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Siewers David

Disclosed activity across 1 company

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172994
SEC CIK
0001676906

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Cartesian Therapeutics, Inc.SELB · Entity 6015CFO and TreasurerSeptember 20, 2017September 22, 2017

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.

Cartesian Therapeutics, Inc.

Report date September 20, 2017 · Filed September 22, 2017

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect0 Ending reported balance After 2017-09-20 transaction · row 4
4 source rows · reconciled sequence

Row 1 · 2017-09-20 · Exercise / conversion · Acquired 2,194 · Balance 2,194

F1: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

Row 2 · 2017-09-20 · Sale · Disposed 2,194 · Balance 0

F1: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

Row 3 · 2017-09-20 · Exercise / conversion · Acquired 14,230 · Balance 14,230

F1: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

Row 4 · 2017-09-20 · Sale · Disposed 14,230 · Balance 0

F1: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

Employee Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $0.63 · Expires 2020-09-06Direct0 Reported balance After 2017-09-20 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2017-09-20 · Exercise / conversion · Disposed 2,194 · Balance 0

F1: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

F2: All shares underlying this option are fully vested.

Employee Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $0.63 · Expires 2021-02-16Direct5,000 Reported balance After 2017-09-20 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2017-09-20 · Exercise / conversion · Disposed 14,230 · Balance 5,000

F1: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

F2: All shares underlying this option are fully vested.

Filing footnotes · ownership attribution and instrument terms

F1: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

F2: All shares underlying this option are fully vested.

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
September 20, 2017 Filed Sep 22, 2017 21:30 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 14,230 $0.00 Strike: $0.63 $0.00
Disclosure

SEC source: 0001638599-17-000948 · doc4_4980.xml · derivative · entry 6

Siewers David · CIK 0001676906 · CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 14,230 shares

Expires 2021-02-16

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 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

F2 · derivative.exercise_date: All shares underlying this option are fully vested.

Read SEC document
September 20, 2017 Filed Sep 22, 2017 21:30 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 2,194 $0.00 Strike: $0.63 $0.00
Disclosure

SEC source: 0001638599-17-000948 · doc4_4980.xml · derivative · entry 5

Siewers David · CIK 0001676906 · CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,194 shares

Expires 2020-09-06

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 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

F2 · derivative.exercise_date: All shares underlying this option are fully vested.

Read SEC document
September 20, 2017 Filed Sep 22, 2017 21:30 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 SaleCommon Stock 14,230 $20.00 $284,600.00
Disclosure

SEC source: 0001638599-17-000948 · doc4_4980.xml · nonDerivative · entry 4

Siewers David · CIK 0001676906 · CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

Read SEC document
September 20, 2017 Filed Sep 22, 2017 21:30 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 Exercise / conversionCommon Stock 14,230 $0.63 $8,964.90
Disclosure

SEC source: 0001638599-17-000948 · doc4_4980.xml · nonDerivative · entry 3

Siewers David · CIK 0001676906 · CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,230

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 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

Read SEC document
September 20, 2017 Filed Sep 22, 2017 21:30 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 SaleCommon Stock 2,194 $20.00 $43,880.00
Disclosure

SEC source: 0001638599-17-000948 · doc4_4980.xml · nonDerivative · entry 2

Siewers David · CIK 0001676906 · CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

Read SEC document
September 20, 2017 Filed Sep 22, 2017 21:30 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 Exercise / conversionCommon Stock 2,194 $0.63 $1,382.22
Disclosure

SEC source: 0001638599-17-000948 · doc4_4980.xml · nonDerivative · entry 1

Siewers David · CIK 0001676906 · CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,194

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 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

Read SEC document
July 07, 2017 Filed Jul 11, 2017 20:46 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 GrantStock Option (Right to Buy) · Derivative 20,000 $0.00 Strike: $19.33 $0.00
Disclosure

SEC source: 0001638599-17-000704 · doc4_4848.xml · derivative · entry 1

Siewers David · CIK 0001676906 · CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2027-07-06

F1 · derivative.exercise_date: This option vests as to 25% of the shares on June 16, 2018. The remainder of the shares will vest in 36 equal monthly installments thereafter.

Read SEC document
June 30, 2017 Filed Jul 5, 2017 20:06 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 7,420 $0.00 Strike: $0.63 $0.00
Disclosure

SEC source: 0001638599-17-000675 · doc4_4830.xml · derivative · entry 3

Siewers David · CIK 0001676906 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,194

Underlying: Common Stock · 7,420 shares

Expires 2020-09-06

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 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

F3 · derivative.exercise_date: All shares underlying this option are fully vested.

Read SEC document
June 30, 2017 Filed Jul 5, 2017 20:06 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 SaleCommon Stock 7,420 $20.00 $148,405.19
Disclosure

SEC source: 0001638599-17-000675 · doc4_4830.xml · nonDerivative · entry 2

Siewers David · CIK 0001676906 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $20.00 to $20.02, 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
June 30, 2017 Filed Jul 5, 2017 20:06 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 Exercise / conversionCommon Stock 7,420 $0.63 $4,674.60
Disclosure

SEC source: 0001638599-17-000675 · doc4_4830.xml · nonDerivative · entry 1

Siewers David · CIK 0001676906 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,420

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 · kind: The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

Read SEC document
June 29, 2017 Filed Jun 30, 2017 20:33 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 5,770 $0.00 Strike: $0.63 $0.00
Disclosure

SEC source: 0001638599-17-000668 · doc4_4828.xml · derivative · entry 6

Siewers David · CIK 0001676906 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,614

Underlying: Common Stock · 5,770 shares

Expires 2020-09-06

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.

F2 · shares: The transactions reported for the 5,770 shares were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

F5 · derivative.exercise_date: All shares underlying this option are fully vested.

F2 · derivative.underlying_shares: The transactions reported for the 5,770 shares were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

Read SEC document
June 29, 2017 Filed Jun 30, 2017 20:33 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 Exercise / conversionEmployee Stock Option (right to buy) · Derivative 3,846 $0.00 Strike: $0.47 $0.00
Disclosure

SEC source: 0001638599-17-000668 · doc4_4828.xml · derivative · entry 5

Siewers David · CIK 0001676906 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,846 shares

Expires 2019-09-19

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 · shares: The transactions reported for the 3,846 shares were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

F5 · derivative.exercise_date: All shares underlying this option are fully vested.

F1 · derivative.underlying_shares: The transactions reported for the 3,846 shares were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

Read SEC document
June 29, 2017 Filed Jun 30, 2017 20:33 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 SaleCommon Stock 36 $20.00 $720.00
Disclosure

SEC source: 0001638599-17-000668 · doc4_4828.xml · nonDerivative · entry 4

Siewers David · CIK 0001676906 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F4 · shares: The 36 shares sold were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 14, 2016.

Read SEC document
June 29, 2017 Filed Jun 30, 2017 20:33 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 SaleCommon Stock 9,616 $20.00 $192,321.92
Disclosure

SEC source: 0001638599-17-000668 · doc4_4828.xml · nonDerivative · entry 3

Siewers David · CIK 0001676906 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36

F1 · shares: The transactions reported for the 3,846 shares were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

F2 · shares: The transactions reported for the 5,770 shares were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.00 to $20.01, inclusive. The reporting person undertakes to provide to 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 set forth herein.

Read SEC document
June 29, 2017 Filed Jun 30, 2017 20:33 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 Exercise / conversionCommon Stock 5,770 $0.63 $3,635.10
Disclosure

SEC source: 0001638599-17-000668 · doc4_4828.xml · nonDerivative · entry 2

Siewers David · CIK 0001676906 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,652

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.

F2 · shares: The transactions reported for the 5,770 shares were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

Read SEC document
June 29, 2017 Filed Jun 30, 2017 20:33 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 Exercise / conversionCommon Stock 3,846 $0.47 $1,807.62
Disclosure

SEC source: 0001638599-17-000668 · doc4_4828.xml · nonDerivative · entry 1

Siewers David · CIK 0001676906 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,882

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 · shares: The transactions reported for the 3,846 shares were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

Read SEC document
June 26, 2017 Filed Jun 28, 2017 20:35 UTC Cartesian Therapeutics, Inc. SELB · Entity 6015 SaleCommon Stock 6,886 $20.00 $137,720.00
Disclosure

SEC source: 0001638599-17-000660 · doc4_4822.xml · nonDerivative · entry 1

Siewers David · CIK 0001676906 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36

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.