Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-19 · Built: 2026-10-19 · 中文

← United States · Coverage record

US · SEC FORM 4

PULSE BIOSCIENCES, INC.

PLSE · Nasdaq · CIK 0001625101 · Healthcare · Medical Instruments & Supplies

INSIDER SIGNAL

72.5 / 100

3 buyers · 8 purchase transaction lines · $26.8M gross purchase

WHY THIS SIGNAL?

Buyer breadthModerate
Purchase sizeStrong
RoleModerate
RecencyLow
ConvictionStrong
Score anatomy

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

Cluster+21.0 / 35
Purchase size+24.0 / 25
Role+13.0 / 20
Recency+4.5 / 10
Conviction+10.0 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 3 insider(s), not 4+
  • ⚠ Role scores low · most senior buyer: Chief Executive Officer (CEO, chair and 10% owners score lowest)

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.

Purchase breadth & concentration

QUALIFYING BUYERS3
PURCHASE CONCENTRATION97%Largest buyer: DUGGAN ROBERT W · $26.0M
CLUSTER BUYING · 15D2 insidersPeak activity: 2026-05-11–2026-05-11

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

Insider activity timeline

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

AprMayJunJulAugSepOct
Teplitsky Liane RaeChief Operating Officer
●●●●
DUGGAN ROBERT WDirector,TenPercentOwner
●●
LAVIOLETTE PAUL AChief Executive Officer
●●
● Purchase▼ Sale○ Other

—

SIGNAL HISTORY

72.5 / 100

Latest recorded score

↓ -0.1 ptsversus the previous recorded snapshot
  1. 73.0
  2. 72.8
  3. 72.8
  4. 72.6
  5. 72.5

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

Recent Form 4 activity

8Purchases
7Sales
7Other Form 4 lines
9SEC filings · 365 days
BUYING8 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER0 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

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
-1.1%
3M
+107.8%
6M
+188.2%
12M
+169.9%

Volatility & liquidity

Volatility
78.2%
Beta
—
Avg daily value
USD 27.4M

Valuation

Market cap
USD 3.8B
P/E
—

Fundamentals

Profit margin
—
ROE
-90.2%
Industry
Medical Instruments & Supplies

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, ROE · 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: 2026-07-31 · Status: PASS

Short interest

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

Shares short
3,312,487
Previous report
3,139,674
Avg daily volume
590,533
Days to cover
5.6

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
2026-09-01Teplitsky Liane RaePurchase (P)Common Stock1,001USD 49.95USD 50,000SEC filing ↗
2026-08-31Teplitsky Liane RaePurchase (P)Common Stock1,024USD 48.80USD 49,971SEC filing ↗
2026-08-28Teplitsky Liane RaePurchase (P)Common Stock1,034USD 48.35USD 49,994SEC filing ↗
2026-08-26Teplitsky Liane RaePurchase (P)Common Stock1,036USD 48.24USD 49,977SEC filing ↗
2026-05-11DUGGAN ROBERT WPurchase (P)Common Stock660,233USD 19.69USD 12,999,988SEC filing ↗
2026-05-11LAVIOLETTE PAUL APurchase (P)Common Stock15,000USD 19.69USD 295,350SEC filing ↗
2026-05-11LAVIOLETTE PAUL APurchase (P)Common Stock15,000USD 19.69USD 295,350SEC filing ↗
2026-05-11DUGGAN ROBERT WPurchase (P)Common Stock660,233USD 19.69USD 12,999,988SEC filing ↗
2025-09-10DUGGAN ROBERT WPurchase (P)Common Stock34,659USD 14.66USD 508,101SEC filing ↗
2024-12-13DUGGAN ROBERT WPurchase (P)Common Stock55,256USD 17.18USD 949,298SEC filing ↗
2024-12-12DUGGAN ROBERT WPurchase (P)Common Stock45,404USD 17.13USD 777,771SEC filing ↗
2024-12-11DUGGAN ROBERT WPurchase (P)Common Stock56,054USD 17.35USD 972,344SEC filing ↗
2024-09-12DUGGAN ROBERT WPurchase (P)Common Stock145,140USD 14.41USD 2,091,467SEC filing ↗
2024-09-11DUGGAN ROBERT WPurchase (P)Common Stock12,800USD 14.77USD 189,056SEC filing ↗
2024-05-20Barrett Burke ThomasPurchase (P)Common Stock10,000USD 8.56USD 85,600SEC filing ↗

Form 4 evidence

22 transaction lines in the latest 365-day window; 156 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-01Teplitsky Liane RaePurchase (P)Common Stock1,001USD 49.95USD 50,000SEC filing ↗
2026-08-31Teplitsky Liane RaePurchase (P)Common Stock1,024USD 48.80USD 49,971SEC filing ↗
2026-08-28Teplitsky Liane RaePurchase (P)Common Stock1,034USD 48.35USD 49,994SEC filing ↗
Show recent Form 4 evidence (22 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-01Teplitsky Liane RaePurchase (P)Common Stock1,001USD 49.95USD 50,000SEC filing ↗
2026-08-31Teplitsky Liane RaePurchase (P)Common Stock1,024USD 48.80USD 49,971SEC filing ↗
2026-08-28Teplitsky Liane RaePurchase (P)Common Stock1,034USD 48.35USD 49,994SEC filing ↗
2026-08-26Teplitsky Liane RaePurchase (P)Common Stock1,036USD 48.24USD 49,977SEC filing ↗
2026-05-11DUGGAN ROBERT WPurchase (P)Common Stock660,233USD 19.69USD 12,999,988SEC filing ↗
2026-05-11LAVIOLETTE PAUL APurchase (P)Common Stock15,000USD 19.69USD 295,350SEC filing ↗
2026-05-11LAVIOLETTE PAUL APurchase (P)Common Stock15,000USD 19.69USD 295,350SEC filing ↗
2026-05-11DUGGAN ROBERT WPurchase (P)Common Stock660,233USD 19.69USD 12,999,988SEC filing ↗
2026-02-18Danahy Kevin PatrickSale (S)Common Stock5,000USD 23.64USD 118,200SEC filing ↗
2026-02-18Danahy Kevin PatrickOption exercise / conversion (M)Common Stock5,000USD 1.53USD 7,650SEC filing ↗
2026-02-17Danahy Kevin PatrickSale (S)Common Stock20,000USD 23.63USD 472,600SEC filing ↗
2026-02-17Danahy Kevin PatrickOption exercise / conversion (M)Common Stock20,000USD 1.53USD 30,600SEC filing ↗
2026-02-13Danahy Kevin PatrickSale (S)Common Stock20,000USD 23.53USD 470,600SEC filing ↗
2026-02-13Danahy Kevin PatrickOption exercise / conversion (M)Common Stock20,000USD 1.53USD 30,600SEC filing ↗
2026-02-12Danahy Kevin PatrickSale (S)Common Stock20,000USD 23.37USD 467,400SEC filing ↗
2026-02-12Danahy Kevin PatrickOption exercise / conversion (M)Common Stock20,000USD 1.53USD 30,600SEC filing ↗
2026-02-11Danahy Kevin PatrickSale (S)Common Stock20,000USD 25.20USD 504,000SEC filing ↗
2026-02-11Danahy Kevin PatrickOption exercise / conversion (M)Common Stock20,000USD 1.53USD 30,600SEC filing ↗
2026-02-10Danahy Kevin PatrickSale (S)Common Stock20,000USD 23.52USD 470,400SEC filing ↗
2026-02-10Danahy Kevin PatrickOption exercise / conversion (M)Common Stock20,000USD 1.53USD 30,600SEC filing ↗
2026-02-09Danahy Kevin PatrickSale (S)Common Stock20,000USD 21.45USD 429,000SEC filing ↗
2026-02-09Danahy Kevin PatrickOption exercise / conversion (M)Common Stock20,000USD 1.53USD 30,600SEC 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 date2026-10-19
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerPLSE
CIK0001625101
SectorHealthcare
IndustryMedical Instruments & Supplies Yahoo Finance
SEC SIC3841 Surgical & Medical Instruments & Apparatus
ExchangeNasdaq

Data coverage

Local Form 4 history156 transaction lines from 2020-06-15 to 2026-09-01
54 P purchase lines · 18 S sale lines · 84 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-19. Mapping status is an audit field and does not erase SEC filing evidence.