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

Century Therapeutics, Inc.

IPSC · Nasdaq · CIK 0001850119 · Healthcare · Biotechnology

INSIDER SIGNAL

No active buy signal

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

17 Form 4 transaction lines observed in the same window
10 sales · 7 option, withholding, award, gift or other lines

Last qualifying purchase2025-12-22 · Cowan Chad · $49.4K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
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
Carr DouglasSVP Finance & Operations
▼▼▼▼▼▼
Pfeiffenberger BrentPresident and CEO
○○○○○○
Russotti GregorySee Remarks
▼▼▼▼
Cowan ChadChief Scientific Officer
○
● Purchase▼ Sale○ Other

—

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

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: 2025-12-22 · Cowan Chad.

Recent Form 4 activity

3Purchases
20Sales
18Other Form 4 lines
41SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING10 sale line(s) · context only
OTHER7 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

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

Shares short
29,218,775
Previous report
29,354,630
Avg daily volume
573,911
Days to cover
50.9

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
2025-12-22Cowan ChadPurchase (P)Common Stock58,060USD 0.85USD 49,351SEC filing ↗
2025-12-12Pfeiffenberger BrentPurchase (P)Common Stock52,000USD 0.58USD 30,160SEC filing ↗
2025-11-19Pfeiffenberger BrentPurchase (P)Common Stock35,000USD 0.50USD 17,500SEC filing ↗
2024-09-12Quimi DaphnePurchase (P)Common Stock5,000USD 1.53USD 7,650SEC filing ↗
2021-06-22Versant Vantage II GP, L.P.; Versant Vantage II GP-GP, LLC; Versant Vantage II, L.P.; Versant Venture Capital VI, L.P.; Versant Ventures VI GP, L.P.; Versant Ventures VI GP-GP, LLCPurchase (P)Common Stock100,000USD 20.00USD 2,000,000SEC filing ↗
2021-06-22BAYER AKTIENGESELLSCHAFT; Bayer World Investments B.V.Purchase (P)Common Stock750,000USD 20.00USD 15,000,000SEC filing ↗
2021-06-22Casdin EliPurchase (P)Common Stock750,000USD 20.00USD 15,000,000SEC filing ↗

Form 4 evidence

41 transaction lines in the latest 365-day window; 132 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-14Russotti GregorySale (S)Common Stock2,587USD 1.93USD 4,993SEC filing ↗
2026-09-14Carr DouglasSale (S)Common Stock1,658USD 1.93USD 3,200SEC filing ↗
2026-09-11Pfeiffenberger BrentTax withholding (F)Common Stock13,850USD 1.94USD 26,869SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-14Russotti GregorySale (S)Common Stock2,587USD 1.93USD 4,993SEC filing ↗
2026-09-14Carr DouglasSale (S)Common Stock1,658USD 1.93USD 3,200SEC filing ↗
2026-09-11Pfeiffenberger BrentTax withholding (F)Common Stock13,850USD 1.94USD 26,869SEC filing ↗
2026-09-08Russotti GregorySale (S)Common Stock534USD 2.05USD 1,095SEC filing ↗
2026-09-08Carr DouglasSale (S)Common Stock254USD 2.05USD 521SEC filing ↗
2026-09-04Pfeiffenberger BrentTax withholding (F)Common Stock463USD 2.11USD 977SEC filing ↗
2026-08-14Pfeiffenberger BrentTax withholding (F)Common Stock31,172USD 1.92USD 59,850SEC filing ↗
2026-08-03Carr DouglasSale (S)Common Stock275USD 1.98USD 544SEC filing ↗
2026-06-12Russotti GregorySale (S)Common Stock2,584USD 2.23USD 5,762SEC filing ↗
2026-06-12Carr DouglasSale (S)Common Stock1,654USD 2.23USD 3,688SEC filing ↗
2026-06-11Pfeiffenberger BrentTax withholding (F)Common Stock13,849USD 2.24USD 31,022SEC filing ↗
2026-06-11Cowan ChadTax withholding (F)Common Stock358USD 2.24USD 802SEC filing ↗
2026-06-08Russotti GregorySale (S)Common Stock524USD 2.11USD 1,106SEC filing ↗
2026-06-08Carr DouglasSale (S)Common Stock249USD 2.11USD 525SEC filing ↗
2026-06-05Pfeiffenberger BrentTax withholding (F)Common Stock463USD 2.13USD 986SEC filing ↗
2026-05-15Pfeiffenberger BrentTax withholding (F)Common Stock31,172USD 2.34USD 72,942SEC filing ↗
2026-05-04Carr DouglasSale (S)Common Stock264USD 2.34USD 618SEC filing ↗
2026-04-01Cowan ChadTax withholding (F)Common Stock1,365USD 2.19USD 2,989SEC filing ↗
2026-03-12Russotti GregorySale (S)Common Stock10,076USD 2.55USD 25,694SEC filing ↗
2026-03-12Carr DouglasSale (S)Common Stock7,043USD 2.55USD 17,960SEC filing ↗
2026-03-11Pfeiffenberger BrentTax withholding (F)Common Stock55,397USD 2.73USD 151,234SEC filing ↗
2026-03-11Cowan ChadTax withholding (F)Common Stock1,431USD 2.73USD 3,907SEC filing ↗
2026-03-09Russotti GregorySale (S)Common Stock479USD 2.54USD 1,217SEC filing ↗
2026-03-09Carr DouglasSale (S)Common Stock247USD 2.54USD 627SEC filing ↗
2026-03-06Pfeiffenberger BrentTax withholding (F)Common Stock463USD 2.56USD 1,185SEC filing ↗
2026-02-13Pfeiffenberger BrentTax withholding (F)Common Stock31,172USD 1.75USD 54,551SEC filing ↗
2026-02-03Carr DouglasSale (S)Common Stock323USD 1.82USD 588SEC filing ↗
2026-02-02Russotti GregoryAward / grant (A)Common Stock135,000USD 0.00USD 0SEC filing ↗
2026-02-02Pfeiffenberger BrentAward / grant (A)Common Stock475,000USD 0.00USD 0SEC filing ↗
2026-02-02Cowan ChadAward / grant (A)Common Stock135,000USD 0.00USD 0SEC 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 · —
TickerIPSC
CIK0001850119
SectorHealthcare
IndustryBiotechnology Yahoo Finance
SEC SIC2836 Biological Products, (No Diagnostic Substances)
ExchangeNasdaq

Data coverage

Local Form 4 history132 transaction lines from 2021-06-22 to 2026-09-14
7 P purchase lines · 63 S sale lines · 62 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.