TMDX — TransMedics Group, Inc.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2019-05-02.
Performance
Technicals
Others in Healthcare
Measured signals that fired on TMDX
| date | signal | measured base rate |
|---|---|---|
| 2026-08-13 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-08-04 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-06-29 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-05-13 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-04-29 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-03-06 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-17 | TOBIN JAMES R Director | Gift | 18.0K | 0.00 | 0 |
| 2026-07-10 | Hassanein Waleed H President & CEO | Grant or award | 49.7K | 0.00 | 0 |
| 2026-07-10 | Hernandez Gerardo Chief Financial Officer | Grant or award | 17.2K | 0.00 | 0 |
| 2026-07-10 | Corcoran Nicholas See remarks | Grant or award | 11.7K | 0.00 | 0 |
| 2026-06-15 | Gunderson Thomas J. Director | Open-market sale | 9.6K | 75.06 | 722.4K |
| 2026-06-15 | Gunderson Thomas J. Director | Option exercise | 19.3K | 2.21 | 42.6K |
| 2026-05-20 | Lovell Stephanie Director | Grant or award | 2.9K | 0.00 | 0 |
| 2026-05-20 | Kania Edwin Director | Grant or award | 2.9K | 0.00 | 0 |
| 2026-05-20 | Gunderson Thomas J. Director | Grant or award | 2.9K | 0.00 | 0 |
| 2026-05-20 | Basile Edward M Director | Grant or award 10b5-1 plan | 2.9K | 0.00 | 0 |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 526.2M | 5.3M |
| FMR LLC | 506.6M | 5.1M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 190.8M | 1.9M |
| VANGUARD CAPITAL MANAGEMENT LLC | 146.9M | 1.5M |
| STATE STREET CORP | 131.2M | 1.3M |
| Invesco Ltd. | 103.2M | 1.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 93.4M | 939.5K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 88.1M | 885.8K |
| GOLDMAN SACHS GROUP INC | 86.1M | 866.3K |
| GEODE CAPITAL MANAGEMENT, LLC | 83.4M | 839.2K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 4 | 2026-08-17 | 2026-08-17 | on EDGAR ↗ |
| 10-Q | 2026-08-04 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-08-04 | 2026-08-04 | on EDGAR ↗ |
| 4 | 2026-07-14 | 2026-07-10 | on EDGAR ↗ |
| 4 | 2026-07-14 | 2026-07-10 | on EDGAR ↗ |
| 4 | 2026-07-14 | 2026-07-10 | on EDGAR ↗ |
| 4 | 2026-06-17 | 2026-06-15 | on EDGAR ↗ |
| 144 | 2026-06-15 | — | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Rosen Law Firm Announces Investigation of Breaches of Fiduciary Duties by the Directors and Officers of TransMedics Group, Inc. - TMDX · 2026-08-21
- Rosen Law Firm Announces Investigation of Breaches of Fiduciary Duties by the Directors and Officers of TransMedics Group, Inc. - TMDX · 2026-08-18
- TransMedics Group, Inc. (TMDX) filed form 4 · 2026-08-17 · SEC EDGAR
- Rosen Law Firm Announces Investigation of Breaches of Fiduciary Duties by the Directors and Officers of TransMedics Group, Inc. - TMDX · 2026-08-11
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