Larimar Therapeutics, Inc. (LRMR)

Latest Insider Confidence Score

2026Q1

54.2
Bullish

Company insider confidence (by quarter)

2014Q2 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Deerfield Mgmt HIF, L.P. Director 4,721,197 Feb 16, 2024
Deerfield Healthcare Innovations Fund, L.P. Director 4,721,197 Feb 16, 2024
Deerfield Partners, L.P. Director 4,721,197 Feb 16, 2024
Deerfield Mgmt L.P. Director 4,721,197 Feb 16, 2024
Deerfield Mgmt IV, L.P. Director 4,721,197 Feb 16, 2024

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Feb 27, 2026 Mar 2, 2026 Flynn James E Director Buy 100.0 +5,000,000 16.34% ✗ $25M
Feb 27, 2026 Mar 2, 2026 Hamilton Thomas Edward Director Buy 97.5 +100,000 13.81% ✗ $500K
Feb 27, 2026 Mar 2, 2026 THOMAS FRANK E Director Buy 91.3 +5,000 250.00% ✗ $25K
Feb 27, 2026 Mar 2, 2026 SHERMAN JEFFREY W Director Buy 91.3 +5,000 100.00% ✗ $25K
Jan 26, 2026 Jan 27, 2026 Shankar Gopi Chief Development Officer Neutral 90.0 +25,637 50.46% ✗ -
Jan 26, 2026 Jan 27, 2026 Clayton Russell Chief Medical Officer Neutral 90.0 +25,637 55.97% ✗ -
Jan 26, 2026 Jan 27, 2026 BEN-MAIMON CAROLE CEO Neutral 90.0 +100,100 23.61% ✗ -
Jan 26, 2026 Jan 27, 2026 Celano Michael CFO Neutral 90.0 +37,604 21.10% ✗ -
Jul 31, 2025 Aug 4, 2025 Flynn James E Director Buy 100.0 +9,375,000 44.16% ✗ $30M
May 13, 2025 May 15, 2025 Flynn James E Director Neutral 52.5 - 0.00% ✗ -
May 13, 2025 May 14, 2025 SHERMAN JEFFREY W Director Neutral 52.5 - 0.00% ✗ -
May 13, 2025 May 14, 2025 Truitt Joseph Director Neutral 52.5 - 0.00% ✗ -
May 13, 2025 May 14, 2025 Hamilton Thomas Edward Director Neutral 52.5 - 0.00% ✗ -
May 13, 2025 May 14, 2025 THOMAS FRANK E Director Neutral 52.5 - 0.00% ✗ -
May 13, 2025 May 14, 2025 LEFF JONATHAN S Director Neutral 52.5 - 0.00% ✗ -
Jan 22, 2025 Jan 24, 2025 Shankar Gopi Chief Development Officer Neutral 90.0 +23,306 84.75% ✗ -
Jan 22, 2025 Jan 24, 2025 Clayton Russell Chief Medical Officer Neutral 90.0 +23,306 103.58% ✗ -
Jan 22, 2025 Jan 24, 2025 BEN-MAIMON CAROLE CEO Neutral 90.0 +91,000 27.33% ✗ -
Jan 22, 2025 Jan 24, 2025 Celano Michael CFO Neutral 90.0 +34,185 23.74% ✗ -
May 29, 2024 Jun 3, 2024 Flynn James E Director Neutral 52.5 - 0.00% ✗ -
May 29, 2024 May 31, 2024 THOMAS FRANK E Director Neutral 52.5 - 0.00% ✗ -
May 29, 2024 May 31, 2024 LEFF JONATHAN S Director Neutral 52.5 - 0.00% ✗ -
May 29, 2024 May 31, 2024 SHERMAN JEFFREY W Director Neutral 52.5 - 0.00% ✗ -
May 29, 2024 May 31, 2024 Truitt Joseph Director Neutral 52.5 - 0.00% ✗ -
Feb 16, 2024 May 31, 2024 Hamilton Thomas Edward Director Buy 92.5 +57,208 8.58% ✗ $500K
Feb 16, 2024 Feb 16, 2024 Flynn James E Director Buy 100.0 +4,290,617 25.33% ✗ $37.5M
Feb 14, 2024 Feb 15, 2024 THOMAS FRANK E Director Buy 91.3 +2,000 100.00% ✗ $22K
Jan 17, 2024 Jan 19, 2024 Shankar Gopi Chief Development Officer Neutral 90.0 +22,500 450.00% ✗ -
Jan 17, 2024 Jan 19, 2024 Celano Michael CFO Neutral 90.0 +31,250 27.72% ✗ -
Jan 17, 2024 Jan 19, 2024 Clayton Russell Chief Medical Officer Neutral 90.0 +22,500 100.00% ✗ -
Jan 17, 2024 Jan 19, 2024 BEN-MAIMON CAROLE CEO Neutral 90.0 +66,125 24.78% ✗ -
Dec 7, 2023 Dec 8, 2023 Shankar Gopi Chief Development Officer Buy 91.3 +5,000 100.00% ✗ $18.7K
Oct 3, 2023 Oct 5, 2023 SHERMAN JEFFREY W Director Neutral 52.5 - 0.00% ✗ -
Oct 5, 2023 SHERMAN JEFFREY W Director Neutral 52.5 - 0.00% ✗ -
Jul 17, 2023 Jul 18, 2023 Clayton Russell Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Jul 18, 2023 Clayton Russell Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
May 17, 2023 May 18, 2023 Celano Michael CFO Buy 83.8 +5,000 4.64% ✗ $18.6K
May 17, 2023 May 18, 2023 BEN-MAIMON CAROLE CEO Buy 78.8 +5,000 1.91% ✗ $18.5K
May 17, 2023 May 18, 2023 Truitt Joseph Director Buy 91.3 +2,750 100.00% ✗ $10.3K
May 9, 2023 May 11, 2023 Flynn James E Director Neutral 52.5 - 0.00% ✗ -
May 9, 2023 May 11, 2023 Truitt Joseph Director Neutral 52.5 - 0.00% ✗ -
May 9, 2023 May 11, 2023 Hamilton Thomas Edward Director Neutral 52.5 - 0.00% ✗ -
May 9, 2023 May 11, 2023 LEFF JONATHAN S Director Neutral 52.5 - 0.00% ✗ -
May 9, 2023 May 11, 2023 THOMAS FRANK E Director Neutral 52.5 - 0.00% ✗ -
Feb 7, 2023 Feb 9, 2023 Shankar Gopi Chief Development Officer Neutral 52.5 - 0.00% ✗ -
Feb 9, 2023 Shankar Gopi Chief Development Officer Neutral 52.5 - 0.00% ✗ -
Jan 31, 2023 Feb 2, 2023 Celano Michael CFO Neutral 90.0 +76,000 239.40% ✗ -
Jan 31, 2023 Feb 2, 2023 BEN-MAIMON CAROLE CEO Neutral 90.0 +205,000 360.73% ✗ -
Sep 16, 2022 Sep 20, 2022 Flynn James E Director Buy 100.0 +11,111,108 190.58% ✗ $35M
Sep 20, 2022 DEERFIELD PARTNERS, L.P. Director Neutral 52.5 - 0.00% ✗ -
Sep 16, 2022 Sep 20, 2022 Hamilton Thomas Edward Director Buy 97.5 +317,460 90.82% ✗ $1000K
Sep 16, 2022 Sep 19, 2022 Celano Michael CFO Buy 95.0 +31,746 100.00% ✗ $100K
Sep 16, 2022 Sep 19, 2022 BEN-MAIMON CAROLE CEO Buy 95.0 +31,746 126.56% ✗ $100K
May 10, 2022 May 12, 2022 BEN-MAIMON CAROLE CEO Neutral 52.5 - 0.00% ✗ -
May 10, 2022 May 12, 2022 Celano Michael CFO Neutral 52.5 - 0.00% ✗ -
May 10, 2022 May 12, 2022 Truitt Joseph Director Neutral 52.5 - 0.00% ✗ -
May 10, 2022 May 12, 2022 Barrett Peter Director Neutral 52.5 - 0.00% ✗ -
May 10, 2022 May 12, 2022 Hamilton Thomas Edward Director Neutral 52.5 - 0.00% ✗ -
May 10, 2022 May 12, 2022 LEFF JONATHAN S Director Neutral 52.5 - 0.00% ✗ -
May 10, 2022 May 12, 2022 THOMAS FRANK E Director Neutral 52.5 - 0.00% ✗ -
May 10, 2022 May 11, 2022 Flynn James E Director Neutral 52.5 - 0.00% ✗ -
Jan 18, 2022 Jan 20, 2022 Celano Michael CFO Neutral 52.5 - 0.00% ✗ -
Jan 18, 2022 Jan 20, 2022 BEN-MAIMON CAROLE CEO Neutral 52.5 - 0.00% ✗ -
Jun 30, 2021 Jul 2, 2021 Flynn James E Director Buy 100.0 +685,710 13.33% ✗ $6M
Jun 30, 2021 Jul 2, 2021 Hamilton Thomas Edward Director Buy 97.5 +56,710 19.36% ✗ $496.2K
May 12, 2021 May 20, 2021 Truitt Joseph Director Neutral 52.5 - 0.00% ✗ -
May 12, 2021 May 17, 2021 Flynn James E Director Neutral 52.5 - 0.00% ✗ -
May 12, 2021 May 17, 2021 LEFF JONATHAN S Director Neutral 52.5 - 0.00% ✗ -
May 12, 2021 May 17, 2021 Daniel Thomas O Director Neutral 52.5 - 0.00% ✗ -
May 12, 2021 May 17, 2021 Barrett Peter Director Neutral 52.5 - 0.00% ✗ -
May 12, 2021 May 17, 2021 THOMAS FRANK E Director Neutral 52.5 - 0.00% ✗ -
May 12, 2021 May 17, 2021 Hamilton Thomas Edward Director Neutral 52.5 - 0.00% ✗ -
Jan 19, 2021 Jan 21, 2021 BEN-MAIMON CAROLE CEO Neutral 52.5 - 0.00% ✗ -
Jan 19, 2021 Jan 21, 2021 Celano Michael CFO Neutral 52.5 - 0.00% ✗ -
Sep 29, 2020 Oct 1, 2020 Flynn James E Director Neutral 52.5 - 0.00% ✗ -
Sep 29, 2020 Sep 30, 2020 Hamilton Thomas Edward Director Neutral 52.5 - 0.00% ✗ -
Sep 29, 2020 Sep 30, 2020 Daniel Thomas O Director Neutral 52.5 - 0.00% ✗ -
Sep 29, 2020 Sep 30, 2020 Barrett Peter Director Neutral 52.5 - 0.00% ✗ -
Sep 29, 2020 Sep 30, 2020 Celano Michael CFO Neutral 52.5 - 0.00% ✗ -
Sep 29, 2020 Sep 30, 2020 Truitt Joseph Director Neutral 52.5 - 0.00% ✗ -
Sep 29, 2020 Sep 30, 2020 LEFF JONATHAN S Director Neutral 52.5 - 0.00% ✗ -
Sep 29, 2020 Sep 30, 2020 THOMAS FRANK E Director Neutral 52.5 - 0.00% ✗ -
Sep 29, 2020 Sep 30, 2020 BEN-MAIMON CAROLE CEO Neutral 52.5 - 0.00% ✗ -
Jun 26, 2020 Jun 30, 2020 Hamilton Thomas Edward Director Neutral 90.0 +292,853 219.50% ✗ -
Jun 26, 2020 Jun 30, 2020 CHONDRIAL THERAPEUTICS HOLDINGS, LLC 10% Owner Neutral 27.5 -6,091,242 -100.00% ✗ -
Jun 26, 2020 Jun 30, 2020 BEN-MAIMON CAROLE CEO Neutral 90.0 +25,083 100.00% ✗ -
Jun 8, 2020 Flynn James E Director Neutral 52.5 - 0.00% ✗ -
Jun 5, 2020 CHONDRIAL THERAPEUTICS HOLDINGS, LLC 10% Owner Neutral 52.5 - 0.00% ✗ -
May 28, 2020 Jun 5, 2020 Celano Michael CFO Neutral 52.5 - 0.00% ✗ -
Jun 5, 2020 Celano Michael CFO Neutral 52.5 - 0.00% ✗ -
Jun 5, 2020 BEN-MAIMON CAROLE CEO Neutral 52.5 - 0.00% ✗ -
Jun 5, 2020 LEFF JONATHAN S Director Neutral 52.5 - 0.00% ✗ -
Jun 5, 2020 Truitt Joseph Director Neutral 52.5 - 0.00% ✗ -
Jun 5, 2020 Hamilton Thomas Edward Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2019 Jun 27, 2019 EVERETT WENDY Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2019 Jun 27, 2019 McDonough Cameron Geoffrey Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2019 Jun 27, 2019 PEREZ ROBERT J Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2019 Jun 27, 2019 THOMAS FRANK E Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2019 Jun 27, 2019 Daniel Thomas O Director Neutral 52.5 - 0.00% ✗ -
Jun 26, 2019 Jun 27, 2019 Barrett Peter Director Neutral 52.5 - 0.00% ✗ -