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Dianthus Therapeutics, Inc. /DE/

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1813
SEC CIK
0001690585
Parsed reports
289

Last 12 months

Inside the activity.

0 purchase rows · 66 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202504
Dec 202501
Jan 202600
Feb 202600
Mar 2026021
Apr 202601
May 202601
Jun 202605
Jul 202603
Aug 2026022
Sep 202608
Oct 202600

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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 dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
December 02, 2019 Filed Dec 3, 2019 01:29 UTC
COOKE MICHAEL P.Chief Scientific Officer
Salecommon stock 2,500 $13.21 $33,036.00
Disclosure

SEC source: 0001562180-19-005782 · primarydocument.xml · nonDerivative · entry 3

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 240,523

F3 · price: This transaction was executed in multiple trades at prices ranging from $12.75 to $13.35. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the staff of the U.S. Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
December 02, 2019 Filed Dec 3, 2019 01:29 UTC
COOKE MICHAEL P.Chief Scientific Officer
Salecommon stock 1,373 $13.31 $18,279.30
Disclosure

SEC source: 0001562180-19-005782 · primarydocument.xml · nonDerivative · entry 2

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 243,023

F2 · price: This transaction was executed in multiple trades at prices ranging from $13.25 to $13.39. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the staff of the U.S. Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
December 02, 2019 Filed Dec 3, 2019 01:29 UTC
COOKE MICHAEL P.Chief Scientific Officer
Salecommon stock 3,627 $12.74 $46,204.72
Disclosure

SEC source: 0001562180-19-005782 · primarydocument.xml · nonDerivative · entry 1

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 244,396

F1 · price: This transaction was executed in multiple trades at prices ranging from $12.25 to $13.20. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the staff of the U.S. Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
November 20, 2019 Filed Nov 26, 2019 01:52 UTC
COOKE MICHAEL P.Chief Scientific Officer
Salecommon stock 5,000 $12.00 $60,000.00
Disclosure

SEC source: 0001562180-19-005711 · primarydocument.xml · nonDerivative · entry 1

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 248,023

Read SEC document
November 01, 2019 Filed Nov 2, 2019 00:02 UTC
COOKE MICHAEL P.Chief Scientific Officer
Salecommon stock 5,000 $10.67 $53,333.50
Disclosure

SEC source: 0001562180-19-005307 · primarydocument.xml · nonDerivative · entry 1

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 253,023

F1 · price: This transaction was executed in multiple trades at prices ranging from $10.35 to $10.715. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the staff of the U.S. Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
October 01, 2019 Filed Oct 3, 2019 20:50 UTC
COOKE MICHAEL P.Chief Scientific Officer
SaleCommon Stock 5,000 $10.01 $50,064.00
Disclosure

SEC source: 0001562180-19-005101 · primarydocument.xml · nonDerivative · entry 1

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 258,023

F1 · price: This transaction was executed in multiple trades at prices ranging from $9.515 to $10.22. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the staff of the U.S. Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
September 19, 2019 Filed Sep 19, 2019 20:26 UTC
COOKE MICHAEL P.Chief Scientific Officer
Salecommon stock 1,656 $12.00 $19,872.00
Disclosure

SEC source: 0001562180-19-004884 · primarydocument.xml · nonDerivative · entry 1

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 263,023

F1 · kind: This trade is pursuant to an active 10b5-1 plan.

Read SEC document
September 12, 2019 Filed Sep 16, 2019 22:36 UTC
COOKE MICHAEL P.Chief Scientific Officer
Salecommon stock 844 $12.00 $10,128.00
Disclosure

SEC source: 0001562180-19-004830 · primarydocument.xml · nonDerivative · entry 1

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 264,679

F1 · kind: This trade is pursuant to an active 10b5-1 plan.

Read SEC document
September 03, 2019 Filed Sep 4, 2019 21:06 UTC
COOKE MICHAEL P.Chief Scientific Officer
SaleCommon Stock 5,000 $10.11 $50,531.00
Disclosure

SEC source: 0001562180-19-004630 · primarydocument.xml · nonDerivative · entry 1

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 265,523

F1 · kind: This trade is pursuant to an active 10b5-1 plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $9.81 to $10.225. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the staff of the U.S. Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
August 01, 2019 Filed Aug 1, 2019 20:14 UTC
COOKE MICHAEL P.Chief Scientific Officer
Salecommon stock 2,500 $13.41 $33,522.50
Disclosure

SEC source: 0001562180-19-004122 · primarydocument.xml · nonDerivative · entry 2

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 270,523

F1 · kind: This trade is pursuant to an active 10b5-1 plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $13.40 to $13.4325. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the staff of the U.S. Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
August 01, 2019 Filed Aug 1, 2019 20:14 UTC
COOKE MICHAEL P.Chief Scientific Officer
Salecommon stock 5,000 $13.42 $67,108.50
Disclosure

SEC source: 0001562180-19-004122 · primarydocument.xml · nonDerivative · entry 1

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 273,023

F1 · kind: This trade is pursuant to an active 10b5-1 plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $13.40 to $13.4325. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the staff of the U.S. Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
July 01, 2019 Filed Jul 2, 2019 14:51 UTC
COOKE MICHAEL P.Chief Scientific Officer
Salecommon stock 2,500 $14.42 $36,050.50
Disclosure

SEC source: 0001562180-19-003734 · primarydocument.xml · nonDerivative · entry 2

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 278,023

F1 · kind: This trade is pursuant to an active 10b5-1 plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $14.20 to $14.80. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the staff of the U.S. Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
July 01, 2019 Filed Jul 2, 2019 14:51 UTC
COOKE MICHAEL P.Chief Scientific Officer
Salecommon stock 5,000 $14.39 $71,932.50
Disclosure

SEC source: 0001562180-19-003734 · primarydocument.xml · nonDerivative · entry 1

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 280,523

F1 · kind: This trade is pursuant to an active 10b5-1 plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $14.20 to $14.80. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the staff of the U.S. Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
June 21, 2019 Filed Jun 24, 2019 16:02 UTC
ISACSON CHRISTINA K.Chief Business Officer
SaleCommon Stock 5,415 $16.07 $87,019.05
Disclosure

SEC source: 0001562180-19-003624 · primarydocument.xml · nonDerivative · entry 1

ISACSON CHRISTINA K. · CIK 0001741281 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,116

F1 · kind: This trade is pursuant to an active 10b5-1 plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $16.00 to $16.22. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the staff of the U.S. Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
June 21, 2019 Filed Jun 24, 2019 20:02 UTC
GARDNER JASONDirector · See Remarks
SaleCommon Stock 12,331 $15.11 $186,321.41
Disclosure

SEC source: 0001562180-19-003623 · primarydocument.xml · nonDerivative · entry 2

GARDNER JASON · CIK 0001741286 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 349,212

F1 · kind: This trade is pursuant to an active 10b5-1 plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $15.10 to $15.23. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the staff of the U.S. Securities and Exchange Commission, the issuer or a security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
June 20, 2019 Filed Jun 24, 2019 21:04 UTC GrantStock Option (Right to Buy) · Derivative 36,377 $0.00 Strike: $14.94 $0.00
Disclosure

SEC source: 0000899243-19-017955 · doc4.xml · derivative · entry 1

McGeorge Anne · CIK 0001779934 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,377

Underlying: Common Stock · 36,377 shares

Expires 2029-06-19

F1 · derivative.exercise_date: This option shall vest and become exercisable over three years, with 33% of this option vesting on June 20, 2020, and the remainder vesting in 24 equal monthly installments thereafter.

Read SEC document
June 20, 2019 Filed Jun 24, 2019 20:02 UTC
GARDNER JASONDirector · See Remarks
SaleCommon Stock 1,669 $15.10 $25,201.90
Disclosure

SEC source: 0001562180-19-003623 · primarydocument.xml · nonDerivative · entry 1

GARDNER JASON · CIK 0001741286 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 361,543

F1 · kind: This trade is pursuant to an active 10b5-1 plan.

Read SEC document
June 17, 2019 Filed Jun 18, 2019 21:18 UTC
COOKE MICHAEL P.Chief Scientific Officer
Salecommon stock 7,500 $13.90 $104,267.25
Disclosure

SEC source: 0001562180-19-003585 · primarydocument.xml · nonDerivative · entry 1

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 285,523

F1 · kind: This trade is pursuant to an active 10b5-1 plan.

F2 · price: This transaction was executed in multiple trades at prices ranging from $13.72 to $14.20. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Read SEC document
June 07, 2019 Filed Jun 11, 2019 21:13 UTC GrantStock Option (Right to Buy) · Derivative 18,188 $0.00 Strike: $13.40 $0.00
Disclosure

SEC source: 0000899243-19-016422 · doc4.xml · derivative · entry 1

Albers Jeffrey W. · CIK 0001638474 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,188

Underlying: Common Stock · 18,188 shares

Expires 2029-06-06

F1 · derivative.exercise_date: This option shall vest and become exercisable in full upon the earlier to occur of (a) June 7, 2020 or (b) the next annual meeting of the Issuer's stockholders.

Read SEC document
June 07, 2019 Filed Jun 11, 2019 21:13 UTC GrantStock Option (Right to Buy) · Derivative 18,188 $0.00 Strike: $13.40 $0.00
Disclosure

SEC source: 0000899243-19-016421 · doc4.xml · derivative · entry 1

RONNEBERG AMY L · CIK 0001380292 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,188

Underlying: Common Stock · 18,188 shares

Expires 2029-06-06

F1 · derivative.exercise_date: This option shall vest and become exercisable in full upon the earlier to occur of (a) June 7, 2020 or (b) the next annual meeting of the Issuer's stockholders.

Read SEC document
June 07, 2019 Filed Jun 11, 2019 21:12 UTC GrantStock Option (Right to Buy) · Derivative 18,188 $0.00 Strike: $13.40 $0.00
Disclosure

SEC source: 0000899243-19-016419 · doc4.xml · derivative · entry 1

Scadden David · CIK 0001707715 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,188

Underlying: Common Stock · 18,188 shares

Expires 2029-06-06

F1 · derivative.exercise_date: This option shall vest and become exercisable in full upon the earlier to occur of (a) June 7, 2020 or (b) the next annual meeting of the Issuer's stockholders.

Read SEC document
June 07, 2019 Filed Jun 11, 2019 21:07 UTC
Booth BruceDirector
GrantStock Option (Right to Buy) · Derivative 18,188 $0.00 Strike: $13.40 $0.00
Disclosure

SEC source: 0000899243-19-016414 · doc4.xml · derivative · entry 1

Booth Bruce · CIK 0001451612 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,188

Underlying: Common Stock · 18,188 shares

Expires 2029-06-06

F1 · derivative.exercise_date: This option shall vest and become exercisable in full upon the earlier to occur of (a) June 7, 2020 or (b) the next annual meeting of the Issuer's stockholders.

F2 · ownership.direct: This option was granted to The Reporting Person, a director of the Issuer. The proceeds of any sale of shares of common stock issued to The Reporting Person upon exercise of this option will be transferred to Atlas Venture Life Science Advisors, LLC and as such, The Reporting Person disclaims ownership of such securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any.

Read SEC document
June 07, 2019 Filed Jun 11, 2019 21:06 UTC GrantStock Option (Right to Buy) · Derivative 18,188 $0.00 Strike: $13.40 $0.00
Disclosure

SEC source: 0000899243-19-016413 · doc4.xml · derivative · entry 1

Daniel Thomas O · CIK 0001538894 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,188

Underlying: Common Stock · 18,188 shares

Expires 2029-06-06

F1 · derivative.exercise_date: This option shall vest and become exercisable in full upon the earlier to occur of (a) June 7, 2020 or (b) the next annual meeting of the Issuer's stockholders.

Read SEC document
June 07, 2019 Filed Jun 11, 2019 21:03 UTC
Byers BlakeDirector
GrantStock Option (Right to Buy) · Derivative 18,188 $0.00 Strike: $13.40 $0.00
Disclosure

SEC source: 0000899243-19-016410 · doc4.xml · derivative · entry 1

BYERS BLAKE · CIK 0001741840 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,188

Underlying: Common Stock · 18,188 shares

Expires 2029-06-06

F1 · derivative.exercise_date: This option shall vest and become exercisable in full upon the earlier to occur of (a) June 7, 2020 or (b) the next annual meeting of the Issuer's stockholders.

Read SEC document
June 07, 2019 Filed Jun 11, 2019 21:00 UTC GrantStock Option (Right to Buy) · Derivative 18,188 $0.00 Strike: $13.40 $0.00
Disclosure

SEC source: 0000899243-19-016407 · doc4.xml · derivative · entry 1

Borisy Alexis · CIK 0001319446 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,188

Underlying: Common Stock · 18,188 shares

Expires 2029-06-06

F1 · derivative.exercise_date: This option shall vest and become exercisable in full upon the earlier to occur of (a) June 7, 2020 or (b) the next annual meeting of the Issuer's stockholders.

Read SEC document
June 07, 2019 Filed Jun 11, 2019 20:59 UTC GrantStock Option (Right to Buy) · Derivative 18,188 $0.00 Strike: $13.40 $0.00
Disclosure

SEC source: 0000899243-19-016406 · doc4.xml · derivative · entry 1

BONNEY MICHAEL W · CIK 0001219016 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,188

Underlying: Common Stock · 18,188 shares

Expires 2029-06-06

F1 · derivative.exercise_date: This option shall vest and become exercisable in full upon the earlier to occur of (a) June 7, 2020 or (b) the next annual meeting of the Issuer's stockholders.

Read SEC document
March 20, 2019 Filed Mar 22, 2019 21:01 UTC
Booth BruceDirector
SaleCommon Stock 14,245 $17.86 $254,415.70
Disclosure

SEC source: 0001209191-19-021014 · doc4.xml · nonDerivative · entry 3

Booth Bruce · CIK 0001451612 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold by AVA X LP in multiple transactions at prices ranging from $17.75 to $18.14, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of 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.

F4 · ownership.nature: The shares are held directly by AVA X LP. AVA X LLC is the general partner of AVA X LP. Dr. Booth is a member of AVA X LLC and disclaims beneficial ownership of such securities held by AVF X and AVA X LP, except to the extent of his pecuniary interest therein, if any.

Read SEC document
March 20, 2019 Filed Mar 22, 2019 21:01 UTC
Booth BruceDirector
OtherCommon Stock 14,245 $0.00 $0.00
Disclosure

SEC source: 0001209191-19-021014 · doc4.xml · nonDerivative · entry 2

Booth Bruce · CIK 0001451612 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 14,245

F3 · kind: Represents the shares received by AVA X LP in connection with the pro rata distribution described in footnote 1 by AVF X.

F4 · ownership.nature: The shares are held directly by AVA X LP. AVA X LLC is the general partner of AVA X LP. Dr. Booth is a member of AVA X LLC and disclaims beneficial ownership of such securities held by AVF X and AVA X LP, except to the extent of his pecuniary interest therein, if any.

Read SEC document
March 20, 2019 Filed Mar 22, 2019 21:01 UTC
Booth BruceDirector
OtherCommon Stock 726,500 $0.00 $0.00
Disclosure

SEC source: 0001209191-19-021014 · doc4.xml · nonDerivative · entry 1

Booth Bruce · CIK 0001451612 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,117,125

F1 · kind: Represents a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund X, L.P. ("AVF X") to its general partner and limited partners without additional consideration.

F2 · ownership.nature: The shares are held directly by AVF X. The general partner of AVF X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Dr. Booth is a member of AVA X LLC and disclaims beneficial ownership of such securities held by AVF X and AVA X LP, except to the extent of his pecuniary interest therein, if any.

Read SEC document
March 20, 2019 Filed Mar 22, 2019 21:03 UTC SaleCommon Stock 14,245 $17.86 $254,415.70
Disclosure

SEC source: 0001209191-19-021017 · doc4.xml · nonDerivative · entry 3

Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner

ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner

Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold by AVA X LP in multiple transactions at prices ranging from $17.75 to $18.14, 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.

F4 · ownership.nature: The shares are held directly by AVA X LP. AVA X LLC is the general partner of AVA X LP. AVA X LLC disclaims Section 16 beneficial ownership of the securities held by AVA X LP, except to the extent of its pecuniary interest therein, if any.

Read SEC document
March 20, 2019 Filed Mar 22, 2019 21:03 UTC OtherCommon Stock 14,245 $0.00 $0.00
Disclosure

SEC source: 0001209191-19-021017 · doc4.xml · nonDerivative · entry 2

Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner

ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner

Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 14,245

F3 · kind: Represents the shares received by AVA X LP in connection with the pro rata distribution described in footnote 1 by AVF X.

F4 · ownership.nature: The shares are held directly by AVA X LP. AVA X LLC is the general partner of AVA X LP. AVA X LLC disclaims Section 16 beneficial ownership of the securities held by AVA X LP, except to the extent of its pecuniary interest therein, if any.

Read SEC document
March 20, 2019 Filed Mar 22, 2019 21:03 UTC OtherCommon Stock 726,500 $0.00 $0.00
Disclosure

SEC source: 0001209191-19-021017 · doc4.xml · nonDerivative · entry 1

Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner

ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner

Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,117,125

F1 · kind: Represents a pro rata distribution, and not a purchase or sale of securities, by Atlas Venture Fund X, L.P. ("AVF X") to its general partner and limited partners without additional consideration.

F2 · ownership.direct: The shares are held directly by AVF X. The general partner of AVF X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by AVF X, except to the extent of its pecuniary interest therein, if any.

Read SEC document
February 27, 2019 Filed Feb 14, 2020 21:55 UTC GiftCommon Stock 150,000 $0.00 $0.00
Disclosure

SEC source: 0000899243-20-004667 · doc5.xml · nonDerivative · entry 1

BONNEY MICHAEL W · CIK 0001219016 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,346

Read SEC document
February 05, 2019 Filed Feb 7, 2019 21:19 UTC
COOKE MICHAEL P.Chief Scientific Officer
GrantStock Option (Right to Buy) · Derivative 64,000 $0.00 Strike: $7.13 $0.00
Disclosure

SEC source: 0000899243-19-002870 · doc4.xml · derivative · entry 1

COOKE MICHAEL P. · CIK 0001741288 · Chief Scientific Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,000

Underlying: Common Stock · 64,000 shares

Expires 2029-02-04

F1 · derivative.exercise_date: This option shall vest and become exercisable in 12 equal quarterly installments beginning on January 1, 2019.

Read SEC document
February 05, 2019 Filed Feb 7, 2019 16:16 UTC
ISACSON CHRISTINA K.Chief Business Officer
GrantStock Option (Right to Buy) · Derivative 80,000 $0.00 Strike: $7.13 $0.00
Disclosure

SEC source: 0000899243-19-002865 · doc4.xml · derivative · entry 1

ISACSON CHRISTINA K. · CIK 0001741281 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,000

Underlying: Common Stock · 80,000 shares

Expires 2029-02-04

F1 · derivative.exercise_date: This option shall vest and become exercisable in 12 equal quarterly installments beginning on January 1, 2019.

Read SEC document
February 05, 2019 Filed Feb 7, 2019 21:23 UTC
ZDRAVESKI ZORANSee Remarks
GrantStock Option (Right to Buy) · Derivative 80,000 $0.00 Strike: $7.13 $0.00
Disclosure

SEC source: 0000899243-19-002874 · doc4.xml · derivative · entry 1

ZDRAVESKI ZORAN · CIK 0001741285 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,000

Underlying: Common Stock · 80,000 shares

Expires 2029-02-04

F1 · derivative.exercise_date: This option shall vest and become exercisable in 12 equal quarterly installments beginning on January 1, 2019.

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February 05, 2019 Filed Feb 7, 2019 21:20 UTC
DAVIS JOHN C. JRChief Medical Officer
GrantStock Option (Right to Buy) · Derivative 70,000 $0.00 Strike: $7.13 $0.00
Disclosure

SEC source: 0000899243-19-002872 · doc4.xml · derivative · entry 1

DAVIS JOHN C. JR · CIK 0001741287 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,000

Underlying: Common Stock · 70,000 shares

Expires 2029-02-04

F1 · derivative.exercise_date: This option shall vest and become exercisable in 12 equal quarterly installments beginning on January 1, 2019.

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February 05, 2019 Filed Feb 7, 2019 21:18 UTC
GARDNER JASONDirector · See Remarks
GrantStock Option (Right to Buy) · Derivative 182,900 $0.00 Strike: $7.13 $0.00
Disclosure

SEC source: 0000899243-19-002869 · doc4.xml · derivative · entry 1

GARDNER JASON · CIK 0001741286 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 182,900

Underlying: Common Stock · 182,900 shares

Expires 2029-02-04

F1 · derivative.exercise_date: This option shall vest and become exercisable in 12 equal quarterly installments beginning on January 1, 2019.

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January 02, 2019 Filed Jan 4, 2019 21:16 UTC
Ryan JasonSee Remarks
GrantStock Option (Right to Buy) · Derivative 329,379 $0.00 Strike: $6.00 $0.00
Disclosure

SEC source: 0000899243-19-000527 · doc4.xml · derivative · entry 1

Ryan Jason · CIK 0001585017 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 329,379

Underlying: Common Stock · 329,379 shares

Expires 2029-01-01

F1 · derivative.exercise_date: This option shall vest and become exerciseable over four years, with 25% of this option vesting on January 1, 2020, and the remainder vesting in 36 equal monthly installments thereafter.

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September 25, 2018 Filed Sep 27, 2018 20:15 UTC GrantStock Option (Right to Buy) · Derivative 52,244 $0.00 Strike: $11.67 $0.00
Disclosure

SEC source: 0000899243-18-025421 · doc4.xml · derivative · entry 1

RONNEBERG AMY L · CIK 0001380292 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,244

Underlying: Common Stock · 52,244 shares

Expires 2028-09-24

F1 · derivative.exercise_date: This option shall vest and become exercisable in 16 equal quarterly installments beginning on March 6, 2018.

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June 25, 2018 Filed Jun 27, 2018 16:30 UTC
ISACSON CHRISTINA K.Chief Business Officer
ConversionSeries B Preferred Stock · Derivative 857 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-18-018331 · doc4.xml · derivative · entry 3

ISACSON CHRISTINA K. · CIK 0001741281 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 331 shares

Expires not disclosed

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_price: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · price: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

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June 25, 2018 Filed Jun 27, 2018 16:30 UTC
ISACSON CHRISTINA K.Chief Business Officer
ConversionSeries A Preferred Stock · Derivative 6,670 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-18-018331 · doc4.xml · derivative · entry 2

ISACSON CHRISTINA K. · CIK 0001741281 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,581 shares

Expires not disclosed

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_price: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · price: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

Read SEC document
June 25, 2018 Filed Jun 27, 2018 16:30 UTC
ISACSON CHRISTINA K.Chief Business Officer
ConversionCommon Stock 2,912 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-18-018331 · doc4.xml · nonDerivative · entry 1

ISACSON CHRISTINA K. · CIK 0001741281 · Chief Business Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,531

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 · price: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

Read SEC document
June 25, 2018 Filed Jun 27, 2018 20:36 UTC ConversionSeries C Preferred Stock · Derivative 16,094 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-18-018341 · doc4.xml · derivative · entry 6

Scadden David · CIK 0001707715 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,228 shares

Expires not disclosed

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_price: The Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · price: The Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: The Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: The Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

Read SEC document
June 25, 2018 Filed Jun 27, 2018 20:36 UTC ConversionSeries B Preferred Stock · Derivative 6,429 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-18-018341 · doc4.xml · derivative · entry 5

Scadden David · CIK 0001707715 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,488 shares

Expires not disclosed

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_price: The Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · price: The Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: The Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: The Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

Read SEC document
June 25, 2018 Filed Jun 27, 2018 20:36 UTC ConversionSeries A Preferred Stock · Derivative 50,025 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-18-018341 · doc4.xml · derivative · entry 4

Scadden David · CIK 0001707715 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 19,360 shares

Expires not disclosed

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_price: The Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · price: The Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: The Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: The Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

Read SEC document
June 25, 2018 Filed Jun 27, 2018 20:36 UTC PurchaseCommon Stock 6,600 $15.00 $99,000.00
Disclosure

SEC source: 0000899243-18-018341 · doc4.xml · nonDerivative · entry 2

Scadden David · CIK 0001707715 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 228,175

F2 · shares: Reflects shares that were purchased through a directed share program in connection with the Issuer's initial public offering.

Read SEC document
June 25, 2018 Filed Jun 27, 2018 20:36 UTC ConversionCommon Stock 28,076 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-18-018341 · doc4.xml · nonDerivative · entry 1

Scadden David · CIK 0001707715 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 221,575

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 · price: The Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

Read SEC document
June 25, 2018 Filed Jun 27, 2018 20:36 UTC ConversionSeries B Preferred Stock · Derivative 204,339 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-18-018342 · doc4.xml · derivative · entry 3

Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner

ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner

Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 79,079 shares

Expires not disclosed

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_price: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · price: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F2 · ownership.direct: The shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any.

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June 25, 2018 Filed Jun 27, 2018 20:36 UTC ConversionSeries A Preferred Stock · Derivative 12,061,496 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-18-018342 · doc4.xml · derivative · entry 2

Atlas Venture Fund X, L.P. · CIK 0001628098 · 10% owner

ATLAS VENTURE ASSOCIATES X, L.P. · CIK 0001742766 · 10% owner

Atlas Venture Associates X, LLC · CIK 0001742765 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,667,797 shares

Expires not disclosed

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_price: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · price: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: The Series A Preferred Stock and Series B Preferred Stock (collectively, the "Preferred Stock") converted into Common Stock on a 2.58398:1 basis upon the closing of the Issuer's initial public offering on June 25, 2018. The Preferred Stock had no expiration date.

F2 · ownership.direct: The shares are held directly by Atlas Venture Fund X, L.P. ("Atlas Venture Fund X"). The general partner of Atlas Venture Fund X is Atlas Venture Associates X, L.P. ("AVA X LP"). Atlas Venture Associates X, LLC ("AVA X LLC") is the general partner of AVA X LP. Each of AVA X LP and AVA X LLC disclaims Section 16 beneficial ownership of the securities held by Atlas Venture Fund X, except to the extent of its pecuniary interest therein, if any.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.