TRANSMEDICS GROUP INC TMDX
COM · Common Stock · CUSIP 89377M109 · ISIN US89377M1099
- SectorHealth care
- IndustryElectromedical & Electrotherapeutic Apparatus
- HeadquartersAndover, MA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($1.8m this quarter). Holder counts are more reliable. Shares outstanding: 31.9m as of 2022-10-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $61.69. Options: 8 managers hold calls ($19.5m notional), 8 hold puts ($7.8m).
Trends to Q4 2022
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 179 |
| Q4 2022 | 200 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $24.1m | $14.4m | 0.60 |
| Q4 2022 | $19.5m | $7.8m | 0.40 |
Biggest buyers
| LORD, ABBETT & CO. LLC | Added | +1.6m |
| AMERICAN CENTURY COMPANIES INC | New | +380.8k |
| D. E. Shaw & Co., Inc. | Added | +297.1k |
| Allspring Global Investments Holdings, LLC | Added | +267.9k |
| BAILLIE GIFFORD & CO | Added | +218.0k |
| MACQUARIE GROUP LTD | Added | +197.3k |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | Added | +130.3k |
| Ophir Asset Management Pty Ltd | Added | +122.6k |
| BlackRock Inc. | Added | +112.1k |
| First Light Asset Management, LLC | Added | +111.3k |
Biggest sellers
| FMR LLC | Reduced | -663.5k |
| AXA S.A. | Reduced | -462.8k |
| Avidity Partners Management LP | Sold out | -300.0k |
| NEXT CENTURY GROWTH INVESTORS LLC | Reduced | -177.6k |
| Bank of New York Mellon Corp | Reduced | -171.1k |
| FIL Ltd | Sold out | -154.6k |
| Sandhill Capital Partners LLC | Reduced | -139.4k |
| FRED ALGER MANAGEMENT, LLC | Reduced | -135.6k |
| Soleus Capital Management, L.P. | Reduced | -131.8k |
| CREDIT SUISSE AG/ | Reduced | -128.0k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $13.8m223.6k shares |
| GROUP ONE TRADING LLC | Reduced | $2.7m43.8k shares |
| CITADEL ADVISORS LLC | Reduced | $1.8m28.5k shares |
| JANE STREET GROUP, LLC | Reduced | $530.8k8.6k shares |
| Walleye Trading LLC | Reduced | $296.3k4.8k shares |
| Walleye Capital LLC | Added | $228.4k3.7k shares |
| SIMPLEX TRADING, LLC | Reduced | $178.0k2.9k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| PURA VIDA INVESTMENTS, LLC | New | $5.6m90.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $660.4k10.7k shares |
| CITADEL ADVISORS LLC | Reduced | $623.4k10.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $493.0k8.0k shares |
| JANE STREET GROUP, LLC | Reduced | $234.5k3.8k shares |
| Walleye Capital LLC | Unchanged | $166.6k2.7k shares |
| GROUP ONE TRADING LLC | New | $37.0k600 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| FMR LLC 13G · institution +2.1 pts · filed 2025-05-12 | 15.0% |
| BlackRock, Inc. 13G · institution filed 2025-07-18 | 14.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.7% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.1% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q4 2022
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2021 | 0 | — | 0 | — | — |
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 1 | $2.3m | 1 | $101.6k | — |
| Q1 2022 | 0 | — | 1 | $112.5k | — |
| Q2 2022 | 0 | — | 2 | $1.9m | — |
| Q3 2022 | 0 | — | 5 | $12.4m | — |
| Q4 2022 | 0 | — | 8 | $7.5m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2022-12-15 | DAMME LAURA VP, Clinical Affairs | Sold | $294.5k5.0k shares |
| 2022-12-14 | DAMME LAURA VP, Clinical Affairs | Sold | $371.3k5.9k shares |
| 2022-12-13 | Provost Miriam VP, Global Regulatory Affairs | Sold | $269.8k4.3k shares |
| 2022-12-09 | Provost Miriam VP, Global Regulatory Affairs | Sold | $213.2k3.6k shares |
| 2022-12-02 | Carey John F VP of Operations | Sold | $635.0k10.0k shares |
| 2022-12-01 | Gordon Stephen Chief Financial Officer | Sold | $613.0k10.0k shares |
| 2022-12-01 | Carey John F VP of Operations | Sold | $183.9k3.0k shares |
| 2022-11-23 | Lovell Stephanie Director | Sold | $336.6k5.7k shares |
| 2022-11-22 | Lovell Stephanie Director | Sold | $284.1k4.9k shares |
| 2022-11-15 | Hassanein Waleed H President & CEO, director | Sold | $870.9k14.5k shares |
| 2022-11-15 | Khayal Tamer I Chief Commercial Officer | Sold | $255.5k4.3k shares |
| 2022-11-11 | Hassanein Waleed H President & CEO, director | Sold | $165.0k2.7k shares |
| 2022-11-11 | Khayal Tamer I Chief Commercial Officer | Sold | $162.2k2.7k shares |
| 2022-11-10 | Weill David Director | Sold | $1.2m21.6k shares |
| 2022-11-07 | Gordon Stephen Chief Financial Officer | Sold | $567.2k10.0k shares |
| 2022-11-07 | Khayal Tamer I Chief Commercial Officer | Sold | $182.8k3.0k shares |
| 2022-11-07 | Hassanein Waleed H President & CEO, director | Sold | $166.3k2.8k shares |
| 2022-11-01 | Carey John F VP of Operations | Sold | $147.1k3.0k shares |
| 2022-10-03 | Gordon Stephen Chief Financial Officer | Sold | $417.4k10.0k shares |
| 2022-10-03 | Carey John F VP of Operations | Sold | $126.3k3.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2022
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.02% of their portfolio | 3.3m $202.2m | Reduced -663.5k |
| LORD, ABBETT & CO. LLC 0.26% of their portfolio | 2.4m $146.6m | Added +1.6m |
| BlackRock Inc. 0.00% of their portfolio | 2.3m $142.6m | Added +112.1k |
| MACQUARIE GROUP LTD 0.14% of their portfolio | 1.9m $120.2m | Added +197.3k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.7m $104.4m | Added +46.7k |
| Sandhill Capital Partners LLC 7.93% of their portfolio | 1.2m $74.3m | Reduced -139.4k |
| Driehaus Capital Management LLC 1.01% of their portfolio | 1.1m $68.0m | Added +104.8k |
| CREDIT SUISSE AG/ 0.07% of their portfolio | 1.0m $64.0m | Reduced -128.0k |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 4.31% of their portfolio | 957.3k $59.1m | Added +130.3k |
| STATE STREET CORP 0.00% of their portfolio | 707.4k $43.7m | Added +13.2k |
| Bellevue Group AG 0.56% of their portfolio | 682.1k $42.1m | Added +28.2k |
| NEXT CENTURY GROWTH INVESTORS LLC 4.64% of their portfolio | 626.6k $38.7m | Reduced -177.6k |
| Allspring Global Investments Holdings, LLC 0.06% of their portfolio | 597.5k $36.9m | Added +267.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 570.3k $35.2m | Added +25.6k |
| EMERALD ADVISERS, LLC 1.68% of their portfolio | 562.7k $34.7m | Added +67.7k |
| Ophir Asset Management Pty Ltd 5.96% of their portfolio | 502.2k $31.0m | Added +122.6k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 467.5k $28.9m | Reduced -171.1k |
| EMERALD MUTUAL FUND ADVISERS TRUST 1.69% of their portfolio | 441.8k $27.3m | Added +57.3k |
| AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio | 380.8k $23.5m | New |
| D. E. Shaw & Co., Inc. 0.04% of their portfolio | 374.7k $23.1m | Added +297.1k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.47% of their portfolio | 373.5k $23.1m | Reduced -19.4k |
| MORGAN STANLEY 0.00% of their portfolio | 332.9k $20.5m | Reduced -35.7k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 311.6k $19.2m | Added +5.1k |
| Invesco Ltd. 0.01% of their portfolio | 311.3k $19.2m | Reduced -28.9k |
| BRAIDWELL LP 0.63% of their portfolio | 303.2k $18.7m | First filing |
| FRED ALGER MANAGEMENT, LLC 0.10% of their portfolio | 300.2k $18.5m | Reduced -135.6k |
| Nicholas Investment Partners, LP 1.57% of their portfolio | 289.7k $17.9m | Added +12.1k |
| First Light Asset Management, LLC 1.52% of their portfolio | 265.1k $16.4m | Added +111.3k |
| BAILLIE GIFFORD & CO 0.02% of their portfolio | 253.3k $15.6m | Added +218.0k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 252.9k $15.6m | Reduced -1.3k |
| Kent Lake Capital LLC 9.22% of their portfolio | 250.0k $15.4m | Unchanged |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 247.2k $15.3m | Added +105.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 233.6k $14.4m | Added +7.5k |
| AXA S.A. 0.05% of their portfolio | 207.6k $12.8m | Reduced -462.8k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 196.0k $12.1m | Reduced -17.8k |
| ROYCE & ASSOCIATES LP 0.12% of their portfolio | 192.0k $11.9m | Added +40.0k |
| ArrowMark Colorado Holdings LLC 0.11% of their portfolio | 147.4k $9.1m | Reduced -52.9k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 143.0k $8.8m | Added +65.5k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.26% of their portfolio | 134.9k $8.3m | Reduced -4.1k |
| CASTLEARK MANAGEMENT LLC 0.42% of their portfolio | 131.3k $8.1m | Added +13.0k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 127.0k $7.8m | Added +55.3k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 122.2k $7.5m | Reduced -50.7k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.04% of their portfolio | 116.4k $7.2m | Reduced -30.3k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 110.8k $6.8m | Added +1.6k |
| Lisanti Capital Growth, LLC 0.87% of their portfolio | 103.2k $6.4m | Unchanged |
| Balyasny Asset Management L.P. 0.02% of their portfolio | 98.3k $6.1m | New |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 95.2k $5.9m | Reduced -18.7k |
| PURA VIDA INVESTMENTS, LLC 0.93% of their portfolio | 90.0k $5.6m | Reduced -30.0k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.04% of their portfolio | 88.7k $5.5m | Reduced -46.6k |
| Global IMC LLC 1.36% of their portfolio | 85.0k $5.2m | Added +19.3k |
| Bullseye Asset Management LLC 2.77% of their portfolio | 83.0k $5.1m | Added +1.3k |
| OBERWEIS ASSET MANAGEMENT INC/ 1.08% of their portfolio | 82.4k $5.1m | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 78.5k $4.8m | Added +15.3k |
| TUDOR INVESTMENT CORP ET AL 0.12% of their portfolio | 76.2k $4.7m | Reduced -6.8k |
| Swiss National Bank 0.00% of their portfolio | 71.9k $4.4m | Added +1.3k |
| NATIXIS 0.03% of their portfolio | 71.4k $4.4m | Added +34.4k |
| ESSEX INVESTMENT MANAGEMENT CO LLC 0.58% of their portfolio | 60.5k $3.7m | Reduced -12.3k |
| Calamos Advisors LLC 0.02% of their portfolio | 60.2k $3.7m | Reduced -5.5k |
| Informed Momentum Co LLC 0.74% of their portfolio | 57.9k $3.6m | Reduced -19.4k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 56.3k $3.5m | Added +45.3k |
| Parkman Healthcare Partners LLC 0.91% of their portfolio | 55.4k $3.4m | Added +13.0k |
| Quadrature Capital Ltd 0.10% of their portfolio | 52.1k $3.2m | Added +32.9k |
| Schonfeld Strategic Advisors LLC 0.03% of their portfolio | 49.2k $3.0m | Added +20.5k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 48.4k $3.0m | Reduced -34.2k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 45.9k $2.8m | Added +14.6k |
| Ensign Peak Advisors, Inc 0.01% of their portfolio | 43.8k $2.7m | Added +3.6k |
| Soleus Capital Management, L.P. 0.39% of their portfolio | 43.5k $2.7m | Reduced -131.8k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 40.2k $2.5m | Added +30.9k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 40.0k $2.5m | Added +3.9k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 39.2k $2.4m | Added +8.4k |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 38.9k $2.4m | New |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 38.7k $2.4m | New |
| Cubist Systematic Strategies, LLC 0.02% of their portfolio | 38.4k $2.4m | Reduced -33.4k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 38.1k $2.4m | Added +421 |
| Divisadero Street Capital Management, LP 1.75% of their portfolio | 38.0k $2.3m | Reduced -82.0k |
| PUTNAM INVESTMENTS LLC 0.00% of their portfolio | 36.9k $2.3m | New |
| Bridgewater Associates, LP 0.01% of their portfolio | 35.8k $2.2m | Reduced -11.1k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 35.7k $2.2m | Added +2.1k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 35.2k $2.2m | Added +18.0k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 33.6k $2.1m | Reduced -77.6k |
| Legato Capital Management LLC 0.39% of their portfolio | 33.1k $2.0m | New |
| Mariner, LLC 0.01% of their portfolio | 32.1k $2.0m | Reduced -2.4k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 31.9k $2.0m | Added +3.7k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 31.7k $2.0m | Added +10.7k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 30.8k $1.9m | Added +19.1k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 28.2k $1.7m | Reduced -7.9k |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.19% of their portfolio | 25.9k $1.6m | Reduced -482 |
| Jump Financial, LLC 0.08% of their portfolio | 24.1k $1.5m | Reduced -5.1k |
| Trexquant Investment LP 0.04% of their portfolio | 21.8k $1.3m | New |
| Squarepoint Ops LLC 0.01% of their portfolio | 21.1k $1.3m | Added +2.6k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 20.6k $1.3m | Reduced -20.8k |
| Financial Advocates Investment Management 0.09% of their portfolio | 19.4k $1.2m | Added +6.5k |
| ClariVest Asset Management LLC 0.06% of their portfolio | 19.1k $1.2m | Reduced -200 |
| Millrace Asset Group, Inc. 1.26% of their portfolio | 17.9k $1.1m | Reduced -2.4k |
| AtonRa Partners 1.36% of their portfolio | 17.3k $1.1m | Reduced -3.2k |
| ADVISORY RESEARCH INC 0.10% of their portfolio | 17.1k $1.1m | Added +9.2k |
| Gotham Asset Management, LLC 0.03% of their portfolio | 17.0k $1.1m | New |
| MetLife Investment Management, LLC 0.01% of their portfolio | 16.2k $999.2k | Unchanged |
| NISA INVESTMENT ADVISORS, LLC 0.01% of their portfolio | 15.6k $961.0k | Unchanged |
| NewEdge Advisors, LLC 0.00% of their portfolio | 15.4k $35.6k | Added +664 |