Quentin S. Blackford
Quentin S. Blackford's purchase track record
Quentin S. Blackford has only 1 open-market purchase with a full 6 months of price history after it -- too few to call a track record yet.
| Purchase | Stock | Amount | 3 months | 6 months | S&P 500, 6 mo. |
|---|---|---|---|---|---|
| 3/7/2024 | ATEC | $257K | -20.4% | -48.4% | +6.7% |
Computed by MarketWall from SEC Form 4 filings and daily closing prices (close on the purchase date to the close about 3 and 6 months later). Companies that have since delisted are not included. Past results, not investment advice.
Associated companies
Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
September 25, 2026
Alphatec Appoints Tommy Carls as EVP for Data Intelligence. Alphatec Holdings has named Tommy Carls as Executive Vice President of Data Intelligence and Strategy. This leadership addition focuses on the company's data capabilities and strategic direction. The stock is currently trading within its 52-week range, with analyst targets averaging $15.79.
Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 12, 2026
Axogen Receives New Analyst Coverage and Valuation Upside. Axogen has attracted new analyst coverage from Robinhood and B of A Securities, both issuing bullish notes and setting price targets around $52. A Yahoo analysis suggests the stock may be about 26% undervalued on cash‑flow grounds, while the company has fallen 22.6% in the past month. These developments highlight renewed investor interest and potential upside relative to recent price action.
Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 17, 2026
DexCom CONNECT study published in NEJM. The New England Journal of Medicine published the DexCom CONNECT study, which supports using continuous glucose monitoring for people with Type 2 diabetes who do not take insulin. This finding expands the potential user base for DexCom's devices beyond insulin-dependent patients. The stock recently showed pre-market activity, and analysts maintain an average target price of $96.46.
Transaction History
| IRTC | ▼ Sell | Open Market | 26,859 | $3.3M | 8/10/2026 | View on chart |
| IRTC | ▲ Buy | Grant | 48,534 | $0 | 8/7/2026 | View on chart |
| ATEC | ▲ Buy | Grant | 32,012 | $0 | 6/10/2026 | View on chart |
| IRTC | ▲ Buy | Grant | 178 | $17K | 5/29/2026 | View on chart |
| IRTC | ▼ Sell | Open Market | 4,347 | $558K | 3/2/2026 | View on chart |
| IRTC | ▼ Sell | Open Market | 4,043 | $519K | 3/2/2026 | View on chart |
| IRTC | ▼ Sell | Open Market | 5,423 | $697K | 3/2/2026 | View on chart |
| IRTC | ▲ Buy | Grant | 31,842 | $0 | 2/25/2026 | View on chart |
| IRTC | ▼ Sell | Open Market | 25,540 | $3.5M | 2/25/2026 | View on chart |
| IRTC | ▲ Buy | Grant | 46,687 | $0 | 2/24/2026 | View on chart |
| IRTC | ▼ Sell | Open Market | 14,059 | $2.6M | 11/3/2025 | View on chart |
| IRTC | ▼ Sell | Open Market | 1,600 | $259K | 8/5/2025 | View on chart |
| IRTC | ▼ Sell | Open Market | 1,514 | $247K | 8/5/2025 | View on chart |
| IRTC | ▼ Sell | Open Market | 9,775 | $1.6M | 8/5/2025 | View on chart |
| IRTC | ▼ Sell | Open Market | 8,726 | $1.4M | 8/5/2025 | View on chart |
| IRTC | ▼ Sell | Open Market | 3,174 | $520K | 8/5/2025 | View on chart |
| IRTC | ▼ Sell | Open Market | 306 | $50K | 8/5/2025 | View on chart |
| IRTC | ▼ Sell | Open Market | 4,905 | $788K | 8/5/2025 | View on chart |
| ATEC | ▲ Buy | Grant | 15,131 | $0 | 6/11/2025 | View on chart |
| IRTC | ▲ Buy | Grant | 297 | $21K | 5/30/2025 | View on chart |
| ATEC | ▼ Sell | Gift | 21,000 | $0 | 5/5/2025 | View on chart |
| IRTC | ▼ Sell | Open Market | 8,145 | $886K | 3/3/2025 | View on chart |
| IRTC | ▲ Buy | Grant | 38,599 | $0 | 2/26/2025 | View on chart |
| IRTC | ▼ Sell | Open Market | 22,252 | $2.5M | 2/26/2025 | View on chart |
| IRTC | ▲ Buy | Grant | 40,610 | $0 | 2/25/2025 | View on chart |
| ATEC | ▼ Sell | Gift | 15,114 | $0 | 11/21/2024 | View on chart |
| IRTC | ▼ Sell | Open Market | 16,145 | $1.2M | 11/4/2024 | View on chart |
| ATEC | ▲ Buy | Grant | 16,747 | $0 | 6/12/2024 | View on chart |
| IRTC | ▲ Buy | Grant | 280 | $21K | 5/31/2024 | View on chart |
| ATEC | ▲ Buy | Open Market | 20,000 | $257K | 3/7/2024 | View on chart |
| IRTC | ▼ Sell | Open Market | 4,221 | $469K | 3/4/2024 | View on chart |
| IRTC | ▼ Sell | Open Market | 24,701 | $3.0M | 2/29/2024 | View on chart |
| IRTC | ▲ Buy | Grant | 30,938 | $0 | 2/28/2024 | View on chart |
| IRTC | ▲ Buy | Grant | 45,268 | $0 | 2/27/2024 | View on chart |
| ATEC | ▲ Buy | Grant | 9,908 | $0 | 6/20/2023 | View on chart |
| IRTC | ▲ Buy | Grant | 9,755 | $998K | 6/6/2023 | View on chart |
| IRTC | ▲ Buy | Grant | 28,775 | $0 | 2/27/2023 | View on chart |
| IRTC | ▼ Sell | Open Market | 12,415 | $1.5M | 11/2/2022 | View on chart |
| IRTC | ▼ Sell | Open Market | 284 | $34K | 11/2/2022 | View on chart |
| ATEC | ▲ Buy | Grant | 18,546 | $0 | 6/15/2022 | View on chart |
| AXGN | ▲ Buy | Option Exercise | 3,036 | $0 | 3/30/2022 | View on chart |
| IRTC | ▲ Buy | Grant | 101,979 | $0 | 10/5/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 1,519 | $848K | 9/10/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 19 | $10K | 9/9/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 515 | $279K | 9/9/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 1,534 | $830K | 9/9/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 300 | $163K | 9/9/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 100 | $54K | 9/9/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 100 | $55K | 9/9/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 900 | $493K | 9/9/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 1,200 | $658K | 9/9/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 2,394 | $1.3M | 9/9/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 2,200 | $1.2M | 9/9/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 200 | $110K | 9/9/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 42 | $23K | 9/8/2021 | View on chart |
| DXCM | ▼ Sell | Open Market | 7,639 | $4.2M | 9/8/2021 | View on chart |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 10, 2026
iRhythm Reports Data Breach and Completes VitalConnect Acquisition
iRhythm disclosed unauthorized access to patient data, a significant security event for a healthcare company. The firm also completed the acquisition of VitalConnect to expand its cardiac monitoring platform across various care settings. Analyst views remain mixed, with Wells Fargo lowering its price target to $150 while Needham raised its target to $194.
iRhythm Reports Data Breach and Completes VitalConnect Acquisition. iRhythm disclosed unauthorized access to patient data, a significant security event for a healthcare company. The firm also completed the acquisition of VitalConnect to expand its cardiac monitoring platform across various care settings. Analyst views remain mixed, with Wells Fargo lowering its price target to $150 while Needham raised its target to $194.