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

Phathom Pharmaceuticals, Inc.

PHAT · Nasdaq · CIK 0001783183 · Healthcare · Biotechnology

INSIDER SIGNAL

No active buy signal

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

12 Form 4 transaction lines observed in the same window
0 sales · 12 option, withholding, award, gift or other lines

Last qualifying purchase2025-05-21 · Topper James N · $14.6K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesNone
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
Parikh AsitDirector
○○○
Breedlove Robert CharlesPrincipal Accounting Officer
○○
Topper James NDirector,TenPercentOwner
○
Stenhouse MarkDirector
○
FIELDS HEIDIDirector
○
COLA MICHAEL FDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 3 additional owner(s) remain in Form 4 evidence.

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: 2025-05-21 · Topper James N.

Recent Form 4 activity

0Purchases
1Sales
35Other Form 4 lines
27SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER12 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
10,109,151
Previous report
10,157,209
Avg daily volume
1,373,184
Days to cover
7.4

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
2025-05-21Topper James NPurchase (P)Common Stock3,780USD 3.86USD 14,591SEC filing ↗
2025-05-14Topper James NPurchase (P)Common Stock6,300USD 3.32USD 20,916SEC filing ↗
2025-05-13Topper James NPurchase (P)Common Stock1,120USD 3.16USD 3,539SEC filing ↗
2025-05-12Topper James NPurchase (P)Common Stock12,601USD 3.04USD 38,307SEC filing ↗
2025-05-09Topper James NPurchase (P)Common Stock35,602USD 3.22USD 114,528SEC filing ↗
2025-05-07Parikh AsitPurchase (P)Common Stock5,000USD 2.40USD 12,000SEC filing ↗
2025-05-06Parikh AsitPurchase (P)Common Stock5,000USD 2.60USD 13,000SEC filing ↗
2025-03-13Parikh AsitPurchase (P)Common Stock10,000USD 4.42USD 44,200SEC filing ↗
2024-12-13Parikh AsitPurchase (P)Common Stock10,000USD 8.12USD 81,200SEC filing ↗
2024-12-13KARBE FRANKPurchase (P)Common Stock12,500USD 7.93USD 99,125SEC filing ↗
2023-11-08Parikh AsitPurchase (P)Common Stock2,500USD 7.80USD 19,500SEC filing ↗
2023-11-07Parikh AsitPurchase (P)Common Stock4,000USD 7.76USD 31,040SEC filing ↗
2023-11-06Parikh AsitPurchase (P)Common Stock1,000USD 8.04USD 8,040SEC filing ↗
2023-04-11Nabulsi AzmiPurchase (P)Common Stock10,000USD 8.26USD 82,600SEC filing ↗
2023-04-10Parikh AsitPurchase (P)Common Stock1,000USD 7.55USD 7,550SEC filing ↗

Form 4 evidence

36 transaction lines in the latest 365-day window; 284 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-06Narula SanjeevTax withholding (F)Common Stock13,485USD 6.78USD 91,428SEC filing ↗
2026-09-03Breedlove Robert CharlesTax withholding (F)Common Stock460USD 9.05USD 4,163SEC filing ↗
2026-07-14Breedlove Robert CharlesTax withholding (F)Common Stock1,555USD 11.04USD 17,167SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-06Narula SanjeevTax withholding (F)Common Stock13,485USD 6.78USD 91,428SEC filing ↗
2026-09-03Breedlove Robert CharlesTax withholding (F)Common Stock460USD 9.05USD 4,163SEC filing ↗
2026-07-14Breedlove Robert CharlesTax withholding (F)Common Stock1,555USD 11.04USD 17,167SEC filing ↗
2026-05-22Parikh AsitGift (G)Common Stock28,000USD 0.00USD 0SEC filing ↗
2026-05-20Parikh AsitOption exercise / conversion (M)Common Stock17,500USD 4.95USD 86,625SEC filing ↗
2026-05-19Topper James NAward / grant (A)Common Stock24,122USD 0.00USD 0SEC filing ↗
2026-05-19Stenhouse MarkAward / grant (A)Common Stock24,122USD 0.00USD 0SEC filing ↗
2026-05-19Schroeder Theodore RAward / grant (A)Common Stock24,122USD 0.00USD 0SEC filing ↗
2026-05-19Parikh AsitAward / grant (A)Common Stock24,122USD 0.00USD 0SEC filing ↗
2026-05-19KARBE FRANKAward / grant (A)Common Stock24,122USD 0.00USD 0SEC filing ↗
2026-05-19FIELDS HEIDIAward / grant (A)Common Stock24,122USD 0.00USD 0SEC filing ↗
2026-05-19COLA MICHAEL FAward / grant (A)Common Stock24,122USD 0.00USD 0SEC filing ↗
2026-03-10Parikh AsitGift (G)Common Stock40,000USD 0.00USD 0SEC filing ↗
2026-02-27Breedlove Robert CharlesTax withholding (F)Common Stock1,378USD 12.56USD 17,308SEC filing ↗
2026-02-27Breedlove Robert CharlesAward / grant (A)Common Stock15,790USD 0.00USD 0SEC filing ↗
2026-02-10Cook Anne MarieTax withholding (F)Common Stock1,535USD 12.82USD 19,679SEC filing ↗
2026-02-10Cook Anne MarieAward / grant (A)Common Stock3,461USD 0.00USD 0SEC filing ↗
2026-02-10Basta Steven LTax withholding (F)Common Stock6,277USD 12.82USD 80,471SEC filing ↗
2026-02-10Basta Steven LAward / grant (A)Common Stock12,362USD 0.00USD 0SEC filing ↗
2026-01-23Parikh AsitGift (G)Common Stock80,500USD 0.00USD 0SEC filing ↗
2026-01-21Breedlove Robert CharlesTax withholding (F)Common Stock776USD 13.61USD 10,561SEC filing ↗
2026-01-13Parikh AsitOption exercise / conversion (M)Common Stock8,750USD 10.30USD 90,125SEC filing ↗
2026-01-02Narula SanjeevAward / grant (A)Common Stock82,715USD 0.00USD 0SEC filing ↗
2026-01-02Cook Anne MarieAward / grant (A)Common Stock75,345USD 0.00USD 0SEC filing ↗
2026-01-02Basta Steven LAward / grant (A)Common Stock251,034USD 0.00USD 0SEC filing ↗
2025-12-19Parikh AsitOption exercise / conversion (M)Common Stock8,750USD 10.30USD 90,125SEC filing ↗
2025-12-18Breedlove Robert CharlesTax withholding (F)Common Stock230USD 16.28USD 3,744SEC filing ↗
2025-12-17Cook Anne MarieTax withholding (F)Common Stock7,703USD 15.36USD 118,318SEC filing ↗
2025-12-17Cook Anne MarieAward / grant (A)Common Stock17,370USD 0.00USD 0SEC filing ↗
2025-12-17Basta Steven LTax withholding (F)Common Stock31,502USD 15.36USD 483,871SEC 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 · —
TickerPHAT
CIK0001783183
SectorHealthcare
IndustryBiotechnology Yahoo Finance
SEC SIC2834 Pharmaceutical Preparations
ExchangeNasdaq

Data coverage

Local Form 4 history284 transaction lines from 2020-01-04 to 2026-10-06
26 P purchase lines · 166 S sale lines · 92 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.