Larimar Therapeutics Inc. (LRMR) - Insider Holders & Insider Ownership

List of insiders holdings for Larimar Therapeutics Inc.:
  1. Shares directly owned by the insider.
  2. Shares indirectly owned by the insider.
  3. Total shares owned by the insider (sum of shares directly and indirectly owned).
  4. Total market value if available.
  5. Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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#Insider Holder NameReport
Date Time
Shares Owned
Directly
Indirectly
Total
Shares Owned
Filing
1Flynn James E
Deerfield Mgmt L.P.
DEERFIELD PARTNERS L.P.
DEERFIELD MANAGEMENT CO
Deerfield International Master Fund L.P.
Deerfield Special Situations Fund L.P.
Possible Member of 10% Group
10% Owner
2026-03-02 19:46:5535,667,474
0
35,667,474Form 13D
2Flynn James E
DEERFIELD MANAGEMENT COMPANY L.P.
Deerfield Mgmt III L.P.
Deerfield Mgmt HIF L.P.
Deerfield Mgmt IV L.P.
Deerfield Mgmt L.P.
Deerfield Private Design Fund III L.P.
Deerfield Healthcare Innovations Fund L.P.
Deerfield Private Design Fund IV L.P.
DEERFIELD PARTNERS L.P.
* Director by Deputization
Director
10% Owner
2026-03-02 19:46:5535,667,474
0
35,667,474Form 13D
3CHONDRIAL THERAPEUTICS HOLDINGS LLC
10% Owner
2020-06-30 17:01:206,091,250
0
6,091,250Form 4
4STARR KEVIN P
Director
2015-09-25 16:38:50469,157
2,607,435
3,076,592Form 4
5BEN-MAIMON CAROLE
President and CEO
2026-01-27 17:04:08968,876
155,778
1,124,654Form 4
6Hamilton Thomas Edward
Director
2026-07-08 16:05:03714,798
159,433
874,231Form 4
7Harlow John B. Jr.
President and COO
2026-10-01 16:27:13850,000
0
850,000Form 4
8THIRD ROCK VENTURES LP
Third Rock Ventures GP L.P.
TRV GP LLC
LEVIN MARK J
TEPPER ROBERT I
10% Owner
2016-02-10 16:18:59580,694
0
580,694Form 13G
9Hatfield Jeffrey S.
Chief Executive Officer
2019-01-24 20:25:26525,000
0
525,000Form 4
10Celano Michael
Chief Financial Officer
2026-01-27 17:03:39441,407
0
441,407Form 4
11Singhal Priya
Head of Research & Development
2019-04-04 18:37:07375,000
0
375,000Form 4
12Atlas Venture Fund VII L P
Atlas Venture Associates VII L.P.
Atlas Venture Associates VII Inc.
10% Owner
2021-02-02 13:04:30292,182
0
292,182Form 13G
13Shankar Gopi
Chief Development Officer
2026-01-27 17:04:42230,265
0
230,265Form 4
14Clayton Russell
Chief Medical Officer
2026-01-27 17:04:28225,265
0
225,265Form 4
15Loustau Patrick
President
2016-04-04 21:01:57169,500
0
169,500Form 4
16Hughes Thomas E.
See Remarks
2018-06-29 19:01:18125,247
0
125,247Form 4
17McVeigh Brian
Chief Business Officer
2019-01-24 20:25:34125,000
0
125,000Form 4
18Allen Patricia L
Chief Financial Officer
2019-01-24 20:24:02125,000
0
125,000Form 4
19KIM DENNIS D
Chief Medical Officer
2019-01-24 20:25:0895,000
0
95,000Form 4
20Secor Alicia
Chief Commercial Officer
2016-04-04 21:00:4079,500
0
79,500Form 4
21Flynn James E
DEERFIELD MANAGEMENT COMPANY L.P.
* Director by Deputization
Director
10% Owner
2026-05-20 20:02:480
55,150
55,150Form 4
22LEFF JONATHAN S
Director
2026-05-20 18:03:5755,150
0
55,150Form 4
23SHERMAN JEFFREY W
Director
2026-05-20 16:30:2155,150
0
55,150Form 4
24Truitt Joseph
Director
2026-05-20 16:28:0555,150
0
55,150Form 4
25THOMAS FRANK E
Director
2026-05-20 16:24:5855,150
0
55,150Form 4
26Goldberg Avi Y.
Director
2015-09-21 21:01:1853,734
0
53,734Form 4
27Heller Frances K
Director
2017-10-17 17:11:5247,961
0
47,961Form 4
28EVERETT WENDY
Director
2019-06-27 19:42:2127,000
0
27,000Form 4
29McDonough Cameron Geoffrey
Director
2019-06-27 19:37:4527,000
0
27,000Form 4
30PEREZ ROBERT J
Director
2019-06-27 19:36:4027,000
0
27,000Form 4
31LAMATTINA JOHN L
Director
2019-06-27 19:33:2727,000
0
27,000Form 4
32Booth Bruce
Director
10% Owner
2018-01-05 16:59:548,509
0
8,509Form 4
33Barrett Peter
Director
2022-05-12 20:27:478,300
0
8,300Form 4
34Daniel Thomas O
Director
2021-05-17 17:08:208,300
0
8,300Form 4