Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

TriSalus Life Sciences, Inc.

TLSI · Nasdaq · CIK 0001826667 · Healthcare · Medical Devices

INSIDER SIGNAL

78.2 / 100

5 buyers · 6 purchase transaction lines · $1.8M gross purchase

WHY THIS SIGNAL?

Buyer breadthStrong
Purchase sizeModerate
RoleModerate
RecencyLow
ConvictionStrong
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+35.0 / 35
Purchase size+19.5 / 25
Role+13.0 / 20
Recency+0.7 / 10
Conviction+10.0 / 10

What is holding the score back?

  • ⚠ Role scores low · most senior buyer: CEO and President (CEO, chair and 10% owners score lowest)
  • ⚠ Purchase activity is becoming less recent
  • ✓ Cluster breadth is broad · 4+ insiders

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Marshak RichardChief Commercial Officer
▼○▼
Szela Mary TCEO and President
●○○
Wahlstrom MatsDirector
○●
Stansky Michael PDirector
○●
Patience DavidChief Financial Officer
●○
Gordon Gary B.Director
○●
● Purchase▼ Sale○ Other

Showing the six most active owners; 6 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS5
PURCHASE CONCENTRATION84%Largest buyer: Stansky Michael P · $1.5M
CLUSTER BUYING · 15D5 insidersPeak activity: 2026-05-15–2026-05-15

Roles in the peak window: CEO and President, Chief Financial Officer, Director. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

78.2 / 100

Latest recorded score

↓ -0.1 ptsversus the previous recorded snapshot
  1. 78.4
  2. 78.4
  3. 78.4
  4. 78.3
  5. 78.2

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

12Purchases
18Sales
25Other Form 4 lines
38SEC filings · 365 days
BUYING6 qualifying P line(s) · 180 days
SELLING4 sale line(s) · context only
OTHER16 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot detected in parsed evidence

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-13.6%
3M
-4.0%
6M
-3.8%
12M
-16.3%

Volatility & liquidity

Volatility
72.9%
Beta
—
Avg daily value
USD 1.1M

Valuation

Market cap
USD 250.0M
P/E
—

Fundamentals

Profit margin
-86.9%
ROE
—
Industry
Medical Devices

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, Profit margin · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-08-04 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
3,346,635
Previous report
3,345,269
Avg daily volume
759,590
Days to cover
4.4

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-05-15Wahlstrom MatsPurchase (P)Common Stock60,000USD 2.53USD 151,800SEC filing ↗
2026-05-15Szela Mary TPurchase (P)Common Stock39,682USD 2.59USD 102,776SEC filing ↗
2026-05-15Stansky Michael PPurchase (P)Common Stock610,000USD 2.50USD 1,525,000SEC filing ↗
2026-05-15Patience DavidPurchase (P)Common Stock7,100USD 2.43USD 17,253SEC filing ↗
2026-05-15Gordon Gary B.Purchase (P)Common Stock10,000USD 2.46USD 24,600SEC filing ↗
2026-02-23Valle WilliamPurchase (P)Common Stock30,487USD 4.10USD 124,997SEC filing ↗
2026-02-23Szela Mary TPurchase (P)Common Stock30,487USD 4.10USD 124,997SEC filing ↗
2026-02-23Stansky Michael PPurchase (P)Common Stock361,098USD 4.10USD 1,480,502SEC filing ↗
2026-02-23Patience DavidPurchase (P)Common Stock3,657USD 4.10USD 14,994SEC filing ↗
2026-02-23Gordon Gary B.Purchase (P)Common Stock9,756USD 4.10USD 40,000SEC filing ↗
2025-02-05Young James EmmettPurchase (P)Common Stock6,000USD 5.65USD 33,900SEC filing ↗
2025-01-30Szela Mary TPurchase (P)Common Stock5,010USD 5.28USD 26,453SEC filing ↗
2025-01-29Szela Mary TPurchase (P)Common Stock5,030USD 5.03USD 25,301SEC filing ↗
2025-01-28Szela Mary TPurchase (P)Common Stock4,716USD 5.12USD 24,146SEC filing ↗
2025-01-28Murphy SeanPurchase (P)Common Stock15,000USD 5.17USD 77,550SEC filing ↗

Form 4 evidence

55 transaction lines in the latest 365-day window; 129 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-05Szela Mary TTax withholding (F)Common Stock2,693USD 4.38USD 11,795SEC filing ↗
2026-10-05Stevens JenniferSale (S)Common Stock316USD 4.39USD 1,387SEC filing ↗
2026-10-05Marshak RichardSale (S)Common Stock325USD 4.39USD 1,427SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-05Szela Mary TTax withholding (F)Common Stock2,693USD 4.38USD 11,795SEC filing ↗
2026-10-05Stevens JenniferSale (S)Common Stock316USD 4.39USD 1,387SEC filing ↗
2026-10-05Marshak RichardSale (S)Common Stock325USD 4.39USD 1,427SEC filing ↗
2026-10-05Cox Bryan F.Sale (S)Common Stock296USD 4.39USD 1,299SEC filing ↗
2026-07-01Patience DavidTax withholding (F)Common Stock14,650USD 4.46USD 65,339SEC filing ↗
2026-06-30Szela Mary TAward / grant (A)Common Stock3,990USD 3.87USD 15,441SEC filing ↗
2026-06-30Marshak RichardAward / grant (A)Common Stock561USD 3.87USD 2,171SEC filing ↗
2026-06-29Marshall Richard HenryAward / grant (A)Common Stock60,000USD 0.00USD 0SEC filing ↗
2026-05-15Marshak RichardSale (S)Common Stock543USD 2.67USD 1,450SEC filing ↗
2026-05-15Wahlstrom MatsPurchase (P)Common Stock60,000USD 2.53USD 151,800SEC filing ↗
2026-05-15Szela Mary TPurchase (P)Common Stock39,682USD 2.59USD 102,776SEC filing ↗
2026-05-15Stansky Michael PPurchase (P)Common Stock610,000USD 2.50USD 1,525,000SEC filing ↗
2026-05-15Patience DavidPurchase (P)Common Stock7,100USD 2.43USD 17,253SEC filing ↗
2026-05-15Gordon Gary B.Purchase (P)Common Stock10,000USD 2.46USD 24,600SEC filing ↗
2026-05-14Wahlstrom MatsAward / grant (A)Common Stock71,828USD 0.00USD 0SEC filing ↗
2026-05-14Valle WilliamAward / grant (A)Common Stock52,754USD 0.00USD 0SEC filing ↗
2026-05-14Stansky Michael PAward / grant (A)Common Stock43,590USD 0.00USD 0SEC filing ↗
2026-05-14MATLIN DAVID JAward / grant (A)Common Stock51,266USD 0.00USD 0SEC filing ↗
2026-05-14HICKS KERRY RAward / grant (A)Common Stock28,201USD 0.00USD 0SEC filing ↗
2026-05-14Gordon Gary B.Award / grant (A)Common Stock52,754USD 0.00USD 0SEC filing ↗
2026-03-17Szela Mary TSale (S)Common Stock15,944USD 3.85USD 61,384SEC filing ↗
2026-03-16Stevens JenniferSale (S)Common Stock774USD 4.12USD 3,189SEC filing ↗
2026-03-16Marshak RichardSale (S)Common Stock419USD 4.12USD 1,726SEC filing ↗
2026-03-16Devlin JodiSale (S)Common Stock273USD 4.12USD 1,125SEC filing ↗
2026-03-16Cox Bryan F.Sale (S)Common Stock579USD 4.12USD 2,385SEC filing ↗
2026-03-12Stevens JenniferSale (S)Common Stock1,552USD 4.09USD 6,348SEC filing ↗
2026-03-12Marshak RichardSale (S)Common Stock1,589USD 4.09USD 6,499SEC filing ↗
2026-03-12Devlin JodiSale (S)Common Stock1,772USD 4.09USD 7,247SEC filing ↗
2026-03-12Cox Bryan F.Sale (S)Common Stock1,467USD 4.09USD 6,000SEC filing ↗
2026-03-11Szela Mary TSale (S)Common Stock4,358USD 4.13USD 17,999SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerTLSI
CIK0001826667
SectorHealthcare
IndustryMedical Devices Yahoo Finance
SEC SIC3841 Surgical & Medical Instruments & Apparatus
ExchangeNasdaq

Data coverage

Local Form 4 history129 transaction lines from 2023-06-12 to 2026-10-05
28 P purchase lines · 25 S sale lines · 76 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.