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

Sensei Biotherapeutics, Inc.

SNSE · Nasdaq · CIK 0001829802 · Healthcare

INSIDER SIGNAL

No active buy signal

8 qualifying P purchase groups
in the current 180-day scoring window

31 Form 4 transaction lines observed in the same window
4 sales · 4 option, withholding, award, gift or other lines

Last qualifying purchase2026-07-01 · STEPHENSON BRIAN C · $117.5K

WHY NO ACTIVE SIGNAL?

Purchase activityPresent
Recent buying8 qualifying line group(s)
Recent salesModerate
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

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

AprMayJunJulAugSepOct
STEPHENSON BRIAN CChief Financial Officer
●●●●●●●
Parikh Anand KiranPresident and CEO
○○●
Hahn Stephen M.Director
○
Cambrian BioPharma IncTenPercentOwner
▼
Peyer JamesTenPercentOwner,Other
▼
● Purchase▼ Sale○ Other

—

Purchase breadth & concentration

QUALIFYING BUYERS2
PURCHASE CONCENTRATION95%Largest buyer: STEPHENSON BRIAN C · $1.1M
CLUSTER BUYING · 15D2 insidersPeak activity: 2026-06-22–2026-07-01

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

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-07-01 · STEPHENSON BRIAN C.

Recent Form 4 activity

31Purchases
34Sales
6Other Form 4 lines
14SEC filings · 365 days
BUYING23 qualifying P line(s) · 180 days
SELLING4 sale line(s) · context only
OTHER4 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 has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

The FINRA report lists no short interest for this ticker.

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
2026-07-01STEPHENSON BRIAN CPurchase (P)Common Stock5,000USD 23.50USD 117,492SEC filing ↗
2026-06-30STEPHENSON BRIAN CPurchase (P)Common Stock7,803USD 24.25USD 189,240SEC filing ↗
2026-06-29STEPHENSON BRIAN CPurchase (P)Common Stock831USD 23.34USD 19,396SEC filing ↗
2026-06-26STEPHENSON BRIAN CPurchase (P)Common Stock6,250USD 24.95USD 155,908SEC filing ↗
2026-06-24STEPHENSON BRIAN CPurchase (P)Common Stock9,391USD 26.13USD 245,360SEC filing ↗
2026-06-23STEPHENSON BRIAN CPurchase (P)Common Stock9,230USD 24.36USD 224,806SEC filing ↗
2026-06-22STEPHENSON BRIAN CPurchase (P)Common Stock8,183USD 22.13USD 181,115SEC filing ↗
2026-06-22Parikh Anand KiranPurchase (P)Common Stock2,806USD 19.76USD 55,447SEC filing ↗
2026-04-07ENGLANDER ISRAEL A; ICS OPPORTUNITIES II LLC; MILLENNIUM GROUP MANAGEMENT LLC; MILLENNIUM MANAGEMENT LLCPurchase (P)Common Stock1,108USD 33.38USD 36,985SEC filing ↗
2026-04-06ENGLANDER ISRAEL A; ICS OPPORTUNITIES II LLC; MILLENNIUM GROUP MANAGEMENT LLC; MILLENNIUM MANAGEMENT LLCPurchase (P)Common Stock1,104USD 31.02USD 34,246SEC filing ↗
2026-04-02ENGLANDER ISRAEL A; ICS OPPORTUNITIES II LLC; MILLENNIUM GROUP MANAGEMENT LLC; MILLENNIUM MANAGEMENT LLCPurchase (P)Common Stock2,003USD 35.01USD 70,132SEC filing ↗
2026-04-01ENGLANDER ISRAEL A; ICS OPPORTUNITIES II LLC; MILLENNIUM GROUP MANAGEMENT LLC; MILLENNIUM MANAGEMENT LLCPurchase (P)Common Stock6,175USD 34.49USD 212,999SEC filing ↗
2023-09-11Celebi JohnPurchase (P)Common Stock500USD 0.85USD 425SEC filing ↗
2023-02-23Angermayer Christian; Apeiron Investment Group Ltd.; Presight Co-Invest Management, L.L.C.; Presight Sensei Co-Invest Fund, L.P.Purchase (P)Common Stock2,200USD 1.61USD 3,542SEC filing ↗
2022-03-02Peyer JamesPurchase (P)Common Stock1,203USD 3.20USD 3,850SEC filing ↗

Form 4 evidence

71 transaction lines in the latest 365-day window; 263 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-07-01STEPHENSON BRIAN CPurchase (P)Common Stock5,000USD 23.50USD 117,492SEC filing ↗
2026-06-30STEPHENSON BRIAN CPurchase (P)Common Stock7,803USD 24.25USD 189,240SEC filing ↗
2026-06-29STEPHENSON BRIAN CPurchase (P)Common Stock831USD 23.34USD 19,396SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-07-01STEPHENSON BRIAN CPurchase (P)Common Stock5,000USD 23.50USD 117,492SEC filing ↗
2026-06-30STEPHENSON BRIAN CPurchase (P)Common Stock7,803USD 24.25USD 189,240SEC filing ↗
2026-06-29STEPHENSON BRIAN CPurchase (P)Common Stock831USD 23.34USD 19,396SEC filing ↗
2026-06-26STEPHENSON BRIAN CPurchase (P)Common Stock6,250USD 24.95USD 155,908SEC filing ↗
2026-06-24STEPHENSON BRIAN CPurchase (P)Common Stock9,391USD 26.13USD 245,360SEC filing ↗
2026-06-23STEPHENSON BRIAN CPurchase (P)Common Stock9,230USD 24.36USD 224,806SEC filing ↗
2026-06-22STEPHENSON BRIAN CPurchase (P)Common Stock8,183USD 22.13USD 181,115SEC filing ↗
2026-06-22Parikh Anand KiranPurchase (P)Common Stock2,806USD 19.76USD 55,447SEC filing ↗
2026-06-22Parikh Anand KiranOption exercise / conversion (M)Common Stock53,465USD 1.16USD 62,019SEC filing ↗
2026-06-15Parikh Anand KiranC (C)Common Stock761,428USD —USD —SEC filing ↗
2026-06-15Hahn Stephen M.C (C)Common Stock44,763USD —USD —SEC filing ↗
2026-06-01Peyer JamesSale (S)Common Stock25,000USD 20.02USD 500,543SEC filing ↗
2026-06-01Cambrian BioPharma IncSale (S)Common Stock25,000USD 20.02USD 500,543SEC filing ↗
2026-04-07ENGLANDER ISRAEL A; ICS OPPORTUNITIES II LLC; MILLENNIUM GROUP MANAGEMENT LLC; MILLENNIUM MANAGEMENT LLCSale (S)Common Stock8,151USD 31.01USD 252,752SEC filing ↗
2026-04-07ENGLANDER ISRAEL A; ICS OPPORTUNITIES II LLC; MILLENNIUM GROUP MANAGEMENT LLC; MILLENNIUM MANAGEMENT LLCPurchase (P)Common Stock1,108USD 33.38USD 36,985SEC filing ↗
2026-04-06ENGLANDER ISRAEL A; ICS OPPORTUNITIES II LLC; MILLENNIUM GROUP MANAGEMENT LLC; MILLENNIUM MANAGEMENT LLCSale (S)Common Stock1,259USD 31.05USD 39,096SEC filing ↗
2026-04-06ENGLANDER ISRAEL A; ICS OPPORTUNITIES II LLC; MILLENNIUM GROUP MANAGEMENT LLC; MILLENNIUM MANAGEMENT LLCPurchase (P)Common Stock1,104USD 31.02USD 34,246SEC filing ↗
2026-04-02ENGLANDER ISRAEL A; ICS OPPORTUNITIES II LLC; MILLENNIUM GROUP MANAGEMENT LLC; MILLENNIUM MANAGEMENT LLCSale (S)Common Stock7,666USD 32.12USD 246,219SEC filing ↗
2026-04-02ENGLANDER ISRAEL A; ICS OPPORTUNITIES II LLC; MILLENNIUM GROUP MANAGEMENT LLC; MILLENNIUM MANAGEMENT LLCPurchase (P)Common Stock2,003USD 35.01USD 70,132SEC filing ↗
2026-04-01ENGLANDER ISRAEL A; ICS OPPORTUNITIES II LLC; MILLENNIUM GROUP MANAGEMENT LLC; MILLENNIUM MANAGEMENT LLCSale (S)Common Stock1,150USD 31.65USD 36,397SEC filing ↗
2026-04-01ENGLANDER ISRAEL A; ICS OPPORTUNITIES II LLC; MILLENNIUM GROUP MANAGEMENT LLC; MILLENNIUM MANAGEMENT LLCPurchase (P)Common Stock6,175USD 34.49USD 212,999SEC filing ↗
2025-12-09Peyer JamesSale (S)Common Stock3,507USD 7.96USD 27,903SEC filing ↗
2025-12-09Peyer JamesOption exercise / conversion (M)Common Stock395USD 6.40USD 2,528SEC filing ↗
2025-12-09Cambrian BioPharma IncSale (S)Common Stock6,612USD 8.25USD 54,575SEC filing ↗
2025-12-09Cambrian BioPharma IncOption exercise / conversion (M)Common Stock395USD 6.40USD 2,528SEC filing ↗
2025-12-08Peyer JamesSale (S)Common Stock3,105USD 8.59USD 26,672SEC filing ↗
2025-12-05Peyer JamesSale (S)Common Stock16,295USD 11.50USD 187,390SEC filing ↗
2025-12-05Cambrian BioPharma IncSale (S)Common Stock16,295USD 11.50USD 187,390SEC filing ↗
2025-12-04Peyer JamesSale (S)Common Stock5,000USD 9.06USD 45,300SEC filing ↗
2025-12-04Cambrian BioPharma IncSale (S)Common Stock5,000USD 9.06USD 45,300SEC 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 · —
TickerSNSE
CIK0001829802
SectorHealthcare
Industry— Yahoo Finance
SEC SIC2834 Pharmaceutical Preparations
ExchangeNasdaq

Data coverage

Local Form 4 history263 transaction lines from 2021-02-08 to 2026-07-01
164 P purchase lines · 40 S sale lines · 59 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.