$TLSI
TriSalus Life Sciences, Inc. Common Stock
XNAS•Health Care•Surgical & Medical Instruments & Apparatus
Why is TLSI up today? It is at $5.27 (+0.76%), and our scanner flagged it 4 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment TLSI spikes, and full due diligence on TLSI — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $5.27
- Change today
- +0.76%
- Previous close
- $5.23
- 52-week range
- $2.20 – $7.95
- Market cap
- $324M
- Institutional own.
- 38.01%
- Total held
- 55.3%
- Tradeable float
- 27.5M 45% of shares · after 17% insiders + 38% institutions
- Short interest
- 3.8M ▲ +6% vs prior · as of 2026-07-31
- Short % of float
- 13.7%
- Days to cover
- 22.1d
- Avg daily volume
- 244K
- Sector
- Health Care
- Industry
- Surgical & Medical Instruments & Apparatus
- Exchange
- XNAS
- 5m
- 9.6x
- 15m
- 2.8x
- 1h
- 1.0x
- 1D
- --
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Why is $TLSI up today?
Here is the latest on TLSI from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for TLSI today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
Analyst data via Nasdaq. Not investment advice.
Insiders
Insiders buying6 open-market buys3 buys, 1 sells last 3 months (27/16 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Patience David Officer | Sold (automatic/other) | -15K 0.02% of company | sold 5.3% | 261K | $65K at $4.46 | Jul 1, 26 |
Marshak Richard Officer | Acquired (grant/award) | +561 | added 0.4% | 128K | $2K at $3.87 | Jun 30, 26 |
Szela Mary T Officer | Acquired (grant/award) | +4K | added 0.4% | 1.08M | $15K at $3.87 | Jun 30, 26 |
Marshall Richard Henry Officer | Acquired (grant/award) | +60K 0.10% of company | added 100% | 90K | n/a | Jun 29, 26 |
Gordon Gary B. Director | Bought (open market) | +10K 0.02% of company | added 16% | 73K | $25K at $2.46 | May 15, 26 |
Patience David Officer | Bought (open market) | +7K 0.01% of company | added 2.6% | 276K | $17K at $2.43 | May 15, 26 |
Szela Mary T Officer | Bought (open market) | +40K 0.06% of company | added 3.9% | 1.07M | $103K at $2.59 | May 15, 26 |
Stansky Michael P Director | Bought (open market) | +410K 0.7% of company | added 49% | 1.24M | $1.0M at $2.50 | May 15, 26 |
Stansky Michael P Director | Bought (open market) | +200K 0.3% of company | added 100% | 400K | $500K at $2.50 | May 15, 26 |
Wahlstrom Mats Director | Bought (open market) | +60K 0.10% of company | added 69% | 148K | $152K at $2.53 | May 15, 26 |
Marshak Richard Officer | Sold (automatic/other) | -543 | sold 0.4% | 125K | $1K at $2.67 | May 15, 26 |
Valle William Director | Acquired (grant/award) | +53K 0.09% of company | added 100% | 83K | n/a | May 14, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
Dilution watch
UnavailableWe could not reach SEC EDGAR, so the dilution check did not run for $TLSI. This is not a clean result: there may be an offering, a registration or a shelf on file that we were unable to read. Check it yourself on SEC EDGAR before trading it.
$TLSI Sentiment
BullishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$TLSI Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.

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TLSI stock FAQ
Why is $TLSI up today?
Here is the latest on TLSI from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for TLSI today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
What is the TLSI stock price today?
TLSI last traded at $5.27, up 0.76% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live TLSI alerts?
The TLSI Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged TLSI 4 times in the last 30 days.
What exchange is TLSI on?
TLSI (TriSalus Life Sciences, Inc. Common Stock) trades on XNAS, with a market cap of about $324M in the SURGICAL & MEDICAL INSTRUMENTS & APPARATUS sector.
Is TLSI good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge TLSI for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.