Planned options exercise and 50K-share sale by AtaiBeckley (ATAI) COO

Rhea-AI Filing Summary

AtaiBeckley Inc. Chief Operating Officer Gerd Kochendoerfer reported an options exercise and share sale involving the company’s common stock. On June 26, 2026, he sold 50,000 shares in an open-market transaction at $5.00 per share and exercised stock options to acquire 50,000 shares at $1.60 per share.

The filing indicates these option exercises and related sales were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on March 27, 2026, which means the trades were scheduled in advance. Following the transactions, Kochendoerfer directly holds 50,000 common shares and 1,400,000 stock options that remain outstanding, according to the reported post-transaction balances.

Insights

Equity compensation and insider-transactions analyst

Routine options exercise and same-day sale under a pre-planned 10b5-1 trading plan.

The AtaiBeckley Inc. COO exercised stock options for 50,000 common shares at an exercise price of $1.60 and sold 50,000 shares at $5.00 on June 26, 2026. This is a classic exercise-and-sell pattern that converts option value into cash.

The trades were executed pursuant to a Rule 10b5-1 trading plan adopted on March 27, 2026, suggesting they were scheduled in advance rather than timed discretionarily. After the transactions, he still holds 50,000 common shares and 1,400,000 stock options expiring on January 1, 2035, indicating a continuing equity-linked position.

Insider Trade Summary 10b5-1

Net Seller: 50,000 shares ($250,000)

Net Sell 3 txns

Insider Kochendoerfer Gerd

Role Chief Operating Officer

Sold 50,000 shs ($250K)

Type	Security	Shares	Price	Value
Exercise	Stock Option	50,000	$0.00	--
Exercise	Common Stock	50,000	$1.60	$80K
Sale	Common Stock	50,000	$5.00	$250K

Holdings After Transaction: Stock Option — 1,400,000 shares (Direct, null); Common Stock — 50,000 shares (Direct, null)

Footnotes (1)

1. The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 27, 2026. The stock option vested (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying the option on December 3, 2025 and as to the remaining 75% of the total number of shares in 36 substantially equal monthly installments thereafter.

Key Figures

Shares sold: 50,000 shares Sale price: $5.00 per share Option exercise price: $1.60 per share +3 more

6 metrics

Shares sold 50,000 shares Open-market sale of common stock at $5.00 on June 26, 2026

Sale price $5.00 per share Price for 50,000 common shares sold in open-market transactions

Option exercise price $1.60 per share Exercise price for 50,000 common shares acquired via stock options

Shares acquired via exercise 50,000 shares Common shares obtained through stock option exercise on June 26, 2026

Options remaining 1,400,000 stock options Stock options outstanding after exercise, expiring January 1, 2035

Common shares held 50,000 shares Direct common stock holdings after reported transactions

Key Terms

Rule 10b5-1 trading plan, stock option, Exercise or conversion of derivative security, open-market sale

4 terms

Rule 10b5-1 trading plan regulatory

"The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

stock option financial

"The stock option vested (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying the option"

A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.

Exercise or conversion of derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

open-market sale financial

"transaction_action: open-market sale"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/29/2026 - 06:00 PM Accepted by SEC EDGAR 06/29/2026 - 06:00 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Kochendoerfer Gerd

(Last) (First) (Middle)

C/O ATAI LIFE SCIENCES US, INC.

C/O INDUSTRIOUS NYC 250 WEST 34TH STREET

(Street)

NEW YORK NEW YORK 10119

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
AtaiBeckley Inc. [ ATAI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operating Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/26/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/26/2026		M(1)		50,000	A	$1.6	50,000	D
Common Stock	06/26/2026		S(2)		50,000	D	$5	0	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option	$1.6	06/26/2026		M(1)			50,000	(2)	01/01/2035	Common Stock	50,000	$0	1,400,000	D

Explanation of Responses:

1. The option exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 27, 2026.

2. The stock option vested (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying the option on December 3, 2025 and as to the remaining 75% of the total number of shares in 36 substantially equal monthly installments thereafter.

	/s/ Ryan Barrett, as attorney in fact	06/29/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did AtaiBeckley (ATAI) report for its COO?

AtaiBeckley’s COO, Gerd Kochendoerfer, reported an options exercise and related sale. He exercised stock options for 50,000 common shares at $1.60 and sold 50,000 shares at $5.00 in open-market transactions on June 26, 2026.

How many AtaiBeckley (ATAI) shares did the COO sell and at what price?

The COO sold 50,000 shares of AtaiBeckley common stock at $5.00 per share in open-market transactions on June 26, 2026. This sale was paired with an option exercise for the same number of shares at a lower exercise price.

Did the AtaiBeckley (ATAI) COO exercise stock options in this Form 4?

Yes. The Form 4 shows the COO exercised stock options covering 50,000 underlying common shares at an exercise price of $1.60 per share. These options relate to a grant that vests over time, with remaining options still outstanding after the transaction.

Were the AtaiBeckley (ATAI) insider trades made under a Rule 10b5-1 plan?

Yes. A footnote states the option exercises and related sales were effected under a Rule 10b5-1 trading plan adopted by the reporting person on March 27, 2026. Such plans pre-schedule trades, reducing the significance of short-term market timing.

What AtaiBeckley (ATAI) equity position does the COO hold after these transactions?

After the reported transactions, the COO directly holds 50,000 shares of AtaiBeckley common stock and 1,400,000 stock options. The options have an exercise price of $1.60 per share and an expiration date of January 1, 2035, according to the filing.

What does transaction code S and M mean in the AtaiBeckley (ATAI) Form 4?

Code S indicates an open-market or private sale of common stock, here 50,000 shares at $5.00. Code M indicates an exercise or conversion of a derivative security, in this case stock options exercised for 50,000 common shares at a $1.60 exercise price.