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

DROPBOX, INC.

DBX · Nasdaq · CIK 0001467623 · Technology · Software—Infrastructure

INSIDER SIGNAL

No active buy signal

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

63 Form 4 transaction lines observed in the same window
35 sales · 28 option, withholding, award, gift or other lines

Last qualifying purchase2021-03-10 · MYLOD ROBERT J JR · $2.5M

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesHigh
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
Schubach Sarah ElizabethChief Accounting Officer
▼▼○▼▼○▼▼
Houston AndrewCo-CEO
○▼○▼○▼
Tennenbaum RossChief Financial Officer
○○▼
Yoon William TChief Legal Officer
○○▼
Dasdan AliChief Technology Officer
▼○▼
Alkarmi AshrafCo-CEO
○▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 4 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: 2021-03-10 · MYLOD ROBERT J JR.

Recent Form 4 activity

0Purchases
72Sales
52Other Form 4 lines
88SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING35 sale line(s) · context only
OTHER28 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
24,757,888
Previous report
22,421,302
Avg daily volume
5,532,612
Days to cover
4.5

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
2021-03-10MYLOD ROBERT J JRPurchase (P)Class A Common Stock100,000USD 24.59USD 2,459,000SEC filing ↗

Form 4 evidence

124 transaction lines in the latest 365-day window; 729 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-12Houston AndrewSale (S)Class A Common Stock29,500USD 35.09USD 1,035,235SEC filing ↗
2026-10-12Houston AndrewC (C)Class A Common Stock29,500USD 0.00USD 0SEC filing ↗
2026-10-01Houston AndrewSale (S)Class A Common Stock354,300USD 34.01USD 12,049,814SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-12Houston AndrewSale (S)Class A Common Stock29,500USD 35.09USD 1,035,235SEC filing ↗
2026-10-12Houston AndrewC (C)Class A Common Stock29,500USD 0.00USD 0SEC filing ↗
2026-10-01Houston AndrewSale (S)Class A Common Stock354,300USD 34.01USD 12,049,814SEC filing ↗
2026-10-01Houston AndrewC (C)Class A Common Stock354,300USD 0.00USD 0SEC filing ↗
2026-09-30Schubach Sarah ElizabethSale (S)Class A Common Stock2,025USD 32.54USD 65,894SEC filing ↗
2026-09-15Schubach Sarah ElizabethSale (S)Class A Common Stock2,025USD 36.78USD 74,480SEC filing ↗
2026-09-11Alkarmi AshrafSale (S)Class A Common Stock28,800USD 35.54USD 1,023,552SEC filing ↗
2026-09-10Tennenbaum RossSale (S)Class A Common Stock97,558USD 35.02USD 3,416,481SEC filing ↗
2026-09-10Houston AndrewSale (S)Class A Common Stock383,800USD 35.01USD 13,437,791SEC filing ↗
2026-09-10Houston AndrewC (C)Class A Common Stock383,800USD 0.00USD 0SEC filing ↗
2026-09-04Yoon William TSale (S)Class A Common Stock12,382USD 34.78USD 430,646SEC filing ↗
2026-09-04Campbell Lisa MSale (S)Class A Common Stock4,598USD 34.78USD 159,918SEC filing ↗
2026-09-01Yoon William TAward / grant (A)Class A Common Stock28,945USD 0.00USD 0SEC filing ↗
2026-09-01Torres Michael IvanAward / grant (A)Class A Common Stock842,316USD 0.00USD 0SEC filing ↗
2026-09-01Tennenbaum RossAward / grant (A)Class A Common Stock28,945USD 0.00USD 0SEC filing ↗
2026-09-01Schubach Sarah ElizabethAward / grant (A)Class A Common Stock21,709USD 0.00USD 0SEC filing ↗
2026-08-31Schubach Sarah ElizabethSale (S)Class A Common Stock1,631USD 35.50USD 57,900SEC filing ↗
2026-08-20Schubach Sarah ElizabethSale (S)Class A Common Stock1,631USD 34.01USD 55,470SEC filing ↗
2026-08-18Webster Eric TSale (S)Class A Common Stock15,830USD 34.09USD 539,645SEC filing ↗
2026-08-18Dasdan AliSale (S)Class A Common Stock11,332USD 34.13USD 386,761SEC filing ↗
2026-08-17Yoon William TTax withholding (F)Class A Common Stock16,833USD 34.42USD 579,392SEC filing ↗
2026-08-17Webster Eric TTax withholding (F)Class A Common Stock14,820USD 34.42USD 510,104SEC filing ↗
2026-08-17Tennenbaum RossTax withholding (F)Class A Common Stock20,326USD 34.42USD 699,621SEC filing ↗
2026-08-17Schubach Sarah ElizabethTax withholding (F)Class A Common Stock5,854USD 34.42USD 201,495SEC filing ↗
2026-08-17Dasdan AliTax withholding (F)Class A Common Stock19,255USD 34.42USD 662,757SEC filing ↗
2026-08-17Alkarmi AshrafTax withholding (F)Class A Common Stock47,865USD 34.42USD 1,647,513SEC filing ↗
2026-07-31Schubach Sarah ElizabethSale (S)Class A Common Stock1,632USD 31.61USD 51,588SEC filing ↗
2026-07-29Peacock KarenSale (S)Class A Common Stock2,000USD 33.00USD 66,000SEC filing ↗
2026-07-15Schubach Sarah ElizabethSale (S)Class A Common Stock1,306USD 30.13USD 39,350SEC filing ↗
2026-07-14Dasdan AliSale (S)Class A Common Stock12,972USD 30.00USD 389,160SEC 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 · —
TickerDBX
CIK0001467623
SectorTechnology
IndustrySoftware—Infrastructure Yahoo Finance
SEC SIC7372 Services-Prepackaged Software
ExchangeNasdaq

Data coverage

Local Form 4 history729 transaction lines from 2020-01-21 to 2026-10-12
1 P purchase lines · 395 S sale lines · 333 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.