026-08-051.0M2.1M49.2%397
2026-08-041.7M3.4M50.3%1,297
2026-08-031.9M3.8M49.1%23,588
2026-07-311.7M3.0M56.8%1,993

Fails to deliver

SEC, by settlement date. JSON

As of 14 August 2026, the fails-to-deliver balance in OKLO is 9,456 shares, up 8,393 shares over the last settlement date. Over the last 52 readings it ranged from 34 shares (27 May 2026) to 995,065 shares (29 June 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-149,456$46.45$439K
2026-08-131,063$45.13$48K
2026-08-123,693$47.01$174K
2026-08-10123,619$48.42$6.0M
2026-08-077,107$42.19$300K
2026-08-0666$42.99$3K
2026-08-05392,786$43.33$17.0M
2026-08-0417,026$41.22$702K
2026-08-0329,410$38.83$1.1M
2026-07-3135,829$41.09$1.5M
2026-07-29276,221$39.58$10.9M
2026-07-2831,306$41.81$1.3M
2026-07-225,009$44.13$221K
2026-07-21107,709$41.51$4.5M
2026-07-20361,009$41.11$14.8M
2026-07-17150,132$41.70$6.3M
2026-07-161,202$45.69$55K
2026-07-151,502$46.24$69K
2026-07-1437,910$45.81$1.7M
2026-07-131,014$48.85$50K
2026-07-0962,311$47.28$2.9M
2026-07-0810,073$47.90$482K
2026-07-0719,799$51.84$1.0M
2026-07-0652,933$52.36$2.8M
2026-07-0245,243$52.45$2.4M
2026-07-01365,330$52.33$19.1M
2026-06-30882,527$52.76$46.6M
2026-06-29995,065$50.00$49.8M
2026-06-2686,529$51.01$4.4M
2026-06-25200$54.06$11K

Insider trades

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

Insiders at OKLO reported 25 open-market sells worth $14.5M 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: Bealmear Richard Craig (Chief Financial Officer) on 2026-09-02.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-09-02Bealmear Richard CraigChief Financial OfficerOption exercise6K$3.18$18K462K
2026-09-01Renner AlexandraChief Product OfficerSell2K$38.40$74K475K
2026-09-01DeWitte JacobCo-Founder, CEOSell200$39.15$8K529K
2026-09-01DeWitte JacobCo-Founder, CEOSell20K$38.88$770K530K
2026-09-01DeWitte JacobCo-Founder, CEOSell20K$38.56$771K496K
2026-09-01DeWitte JacobCo-Founder, CEOSell40K$38.40$1.5M432K
2026-09-01Cochran CarolineCo-Founder, COOSell20K$38.56$771K496K
2026-09-01Cochran CarolineCo-Founder, COOSell200$39.15$8K529K
2026-09-01Cochran CarolineCo-Founder, COOSell20K$38.88$770K530K
2026-09-01Cochran CarolineCo-Founder, COOSell40K$38.66$1.5M398K
2026-09-01Bealmear Richard CraigChief Financial OfficerSell16K$38.76$637K456K
2026-09-01Bealmear Richard CraigChief Financial OfficerOption exercise16K$3.18$52K472K
2026-08-25Narayanadas VivekGeneral Counsel &amp; SecretarySell223$40.80$9K8K
2026-08-24Renner AlexandraChief Product OfficerSell557$39.77$22K473K
2026-08-24Hanson JohnChief of StaffSell539$39.77$21K359K
2026-08-24Goodwin William Carroll MurphyChief Legal &amp; Strategy OfficerSell12K$39.77$461K45K
2026-08-04Bealmear Richard CraigChief Financial OfficerOption exercise6K$3.18$18K456K
2026-08-03DeWitte JacobCo-Founder, CEOSell4K$39.60$139K549K
2026-08-03DeWitte JacobCo-Founder, CEOSell17K$38.55$636K553K
2026-08-03DeWitte JacobCo-Founder, CEOSell7K$40.94$293K516K
2026-08-03DeWitte JacobCo-Founder, CEOSell13K$40.14$516K524K
2026-08-03DeWitte JacobCo-Founder, CEOSell40K$41.68$1.7M472K
2026-08-03Cochran CarolineCo-Founder, COOSell7K$40.94$293K516K
2026-08-03Cochran CarolineCo-Founder, COOSell13K$40.14$516K524K
2026-08-03Cochran CarolineCo-Founder, COOSell4K$39.60$139K549K
2026-08-03Cochran CarolineCo-Founder, COOSell17K$38.55$636K553K
2026-08-03Cochran CarolineCo-Founder, COOSell40K$41.35$1.7M438K
2026-08-03Bealmear Richard CraigChief Financial OfficerSell16K$38.80$638K450K
2026-08-03Bealmear Richard CraigChief Financial OfficerOption exercise16K$3.18$52K467K
2026-06-02Bealmear Richard CraigChief Financial OfficerOption exercise6K$3.18$19K445K
2026-06-01DeWitte JacobCo-Founder, CEOSell40K$69.10$2.8M609K
2026-06-01DeWitte JacobCo-Founder, CEOSell25K$67.75$1.7M538K
2026-06-01DeWitte JacobCo-Founder, CEOSell15K$67.15$995K563K
2026-06-01DeWitte JacobCo-Founder, CEOSell7K$66.14$489K578K
2026-06-01DeWitte JacobCo-Founder, CEOSell13K$64.99$819K585K
2026-06-01DeWitte JacobCo-Founder, CEOSell2K$70.45$127K576K
2026-06-01DeWitte JacobCo-Founder, CEOSell38K$69.64$2.7M578K
2026-06-01DeWitte JacobCo-Founder, CEOSell60K$68.29$4.1M572K
2026-06-01Cochran CarolineCo-Founder, COOSell2K$70.45$127K576K
2026-06-01Cochran CarolineCo-Founder, COOSell38K$69.64$2.7M578K
2026-06-01Cochran CarolineCo-Founder, COOSell60K$68.29$4.1M572K
2026-06-01Cochran CarolineCo-Founder, COOSell40K$69.10$2.8M609K
2026-06-01Cochran CarolineCo-Founder, COOSell25K$67.75$1.7M538K
2026-06-01Cochran CarolineCo-Founder, COOSell15K$67.15$995K563K
2026-06-01Cochran CarolineCo-Founder, COOSell7K$66.14$489K578K
2026-06-01Cochran CarolineCo-Founder, COOSell13K$64.99$819K585K
2026-06-01Bealmear Richard CraigChief Financial OfficerSell47K$69.42$3.3M439K
2026-06-01Bealmear Richard CraigChief Financial OfficerGift2K$0.00$0486K
2026-06-01Bealmear Richard CraigChief Financial OfficerSell10K$69.31$693K488K
2026-06-01Bealmear Richard CraigChief Financial OfficerOption exercise100K$3.18$318K498K

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

11 Form 144 notices on file for OKLO worth $2.0M at the prices reported; 11 in the last 90 days worth $2.0M. Latest: Narayanadas Vivek filed on 2026-09-09 to sell 365 shares ($16K) from 2026-09-09.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-09-09Narayanadas VivekOfficer365$16K0.000%2026-09-09Fidelity Brokerage Services LLC
2026-09-08Narayanadas VivekOfficer238$10K0.000%2026-09-08Fidelity Brokerage Services LLC
2026-09-04Narayanadas VivekOfficer538$21K0.000%2026-09-04Fidelity Brokerage Services LLC
2026-09-01Renner AlexandraOfficer2K$74K0.001%2026-09-01Fidelity Brokerage Services LLC
2026-09-01Bealmear Richard CraigOfficer16K$637K0.009%2026-09-01Fidelity Brokerage Services LLC
2026-08-25Narayanadas VivekOfficer223$9K0.000%2026-08-25Fidelity Brokerage Services LLC
2026-08-24Renner AlexandraOfficer557$22K0.000%2026-08-24Fidelity Brokerage Services LLC
2026-08-24Narayanadas VivekOfficer3K$130K0.002%2026-08-24Fidelity Brokerage Services LLC
2026-08-24Hanson JohnOfficer539$21K0.000%2026-08-24Fidelity Brokerage Services LLC
2026-08-24Goodwin William Carroll MurphyOfficer12K$461K0.006%2026-08-24Fidelity Brokerage Services LLC
2026-08-03Bealmear Richard CraigOfficer16K$638K0.009%2026-08-03Fidelity Brokerage Services LLC

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

4 holders above 5% have filed on OKLO, 2 on Schedule 13D (active intent). The largest reported stake is Caroline Cochran at 12.2% of the class (21,159,091 shares), filed 2026-04-21 for an event on 2026-04-21.

FiledFormHolderSharesOf classEvent
2026-07-2913G/Ano. 2BlackRock, Inc.parent holding company6.2M3.6%2026-06-30
2026-04-2113D/Ano. 5Caroline Cochranindividual21.2M12.2%2026-04-21
2026-04-2113D/Ano. 5Jacob DeWitteindividual21.2M12.2%2026-04-21
2026-03-2713G/Ano. 2The Vanguard Groupinvestment adviser00.0%2026-03-13
2026-01-2113G/Ano. 1BlackRock, Inc.parent holding company14.4M9.2%2025-12-31
2025-10-3113G/Ano. 1The Vanguard Groupinvestment adviser11.6M7.8%2025-09-30
2025-10-1713GBlackRock, Inc.parent holding company8.1M5.5%2025-09-30

13F holders

Tracked managers holding OKLO at their latest 13F. JSON

8 of the 30 tracked managers held OKLO at their latest 13F, $495.3M in total at quarter-end prices. Citadel Advisors is the largest at $359.2M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 7 added shares and 1 cut.

FundQuarterSharesValueOf portfolioChange in shares
Citadel Advisors2026-06-306.9M$359.2M0.04%+1.4M
D. E. Shaw & Co.2026-06-301.4M$73.8M0.04%+748K
Millennium Management2026-06-30385K$20.2M0.01%+266K
ARK Investment Management2026-06-30372K$19.5M0.13%+21K
Point72 Asset Management2026-06-30255K$13.3M0.01%+44K
Two Sigma Investments2026-06-3090K$4.7M0.00%-123K
Bridgewater Associates2026-06-3056K$2.9M0.01%+1K
AQR Capital Management2026-06-3032K$1.7M0.00%+7K

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) Oklo Inc. reported revenue of $1.2M, and net loss of $48.5M (-0.28 diluted EPS). In FY 2025 it generated -$82.2M of operating cash flow. As of 2026-06-30, cash was $1.64B against $700K of debt.

Cash
$1.64B
Debt
$700K
Equity
$3.27B
Total assets
$3.36B
Shares outstanding
186,017,650

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 20262026-06-30$1.2M-$48.5M-4011.2%-0.28
Q1 20262026-03-31n/a-$33.1Mn/a-0.19
Q4 2025derived2025-12-31n/a-$41.4Mn/an/a
Q3 20252025-09-30n/a-$29.7Mn/a-0.20
Q2 20252025-06-30$0-$24.7Mn/a-0.18
Q1 20252025-03-31n/a-$9.8Mn/a-0.07
Q4 2024derived2024-12-31n/a-$12.3Mn/an/a
Q3 20242024-09-30n/a-$10.0Mn/a-0.08

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31n/a-$105.7M-$82.2M$33.2Mn/an/a
FY 20242024-12-31n/a-$73.6M-$38.4M$352Kn/an/a
FY 20232023-12-31n/a-$32.2M-$16.0M$83K$215.9Mn/a
FY 20222022-12-31n/a$3.9M-$955Kn/an/an/a
FY 20212021-12-31n/a-$1.1M-$1.9Mn/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

Oklo 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 Oklo Inc. (OKLO), SEC CIK 1849056, listed on NYSE, classified by the SEC as electric services. 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 2026-08-31.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 2026-09-09.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 2026-07-29.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 2026-09-02.JSON and CSV
Company record
EDGAR filing index for CIK 1849056Ticker, 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, 14 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 OKLO is sold short?
32,200,754 shares were held short at the 2026-08-31 settlement, 3.5 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 OKLO's daily short volume?
On 2026-09-11, 6,266,724 of the 9,099,128 OKLO shares reported to FINRA were sold short, 68.9% of the day's reported volume. Short volume is a flow for one day, not a position.
Does OKLO have fails to deliver?
The SEC's latest file shows 9,456 OKLO shares failed to deliver at settlement 2026-08-14. Fails are reported per settlement date and published twice a month with a lag.
Are OKLO insiders buying or selling?
Insiders at OKLO reported 25 open-market sells worth $14.5M 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: Bealmear Richard Craig (Chief Financial Officer) on 2026-09-02.
Have OKLO insiders filed to sell?
11 Form 144 notices on file for OKLO worth $2.0M at the prices reported; 11 in the last 90 days worth $2.0M. Latest: Narayanadas Vivek filed on 2026-09-09 to sell 365 shares ($16K) from 2026-09-09.
Who owns more than 5% of OKLO?
4 holders above 5% have filed on OKLO, 2 on Schedule 13D (active intent). The largest reported stake is Caroline Cochran at 12.2% of the class (21,159,091 shares), filed 2026-04-21 for an event on 2026-04-21.
What did OKLO report last quarter?
In Q2 2026 (quarter ended 2026-06-30) Oklo Inc. reported revenue of $1.2M, and net loss of $48.5M (-0.28 diluted EPS). In FY 2025 it generated -$82.2M of operating cash flow. As of 2026-06-30, cash was $1.64B against $700K of debt.
Which funds hold OKLO?
8 of the 30 tracked managers held OKLO at their latest 13F, $495.3M in total at quarter-end prices. Citadel Advisors is the largest at $359.2M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 7 added shares and 1 cut.

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