Zafgen Inc

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Zafgen Inc
CIK #0001374690
EDGAR Form CIK 2011 - 2026
10-K [0001374690]
10-Q [0001374690]
3 [0001374690]
4 [0001374690]
8-K [0001374690]
D [0001374690]
SC 13D [0001374690]
SC 13G [0001374690]
Form 13D/13G Filer Form 13D/13G Subject Filed
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Form 3/4/5 Subject 2011 - 2026
Zafgen Inc
Hamilton Thomas Edward
Sherman Jeffrey W
Truitt Joseph
Leff Jonathan S
Thomas Frank E
Deerfield Management Company LP
Flynn James E
Deerfield Mgmt HIF LP
Deerfield Private Design Fund IV LP
Deerfield Mgmt III LP
Deerfield Capital LP
Deerfield Private Design Fund III LP
Deerfield Partners LP
Deerfield Healthcare Innovations Fund LP
Deerfield Mgmt IV LP
Clayton Russell
Shankar Gopi
Celano Michael
Ben-Maimon Carole
Barrett Peter
Daniel Thomas O
Chondrial Therapeutics Holdings LLC
Lamattina John L
Perez Robert J
McDonough Cameron Geoffrey
Everett Wendy
Singhal Priya
Hatfield Jeffrey S
Kim Dennis D
Allen Patricia L
McVeigh Brian
Atlas Venture Associates VII Inc
Atlas Venture Associates VII LP
Atlas Venture Fund VII L P
Hughes Thomas E
Booth Bruce
Heller Frances K
Deerfield Special Situations Fund LP
Deerfield International Master Fund LP
Secor Alicia
Loustau Patrick
Starr Kevin P
Goldberg Avi Y
TRV GP LLC
Third Rock Ventures LP
Levin Mark J
Tepper Robert I
Third Rock Ventures GP LP
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Zafgen Inc LRMR
Common Stock
2026-02-27 Buy 831,978 $5.00 4,159,890
Zafgen Inc LRMR
Common Stock
2026-02-27 Buy 1,084,010 $5.00 5,420,050
Zafgen Inc LRMR
Common Stock
2026-02-27 Buy 1,084,012 $5.00 5,420,060
Zafgen Inc LRMR
Common Stock
2026-02-27 Buy 2,000,000 $5.00 10,000,000
Zafgen Inc LRMR
Common Stock
2026-02-27 Buy 100,000 $5.00 500,000
Zafgen Inc LRMR
Common Stock
2026-02-27 Buy 5,000 $5.00 25,000
Zafgen Inc LRMR
Common Stock
2026-02-27 Buy 5,000 $5.00 25,000
Zafgen Inc LRMR
Common Stock
2026-01-26 Grant 25,637 $0.00
Zafgen Inc LRMR
Common Stock
2026-01-26 Grant 25,637 $0.00
Zafgen Inc LRMR
Common Stock
2026-01-26 Grant 100,100 $0.00
Zafgen Inc LRMR
Common Stock
2026-01-26 Grant 37,604 $0.00
Zafgen Inc LRMR
Stock Option (Right to Buy) · derivative
2026-01-26 Grant 153,822 $0.00
Zafgen Inc LRMR
Stock Option (Right to Buy) · derivative
2026-01-26 Grant 153,822 $0.00
Zafgen Inc LRMR
Stock Option (Right to Buy) · derivative
2026-01-26 Grant 600,600 $0.00
Zafgen Inc LRMR
Stock Option (Right to Buy) · derivative
2026-01-26 Grant 225,622 $0.00
Zafgen Inc LRMR
Common Stock
2025-07-31 Buy 3,387,529 $3.20 10,840,093
Zafgen Inc LRMR
Common Stock
2025-07-31 Buy 3,387,539 $3.20 10,840,125
Zafgen Inc LRMR
Common Stock
2025-07-31 Buy 2,599,932 $3.20 8,319,782
Zafgen Inc LRMR
Stock Option (Right to Buy) · derivative
2025-05-13 Grant 19,000 $0.00
Zafgen Inc LRMR
Stock Option (Right to Buy) · derivative
2025-05-13 Grant 19,000 $0.00
showing 20 of 200 most recent transactions
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