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 ($2.5m this quarter). Holder counts are more reliable. Shares outstanding: 32.6m as of 2023-07-31, 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 ≈ $83.97. Options: 12 managers hold calls ($17.3m notional), 9 hold puts ($12.6m).
Trends to Q2 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 179 |
| Q4 2022 | 200 |
| Q1 2023 | 224 |
| Q2 2023 | 241 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 108 | 76 |
| Q1 2023 | 121 | 93 |
| Q2 2023 | 148 | 90 |
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 |
| Q1 2023 | $35.6m | $18.6m | 0.52 |
| Q2 2023 | $17.3m | $12.6m | 0.73 |
Biggest buyers
| Invesco Ltd. | Added | +658.5k |
| FRED ALGER MANAGEMENT, LLC | Added | +505.9k |
| Allspring Global Investments Holdings, LLC | Added | +346.7k |
| Divisadero Street Capital Management, LP | Added | +265.0k |
| Eagle Health Investments LP | New | +232.0k |
| GOLDMAN SACHS GROUP INC | Added | +219.6k |
| Iron Triangle Partners LP | New | +180.0k |
| Ophir Asset Management Pty Ltd | Added | +172.9k |
| WELLS FARGO & COMPANY/MN | Added | +161.0k |
| BARCLAYS PLC | Added | +136.0k |
Biggest sellers
| FMR LLC | Reduced | -3.2m |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | Reduced | -234.5k |
| Sandhill Capital Partners LLC | Reduced | -174.8k |
| KORNITZER CAPITAL MANAGEMENT INC /KS | Reduced | -172.0k |
| D. E. Shaw & Co., Inc. | Reduced | -120.0k |
| AMERICAN CENTURY COMPANIES INC | Reduced | -114.6k |
| BRAIDWELL LP | Sold out | -98.5k |
| CITADEL ADVISORS LLC | Reduced | -77.3k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | Sold out | -72.4k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Reduced | -67.9k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $4.8m56.8k shares |
| Divisadero Street Capital Management, LP | New | $3.4m40.2k shares |
| JANE STREET GROUP, LLC | Added | $2.6m30.5k shares |
| GROUP ONE TRADING LLC | Reduced | $2.0m23.7k shares |
| CITADEL ADVISORS LLC | Reduced | $1.9m22.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.1m12.8k shares |
| MILLENNIUM MANAGEMENT LLC | New | $839.8k10.0k shares |
| Walleye Trading LLC | Reduced | $453.5k5.4k shares |
| Cubist Systematic Strategies, LLC | Unchanged | $243.5k2.9k shares |
| Walleye Capital LLC | Reduced | $159.6k1.9k shares |
Biggest puts
| WOLVERINE ASSET MANAGEMENT LLC | New | $5.4m64.4k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $4.1m48.9k shares |
| CITADEL ADVISORS LLC | Added | $1.2m14.6k shares |
| JANE STREET GROUP, LLC | Reduced | $747.4k8.9k shares |
| Walleye Capital LLC | Added | $680.2k8.1k shares |
| Walleye Trading LLC | Reduced | $327.5k3.9k shares |
| SIMPLEX TRADING, LLC | Reduced | $50.0k600 shares |
| GROUP ONE TRADING LLC | Reduced | $25.2k300 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 Q2 2023
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 |
|---|---|---|---|---|---|
| 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 | — |
| Q1 2023 | 0 | — | 7 | $12.8m | — |
| Q2 2023 | 0 | — | 3 | $3.4m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-06-01 | Hassanein Waleed H President & CEO, director | Sold | $537.3k7.5k shares |
| 2023-05-01 | Hassanein Waleed H President & CEO, director | Sold | $586.0k7.5k shares |
| 2023-05-01 | Gordon Stephen Chief Financial Officer | Sold | $395.2k5.0k shares |
| 2023-04-21 | Khayal Tamer I Chief Commercial Officer | Sold | $1.0m12.0k shares |
| 2023-04-21 | Khayal Tamer I Chief Commercial Officer | Sold | $249.9k2.8k shares |
| 2023-04-03 | Hassanein Waleed H President & CEO, director | Sold | $561.2k7.5k 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, Q2 2023
| Manager | Shares | Change |
|---|---|---|
| LORD, ABBETT & CO. LLC 0.54% of their portfolio | 3.7m $314.0m | Added +31.3k |
| FMR LLC 0.02% of their portfolio | 3.3m $277.8m | Reduced -3.2m |
| BlackRock Inc. 0.01% of their portfolio | 2.3m $193.9m | Added +54.8k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.8m $149.9m | Added +66.4k |
| MACQUARIE GROUP LTD 0.16% of their portfolio | 1.7m $142.3m | Reduced -51.2k |
| FRED ALGER MANAGEMENT, LLC 0.71% of their portfolio | 1.6m $138.5m | Added +505.9k |
| Allspring Global Investments Holdings, LLC 0.17% of their portfolio | 1.3m $108.7m | Added +346.7k |
| Invesco Ltd. 0.03% of their portfolio | 1.3m $107.4m | Added +658.5k |
| Driehaus Capital Management LLC 1.23% of their portfolio | 1.2m $97.6m | Added +90.0k |
| Sandhill Capital Partners LLC 6.22% of their portfolio | 812.8k $68.3m | Reduced -174.8k |
| CREDIT SUISSE AG/ 0.07% of their portfolio | 787.3k $66.1m | Reduced -34.7k |
| STATE STREET CORP 0.00% of their portfolio | 781.1k $65.6m | Added +40.8k |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 2.87% of their portfolio | 671.7k $56.4m | Reduced -234.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 642.7k $54.0m | Added +41.9k |
| Bellevue Group AG 0.73% of their portfolio | 612.6k $51.4m | Reduced -16.9k |
| MORGAN STANLEY 0.00% of their portfolio | 591.3k $49.7m | Added +60.5k |
| NEXT CENTURY GROWTH INVESTORS LLC 3.58% of their portfolio | 442.9k $37.2m | Reduced -35.1k |
| EMERALD ADVISERS, LLC 1.60% of their portfolio | 436.1k $36.6m | Added +5.5k |
| Ophir Asset Management Pty Ltd 7.32% of their portfolio | 418.4k $35.1m | Added +172.9k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 397.1k $33.3m | Reduced -20.7k |
| First Light Asset Management, LLC 2.48% of their portfolio | 377.5k $31.7m | Added +39.6k |
| Nicholas Investment Partners, LP 2.11% of their portfolio | 367.6k $30.9m | Added +223 |
| EMERALD MUTUAL FUND ADVISERS TRUST 1.61% of their portfolio | 354.5k $29.8m | Added +1.1k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 333.9k $28.0m | Added +16.7k |
| SEI INVESTMENTS CO 0.05% of their portfolio | 327.8k $27.5m | Added +55.7k |
| Divisadero Street Capital Management, LP 8.14% of their portfolio | 325.0k $27.3m | Added +265.0k |
| D. E. Shaw & Co., Inc. 0.04% of their portfolio | 322.0k $27.0m | Reduced -120.0k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 317.8k $26.7m | Added +219.6k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 245.8k $20.6m | Reduced -1.8k |
| BAILLIE GIFFORD & CO 0.02% of their portfolio | 241.6k $20.3m | Reduced -11.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 241.0k $20.2m | Added +7.3k |
| Eagle Health Investments LP 3.64% of their portfolio | 232.0k $19.5m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 183.5k $15.4m | Added +161.0k |
| Iron Triangle Partners LP 2.07% of their portfolio | 180.0k $15.1m | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 161.0k $13.5m | Reduced -28.2k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 158.1k $13.3m | Added +18.4k |
| BARCLAYS PLC 0.01% of their portfolio | 151.5k $12.7m | Added +136.0k |
| AXA S.A. 0.04% of their portfolio | 142.8k $12.0m | Reduced -16.6k |
| ROYCE & ASSOCIATES LP 0.11% of their portfolio | 137.5k $11.5m | Reduced -22.0k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 135.7k $11.4m | Added +85.6k |
| CASTLEARK MANAGEMENT LLC 0.50% of their portfolio | 132.5k $11.1m | Added +1.3k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 131.2k $11.0m | Reduced -114.6k |
| OBERWEIS ASSET MANAGEMENT INC/ 1.30% of their portfolio | 127.0k $10.7m | Added +18.7k |
| ArrowMark Colorado Holdings LLC 0.11% of their portfolio | 120.1k $10.1m | Added +7.6k |
| Granahan Investment Management, LLC 0.31% of their portfolio | 119.7k $10.1m | Added +49.7k |
| Kent Lake Capital LLC 4.60% of their portfolio | 119.1k $10.0m | Added +14.2k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.18% of their portfolio | 111.3k $9.3m | Reduced -172.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 111.2k $9.3m | Added +11.5k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.25% of their portfolio | 110.4k $9.3m | Reduced -2.3k |
| Ziegler Capital Management, LLC 0.34% of their portfolio | 106.1k $8.9m | Added +36.0k |
| Russell Investments Group, Ltd. 0.02% of their portfolio | 99.4k $8.3m | Added +11.3k |
| BNP PARIBAS FINANCIAL MARKETS 0.02% of their portfolio | 99.1k $8.3m | Added +13.8k |
| PUTNAM INVESTMENTS LLC 0.01% of their portfolio | 95.2k $8.0m | Added +68.1k |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 91.6k $7.7m | Added +51.1k |
| Ensign Peak Advisors, Inc 0.02% of their portfolio | 89.6k $7.5m | Added +6.5k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 85.1k $7.1m | Added +2.2k |
| Quadrature Capital Ltd 0.15% of their portfolio | 83.5k $7.0m | Reduced -1.7k |
| Bullseye Asset Management LLC 3.50% of their portfolio | 83.0k $7.0m | Unchanged |
| Soleus Capital Management, L.P. 0.69% of their portfolio | 74.2k $6.2m | Added +55.2k |
| ADVISORY RESEARCH INC 0.79% of their portfolio | 73.5k $6.2m | Added +33.8k |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 73.0k $6.3m | New |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 72.8k $6.1m | Added +9.6k |
| Swiss National Bank 0.00% of their portfolio | 70.9k $6.0m | Added +5.4k |
| EVENTIDE ASSET MANAGEMENT, LLC 0.10% of their portfolio | 67.5k $5.7m | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 65.9k $5.5m | Reduced -3.4k |
| Qube Research & Technologies Ltd 0.02% of their portfolio | 64.4k $5.4m | Added +1.7k |
| Global IMC LLC 1.52% of their portfolio | 61.7k $5.2m | Reduced -8.0k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.02% of their portfolio | 61.7k $5.2m | Reduced -67.9k |
| Calamos Advisors LLC 0.03% of their portfolio | 61.3k $5.2m | Added +4.6k |
| OSAIC HOLDINGS, INC. 0.01% of their portfolio | 60.9k $5.1m | Added +14.0k |
| ESSEX INVESTMENT MANAGEMENT CO LLC 0.70% of their portfolio | 59.8k $5.0m | Reduced -10.8k |
| Cubist Systematic Strategies, LLC 0.06% of their portfolio | 59.5k $5.0m | Added +1.3k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 45.5k $3.8m | Added +3.0k |
| OSTERWEIS CAPITAL MANAGEMENT INC 0.25% of their portfolio | 44.2k $3.7m | New |
| Informed Momentum Co LLC 0.65% of their portfolio | 42.1k $3.5m | Reduced -6.2k |
| AXIOM INVESTORS LLC /DE 0.05% of their portfolio | 41.4k $3.5m | Added +23.5k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 41.2k $3.1m | Unchanged |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 39.9k $3.4m | Added +27.3k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 39.6k $3.3m | Added +8.8k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 39.2k $3.3m | Added +1.2k |
| ALGERT GLOBAL LLC 0.14% of their portfolio | 39.0k $3.3m | Added +21.9k |
| Penserra Capital Management LLC 0.06% of their portfolio | 38.8k $3.3m | New |
| Jefferies Financial Group Inc. 0.07% of their portfolio | 38.8k $3.3m | New |
| Connor, Clark & Lunn Investment Management Ltd. 0.02% of their portfolio | 37.8k $3.2m | Added +9.7k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 37.5k $3.1m | Added +5.8k |
| Legato Capital Management LLC 0.42% of their portfolio | 37.3k $3.1m | Added +4.3k |
| CIBC Private Wealth Group LLC 0.00% of their portfolio | 35.2k $3.0m | New |
| NATIXIS 0.02% of their portfolio | 34.5k $2.9m | Reduced -196 |
| Lisanti Capital Growth, LLC 0.40% of their portfolio | 34.5k $2.9m | Reduced -52.7k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 33.7k $2.8m | Added +12.6k |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 33.0k $2.8m | Reduced -3.0k |
| Jump Financial, LLC 0.09% of their portfolio | 30.2k $2.5m | Reduced -5.0k |
| Legal & General Group Plc 0.00% of their portfolio | 29.8k $2.5m | Added +15.1k |
| Mariner, LLC 0.01% of their portfolio | 29.1k $2.4m | Reduced -2.9k |
| Moody Aldrich Partners LLC 0.45% of their portfolio | 27.9k $2.3m | Reduced -141 |
| Squarepoint Ops LLC 0.01% of their portfolio | 27.2k $2.3m | Added +18.4k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 26.7k $2.2m | Reduced -1.3k |
| BANK OF HAWAII 0.12% of their portfolio | 25.2k $2.1m | Added +13.5k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 25.0k $2.1m | Added +15.1k |
| Quantbot Technologies LP 0.13% of their portfolio | 24.0k $2.0m | Added +11.8k |