Usually, no—not through an ordinary public stock purchase. OpenAI and Anthropic both restrict transfers of their private-company shares, and an online listing or seller’s claim does not show that a transfer has company approval. Some investors may encounter private placements, funds, or contracts that refer to these companies, but those are not necessarily direct, approved ownership of their shares.
Can you buy their shares directly before an IPO?
Neither company offers ordinary retail investors an unrestricted public-market route to buy its stock. A private-company share transfer is subject to the company’s rules; a broker, marketplace, seller, or purported share certificate cannot by itself establish that the company recognizes the transfer.
OpenAI’s transfer restrictions
OpenAI’s policy says, “All OpenAI equity is subject to transfer restrictions.” A seller must obtain OpenAI’s written consent before directly or indirectly transferring equity; an attempted transfer that does not meet the requirement is void. OpenAI specifically identifies offers involving equity held through special purpose vehicles (SPVs), tokenized interests, and forward contracts, and warns that such arrangements may violate transfer restrictions and securities laws or may not be recognized as carrying economic value. OpenAI’s policy, published July 16, 2025, describes the company’s position.
OpenAI’s structure page describes OpenAI Group PBC as a for-profit public benefit corporation controlled by the OpenAI Foundation. At the recapitalization closing described there, the Foundation held 26%, Microsoft roughly 27%, and current and former employees and investors the remaining 47%. Those figures describe ownership at that closing, not shares available to retail buyers.
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Anthropic’s transfer restrictions
Anthropic says it does not permit SPVs to acquire its stock and that transfers to SPVs are void under its restrictions. Its guidance also warns that public offers framed as direct shares, forward contracts, tokens, or other mechanisms may not provide valid or valuable ownership in Anthropic. Read Anthropic’s stock-sales and investment-scam guidance, updated June 29, 2026, before considering any purported offer.
What routes might an investor encounter?
These routes differ in what the buyer owns. The existence of a listing or report about investor access is not proof that an individual offer is current, generally available, or approved by the company.
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| Route | What the investor may own | What is established | Key limitation |
|---|---|---|---|
| Direct private-company shares | Company equity, if a valid transfer is completed | Both companies impose transfer restrictions; OpenAI requires prior written consent, and Anthropic says unapproved transfers are void. OpenAI; Anthropic. | A seller or platform cannot establish company approval on its own. |
| SPV, token, or forward contract | A fund interest, token, or contractual claim—not necessarily company shares | Both companies warn about such arrangements; Anthropic says it does not permit SPVs to acquire its stock. OpenAI; Anthropic. | The arrangement may not confer recognized ownership or economic value in the company. |
| OpenAI-related ETF | Shares of a publicly traded fund | Axios reported that OpenAI shares were expected to be included in several ARK ETFs. Axios, March 31, 2026. | An ETF share is a fund interest, not a direct OpenAI share; holdings and weights can change. |
| Reported OpenAI private placement | Shares acquired in a private transaction, if eligible and the purchase is completed | Axios reported that OpenAI sold about $3 billion of shares to individual investors through clients of three large banks. Axios, March 31, 2026. | The report does not establish general public eligibility, current availability, or an open brokerage offer. |
| IPO and public exchange trading | Publicly traded shares, if an offering and listing occur | Anthropic announced a confidential draft S-1 submission, and AP reported a confidential OpenAI filing in June 2026. Anthropic; AP. | Neither cited announcement provides a confirmed public trading date. |
What did OpenAI’s reported retail access mean?
Axios reported on March 31, 2026, that OpenAI had sold about $3 billion of shares to individual investors through clients of three large banks, and that shares were expected to be included in several ARK ETFs. It also quoted CFO Sarah Friar saying, “We are really trying to take to heart our mission, which is AGI for the benefit of humanity and thinking about access,” adding that this meant access to “the economic upside” as well as the technology. The report does not disclose general eligibility terms or establish that every retail investor can buy OpenAI shares directly. ETF investors, meanwhile, own fund shares rather than OpenAI stock in their own name.
Do the confidential IPO filings mean shares are about to trade?
No. A confidential draft registration statement is preparation for a possible offering, not an IPO date, a completed SEC review, or a public invitation to buy.
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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Anthropic
On June 1, 2026, Anthropic announced that it had confidentially submitted a draft Form S-1 to the SEC for a proposed IPO. It said the filing gave it the option to go public after SEC review, subject to market conditions and other factors; “The number of shares to be offered and the price have not yet been set.” The announcement expressly said it was not an offer to sell securities or a solicitation to buy them. Read Anthropic’s announcement.
OpenAI
AP reported in June 2026 that OpenAI had confidentially filed IPO paperwork. OpenAI said it had not decided on timing and that it might remain private for a while because some work is easier as a private company. The filing report therefore did not provide a confirmed date for public trading. Read AP’s report.
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How can you check a purported pre-IPO offer?
Anthropic flags unsolicited approaches, pressure to act quickly, hard-to-trace payment requests, claims of exclusive access, and claims that a deal has bypassed transfer restrictions as warning signs. Its guidance recommends checking official regulatory databases independently. Anthropic’s guidance also explains its position on SPVs and purported public offers.
- Ask exactly what you would own: company shares, an interest in an SPV or fund, a token, or a contract.
- For a claimed direct share transfer, require evidence of the relevant company’s approval and verify it independently with the company through official channels.
- Do not treat a seller’s claim, marketplace listing, certificate, or promise of special access as proof that a transfer is valid.
- Be especially cautious if the offer creates urgency, requests crypto or wire payment to a hard-to-trace recipient, or says the company’s restrictions have been avoided.
Forge’s marketplace article says accredited investors may sometimes access private shares through secondary transactions, subject to seller availability and company approval, and acknowledges that Anthropic transfers without board approval are void. That generalized description does not validate any particular listing; for Anthropic, the company’s own guidance states its restrictions. Forge’s article is a marketplace overview, not confirmation that a specific sale is approved.
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