Joseph S. Zakrzewski

Director, Euthymics Bioscience, Inc.

Companies

AN2 Therapeutics, Inc.Board member Mar 24, 2022 to now¹
Cyteir Therapeutics, Inc.Board member Jun 17, 2021 to Feb 8, 2024²
SANGAMO THERAPEUTICS, INCBoard member Jun 29, 2017 to Mar 1, 2022³
Amarin CorporationBoard member Dec 30, 2010 to Dec 16, 2021⁴
Acceleron PharmaBoard member Sep 18, 2013 to Nov 22, 2021⁵
Insulet (United States)Board member May 12, 2008 to May 18, 2017⁶
Amarin CorporationChief executive officer Dec 30, 2010 to Nov 18, 2013⁴

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

Amarin Corporation AMRN196,547 shares⁷$2.3M at $11.52Dec 15, 2021
AN2 Therapeutics, Inc. ANTX145,538 shares⁸$475.9K at $3.27Aug 14, 2026
SANGAMO THERAPEUTICS, INC SGMOQ60,700 shares⁹$6.7K at $0.11Feb 25, 2022
Acceleron Pharma XLRN0 shares¹⁰Nov 19, 2021
Cyteir Therapeutics, Inc.376,490 shares¹¹Feb 8, 2024

As of each latest filing. The line shows shares held over time.

Recent filings

Aug 14, 2026Gift 405,880 shares of AN2 Therapeutics, Inc.⁸
Apr 10, 2025Granted 10,523 shares of AN2 Therapeutics, Inc.¹²
Dec 19, 2024Granted 9,816 shares of AN2 Therapeutics, Inc.¹³
Nov 27, 2024Bought 2,000 shares at $1.40 of AN2 Therapeutics, Inc.¹⁴
Nov 19, 2024Bought 5,000 shares at $1.01 of AN2 Therapeutics, Inc.¹⁵
Nov 18, 2024Bought 20,000 shares at $1.00 of AN2 Therapeutics, Inc.¹⁵
Feb 6, 2024Exercised options 14,150 shares at $1.69 of Cyteir Therapeutics, Inc.¹¹
Jan 18, 2024Sold 100,000 shares at $19.11 of AN2 Therapeutics, Inc.¹⁶
Dec 7, 2022Bought 21,202 shares at $1.30 of Cyteir Therapeutics, Inc.¹⁷
May 12, 2022Bought 743 shares at $1.61 of Cyteir Therapeutics, Inc.¹⁸
May 11, 2022Bought 1,000 shares at $1.70 of Cyteir Therapeutics, Inc.¹⁹
May 10, 2022Bought 49,406 shares at $1.89 of Cyteir Therapeutics, Inc.¹⁹
Mar 29, 2022Converted 98,199 shares of AN2 Therapeutics, Inc.²⁰
Feb 25, 2022Granted 12,500 shares of SANGAMO THERAPEUTICS, INC⁹
Dec 28, 2021Bought 601 shares at $9.85 of Cyteir Therapeutics, Inc.²¹
Dec 27, 2021Bought 99 shares at $10.18 of Cyteir Therapeutics, Inc.²¹
Dec 27, 2021Bought 200 shares at $9.97 of Cyteir Therapeutics, Inc.²¹
Dec 23, 2021Bought 200 shares at $9.87 of Cyteir Therapeutics, Inc.²¹
Dec 17, 2021Bought 200 shares at $9.88 of Cyteir Therapeutics, Inc.²²
Dec 15, 2021Bought 2,000 shares at $3.16 of Amarin Corporation⁷
Dec 15, 2021Bought 1,700 shares at $11.12 of Cyteir Therapeutics, Inc.²³
Dec 15, 2021Bought 2,000 shares at $10.47 of Cyteir Therapeutics, Inc.²³
Dec 14, 2021Bought 10,000 shares at $3.27 of Amarin Corporation⁷
Nov 19, 2021U 34,499 shares of Acceleron Pharma¹⁰

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARAN2 Therapeutics, Inc., Board member
2
SEC EDGARCyteir Therapeutics, Inc., Board member
3
SEC EDGARSANGAMO THERAPEUTICS, INC, Board member
4
SEC EDGARAmarin Corporation, Board member
5
SEC EDGARAcceleron Pharma, Board member
6
SEC EDGARInsulet (United States), Board member
7
SEC EDGARAmarin Corporation shares after the filing of Dec 15, 2021
8
SEC EDGARAN2 Therapeutics, Inc. shares after the filing of Aug 14, 2026
9
SEC EDGARSANGAMO THERAPEUTICS, INC shares after the filing of Feb 25, 2022
10
SEC EDGARAcceleron Pharma shares after the filing of Nov 19, 2021
11
SEC EDGARCyteir Therapeutics, Inc. shares after the filing of Feb 8, 2024
12
SEC EDGARForm 4 filed Apr 11, 2025
13
SEC EDGARForm 4 filed Dec 23, 2024
14
SEC EDGARForm 4 filed Nov 27, 2024
15
SEC EDGARForm 4 filed Nov 20, 2024
16
SEC EDGARForm 4 filed Jan 19, 2024
17
SEC EDGARForm 4 filed Dec 8, 2022
18
SEC EDGARForm 4 filed May 16, 2022
19
SEC EDGARForm 4 filed May 12, 2022
20
SEC EDGARForm 4 filed Mar 31, 2022
21
SEC EDGARForm 4 filed Dec 28, 2021
22
SEC EDGARForm 4 filed Dec 21, 2021
23
SEC EDGARForm 4 filed Dec 15, 2021