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person · Reporting owner

ROSS ROBERT W.

Disclosed activity across 3 companies

Tapewire entity
26133
SEC CIK
0001733077

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Obsidian Therapeutics, Inc.OBX · Entity 4898DirectorAugust 03, 2026August 05, 2026
Xilio Therapeutics, Inc.XLO · Entity 7122DirectorJune 11, 2026June 12, 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.

Obsidian Therapeutics, Inc.

Report date August 03, 2026 · Filed August 05, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $12.00 · Expires 2036-08-02Direct37,653 Reported balance After 2026-08-03 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-08-03 · Grant · Acquired 37,653 · Balance 37,653

F1: The shares underlying this option shall vest and become exercisable upon the earlier of (i) the one-year anniversary of the grant date or (ii) the date of the Issuer's annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service with the Issuer on such vesting date.

Filing footnotes · ownership attribution and instrument terms

F1: The shares underlying this option shall vest and become exercisable upon the earlier of (i) the one-year anniversary of the grant date or (ii) the date of the Issuer's annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service with the Issuer on such vesting date.

Xilio Therapeutics, Inc.

Report date June 11, 2026 · Filed June 12, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $7.99 · Expires 2036-06-10Direct5,000 Reported balance After 2026-06-11 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-06-11 · Grant · Acquired 5,000 · Balance 5,000

F1: The option was granted on June 11, 2026 and will vest as to 100% of the shares underlying the option on the earlier of (i) June 11, 2027 and (ii) the Issuer's next annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date.

Filing footnotes · ownership attribution and instrument terms

F1: The option was granted on June 11, 2026 and will vest as to 100% of the shares underlying the option on the earlier of (i) June 11, 2027 and (ii) the Issuer's next annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date.

Past disclosures · reporting ended (1)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

Surface Oncology, Inc.

Report date September 08, 2023 · Filed September 08, 2023

Section 16 reporting ended · disclosed 2023-09-08. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect0 Reported balance After 2023-09-08 transaction · row 1
1 source row

Row 1 · 2023-09-08 · Disposition to issuer · Disposed 83,193 · Balance 0

F1: This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger dated as of June 15, 2023 (the "Merger Agreement"), by and among the Issuer, Coherus BioSciences, Inc. ("Coherus"), Crimson Merger Sub I, Inc., a direct, wholly owned subsidiary of Coherus ("Merger Sub I"), and Crimson Merger Sub II, LLC, a direct, wholly owned subsidiary of Coherus ("Merger Sub II"), pursuant to which Merger Sub I merged with and into the Issuer effective as of September 8, 2023 (the "Effective Time"), with Surface surviving such merger as a direct, wholly owned subsidiary of Coherus (the "First Merger"), and, as part of the same overall transaction, promptly after the First Merger, the surviving corporation of the First Merger merged with and into Merger Sub II, with Merger Sub II surviving such merger.

F2: At the Effective Time, each issued and outstanding share of common stock of the Issuer was cancelled and converted into the right to receive (i) 0.1960 (the "Exchange Ratio") shares of common stock of Coherus and (ii) one contingent value right (each, a "CVR") representing a contractual right to receive contingent future conditional payments pursuant to the terms of a Contingent Value Rights Agreement by and between Coherus and Computershare Inc.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $0.69Direct0 Reported balance After 2023-09-08 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2023-09-08 · Disposition to issuer · Disposed 400,000 · Balance 0

F1: This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger dated as of June 15, 2023 (the "Merger Agreement"), by and among the Issuer, Coherus BioSciences, Inc. ("Coherus"), Crimson Merger Sub I, Inc., a direct, wholly owned subsidiary of Coherus ("Merger Sub I"), and Crimson Merger Sub II, LLC, a direct, wholly owned subsidiary of Coherus ("Merger Sub II"), pursuant to which Merger Sub I merged with and into the Issuer effective as of September 8, 2023 (the "Effective Time"), with Surface surviving such merger as a direct, wholly owned subsidiary of Coherus (the "First Merger"), and, as part of the same overall transaction, promptly after the First Merger, the surviving corporation of the First Merger merged with and into Merger Sub II, with Merger Sub II surviving such merger.

F3: At the Effective Time, each option to purchase shares of the Issuer's Common Stock that was outstanding immediately prior to the Effective Time that had an exercise price per share equal to or less than $1.0354 (any such option, an "In-the-Money Option") was cancelled and converted into the right to receive (i) 0.1960 shares of common stock of Coherus and (ii) a number of CVRs equal to the number of shares of Surface common stock underlying such In-the-Money Option.

Filing footnotes · ownership attribution and instrument terms

F1: This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger dated as of June 15, 2023 (the "Merger Agreement"), by and among the Issuer, Coherus BioSciences, Inc. ("Coherus"), Crimson Merger Sub I, Inc., a direct, wholly owned subsidiary of Coherus ("Merger Sub I"), and Crimson Merger Sub II, LLC, a direct, wholly owned subsidiary of Coherus ("Merger Sub II"), pursuant to which Merger Sub I merged with and into the Issuer effective as of September 8, 2023 (the "Effective Time"), with Surface surviving such merger as a direct, wholly owned subsidiary of Coherus (the "First Merger"), and, as part of the same overall transaction, promptly after the First Merger, the surviving corporation of the First Merger merged with and into Merger Sub II, with Merger Sub II surviving such merger.

F2: At the Effective Time, each issued and outstanding share of common stock of the Issuer was cancelled and converted into the right to receive (i) 0.1960 (the "Exchange Ratio") shares of common stock of Coherus and (ii) one contingent value right (each, a "CVR") representing a contractual right to receive contingent future conditional payments pursuant to the terms of a Contingent Value Rights Agreement by and between Coherus and Computershare Inc.

F3: At the Effective Time, each option to purchase shares of the Issuer's Common Stock that was outstanding immediately prior to the Effective Time that had an exercise price per share equal to or less than $1.0354 (any such option, an "In-the-Money Option") was cancelled and converted into the right to receive (i) 0.1960 shares of common stock of Coherus and (ii) a number of CVRs equal to the number of shares of Surface common stock underlying such In-the-Money Option.

Transaction history

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Purchases/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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 03, 2026 Filed Aug 5, 2026 20:10 UTC Obsidian Therapeutics, Inc. OBX · Entity 4898 GrantStock Option (Right to Buy) · Derivative 37,653 $0.00 Strike: $12.00 $0.00
Disclosure

SEC source: 0001193125-26-335113 · ownership.xml · derivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,653

Underlying: Common Stock · 37,653 shares

Expires 2036-08-02

F1 · derivative.exercise_date: The shares underlying this option shall vest and become exercisable upon the earlier of (i) the one-year anniversary of the grant date or (ii) the date of the Issuer's annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service with the Issuer on such vesting date.

Read SEC document
June 11, 2026 Filed Jun 12, 2026 20:07 UTC Xilio Therapeutics, Inc. XLO · Entity 7122 GrantStock Option (right to buy) · Derivative 5,000 $0.00 Strike: $7.99 $0.00
Disclosure

SEC source: 0001193125-26-269397 · ownership.xml · derivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 5,000 shares

Expires 2036-06-10

F1 · derivative.exercise_date: The option was granted on June 11, 2026 and will vest as to 100% of the shares underlying the option on the earlier of (i) June 11, 2027 and (ii) the Issuer's next annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date.

Read SEC document
June 11, 2025 Filed Jun 12, 2025 20:37 UTC Xilio Therapeutics, Inc. XLO · Entity 7122 GrantStock Option (right to buy) · Derivative 31,000 $0.00 Strike: $0.69 $0.00
Disclosure

SEC source: 0001415889-25-016972 · form4-06122025_080633.xml · derivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,000

Underlying: Common Stock · 31,000 shares

Expires 2035-06-10

F1 · derivative.exercise_date: The option was granted on June 11, 2025 and will vest as to 100% of the shares underlying the option on the earlier of (i) June 11, 2026 and (ii) the Issuer's next annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date.

Read SEC document
June 14, 2024 Filed Jun 17, 2024 20:30 UTC Xilio Therapeutics, Inc. XLO · Entity 7122 GrantStock Option (right to buy) · Derivative 25,000 $0.00 Strike: $1.02 $0.00
Disclosure

SEC source: 0001415889-24-017207 · form4-06172024_040611.xml · derivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Common Stock · 25,000 shares

Expires 2034-06-13

F1 · derivative.exercise_date: The option was granted on June 14, 2024 and will vest as to 100% of the shares underlying the option on the earlier of (i) June 14, 2025 and (ii) the Issuer's next annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date.

Read SEC document
September 08, 2023 Filed Sep 8, 2023 16:00 UTC Surface Oncology, Inc. SURF · Entity 109857 Disposition to issuerStock Option (Right to Buy) · Derivative 400,000 $0.00 Strike: $0.69 $0.00
Disclosure

SEC source: 0001209191-23-048757 · doc4.xml · derivative · entry 2

ROSS ROBERT W. · CIK 0001733077 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 400,000 shares

Expires not disclosed

F1 · kind: This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger dated as of June 15, 2023 (the "Merger Agreement"), by and among the Issuer, Coherus BioSciences, Inc. ("Coherus"), Crimson Merger Sub I, Inc., a direct, wholly owned subsidiary of Coherus ("Merger Sub I"), and Crimson Merger Sub II, LLC, a direct, wholly owned subsidiary of Coherus ("Merger Sub II"), pursuant to which Merger Sub I merged with and into the Issuer effective as of September 8, 2023 (the "Effective Time"), with Surface surviving such merger as a direct, wholly owned subsidiary of Coherus (the "First Merger"), and, as part of the same overall transaction, promptly after the First Merger, the surviving corporation of the First Merger merged with and into Merger Sub II, with Merger Sub II surviving such merger.

F3 · derivative.exercise_date: At the Effective Time, each option to purchase shares of the Issuer's Common Stock that was outstanding immediately prior to the Effective Time that had an exercise price per share equal to or less than $1.0354 (any such option, an "In-the-Money Option") was cancelled and converted into the right to receive (i) 0.1960 shares of common stock of Coherus and (ii) a number of CVRs equal to the number of shares of Surface common stock underlying such In-the-Money Option.

F3 · derivative.expiration_date: At the Effective Time, each option to purchase shares of the Issuer's Common Stock that was outstanding immediately prior to the Effective Time that had an exercise price per share equal to or less than $1.0354 (any such option, an "In-the-Money Option") was cancelled and converted into the right to receive (i) 0.1960 shares of common stock of Coherus and (ii) a number of CVRs equal to the number of shares of Surface common stock underlying such In-the-Money Option.

Read SEC document
September 08, 2023 Filed Sep 8, 2023 16:00 UTC Surface Oncology, Inc. SURF · Entity 109857 Disposition to issuerCommon Stock 83,193 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-23-048757 · doc4.xml · nonDerivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · kind: This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger dated as of June 15, 2023 (the "Merger Agreement"), by and among the Issuer, Coherus BioSciences, Inc. ("Coherus"), Crimson Merger Sub I, Inc., a direct, wholly owned subsidiary of Coherus ("Merger Sub I"), and Crimson Merger Sub II, LLC, a direct, wholly owned subsidiary of Coherus ("Merger Sub II"), pursuant to which Merger Sub I merged with and into the Issuer effective as of September 8, 2023 (the "Effective Time"), with Surface surviving such merger as a direct, wholly owned subsidiary of Coherus (the "First Merger"), and, as part of the same overall transaction, promptly after the First Merger, the surviving corporation of the First Merger merged with and into Merger Sub II, with Merger Sub II surviving such merger.

F2 · price: At the Effective Time, each issued and outstanding share of common stock of the Issuer was cancelled and converted into the right to receive (i) 0.1960 (the "Exchange Ratio") shares of common stock of Coherus and (ii) one contingent value right (each, a "CVR") representing a contractual right to receive contingent future conditional payments pursuant to the terms of a Contingent Value Rights Agreement by and between Coherus and Computershare Inc.

Read SEC document
August 01, 2023 Filed Aug 11, 2023 20:00 UTC Surface Oncology, Inc. SURF · Entity 109857 SaleCommon Stock 16,713 $0.94 $15,710.22
Disclosure

SEC source: 0001209191-23-045494 · doc4.xml · nonDerivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,193

F1 · kind: Amount reported represents the number of shares sold by the reporting person to cover the tax withholding obligations in connection with the vesting of restricted stock units.

Read SEC document
June 12, 2023 Filed Jun 13, 2023 20:30 UTC Xilio Therapeutics, Inc. XLO · Entity 7122 GrantStock Option (right to buy) · Derivative 13,200 $0.00 Strike: $2.80 $0.00
Disclosure

SEC source: 0001415889-23-009741 · form4-06132023_040623.xml · derivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,200

Underlying: Common Stock · 13,200 shares

Expires 2033-06-11

F1 · derivative.exercise_date: The option was granted on June 12, 2023 and will vest as to 100% of the shares underlying the option on the earlier of (i) June 12, 2024 and (ii) the Issuer's next annual meeting of stockholders following the grant date, subject to the Reporting Person's continued service to the Issuer through the vesting date.

Read SEC document
March 01, 2023 Filed Mar 3, 2023 20:00 UTC Surface Oncology, Inc. SURF · Entity 109857 GrantStock Option (Right to Buy) · Derivative 400,000 $0.00 Strike: $0.69 $0.00
Disclosure

SEC source: 0001209191-23-016052 · doc4.xml · derivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 400,000

Underlying: Common Stock · 400,000 shares

Expires 2033-03-01

F1 · derivative.exercise_date: The Options shall vest in full on February 8, 2024, so long as the reporting person remains an employee or other service provider of the Issuer on such date.

Read SEC document
August 03, 2022 Filed Aug 5, 2022 20:00 UTC Surface Oncology, Inc. SURF · Entity 109857 SaleCommon Stock 10,594 $1.72 $18,221.68
Disclosure

SEC source: 0001209191-22-044673 · doc4.xml · nonDerivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,906

F1 · kind: Amount reported represents the number of shares sold by the reporting person to cover the tax withholding obligations in connection with the vesting of restricted stock units.

Read SEC document
June 15, 2022 Filed Jun 17, 2022 20:08 UTC Xilio Therapeutics, Inc. XLO · Entity 7122 GrantStock Option (right to buy) · Derivative 26,400 $0.00 Strike: $2.28 $0.00
Disclosure

SEC source: 0001415889-22-006704 · form4-06172022_010602.xml · derivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,400

Underlying: Common Stock · 26,400 shares

Expires 2032-06-14

F1 · derivative.exercise_date: The option award was granted on June 15, 2022 and will vest in three equal installments on June 15, 2023, June 15, 2024 and June 15, 2025.

Read SEC document
March 01, 2022 Filed Mar 3, 2022 20:00 UTC Surface Oncology, Inc. SURF · Entity 109857 GrantStock Option (Right to Buy) · Derivative 359,000 $0.00 Strike: $3.64 $0.00
Disclosure

SEC source: 0001209191-22-015966 · doc4.xml · derivative · entry 2

ROSS ROBERT W. · CIK 0001733077 · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 359,000

Underlying: Common Stock · 359,000 shares

Expires 2032-03-01

F2 · derivative.exercise_date: The option vests in equal monthly installments over four years, so that all of the underlying shares shall be vested on February 8, 2026, so long as the reporting person remains an employee or other service provider of the Issuer on such dates.

Read SEC document
March 01, 2022 Filed Mar 3, 2022 20:00 UTC Surface Oncology, Inc. SURF · Entity 109857 GrantCommon Stock 56,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-22-015966 · doc4.xml · nonDerivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 110,500

F1 · kind: The shares were acquired pursuant to a restricted stock unit award under the 2018 Stock Option and Incentive Plan. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. The restricted stock units vest as follows: 40% on August 1, 2022 and the remaining 60% on August 1, 2023, so long as the reporting person remains an employee or other service provider of the Issuer on such date.

Read SEC document
July 21, 2021 Filed Jan 14, 2022 20:30 UTC Surface Oncology, Inc. SURF · Entity 109857 SaleCommon Stock 33,500 $6.10 $204,350.00
Disclosure

SEC source: 0001209191-22-003397 · doc4.xml · nonDerivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,500

F1 · kind: Amount reported represents the number of shares sold by the reporting person to cover the tax withholding obligations in connection with the vesting of restricted stock units.

Read SEC document
February 16, 2021 Filed Feb 18, 2021 20:00 UTC Surface Oncology, Inc. SURF · Entity 109857 SaleCommon Stock 1,000 $11.35 $11,350.00
Disclosure

SEC source: 0001209191-21-012182 · doc4.xml · nonDerivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2020.

Read SEC document
February 12, 2021 Filed Mar 3, 2021 20:18 UTC Surface Oncology, Inc. SURF · Entity 109857 GrantStock Option (Right to Buy) · Derivative 484,280 $0.00 Strike: $11.24 $0.00
Disclosure

SEC source: 0001209191-21-017481 · doc4.xml · derivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 484,280

Underlying: Common Stock · 484,280 shares

Expires 2031-02-12

F1 · derivative.exercise_date: This option shall become exercisable in equal monthly installments over four years following February 9, 2021, so long as the reporting person remains an employee or other service provider of the Company on such dates.

Read SEC document
February 12, 2021 Filed Mar 11, 2021 20:00 UTC Amendment Surface Oncology, Inc. SURF · Entity 109857 GrantStock Option (Right to Buy) · Derivative 484,280 $0.00 Strike: $11.24 $0.00
Disclosure

SEC source: 0001209191-21-019971 · doc4a.xml · derivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 484,280

Underlying: Common Stock · 484,280 shares

Expires 2031-02-12

F1 · derivative.exercise_date: This Amendment to the Form 4 filed by the reporting person on March 3, 2021 is filed to correct the vesting schedule previously reported in Table II. This option shall become exercisable in equal monthly installments over four years following April 1, 2021, so long as the reporting person remains an employee or other service provider of the Company on such dates.

Read SEC document
January 15, 2021 Filed Jan 15, 2021 20:00 UTC Surface Oncology, Inc. SURF · Entity 109857 SaleCommon Stock 2,000 $12.25 $24,500.00
Disclosure

SEC source: 0001209191-21-003916 · doc4.xml · nonDerivative · entry 2

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 89,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2020.

Read SEC document
January 14, 2021 Filed Jan 15, 2021 20:00 UTC Surface Oncology, Inc. SURF · Entity 109857 SaleCommon Stock 7,000 $11.95 $83,650.00
Disclosure

SEC source: 0001209191-21-003916 · doc4.xml · nonDerivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2020.

Read SEC document
December 15, 2020 Filed Dec 17, 2020 20:00 UTC Surface Oncology, Inc. SURF · Entity 109857 SaleCommon Stock 1,000 $10.48 $10,480.00
Disclosure

SEC source: 0001209191-20-064253 · doc4.xml · nonDerivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2020.

Read SEC document
December 11, 2020 Filed Dec 15, 2020 20:00 UTC Surface Oncology, Inc. SURF · Entity 109857 SaleCommon Stock 1,405 $10.05 $14,120.25
Disclosure

SEC source: 0001209191-20-063630 · doc4.xml · nonDerivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2020.

Read SEC document
November 11, 2020 Filed Nov 13, 2020 20:00 UTC Surface Oncology, Inc. SURF · Entity 109857 SaleCommon Stock 595 $10.05 $5,979.75
Disclosure

SEC source: 0001209191-20-058406 · doc4.xml · nonDerivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,405

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2020.

Read SEC document
October 14, 2020 Filed Oct 16, 2020 20:02 UTC Surface Oncology, Inc. SURF · Entity 109857 SaleCommon Stock 4,000 $10.05 $40,200.00
Disclosure

SEC source: 0001209191-20-055191 · doc4.xml · nonDerivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 101,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2020.

Read SEC document
February 03, 2020 Filed Feb 5, 2020 16:05 UTC Surface Oncology, Inc. SURF · Entity 109857 GrantStock Option (Right to Buy) · Derivative 80,000 $0.00 Strike: $3.18 $0.00
Disclosure

SEC source: 0001209191-20-006846 · doc4.xml · derivative · entry 2

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,000

Underlying: Common Stock · 80,000 shares

Expires 2030-02-03

F2 · derivative.exercise_date: This option shall become exercisable in equal monthly installments over four years following January 21, 2020, so long as the reporting person remains an employee or other service provider of the Company on such dates.

Read SEC document
February 03, 2020 Filed Feb 5, 2020 16:05 UTC Surface Oncology, Inc. SURF · Entity 109857 GrantCommon Stock 80,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-006846 · doc4.xml · nonDerivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 105,000

F1 · kind: The shares were acquired pursuant to a restricted stock unit award under the 2018 Stock Option and Incentive Plan. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. The restricted stock units vest in full on the date 18 months after January 21, 2020, so long as the reporting person remains an employee or other service provider of the Company on such date.

Read SEC document
March 01, 2019 Filed Mar 4, 2019 18:05 UTC Surface Oncology, Inc. SURF · Entity 109857 GrantStock Option (Right to Buy) · Derivative 90,000 $0.00 Strike: $4.27 $0.00
Disclosure

SEC source: 0001209191-19-015872 · doc4.xml · derivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 90,000

Underlying: Common Stock · 90,000 shares

Expires 2029-03-01

F1 · derivative.exercise_date: The stock option vests and becomes exercisable in 48 equal monthly installments after February 12, 2019.

Read SEC document
January 04, 2019 Filed Jan 8, 2019 16:05 UTC Surface Oncology, Inc. SURF · Entity 109857 Exercise / conversionStock Option (Right to Buy) · Derivative 25,000 $0.00 Strike: $4.14 $0.00
Disclosure

SEC source: 0000899243-19-000741 · doc4.xml · derivative · entry 2

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 256,578

Underlying: Common Stock · 25,000 shares

Expires 2026-12-09

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The stock option vested and became exercisable with respect to the first 25% of the option grant on November 7, 2017, and the remainder vests and becomes exercisable in 36 equal monthly installments thereafter until November 7, 2020.

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January 04, 2019 Filed Jan 8, 2019 16:05 UTC Surface Oncology, Inc. SURF · Entity 109857 Exercise / conversionCommon Stock 25,000 $4.14 $103,400.00
Disclosure

SEC source: 0000899243-19-000741 · doc4.xml · nonDerivative · entry 1

ROSS ROBERT W. · CIK 0001733077 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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.