Skip to main content
spacbrain

AltC Acquisition Corp.

ALCC · NYSE

Trust settledOklo Inc. · Finished

NO ACTION REQUIRED

Nothing left to do

The purchase completed and the shares became shares in the company it bought. There is no deadline left to miss.

No price history on file yet — daily closes accumulate from the market data feed.

Trust settled · There is no line to draw here. This vehicle has finished: the cash was paid back or spent closing the deal, so the last filed figure describes an account that no longer exists and would be a floor under nothing.

SpacBrain’s read

Trust settled

The deal closed — SPAC shares became the target's shares, so there is no trust left to redeem (nobody missed a window; holders who wanted cash elected it at the vote).


In plain terms

What it is
A SPAC from AltC Sponsor LLC, listed on NYSE in July 2021.
What it's doing now
It agreed to buy Oklo Inc.. That purchase completed, and it stopped being a SPAC — the shares became shares in the business it bought.
What you should know
This SPAC has finished. The purchase completed, and the shares became shares in the company it bought — anyone who wanted the cash instead asked for it at the vote, so there is no cash left here to claim and no deadline left to miss.

At a glance

Where it stands
Closed (deSPAC)
The business it bought
Oklo Inc. — Oklo intends to revolutionize the energy landscape by developing affordable, reliable, clean energy solutions at scale.
Industry
the deal record does not name the target's industry yet
Deal value
not stated in the filings we hold
Price vs cash at settlement
no live price on file
Cash in trust when it settled
not yet extracted into a snapshot — the filings below may state it
the last trust total filed while this was still a SPAC — the account has since been paid out or used to close the deal
IPO
9 July 2021
size not on file
Headquarters
3190 CORONADO DR., SANTA CLARA, CA, 95054
registered in Delaware
Lead underwriter
not extracted from the prospectus yet
Key officers
Renner Alexandra (Chief Product Officer) · Hanson John (Chief of Staff) · Goodwin William Carroll Murphy (Chief Legal & Strategy Officer)
Listed securities
ALCC common
Cash held per sharenot filed for this window

This vehicle has finished, so there is no window to file a cash-per-share figure for and none will follow. No estimate is shown in its place.

Next date that mattersno dated event on file

Nothing dated is on file. That is an absence in the record, not a statement that nothing is coming.

Yield to redemption

Nothing left to redeem — no yield to compute.

This SPAC has finished — its trust was paid back or used to close the deal, so there is nothing left to redeem and no yield to compute. A yield to redemption is a claim that you can hand these shares back for the trust cash. That account is closed, so this page will not print a number here.


What happened to the cash

The reasoning behind the verdict above, in the order the filings establish it.

  1. The deal closed — SPAC shares became the target's shares, so there is no trust left to redeem (nobody missed a window; holders who wanted cash elected it at the vote).

What has happened, and what is coming

2 dated milestones

Every dated step from the day it listed to the next date you may have to act on. Where you have to do something, the day your broker needs the instruction is marked too.

  1. 9 July 2021IPOpassed

    IPO size not on file

  2. 5 October 2023Extension votepassed0001104659-23-100799opens on sec.gov in a new tab

The deal

terms as filed

What it is buying, on what terms, and how much of the combined company new shares take from you.

  • closed

    What Oklo Inc. does — read from oklo.com on 26 August 2026

    Oklo is designing and deploying advanced fission power plants to provide clean, reliable, affordable energy. The company develops next-generation fast reactors, such as the Aurora powerhouse (up to 75MWe), which feature inherent safety, can be fueled by recycled nuclear waste, and have demonstrated operating experience dating back to the 1960s. Oklo is building three businesses: clean power, advanced nuclear fuel, and critical radioisotopes.

    EnergyNuclear PowerAdvanced Nuclear FuelRadioisotopes
    Deal structureSEC-primary — BCA 8-K / S-4 / DEFM14A
    Min-cash condition
    $250M

The score

deterministic, from filed fields

ALCC is not in the scored universe, so no score is shown. A withheld score is a fact about the record, not a verdict about the company.

Asymmetric return scoreNeither a price nor a cash-per-share figure is on file for this vehicle, and the score is a ratio between the two. Nothing is estimated to fill the gap.

The score is only published for names that carry both a price and a filed cash-per-share figure — 292 of the tracked fleet today. The rest keep an empty dial rather than a modelled one, and fill in by themselves as the fields land.

See the names that are scored, and how


The company

from SEC filings
Read the full profile

AltC Acquisition Corp. was a blank-check company whose common stock traded on the New York Stock Exchange under the ticker OKLO, and it is classified under SEC SIC industry code 4911, Electric Services. The company priced its initial public offering on July 9, 2021, under SEC file number 333-254263, pursuant to an S-1 registration statement filed March 15, 2021, with shares sold for cash. Its blank-check status was self-described in the pricing prospectus filed as 424B4 accession 0001104659-21-090716. The vehicle completed a business combination and no longer files, with the closing established by an 8-K filed May 13, 2024 (accession 0001104659-24-060634) reporting a change in shell company status under item 5.06. EDGAR now files SEC CIK 0001849056 under the name Oklo Inc.


Material findings

from the full read of every filing

Every document this company files gets read whole — body and exhibits. These are the ones the read flagged as material, newest first, each citing its filing.

  • Cash and marketable securities together roughly doubled to about $2.47 billion over the half-year, and the company states in its own cautionary note that it has no commercial project operating. This summary covers the cover page, cautionary note and the top of the balance sheet; the statements of operations are not covered here.

  • The consideration is $850,000,000 of Equity Value plus the net proceeds of any Permitted Equity Financing Oklo raises before Closing, currently expected to be at least $25,000,000, paid entirely in stock valued at $10.00 per share — so the share count rises with any pre-closing raise rather than the price adjusting. On top of that sits an earnout of up to 15,000,000 Class A shares over five years, in tranches of 7,500,000, 5,000,000 and 2,500,000, triggered by the closing price on twenty trading days within any sixty consecutive trading days, or by the price in a Change in Control.

  • Each Oklo share is expected to convert into approximately 6.062 shares of AltC Class A common stock, and on top of that sit up to 15,000,000 earnout shares issued over a five-year period in three tranches of 7,500,000, 5,000,000 and 2,500,000 on share-price targets measured over any twenty trading days within any sixty consecutive trading days, or on a change of control. Because the Equity Value floats with any pre-closing financing, the share count issued to Oklo holders is not fixed at this version, and the earnout is dilution that arrives after a public holder has already voted.

  • The $10.00 per share at which the stock consideration is valued is a contractual input rather than a market price, so the number of shares issued is fixed by the agreement and not by where AltC trades at closing. On top of the closing consideration sits an earnout of up to 15,000,000 Class A shares in three tranches of 7,500,000, 5,000,000 and 2,500,000, issuable over five years if the closing sale price holds a target for any twenty trading days within any sixty consecutive trading days, or on a change of control at or above the target.

  • The consideration is an Equity Value of $850,000,000 plus the net proceeds of any Permitted Equity Financing Oklo raises before closing, paid entirely in AltC Class A common stock valued at $10.00 per share — a contractual input rather than a market price, so the share count is fixed by the agreement and not by where AltC trades. Up to 15,000,000 Earnout Shares follow in three tranches of 7,500,000, 5,000,000 and 2,500,000 over five years, on price targets held for any twenty trading days within any sixty consecutive trading days. Oklo SAFE and option holders share the closing consideration.

  • The 6.340 ratio is derived from the Per Share Equity Value, so it is a computed output that can move with Oklo's capitalisation rather than a negotiated constant, while the $850,000,000 above it stays fixed. The $10.00 per share at which the stock consideration is valued is a contractual input, not a market price. On top sits an earnout of up to 15,000,000 Class A shares in tranches of 7,500,000, 5,000,000 and 2,500,000 over five years, triggered by the closing sale price holding a target for any twenty trading days within any sixty consecutive trading days.

Show 1 more material filings
  • 6.573 shares per Oklo share is the ratio at this first version, derived from the Per Share Equity Value rather than from a market price — the $10.00 is a contractual input, so AltC's own trading level does not change the count issued. The earnout adds up to 15,000,000 further Class A shares in tranches of 7,500,000, 5,000,000 and 2,500,000 over five years, triggered by the closing sale price holding a target for any twenty trading days within any sixty consecutive trading days, or by a change of control at or above the target.


Filings

live EDGAR feed

Everything this company has filed with the SEC recently, newest first, each with a plain summary of what changed and why it matters.


The record

The reference detail — how the shares were structured at listing, how thinly they trade, and where the company is registered.

Show the reference detail

Unit structure

Cash in trust at IPOnot extracted from the prospectus

from 424B3 0001104659-25-057860

Trading & liquidity

Average daily volume (20d)no volume reported on the bars we hold
Average daily $ volumeneeds both volume and a live price
Range over the bars heldnot enough price history
Total cash in trustthe trust total is not in the last XBRL stamp

Company profile

Industry (SIC)Electric Services (4911)
Registered inDelaware
Exchange · CIKNYSE · 0001849056

All filings on EDGARopens on sec.gov in a new tab

Directors & officers


Institutional holders

from SC 13G/13D

Funds that have declared a stake above 5%. Heavy ownership by arbitrage funds usually means heavy cash-outs at the next vote.

Show the declared stakes

13 filers with a stake on file · 0 re-affirmed in the last 12 months. A stake with no amendment since is the filer’s last word on it, not proof it is still held — and percentages filed in different years are percentages of different floats, because this vehicle’s share count collapses at every redemption.

One line per filer, not per reporting person: a joint schedule names the management company, its funds and often the individual who controls them, and all of them report the same shares. Click a name for that filer’s whole footprint across every SPAC it has declared a stake in.


News

company wires and the financial press

Reporting we have matched to this ticker. Headlines belong to the outlets that wrote them.

Show the headlines

Sources on file

harvested pages, kept in full

Every public page we have read about this company, stored in full so a source can never go missing.

Show the sources

In plain English

tap a term to open it

Every piece of jargon this page could have used, and what it actually means.

Open the plain-English guide
No floor / floorlessthe cash guarantee is gone — the price is unprotected

A SPAC's downside protection is not the cash in trust; it is your right to demand that cash. Once the redemption window closes, the cash stays with the company and the share can trade anywhere.

Redemption deadlinethe last day to hand shares back for cash

Set by the filing that calls the meeting. Tender after it and the company is under no obligation to pay you the trust value.

Broker action datethe day your broker needs the instruction — earlier than the official date

Brokers batch redemption instructions to the transfer agent, so the practical cutoff is roughly two business days before the published deadline. This is the date that actually costs people the floor.

Cash in trust / trust per sharethe cash the company is holding for each public share

Filed quarterly in the 10-Q's XBRL. It earns interest between filings, so the figure on a given day is slightly higher than the last filed one — where we show that we label it an estimate.

Trust discountbuying below the cash held for you

Only meaningful while a redemption right exists. On a floorless name the same arithmetic is not a discount, it is the market pricing distress, and this product will not call it a yield.

Dilutionhow much of the company new shares take from you

Sponsor promote, PIPE shares, warrants and rights all issue stock that did not pay $10 for it. The headline deal value is before that; the effective value is after.

Pro-forma equitywhat the company is valued at once the deal closes

The combined company's equity value assuming the announced terms and the redemptions that have actually happened.

ARShow much upside you get per unit of downside

SpacBrain's asymmetric-return score. It is deterministic — the same inputs always produce the same number — and it is capped, not zeroed, when the floor is gone.

De-SPACthe day the SPAC becomes the real company

The shares stop being a claim on a pot of cash and start being equity in an operating business. Roughly 80% of recent de-SPACs traded below $10 within a year.

Outside datethe contractual long-stop for closing the deal

A deadline between the SPAC and its target, not between the SPAC and you. It confers no right to cash, which is exactly why it must never be counted as a redemption window.

Accession numberthe SEC's unique id for one filing

Every figure on this page carries the accession of the filing that states it, so you can open the primary document rather than trust us.

Accreted NAV (estimate)the last filed cash figure, plus the interest it should have earned since

A model, not a filing: last filed value compounded at the 3-month T-bill for the days elapsed. Always shown in italic with the word estimate, and never printed beside a filed number without it.


Ask the brain

from its filings
Data provenance & audit trail3 internal entries

Written by SpacBrain’s data agents whenever a figure is captured, corrected or flagged, and kept verbatim so every number on this page can be traced back to the filing that states it. This is a running log, not the current record: an early entry may be superseded by a later correction — the panels above always hold the current values.

ALCC — company record
UNIVERSE-IPO-INDEX2026-08-17

admitted from EDGAR's QUARTERLY FORM INDEX, walked without any SIC filter. The SIC 6770 census could not reach this registrant: EDGAR reassigns a shell's SIC the day it stops being one, and this CIK now files under 4911 (Electric Services). The screen found it by filing SHAPE instead — S-1 2021-03-15 → 8-A12B 2021-07-07 → 424B4 2021-07-09 — which nothing rewrites. Admission rule: src/lib/universe-admit.ts. SIC 4911 + self-described blank check in 424B4 0001104659-21-090716; 424B 0001104659-21-090716 priced 2021-07-09 under S-1 0001104659-21-035909 (file 333-254263, an offering for cash); common ticker ALCC off 10-Q 0001410578-24-000635 (2024-05-08); lifecycle ACTIVE. The pricing prospectus was filed under SEC file number 333-254263, which belongs to S-1 0001104659-21-035909 (2021-03-15) — a registration of shares sold for CASH, which is what makes it an IPO rather than merger consideration. Blank-check status from the registrant's own first-person sentence in that prospectus (EDGAR full-text search, 424B4 2021-07-09). Ending PROVEN, not inferred: CLOSED per 8-K 0001104659-24-060634 (2024-05-13) — 8-K item 5.06 "Change in Shell Company Status" (EDGAR item index, items: 1.01,2.01,3.03,5.01,5.02,5.03,5.05,5.06,8.01,9.01). EDGAR now files this CIK as "Oklo Inc." — the SPAC's own name is kept here and the successor is the target. ipoSizeM and deadline left NULL: gross-proceeds prose conflates the over-allotment with the offering, and a charter deadline belonging to a vehicle that has ended is a date nobody can act on. ipoDate is the 424B pricing date.

SPONSOR-ID2026-08-14

sponsor "AltC Sponsor LLC" sourced from prospectus definition (10-K) acc 0001410578-22-000756.

Deal — Oklo Inc.
UNTAGGED

[CLOSED-RENAME] EDGAR CIK 0001849056 records "AltC Acquisition Corp." ending 2024-05-08; the registrant continues as "Oklo Inc.". The rename is the SEC's own record of what the vehicle became, keyed by CIK. Closed 2024-05-08. No deal value is set — a rename says what was acquired, never for how much. No date column is set: Deal has announcedAt, voteDate and expectedCloseAt and nowhere to record an actual close, so the SEC's date is kept here until that column exists. [DEAL-STRUCTURE-MINED] minCashM=250 from primary filings (0001104659-23-104310).