Century Therapeutics (IPSC) executive logs small automatic share sale for taxes

Rhea-AI Filing Summary

Century Therapeutics, Inc. insider Gregory Russotti reported an automatic sale of shares to cover taxes on vesting stock awards. The Form 4 shows a sale of 524 shares of common stock at $2.111 per share, which a footnote explains was required to cover tax withholding obligations from vesting restricted stock units and was not at his discretion.

After this transaction, Russotti holds 514,903 shares of Century Therapeutics common stock directly and 92,773 shares indirectly through the Gregory Russotti 2021 Family Trust, indicating the tax-related sale is small relative to his overall position.

Insights

Equity compensation analyst

Sale is a small, automatic tax-withholding event tied to RSU vesting.

The Form 4 shows Gregory Russotti selling 524 Century Therapeutics common shares at $2.111. A footnote states the sale was automatically executed to satisfy tax withholding obligations from vesting restricted stock units, meaning it was a mechanical step in equity compensation, not a discretionary portfolio move.

Following the sale, he still directly holds 514,903 shares and indirectly 92,773 shares via a family trust. Given the tiny size of the sale versus his overall holdings and its tax-driven nature, this filing reads as routine administration of equity awards rather than a signal about his view of the stock.

Insider Trade Summary

Net Seller: 524 shares ($1,106)

Net Sell 2 txns

Insider Russotti Gregory

Role See Remarks

Sold 524 shs ($1K)

Type	Security	Shares	Price	Value
Sale	Common Stock	524	$2.111	$1K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 514,903 shares (Direct, null); Common Stock — 92,773 shares (Indirect, By Gregory Russotti 2021 Family Trust)

Footnotes (1)

1. [object Object]

Key Figures

Shares sold: 524 shares Sale price: $2.111 per share Direct holdings after transaction: 514,903 shares +1 more

4 metrics

Shares sold 524 shares Common stock sold to cover tax withholding on RSU vesting

Sale price $2.111 per share Average price for 524 common shares sold

Direct holdings after transaction 514,903 shares Century Therapeutics common stock held directly by Russotti after sale

Indirect trust holdings 92,773 shares Common stock held by Gregory Russotti 2021 Family Trust

Key Terms

restricted stock units, tax withholding obligations, open-market sale, Family Trust

4 terms

restricted stock units financial

"in connection with the vesting of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding obligations financial

"required to be sold by the Reporting Person to cover tax withholding obligations"

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.

Family Trust financial

"nature_of_ownership": "By Gregory Russotti 2021 Family Trust""

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Form 4 Insider Transactions: What Each Field Means →

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).

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^*

Russotti Gregory

(Last) (First) (Middle)

C/O CENTURY THERAPEUTICS, INC.

25 N 38TH STREET, 12TH FLOOR

(Street)

PHILADELPHIA PENNSYLVANIA 19104

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Century Therapeutics, Inc. [ IPSC ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	See Remarks

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/08/2026

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	06/08/2026		S(1)		524	D	$2.111	514,903	D
Common Stock								92,773	I	By Gregory Russotti 2021 Family Trust

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

Explanation of Responses:

1. The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

Remarks:

Title: Chief Technology and Manufacturing Officer

	/s/ Douglas Carr, Attorney-in-Fact	06/09/2026
	** 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)