Matthew O'Brien
Stock Analyst at Piper Sandler
(0.26)
# 4,503
Out of 4,703 analysts
1279
Total ratings
41%
Success rate
-3.4%
Average return
Main Sectors:
Stocks Rated by Matthew O'Brien
| Stock | Action | Price Target | Current | Upside | Ratings | Updated | |
|---|---|---|---|---|---|---|---|
| TMDX TransMedics Group | Reiterated: Buy | $100 → $90 | $89.98 | +0.02% | 41 | Sep 2, 2026 | |
| ATRC AtriCure | Rated: Buy | $50 → $60 | $51.52 | +16.46% | 43 | Aug 27, 2026 | |
| MDT Medtronic | Maintained: Hold | $85 | $94.17 | -9.74% | 62 | Aug 14, 2026 | |
| HTFL HeartFlow | Reiterated: Buy | $38 → $45 | $48.91 | -7.99% | 5 | Aug 14, 2026 | |
| TELA TELA Bio | Maintained: Hold | $1 | $0.8215 | +21.73% | 27 | Aug 11, 2026 | |
| OBIO Orchestra BioMed Holdings | Reiterated: Buy | $9 → $10 | $5.08 | +96.85% | 10 | Aug 11, 2026 | |
| GMED Globus Medical | Maintained: Buy | $100 | $78.29 | +27.73% | 56 | Aug 7, 2026 | |
| TNDM Tandem Diabetes Care | Reiterated: Buy | $33 | $19.90 | +65.83% | 35 | Aug 7, 2026 | |
| CVRX CVRx, Inc. | Downgraded: Hold | $12 → $4 | $3.05 | +31.15% | 24 | Aug 7, 2026 | |
| SI Shoulder Innovations | Reiterated: Buy | $19 → $25 | $20.32 | +23.03% | 5 | Aug 7, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Buy | $18 | $15.60 | +15.38% | 6 | Aug 6, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Buy | $14 | $9.45 | +48.15% | 38 | Aug 5, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Buy | $22 → $25 | $22.41 | +11.56% | 30 | Aug 5, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $35 → $25 | $22.76 | +9.84% | 20 | Aug 5, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Buy | $25 | $18.50 | +35.14% | 7 | Aug 4, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Downgraded: Hold | $97 → $127 | $126.50 | +0.40% | 15 | Aug 3, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Buy | $88 → $95 | $87.90 | +8.08% | 67 | Jul 31, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $420 → $390 | $303.13 | +28.66% | 54 | Jul 31, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Hold | $39 → $45 | $49.32 | -8.76% | 42 | Jul 30, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Buy | $20 | $19.42 | +2.99% | 12 | Jul 30, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $30 | $25.54 | +17.46% | 7 | Jul 15, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $210 | $147.48 | +42.39% | 38 | Jun 15, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $90 → $65 | $47.80 | +35.98% | 61 | Jun 12, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Hold | $16 | $23.29 | -31.29% | 2 | Jun 4, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Initiated Coverage: Buy | $3 | $0.564 | +431.91% | 1 | Apr 14, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Downgraded: Hold | $330 → $374 | $322.17 | +16.09% | 18 | Jan 15, 2026 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Hold | n/a | $98.07 | - | 42 | Oct 13, 2025 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Hold | $3.5 | $8.35 | n/a | 24 | May 9, 2025 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Hold | $16 | $23.47 | n/a | 12 | May 8, 2025 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Downgraded: Hold | $245 → $140 | $138.36 | n/a | 26 | Feb 28, 2025 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Hold | $12 → $11 | $11.20 | n/a | 20 | Feb 14, 2025 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $140 → $180 | $177.47 | n/a | 62 | Jan 27, 2025 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Rated: Hold | $4.5 → $2 | $3.05 | n/a | 26 | Aug 9, 2024 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Hold | $3.5 → $3 | $0.6049 | n/a | 7 | Nov 10, 2023 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Hold | $55 → $44 | $16.72 | n/a | 38 | Jun 26, 2023 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $10 → $90 | $0.0002 | n/a | 15 | Nov 14, 2022 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $9 → $11 | $0.8369 | n/a | 7 | Nov 14, 2022 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $12 → $10 | $2.88 | n/a | 24 | Nov 9, 2021 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Hold | $82 | $25.83 | n/a | 16 | Sep 2, 2021 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $62 → $79 | $89.60 | n/a | 25 | Jul 30, 2021 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $70 | $21.87 | n/a | 14 | Jul 6, 2021 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Hold | $3.5 | $3.25 | n/a | 6 | Mar 23, 2021 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $370 → $435 | $69.59 | n/a | 30 | Feb 11, 2021 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Hold | $7 | $0.21 | n/a | 10 | Jan 27, 2021 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $4 → $7 | $0.000001 | n/a | 8 | Jan 12, 2021 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Buy | $70 → $73 | $81.92 | n/a | 38 | Jan 12, 2021 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $258 → $345 | $158.64 | n/a | 35 | Jul 23, 2020 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | $600 → $633 | $366.70 | n/a | 27 | Sep 25, 2019 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Buy | $10 → $3 | $6.98 | n/a | 3 | Jan 7, 2018 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Buy | $18 | $4.57 | n/a | 9 | Dec 13, 2017 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Hold | $90 → $96 | $5.42 | n/a | 8 | Nov 7, 2017 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Buy | $73 → $69 | $11.38 | n/a | 9 | Aug 9, 2017 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Reiterated: Hold | $65 → $70 | $228.35 | n/a | 8 | Aug 2, 2017 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Maintained: Buy | n/a | $0.375 | n/a | 2 | Aug 14, 2014 | |
| XXXX XXXXXXXXXXXXXXXX Upgrade | Downgraded: Hold | n/a | $10.18 | n/a | 2 | May 8, 2012 |
TransMedics Group
Sep 2, 2026
Reiterated: Buy
Price Target: $100 → $90
Current: $89.98
Upside: +0.02%
AtriCure
Aug 27, 2026
Rated: Buy
Price Target: $50 → $60
Current: $51.52
Upside: +16.46%
Medtronic
Aug 14, 2026
Maintained: Hold
Price Target: $85
Current: $94.17
Upside: -9.74%
HeartFlow
Aug 14, 2026
Reiterated: Buy
Price Target: $38 → $45
Current: $48.91
Upside: -7.99%
TELA Bio
Aug 11, 2026
Maintained: Hold
Price Target: $1
Current: $0.8215
Upside: +21.73%
Orchestra BioMed Holdings
Aug 11, 2026
Reiterated: Buy
Price Target: $9 → $10
Current: $5.08
Upside: +96.85%
Globus Medical
Aug 7, 2026
Maintained: Buy
Price Target: $100
Current: $78.29
Upside: +27.73%
Tandem Diabetes Care
Aug 7, 2026
Reiterated: Buy
Price Target: $33
Current: $19.90
Upside: +65.83%
CVRx, Inc.
Aug 7, 2026
Downgraded: Hold
Price Target: $12 → $4
Current: $3.05
Upside: +31.15%
Shoulder Innovations
Aug 7, 2026
Reiterated: Buy
Price Target: $19 → $25
Current: $20.32
Upside: +23.03%
Aug 6, 2026
Reiterated: Buy
Price Target: $18
Current: $15.60
Upside: +15.38%
Aug 5, 2026
Reiterated: Buy
Price Target: $14
Current: $9.45
Upside: +48.15%
Aug 5, 2026
Reiterated: Buy
Price Target: $22 → $25
Current: $22.41
Upside: +11.56%
Aug 5, 2026
Maintained: Buy
Price Target: $35 → $25
Current: $22.76
Upside: +9.84%
Aug 4, 2026
Reiterated: Buy
Price Target: $25
Current: $18.50
Upside: +35.14%
Aug 3, 2026
Downgraded: Hold
Price Target: $97 → $127
Current: $126.50
Upside: +0.40%
Jul 31, 2026
Reiterated: Buy
Price Target: $88 → $95
Current: $87.90
Upside: +8.08%
Jul 31, 2026
Maintained: Buy
Price Target: $420 → $390
Current: $303.13
Upside: +28.66%
Jul 30, 2026
Reiterated: Hold
Price Target: $39 → $45
Current: $49.32
Upside: -8.76%
Jul 30, 2026
Reiterated: Buy
Price Target: $20
Current: $19.42
Upside: +2.99%
Jul 15, 2026
Maintained: Buy
Price Target: $30
Current: $25.54
Upside: +17.46%
Jun 15, 2026
Maintained: Buy
Price Target: $210
Current: $147.48
Upside: +42.39%
Jun 12, 2026
Maintained: Buy
Price Target: $90 → $65
Current: $47.80
Upside: +35.98%
Jun 4, 2026
Reiterated: Hold
Price Target: $16
Current: $23.29
Upside: -31.29%
Apr 14, 2026
Initiated Coverage: Buy
Price Target: $3
Current: $0.564
Upside: +431.91%
Jan 15, 2026
Downgraded: Hold
Price Target: $330 → $374
Current: $322.17
Upside: +16.09%
Oct 13, 2025
Maintained: Hold
Price Target: n/a
Current: $98.07
Upside: -
May 9, 2025
Maintained: Hold
Price Target: $3.5
Current: $8.35
Upside: n/a
May 8, 2025
Maintained: Hold
Price Target: $16
Current: $23.47
Upside: n/a
Feb 28, 2025
Downgraded: Hold
Price Target: $245 → $140
Current: $138.36
Upside: n/a
Feb 14, 2025
Maintained: Hold
Price Target: $12 → $11
Current: $11.20
Upside: n/a
Jan 27, 2025
Maintained: Buy
Price Target: $140 → $180
Current: $177.47
Upside: n/a
Aug 9, 2024
Rated: Hold
Price Target: $4.5 → $2
Current: $3.05
Upside: n/a
Nov 10, 2023
Reiterated: Hold
Price Target: $3.5 → $3
Current: $0.6049
Upside: n/a
Jun 26, 2023
Maintained: Hold
Price Target: $55 → $44
Current: $16.72
Upside: n/a
Nov 14, 2022
Maintained: Buy
Price Target: $10 → $90
Current: $0.0002
Upside: n/a
Nov 14, 2022
Maintained: Buy
Price Target: $9 → $11
Current: $0.8369
Upside: n/a
Nov 9, 2021
Maintained: Buy
Price Target: $12 → $10
Current: $2.88
Upside: n/a
Sep 2, 2021
Maintained: Hold
Price Target: $82
Current: $25.83
Upside: n/a
Jul 30, 2021
Maintained: Buy
Price Target: $62 → $79
Current: $89.60
Upside: n/a
Jul 6, 2021
Maintained: Buy
Price Target: $70
Current: $21.87
Upside: n/a
Mar 23, 2021
Maintained: Hold
Price Target: $3.5
Current: $3.25
Upside: n/a
Feb 11, 2021
Maintained: Buy
Price Target: $370 → $435
Current: $69.59
Upside: n/a
Jan 27, 2021
Maintained: Hold
Price Target: $7
Current: $0.21
Upside: n/a
Jan 12, 2021
Maintained: Buy
Price Target: $4 → $7
Current: $0.000001
Upside: n/a
Jan 12, 2021
Reiterated: Buy
Price Target: $70 → $73
Current: $81.92
Upside: n/a
Jul 23, 2020
Maintained: Buy
Price Target: $258 → $345
Current: $158.64
Upside: n/a
Sep 25, 2019
Maintained: Buy
Price Target: $600 → $633
Current: $366.70
Upside: n/a
Jan 7, 2018
Reiterated: Buy
Price Target: $10 → $3
Current: $6.98
Upside: n/a
Dec 13, 2017
Reiterated: Buy
Price Target: $18
Current: $4.57
Upside: n/a
Nov 7, 2017
Reiterated: Hold
Price Target: $90 → $96
Current: $5.42
Upside: n/a
Aug 9, 2017
Reiterated: Buy
Price Target: $73 → $69
Current: $11.38
Upside: n/a
Aug 2, 2017
Reiterated: Hold
Price Target: $65 → $70
Current: $228.35
Upside: n/a
Aug 14, 2014
Maintained: Buy
Price Target: n/a
Current: $0.375
Upside: n/a
May 8, 2012
Downgraded: Hold
Price Target: n/a
Current: $10.18
Upside: n/a