OKLO insider ownership: who sold, why, and what they still hold

Who	Shares	Price	% of total stake	Total stake after	Trade date	Filed
Vivek Narayanadas General Counsel & Secretary Also under a disclosed plan	288	$37.29	2.1%	13K	Oct 6, 2026	Oct 8, 2026

Who	Shares	Price	% of total stake	Total stake after	Trade date	Filed
Vivek Narayanadas General Counsel & Secretary	649	$35.93	4.5%	14K	Oct 5, 2026	Oct 6, 2026

Who	Shares	Price	% of total stake	Total stake after	Trade date	Filed
Caroline Cochran Co-Founder, COO, Director	120,000	$36.51	n/a	n/a	Oct 1, 2026	Oct 5, 2026
Jacob DeWitte Co-Founder, CEO, Director	120,000	$36.51	n/a	n/a	Oct 1, 2026	Oct 5, 2026
Richard Bealmear Chief Financial Officer	16,477	$36.87	3.4%	462K	Oct 1, 2026	Oct 5, 2026

Who	Shares	Price	% of total stake	Total stake after	Trade date	Filed
William Goodwin Chief Strategy Officer	1,775	$37.39	3.7%	47K	Sep 28, 2026	Sep 29, 2026
Alexandra Renner Chief Product Officer	1,100	$37.39	0.2%	594K	Sep 28, 2026	Sep 29, 2026
John Hanson Chief of Staff	1,100	$37.39	0.3%	361K	Sep 28, 2026	Sep 29, 2026

Who	Shares	Price	% of total stake	Total stake after	Trade date	Filed
John Jansen Director	6,354	$36.67	51%	6K	Sep 14, 2026	Sep 15, 2026

Who	Shares	Price	% of total stake	Total stake after	Trade date	Filed
Alexandra Renner Chief Product Officer	6,763	n/a	1.1%	593K	Sep 14, 2026	Sep 16, 2026

Who	Shares	Price	% of total stake	Total stake after	Trade date	Filed
Vivek Narayanadas General Counsel & Secretary Also under a disclosed plan	365	$43.31	2.7%	13K	Sep 9, 2026	Sep 10, 2026

What stands out

Richard Bealmear sold $5.9M of stock with no disclosed trading plan. The filings don't state a reason.Largest such sale, Dec 17, 2025

John Hanson sold 1.6K shares (0.5% of starting holdings), but 4K more vested, so the stake grew (from 359K to 361K).Largest sale, Sep 28, 2026

Percentages cover 5 of 19 officers and directors. 14 are left out

Left out: Caroline Cochran, Jacob DeWitte and Patrick Schweiger (holdings couldn't be fully reconciled); Richard Bealmear, Vivek Narayanadas, John Jansen and Richard Kinzley (most of their shares vested during the period, so a percentage would mislead); Michael Thompson Jr., William Goodwin, Derek Kan, David Park, David Christian, Erik Lassen and Michael Dixon (held no vested shares at the start).

Disclosed company stock is not an insider's whole wealth.

Who sold, and how much of their stake

Officers and directors, past 12 months. Each bar is the insider's vested stake at the start of the period (Oct 8, 2025). The gold part is what they sold.

SoldRest of starting stakeAdded during the period

Caroline Cochran

Co-Founder, COO, Director

No bar: holdings couldn't be fully reconciled.

$227M97% planned

Jacob DeWitte

Co-Founder, CEO, Director

No bar: holdings couldn't be fully reconciled.

$227M97% planned

Richard Bealmear

Chief Financial Officer

Sold 43% of the shares held or received (after tax withholding) during the period†. No bar against the starting stake: most of these shares arrived during the period.

$22.0M54% planned

William Goodwin

Chief Strategy Officer

Sold 54% of the shares held or received (after tax withholding) during the period†. No bar against the starting stake: most of these shares arrived during the period.

$3.6MNo plan disclosed

John Jansen

Director

Sold 74% of the shares held or received (after tax withholding) during the period†. No bar against the starting stake: most of these shares arrived during the period.

$774KNo plan disclosed

All 10 sellers

Selling by month

Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

Disclosed planTo cover taxesNo plan disclosed

Common questions

Is the Oklo Inc. CEO selling stock?

Yes. Jacob DeWitte sold 3.14M shares ($227M) in the past 12 months, 97% of it under a trading plan disclosed in the filings.

Why are Oklo Inc. insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 94% of sales by value ran under 10b5-1 trading plans disclosed in the filings, 5% were to cover taxes and 1% had no disclosed plan. A trading plan schedules sales in advance.

Are any Oklo Inc. insiders buying?

No. Officers and directors reported no purchases in the past 12 months.

How much of their stake did Oklo Inc. insiders sell?

Less than 0.1% overall. As a group they ended with more shares than they started with. These figures leave out Caroline Cochran, the largest holder (holdings couldn't be fully reconciled). That covers the 12 months to Oct 8, 2026 and counts vested shares reported on SEC Forms 3, 4 and 5, which is not an insider's whole wealth.

The evidence

Who sold10 officers and directors: amount, % of holdings, trading plan

Who sold	Amount	% of holdings	Trading plan
Caroline Cochran Co-Founder, COO, Director	$227M 3.14M shares	i No percentage: holdings couldn't be fully reconciled.	97% under a disclosed plan
Jacob DeWitte Co-Founder, CEO, Director	$227M 3.14M shares	i No percentage: holdings couldn't be fully reconciled.	97% under a disclosed plan
Richard Bealmear Chief Financial Officer	$22.0M 350K shares	43%† i † Most of the shares Richard Bealmear sold arrived during the period, so this is shares sold as a share of the 122K held at the start plus the 698K received, less 0 withheld by the company for taxes.	54% under a disclosed plan
William Goodwin Chief Strategy Officer	$3.6M 55K shares	54%† i † Most of the shares William Goodwin sold arrived during the period, so this is shares sold as a share of the 0 held at the start plus the 102K received, less 0 withheld by the company for taxes.	No plan disclosed
John Jansen Director	$774K 17K shares	74%† i † Most of the shares John Jansen sold arrived during the period, so this is shares sold as a share of the 6K held at the start plus the 17K received, less 0 withheld by the company for taxes.	No plan disclosed
Patrick Schweiger Chief Technology Officer	$314K 5.6K shares	i No percentage: holdings couldn't be fully reconciled.	No plan disclosed
Vivek Narayanadas General Counsel & Secretary	$220K 5.6K shares	29%† i † Most of the shares Vivek Narayanadas sold arrived during the period, so this is shares sold as a share of the 10K held at the start plus the 8.7K received, less 0 withheld by the company for taxes.	89% under a disclosed plan
Richard Kinzley Director	$208K 4K shares	11%† i † Most of the shares Richard Kinzley sold arrived during the period, so this is shares sold as a share of the 3.8K held at the start plus the 34K received, less 0 withheld by the company for taxes.	No plan disclosed
Alexandra Renner Chief Product Officer	$137K 3.6K shares	0.6%	No plan disclosed
John Hanson Chief of Staff	$63K 1.6K shares	0.5%	No plan disclosed

The full ownership picture16 of 19 insiders fully reconciled · 13 officers and directors

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

Insider

Held Oct 8, 2025

Sold

Held Oct 8, 2026

Still held

Caroline Cochran

Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: -2,000,000 shares on Dec 22, 2025 (Caroline Cochran GRAT). See the filing Sales and other transactions for Caroline Cochran are complete.

Co-Founder, COO, Director

n/a

−3.14M

n/a

Vesting, gifts, unvested awards and holding lines for Caroline Cochran

+220Kshares vested or exercised

−15.43Mgifted (net of own trusts)

478K → 481Kunvested awards, start → end

Some sales match sales reported by Jacob DeWitte exactly (date, shares and price). Possibly the same shares reported by both; the filings don't confirm it.

Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: -2,000,000 shares on Dec 22, 2025 (Caroline Cochran GRAT). The balances below are as reported, not verified totals.

Held through	Share class	Oct 8, 2025	Oct 8, 2026
Direct	Class A Common Stock	9,502,108	358,039
Jacob DeWitte	Class A Common Stock	9,780,098	391,533
Caroline Cochran GRAT	Class A Common Stock	4,000,000	509,479
Jacob DeWitte GRAT	Class A Common Stock	2,000,000	476,483
Caroline DeWitte Family Trust	Class A Common Stock	0	7,583,085
Caroline DeWitte GRAT No. 2	Class A Common Stock	0	1,000,000
Jacob DeWitte Family Trust	Class A Common Stock	0	7,851,901
Jacob DeWitte GRAT No. 2	Class A Common Stock	0	1,000,000
Caroline DeWitt GRAT No. 3	Class A Common Stock	0	474,011
Jacob DeWitte GRAT No.3	Class A Common Stock	0	506,807

Jacob DeWitte

Holdings couldn't be fully reconciled. A footnote describes a transfer or distribution between related entities, but the amounts could not be matched to the balance change. Largest: +1,000,000 shares on Dec 24, 2025 (Jacob DeWitte GRAT No. 2). See the filing Sales and other transactions for Jacob DeWitte are complete.

Co-Founder, CEO, Director

n/a

−3.14M

n/a

Vesting, gifts, unvested awards and holding lines for Jacob DeWitte

+220Kshares vested or exercised

−15.43Mgifted (net of own trusts)

478K → 429Kunvested awards, start → end

Some sales match sales reported by Caroline Cochran exactly (date, shares and price). Possibly the same shares reported by both; the filings don't confirm it.

Holdings couldn't be fully reconciled. A footnote describes a transfer or distribution between related entities, but the amounts could not be matched to the balance change. Largest: +1,000,000 shares on Dec 24, 2025 (Jacob DeWitte GRAT No. 2). The balances below are as reported, not verified totals.

Held through	Share class	Oct 8, 2025	Oct 8, 2026
Direct	Class A Common Stock	9,780,098	391,533
Caroline Cochran	Class A Common Stock	9,502,108	358,039
Jacob DeWitte GRAT	Class A Common Stock	2,000,000	476,483
Caroline Cochran GRAT	Class A Common Stock	2,000,000	509,479
Jacob DeWitte Family Trust	Class A Common Stock	0	7,851,901
Jacob DeWitte GRAT No. 2	Class A Common Stock	0	1,000,000
Caroline DeWitte Family Trust	Class A Common Stock	0	7,583,085
Caroline DeWitte GRAT No. 2	Class A Common Stock	0	1,000,000
Jacob DeWitte GRAT No. 3	Class A Common Stock	0	506,807
Caroline Cochran GRAT No.3	Class A Common Stock	0	474,011

Michael Klein

Director

17.85M

no sales

Vesting, gifts, unvested awards and holding lines for Michael Klein

0shares vested or exercised

0gifted (net of own trusts)

none reportedunvested awards, start → end

Held through	Share class	Oct 8, 2025	Oct 8, 2026
This Form 4 is filed by the following Reporting Persons: Michael Stuart Klein, M. Klein Associates, Inc., and AltC Sponsor LLC	Class A common stock, par value $0.0001 per share	13,950,000	13,950,000
M. Klein & Company, LLC	Common Stock, par value $0.0001 per share	3,747,800	3,747,800
M. Klein Associates, Inc	Common Stock, par value $0.0001 per share	150,000	150,000

Alexandra Renner

Started reporting during the period; starting holdings are from the Form 3.

Chief Product Officer

595K

−3.6K

594K

99.8%

Vesting, gifts, unvested awards and holding lines for Alexandra Renner

+9Kshares vested or exercised

−6.8Kgifted (net of own trusts)

140K → 262Kunvested awards, start → end

Started reporting during the period; starting holdings are from the Form 3.

Held through	Share class	Oct 8, 2025	Oct 8, 2026
Direct	Class A Common Stock	472,135	477,595
Joint account with spouse	Class A Common Stock	123,153	116,390

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
136,393	$3.18	Dec 22, 2033	$4.7M

Estimate: options held × ($37.29 − strike price), using the most recent insider trade price on Form 4 (Oct 6, 2026), not a market close.

John Hanson

Started reporting during the period; starting holdings are from the Form 3.

Chief of Staff

359K

−1.6K

361K

+0.6%

Vesting, gifts, unvested awards and holding lines for John Hanson

+4Kshares vested or exercised

0gifted (net of own trusts)

57K → 109Kunvested awards, start → end

Started reporting during the period; starting holdings are from the Form 3.

Held through	Share class	Oct 8, 2025	Oct 8, 2026
Direct	Class A Common Stock	359,008	361,350

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
45,465	$3.18	Dec 22, 2033	$1.6M

Estimate: options held × ($37.29 − strike price), using the most recent insider trade price on Form 4 (Oct 6, 2026), not a market close.

Richard Bealmear

Chief Financial Officer

122K

−350K

467K

not meaningful

Vesting, gifts, unvested awards and holding lines for Richard Bealmear

+698Kshares vested or exercised

−2.1Kgifted (net of own trusts)

277K → 128Kunvested awards, start → end

Held through	Share class	Oct 8, 2025	Oct 8, 2026
Direct	Class A Common Stock	121,913	467,261

Stock options (not counted as shares):

Options held	Strike price	Expires	Intrinsic value (estimate)
1,325,759	$3.18	Aug 1, 2033	$45.2M
591,923	$3.18	Aug 1, 2033	$20.2M

Estimate: options held × ($37.29 − strike price), using the most recent insider trade price on Form 4 (Oct 6, 2026), not a market close.

Daniel Poneman

Director

37K

no sales

Vesting, gifts, unvested awards and holding lines for Daniel Poneman

0shares vested or exercised

0gifted (net of own trusts)

3.4K → 6.7Kunvested awards, start → end

Held through	Share class	Oct 8, 2025	Oct 8, 2026
Direct	Class A Common Stock	37,000	37,000

Vivek Narayanadas

Started reporting during the period; starting holdings are from the Form 3.

General Counsel & Secretary

10K

−5.6K

13K

not meaningful

Vesting, gifts, unvested awards and holding lines for Vivek Narayanadas

+8.7Kshares vested or exercised

0gifted (net of own trusts)

51K → 113Kunvested awards, start → end

Started reporting during the period; starting holdings are from the Form 3.

Held through	Share class	Oct 8, 2025	Oct 8, 2026
Direct	Class A Common Stock	5,266	8,446
Joint account with spouse	Class A Common Stock	5,000	5,000

John Jansen

Director

−17K

not meaningful

Vesting, gifts, unvested awards and holding lines for John Jansen

+17Kshares vested or exercised

0gifted (net of own trusts)

17K → 3.2Kunvested awards, start → end

Held through	Share class	Oct 8, 2025	Oct 8, 2026
Direct	Class A Common Stock	6,000	6,000

Richard Kinzley

Minor difference of 3,800 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Director

3.8K

−4K

20K

not meaningful

Vesting, gifts, unvested awards and holding lines for Richard Kinzley

+17Kshares vested or exercised

−900gifted (net of own trusts)

17K → 3.2Kunvested awards, start → end

Held through	Share class	Oct 8, 2025	Oct 8, 2026
Direct	Class A Common Stock	3,800	3,800
Richard W. and Cynthia M. Kinzley Revocable Trust	Class A Common Stock	0	15,754

Reconciliation: minor difference of 3,800 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Mark Peters

Started reporting during the period; starting holdings are from the Form 3.

Director

100

no sales

Vesting, gifts, unvested awards and holding lines for Mark Peters

0shares vested or exercised

0gifted (net of own trusts)

0 → 7.9Kunvested awards, start → end

Started reporting during the period; starting holdings are from the Form 3.

Held through	Share class	Oct 8, 2025	Oct 8, 2026
Peters Family Trust	Class A Common Stock	100	100

Patrick Schweiger

Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: +10,505 shares on Mar 6, 2026 (Direct). See the filing Sales and other transactions for Patrick Schweiger are complete.

Chief Technology Officer

n/a

−5.6K

n/a

Vesting, gifts, unvested awards and holding lines for Patrick Schweiger

+16Kshares vested or exercised

0gifted (net of own trusts)

−1.3Kwithheld by the company for taxes

39K → 151Kunvested awards, start → end

Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: +10,505 shares on Mar 6, 2026 (Direct). The balances below are as reported, not verified totals.

Held through	Share class	Oct 8, 2025	Oct 8, 2026
Direct	Class A Common Stock	0	19,430

William Goodwin

Chief Strategy Officer

−55K

47K

not meaningful

Vesting, gifts, unvested awards and holding lines for William Goodwin

+102Kshares vested or exercised

0gifted (net of own trusts)

178K → 688Kunvested awards, start → end

Held through	Share class	Oct 8, 2025	Oct 8, 2026
Direct	Class A Common Stock	0	46,787

16 of 19 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (15 exactly, 1 with a minor or footnoted difference). For 3 we show sales but not holdings; the ! icon on their rows explains why. Percentages cover 5 of 19 officers and directors. Left out: Caroline Cochran, Jacob DeWitte and Patrick Schweiger (holdings couldn't be fully reconciled); Richard Bealmear, Vivek Narayanadas, John Jansen and Richard Kinzley (most of their shares vested during the period, so a percentage would mislead); Michael Thompson Jr., William Goodwin, Derek Kan, David Park, David Christian, Erik Lassen and Michael Dixon (held no vested shares at the start). "Still held" compares ending with starting vested shares; a plus sign means the holding grew.

What explains the selling$481M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $481M across 6,718,187 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

Disclosed plan · $452M · 94%

The lighter segment is sales with no plan disclosed in the filing ($29.5M), including tax-related sales outside a plan.

No plan disclosed · $6.9M

Sales with no 10b5-1 plan and no tax reference in the filing. $5.9M of it is Richard Bealmear. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Richard Bealmear, Dec 17, 2025

Taxes

$22.8M of sales (4.7%) cite tax obligations in their footnotes, $197K of them also under a plan. Separately, 1,280 shares ($75K) were withheld by the company for taxes, which isn't a market sale. Example: Vivek Narayanadas, Oct 6, 2026

Charitable gifts · 30.88M shares

Gifts the filings describe as charitable. Gifts are not sales and are not included in the sale totals.

Seller	Shares sold	Proceeds	Under a disclosed plan	Share of total	Sales dates
Caroline Cochran Co-Founder, COO, Director	3.14M	$227M	97%	47%	Dec 22, 2025 to Oct 1, 2026
Jacob DeWitte Co-Founder, CEO, Director	3.14M	$227M	97%	47%	Dec 22, 2025 to Oct 1, 2026
Richard Bealmear Chief Financial Officer	350K	$22.0M	54%	5%	Dec 17, 2025 to Oct 1, 2026
William Goodwin Chief Strategy Officer	55K	$3.6M	0%	0.8%	Nov 19, 2025 to Sep 28, 2026
John Jansen Director	17K	$774K	0%	0.2%	Mar 27, 2026 to Sep 14, 2026
Patrick Schweiger Chief Technology Officer	5.6K	$314K	0%	0.1%	Mar 25, 2026 to Mar 25, 2026
Vivek Narayanadas General Counsel & Secretary	5.6K	$220K	89%	0.0%	Aug 24, 2026 to Oct 6, 2026
Richard Kinzley Director	4K	$208K	0%	0.0%	Mar 27, 2026 to Mar 27, 2026
Alexandra Renner Chief Product Officer	3.6K	$137K	0%	0.0%	Aug 24, 2026 to Sep 28, 2026
John Hanson Chief of Staff	1.6K	$63K	0%	0.0%	Aug 24, 2026 to Sep 28, 2026

Sales by month

Month	Sale proceeds	Disclosed plan	To cover taxes	No plan disclosed
Oct 2025	$0	$0	$0	$0
Nov 2025	$1.2M	$0	$1.2M	$0
Dec 2025	$145M	$138M	$519K	$5.9M
Jan 2026	$122M	$122M	$0	$0
Feb 2026	$30.7M	$30.7M	$0	$0
Mar 2026	$46.9M	$26.7M	$19.5M	$749K
Apr 2026	$21.0M	$21.0M	$0	$0
May 2026	$29.8M	$29.2M	$612K	$0
Jun 2026	$32.3M	$32.3M	$0	$0
Jul 2026	$22.0M	$22.0M	$0	$0
Aug 2026	$11.1M	$10.6M	$505K	$0
Sep 2026	$10.4M	$9.9M	$223K	$233K
Oct 2026	$9.4M	$9.4M	$23K	$0

Is this normal? Selling year by year4 earlier years to compare with

More than usual: about 5x the 4-year average. 10 insiders sold; the average is 1 a year.

12 months ending	Shares sold	Insiders who sold	Proceeds
Oct 8, 2026 Latest 12 months	4.78M	10	$333M
Oct 8, 2025 1 year earlier	3.71M	5	$250M
Oct 8, 2024 2 years earlier	0	0	$0
Oct 9, 2023 3 years earlier	0	0	$0
Oct 9, 2022 4 years earlier	0	0	$0
Oct 9, 2021 5 years earlier · filings don't cover the whole year	n/a	n/a	n/a

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertainty3 insiders whose holdings couldn't be fully reconciled

Caroline Cochran: holdings couldn't be fully reconciled (difference of 11,260,130 shares). Balance changed without a matching transaction, and the footnote does not state the amount: -2,000,000 shares on Dec 22, 2025 (Caroline Cochran GRAT). Filing, Dec 22, 2025

Footnote: "The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025. | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $80.16 to $81.16, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein."

Jacob DeWitte: holdings couldn't be fully reconciled (difference of 13,260,130 shares). A footnote describes a transfer or distribution between related entities, but the amounts could not be matched to the balance change. Largest: +1,000,000 shares on Dec 24, 2025 (Jacob DeWitte GRAT No. 2). Filing, Dec 24, 2025

Footnote: "These shares were previously reported as directly beneficially owned but were contributed to a grantor retained annuity trust on December 24, 2025."

Patrick Schweiger: holdings couldn't be fully reconciled (difference of 10,505 shares). Balance changed without a matching transaction, and the footnote does not state the amount: +10,505 shares on Mar 6, 2026 (Direct). Filing, Mar 6, 2026

Footnote: "Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock. On March 6, 2026, 2,884 RSUs were released to the Reporting Person."

Richard Kinzley: minor difference of 3,800 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Inferred rename: "AltC Sponsor LLC" is treated as the same holder as "This Form 4 is filed by the following Reporting Persons: Michael Stuart Klein, M. Klein Associates, Inc., and AltC Sponsor LLC", because the old name was never reported again and the new one opened with the same balance (1,450,000 shares). Old name, new name

Inferred rename: "AltC Sponsor LLC and include 1,250,000 shares of Class B common stock that" is treated as the same holder as "This Form 4 is filed by the following Reporting Persons: Michael Stuart Klein, M. Klein Associates, Inc., and AltC Sponsor LLC", because the old name was never reported again and the new one opened with the same balance (12,500,000 shares). Old name, new name

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology174 filings from SEC EDGAR, and how we read them

All 174 Forms 3, 4 and 5 filed for Oklo Inc. (SEC CIK 1849056) from Jul 7, 2021 to Oct 8, 2026, retrieved from SEC EDGAR on Oct 8, 2026. Prices are the ones reported in each filing, often weighted averages.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (7)No filing in 18 months; last reported balances, not in any total

Name	Last filed	Last reported balance
Samuel Altman	Nov 21, 2024	3,732,479 shares, last reported balance as of Nov 19, 2024
Christopher Wright	Jul 12, 2024	No balance on record
Peter Lattman	Mar 9, 2022	No balance on record
Allison Green		No balance on record
Frances Frei		No balance on record
Lee Taragin		No balance on record
John Thornton		No balance on record

Oklo Inc. insiders sold $481M in the past 12 months. How much of their stake is that?

What stands out

Who sold, and how much of their stake

Selling by month

Common questions

Is the Oklo Inc. CEO selling stock?

Why are Oklo Inc. insiders selling?

Are any Oklo Inc. insiders buying?

How much of their stake did Oklo Inc. insiders sell?

The evidence

No plan disclosed · $6.9M

Taxes

Charitable gifts · 30.88M shares

Sales by month