Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Century Therapeutics, Inc.IPSC · Entity 5739 | See Remarks | September 14, 2026 | September 15, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Century Therapeutics, Inc.
Report date September 14, 2026 · Filed September 15, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 509,198 |
Reported balance
After 2026-09-14 transaction · row 1
1 source rowRow 1 · 2026-09-14 · Sale · Disposed 2,587 · Balance 509,198 F1: 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. |
| Common StockSEC Table I · non-derivative | IndirectBy Gregory Russotti 2021 Family Trust | 92,773 |
Reported balance
Holding disclosure · report date 2026-09-14 · row 2
Holding and transaction disclosures are not merged.
1 source rowRow 2 · Balance 92,773 |
Filing footnotes · ownership attribution and instrument terms
F1: 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.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 14, 2026 Filed Sep 15, 2026 22:25 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 2,587 | $1.93 | $4,992.91 |
DisclosureSEC source: 0001867305-26-000014 · form4-09152026_100952.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 509,198 F1 · kind: 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. Read SEC document |
| September 08, 2026 Filed Sep 9, 2026 20:35 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 534 | $2.05 | $1,094.70 |
DisclosureSEC source: 0001867305-26-000012 · form4-09092026_080938.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 511,785 F1 · kind: 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. Read SEC document |
| June 12, 2026 Filed Jun 15, 2026 23:57 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 2,584 | $2.23 | $5,767.49 |
DisclosureSEC source: 0001867305-26-000010 · form4-06152026_110632.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 512,319 F1 · kind: 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. Read SEC document |
| June 08, 2026 Filed Jun 9, 2026 20:10 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 524 | $2.11 | $1,106.16 |
DisclosureSEC source: 0001867305-26-000008 · form4-06092026_040607.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 514,903 F1 · kind: 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. Read SEC document |
| March 12, 2026 Filed Mar 16, 2026 20:03 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 10,076 | $2.55 | $25,683.72 |
DisclosureSEC source: 0001867305-26-000006 · form4-03162026_080350.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 515,427 F1 · kind: 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. Read SEC document |
| March 09, 2026 Filed Mar 11, 2026 20:11 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 479 | $2.54 | $1,214.74 |
DisclosureSEC source: 0001867305-26-000004 · form4-03112026_080313.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 525,503 F1 · kind: 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. Read SEC document |
| February 02, 2026 Filed Feb 4, 2026 21:19 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | GrantStock Option (right to buy) · Derivative | 265,000 | $0.00 Strike: $1.84 | $0.00 |
DisclosureSEC source: 0001867305-26-000002 · form4-02042026_090235.xml · derivative · entry 3 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 265,000 Underlying: Common Stock · 265,000 shares Expires 2036-02-02 F2 · derivative.exercise_date: The option vests 25% on February 2, 2027, with the remaining 75% vesting in 36 equal monthly installments, subject to the Reporting Person's continued service through each applicable vesting date. Read SEC document |
| February 02, 2026 Filed Feb 4, 2026 21:19 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | GrantCommon Stock | 135,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001867305-26-000002 · form4-02042026_090235.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 525,982 F1 · kind: Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Issuer common stock. The RSUs vest 25% on February 2, 2027, with the remaining 75% vesting on a quarterly basis for the three years thereafter, in each case subject the Reporting Person's continued service through the applicable vesting date. The RSUs will be settled on each applicable vesting date in shares of the Issuer's common stock. Read SEC document |
| December 08, 2025 Filed Dec 10, 2025 21:34 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 526 | $0.53 | $279.83 |
DisclosureSEC source: 0001867305-25-000003 · form4-12102025_091259.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 390,982 F1 · kind: 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. Read SEC document |
| September 08, 2025 Filed Sep 10, 2025 21:28 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 539 | $0.50 | $269.50 |
DisclosureSEC source: 0001062993-25-015524 · form4.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 391,508 F1 · kind: 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. Read SEC document |
| June 09, 2025 Filed Jun 11, 2025 21:04 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 526 | $0.62 | $327.17 |
DisclosureSEC source: 0001062993-25-011426 · form4.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 392,047 F1 · kind: 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. Read SEC document |
| March 11, 2025 Filed Mar 12, 2025 23:28 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | GrantStock Option (right to buy) · Derivative | 120,000 | $0.00 Strike: $0.60 | $0.00 |
DisclosureSEC source: 0001062993-25-005291 · form4.xml · derivative · entry 4 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 120,000 Underlying: Common Stock · 120,000 shares Expires 2035-03-11 F3 · derivative.exercise_date: The option vests 25% on March 11, 2026, with the remaining 75% vesting in 36 equal monthly installments, subject to the Reporting Person's continued service through each applicable vesting date. Read SEC document |
| March 11, 2025 Filed Mar 12, 2025 23:28 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | GrantCommon Stock | 120,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-25-005291 · form4.xml · nonDerivative · entry 2 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 392,573 F2 · kind: Reflects the grant of RSUs. Each RSU represents a contingent right to receive one share of Issuer common stock. The RSUs vest 25% on March 11, 2026, with the remaining 75% vesting on a quarterly basis for the three years thereafter, in each case subject the Reporting Person's continued service through the applicable vesting date. The RSUs will be settled on each applicable vesting date in shares of the Issuer's common stock. Read SEC document |
| March 10, 2025 Filed Mar 12, 2025 23:28 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 2,360 | $0.62 | $1,451.40 |
DisclosureSEC source: 0001062993-25-005291 · form4.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 272,573 F1 · kind: 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 ("RSUs"). Such sales were automatic and not at the discretion of the Reporting Person. Read SEC document |
| July 26, 2024 Filed Jul 31, 2024 13:08 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 586 | $2.50 | $1,465.00 |
DisclosureSEC source: 0001062993-24-014193 · form4.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 274,933 F1 · kind: The transactions reported herein were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 9, 2024. Read SEC document |
| July 24, 2024 Filed Jul 25, 2024 21:04 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 1,600 | $2.52 | $4,029.44 |
DisclosureSEC source: 0001062993-24-014090 · form4.xml · nonDerivative · entry 2 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 275,519 F1 · kind: The transactions reported herein were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 9, 2024. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.50 to $2.54, 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 in this footnote. Read SEC document |
| July 23, 2024 Filed Jul 25, 2024 21:04 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 200 | $2.50 | $500.00 |
DisclosureSEC source: 0001062993-24-014090 · form4.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 277,119 F1 · kind: The transactions reported herein were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 9, 2024. Read SEC document |
| June 20, 2024 Filed Jun 24, 2024 20:49 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 5,000 | $2.84 | $14,178.50 |
DisclosureSEC source: 0001062993-24-012992 · form4.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 277,319 F1 · kind: The transactions reported herein were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 9, 2024. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.685 to $2.985, 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 in this footnote. Read SEC document |
| June 05, 2024 Filed Jun 6, 2024 20:53 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 5,000 | $3.00 | $14,989.00 |
DisclosureSEC source: 0001062993-24-012076 · form4.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 282,319 F1 · kind: The transactions reported herein were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 9, 2024. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.895 to $3.06, 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 in this footnote. Read SEC document |
| May 20, 2024 Filed May 21, 2024 20:09 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 5,000 | $3.00 | $14,977.50 |
DisclosureSEC source: 0001062993-24-010860 · form4.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 287,319 F1 · kind: The transactions reported herein were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 9, 2024. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.86 to $3.10, 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 in this footnote. Read SEC document |
| May 06, 2024 Filed May 7, 2024 21:13 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 5,000 | $3.12 | $15,619.00 |
DisclosureSEC source: 0001062993-24-009575 · form4.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 292,319 F1 · kind: The transactions reported herein were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 9, 2024. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.00 to $3.29, 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 in this footnote. Read SEC document |
| April 22, 2024 Filed Apr 24, 2024 20:17 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | SaleCommon Stock | 5,000 | $3.10 | $15,489.50 |
DisclosureSEC source: 0001062993-24-008759 · form4.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 297,319 F1 · kind: The transactions reported herein were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 9, 2024. F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.98 to $3.37, 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 ranges set forth in this footnote. Read SEC document |
| March 07, 2024 Filed Mar 11, 2024 23:36 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | GrantStock Option (right to buy) · Derivative | 146,000 | $0.00 Strike: $5.32 | $0.00 |
DisclosureSEC source: 0001062993-24-006183 · form4.xml · derivative · entry 3 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 146,000 Underlying: Common Stock · 146,000 shares Expires 2034-03-07 F2 · derivative.exercise_date: The option vests 25% on March 7, 2025, with the remaining 75% vesting in 36 equal monthly installments, subject to the Reporting Person's continued service through each applicable vesting date. Read SEC document |
| March 07, 2024 Filed Mar 11, 2024 23:36 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | GrantCommon Stock | 24,000 | $0.00 | $0.00 |
DisclosureSEC source: 0001062993-24-006183 · form4.xml · nonDerivative · entry 1 Russotti Gregory · CIK 0001867305 · See Remarks 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 302,319 F1 · security: Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Century Therapeutics, Inc.'s (the "Company's") common stock. The RSUs vest 25% on March 7, 2025, with the remaining 75% vesting on a quarterly basis for the three years thereafter, in each case subject the Reporting Person's continued service through the applicable vesting date. The RSUs will be settled on each applicable vesting date in shares of the Company's common stock. Read SEC document |
| April 11, 2023 Filed Apr 13, 2023 21:29 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | GrantStock Option (right to buy) · Derivative | 318,750 | $0.00 Strike: $3.16 | $0.00 |
DisclosureSEC source: 0001062993-23-009152 · form4.xml · derivative · entry 1 Russotti Gregory · CIK 0001867305 · Chief Technology Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 318,750 Underlying: Common Stock · 318,750 shares Expires 2033-04-11 F1 · derivative.exercise_date: The option vests 25% on April 11, 2024, with the remaining 75% vesting in 36 equal monthly installments, subject to the Reporting Person's continued service with the Issuer. Read SEC document |
| February 02, 2023 Filed Feb 6, 2023 23:51 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | GrantStock Option (right to buy) · Derivative | 175,000 | $0.00 Strike: $4.64 | $0.00 |
DisclosureSEC source: 0001062993-23-002310 · form4.xml · derivative · entry 2 Russotti Gregory · CIK 0001867305 · Chief Technology Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 175,000 Underlying: Common Stock · 175,000 shares Expires 2033-02-02 F1 · derivative.exercise_date: The option vests 25% on February 2, 2024, with the remaining 75% vesting in 36 equal monthly installments, subject to the Reporting Person's continued service with the Issuer. Read SEC document |
| February 02, 2023 Filed Feb 6, 2023 23:51 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | GrantStock Option (right to buy) · Derivative | 175,000 | $0.00 Strike: $4.64 | $0.00 |
DisclosureSEC source: 0001062993-23-002310 · form4.xml · derivative · entry 1 Russotti Gregory · CIK 0001867305 · Chief Technology Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 175,000 Underlying: Common Stock · 175,000 shares Expires 2033-02-02 F1 · derivative.exercise_date: The option vests 25% on February 2, 2024, with the remaining 75% vesting in 36 equal monthly installments, subject to the Reporting Person's continued service with the Issuer. Read SEC document |
| January 25, 2022 Filed Jan 27, 2022 21:50 UTC | Century Therapeutics, Inc. IPSC · Entity 5739 | GrantStock Option (right to buy) · Derivative | 105,000 | $0.00 Strike: $13.15 | $0.00 |
DisclosureSEC source: 0001062993-22-001686 · form4.xml · derivative · entry 1 Russotti Gregory · CIK 0001867305 · Chief Technology Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 105,000 Underlying: Common Stock · 105,000 shares Expires 2032-01-25 F1 · derivative.exercise_date: The option vests 25% on January 25, 2023, with the remaining 75% vesting in 36 equal monthly installments, subject to the Reporting Person's continued service with the Issuer. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.