Treace Medical Concepts, Inc. (TMCI) Insider Trading
Over the last 3 months, TMCI insiders made 7 open-market buys and 0 sales, a net purchase of $557K (SEC Form 4). Over the last 6 months, 73 institutions increased and 64 reduced their position (13F).
Insider Activity
Sentiment
100/100
Buys (3m)
7
Sells (3m)
0
Net (3m)
$556.8K
Insiders buying
Insider trades by month Buys Sells
Aug
Sep
Mar
May
Jun
Aug
Context3-month price +30%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 24, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 11,000 | $4.34 |
| Aug 24, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 39,944 | $4.44 |
| Aug 24, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 5,000 | $4.35 |
| Aug 12, 2026 | Scanlan Sean F.officer: Chief Innovation Officer | Tax | 9,814 | — |
| Aug 12, 2026 | Hair Markofficer: Chief Financial Officer | Tax | 37,102 | — |
| Aug 12, 2026 | Elder Scot Michaelofficer: Chief Legl & Comp Off, CorpSec | Tax | 16,253 | — |
| Jun 12, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 14,715 | $4.02 |
| Jun 12, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 9,891 | $4.04 |
| Jun 11, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 22,887 | $4.04 |
| Jun 11, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 29,430 | $4.02 |
| Jun 1, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 50,000 | $3.56 |
| May 28, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 61,202 | $3.02 |
| May 28, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 49,810 | $2.87 |
| May 28, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 4,508 | $2.79 |
| May 19, 2026 | Kiernan Jane Edirector | Grant | 30,000 | — |
| May 19, 2026 | Berry Lance Adirector | Grant | 30,000 | — |
| May 19, 2026 | Jain Deeptidirector | Grant | 30,000 | — |
| May 19, 2026 | Hanna Betsydirector | Grant | 30,000 | — |
| May 19, 2026 | HAMILTON LAWRENCE Wdirector | Grant | 30,000 | — |
| May 19, 2026 | BAKEWELL JOHN Kdirector | Grant | 30,000 | — |
| May 14, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 61,750 | $2.62 |
| May 14, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 43,000 | $2.17 |
| May 14, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Buy | 49,013 | $2.46 |
| Apr 20, 2026 | Hair Markofficer: Chief Financial Officer | Tax | 11,547 | — |
| Apr 3, 2026 | Hair Markofficer: Chief Financial Officer | Grant | 100,000 | — |
| Mar 11, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Tax | 5,021 | — |
| Mar 11, 2026 | Hair Markofficer: Chief Financial Officer | Tax | 3,695 | — |
| Mar 11, 2026 | Elder Scot Michaelofficer: Chief Legl & Comp Off, CorpSec | Tax | 175 | — |
| Mar 11, 2026 | Treace John T.director, 10 percent owner, officer: Chief Executive Officer | Tax | 2,062 | — |
| Mar 11, 2026 | Scanlan Sean F.officer: Chief Innovation Officer | Tax | 1,396 | — |
Source: TMCI SEC Form 4 filings, latest Aug 24, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their TMCI positions over the last 6 months (SEC Form 13F).
Increased
73
New positions
64
Reduced
64
Sold out
30
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| ARMISTICE CAPITAL, LLC | Unchanged | 6.4M | Aug 14, 2026 |
| ARMISTICE CAPITAL, LLC | Unchanged | 6.4M | May 15, 2026 |
| GAGNON SECURITIES LLC | Increased | 5.2M | Apr 22, 2026 |
| BLACKROCK, INC. | Reduced | 3.3M | May 13, 2026 |
| BANK OF AMERICA CORP /DE/ | Increased | 3.3M | Aug 14, 2026 |
| BANK OF AMERICA CORP /DE/ | Increased | 3.2M | May 18, 2026 |
| GAGNON SECURITIES LLC | Reduced | 3.0M | Aug 5, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 2.0M | Aug 13, 2026 |
| Gagnon Advisors, LLC | New Position | 1.5M | Aug 5, 2026 |
| AQR CAPITAL MANAGEMENT LLC | Increased | 1.5M | Aug 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 1.5M | May 15, 2026 |
| BlackRock, Inc. | Reduced | 1.4M | Aug 7, 2026 |
| MARSHALL WACE, LLP | Increased | 1.3M | Aug 13, 2026 |
| STATE STREET CORP | Increased | 1.2M | May 15, 2026 |
| CIBC Bancorp USA Inc. | New Position | 1.2M | May 12, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.