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

Donnelley Financial Solutions, Inc.

DFIN · NYSE · CIK 0001669811 · Technology · Software—Application

INSIDER SIGNAL

No active buy signal

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

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

Last qualifying purchase2026-09-02 · BINZ JOSEPH LEO · $276.0K

WHY NO ACTIVE SIGNAL?

Purchase activityPresent
Recent buying2 qualifying line group(s)
Recent salesLow
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
BINZ JOSEPH LEODirector
○●●
Leib DanielChief Executive Officer
▼▼
Ellis Juliet SDirector
○
CRANDALL RICHARD LDirector
○
MARTIN LOIS MDirector
○
Aguilar Luis ADirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 6 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: BINZ JOSEPH LEO · $999.9K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-09-01–2026-09-02

Roles in the peak window: Director. 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: 2026-09-02 · BINZ JOSEPH LEO.

Recent Form 4 activity

3Purchases
7Sales
50Other Form 4 lines
23SEC filings · 365 days
BUYING3 qualifying P line(s) · 180 days
SELLING3 sale line(s) · context only
OTHER10 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
905,415
Previous report
1,032,691
Avg daily volume
246,075
Days to cover
3.7

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
2026-09-02BINZ JOSEPH LEOPurchase (P)Common Stock5,780USD 47.75USD 275,995SEC filing ↗
2026-09-01BINZ JOSEPH LEOPurchase (P)Common Stock15,000USD 48.26USD 723,950SEC filing ↗
2025-02-21GREENFIELD GARY GPurchase (P)Common Stock1,000USD 48.89USD 48,890SEC filing ↗
2022-05-11Simcoe Capital Management, LLCPurchase (P)Common Stock234,157USD 26.85USD 6,287,115SEC filing ↗
2022-05-11Jacobowitz JeffreyPurchase (P)Common Stock234,157USD 26.83USD 6,283,383SEC filing ↗
2022-05-11GREENFIELD GARY GPurchase (P)Common Stock1,820USD 27.32USD 49,722SEC filing ↗
2022-05-10Simcoe Capital Management, LLCPurchase (P)Common Stock185,361USD 26.79USD 4,965,821SEC filing ↗
2022-05-10Jacobowitz JeffreyPurchase (P)Common Stock185,361USD 26.78USD 4,963,343SEC filing ↗
2022-05-09Simcoe Capital Management, LLCPurchase (P)Common Stock75,207USD 25.43USD 1,912,514SEC filing ↗
2022-05-09Jacobowitz JeffreyPurchase (P)Common Stock75,207USD 25.43USD 1,912,514SEC filing ↗
2020-12-10Ellis Juliet SPurchase (P)Common Stock2,500USD 18.25USD 45,625SEC filing ↗
2020-03-25CRANDALL RICHARD LPurchase (P)Common Stock10,500USD 4.85USD 50,925SEC filing ↗
2020-03-11Gardella David APurchase (P)Common Stock5,600USD 7.03USD 39,368SEC filing ↗
2020-03-05MARTIN LOIS MPurchase (P)Common Stock5,000USD 8.26USD 41,300SEC filing ↗
2020-03-04Drucker CharlesPurchase (P)Common Stock15,000USD 8.62USD 129,300SEC filing ↗

Form 4 evidence

60 transaction lines in the latest 365-day window; 559 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-15Clay CraigGift (G)Common Stock4,364USD 0.00USD 0SEC filing ↗
2026-09-03Williams Robert KirkSale (S)Common Stock16,450USD 48.77USD 802,266SEC filing ↗
2026-09-02BINZ JOSEPH LEOPurchase (P)Common Stock5,780USD 47.75USD 275,995SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-15Clay CraigGift (G)Common Stock4,364USD 0.00USD 0SEC filing ↗
2026-09-03Williams Robert KirkSale (S)Common Stock16,450USD 48.77USD 802,266SEC filing ↗
2026-09-02BINZ JOSEPH LEOPurchase (P)Common Stock5,780USD 47.75USD 275,995SEC filing ↗
2026-09-01BINZ JOSEPH LEOPurchase (P)Common Stock15,000USD 48.26USD 723,950SEC filing ↗
2026-08-19Leib DanielSale (S)Common Stock9,787USD 50.00USD 489,350SEC filing ↗
2026-08-17Trzcinski Leah MarieTax withholding (F)Common Stock1,234USD 47.72USD 58,886SEC filing ↗
2026-08-14Leib DanielSale (S)Common Stock213USD 50.00USD 10,650SEC filing ↗
2026-07-01BINZ JOSEPH LEOAward / grant (A)Common Stock3,924USD —USD —SEC filing ↗
2026-05-13Sayed AymanAward / grant (A)Common Stock4,265USD —USD —SEC filing ↗
2026-05-13Pattabhiram ChandarAward / grant (A)Common Stock4,265USD —USD —SEC filing ↗
2026-05-13MARTIN LOIS MAward / grant (A)Common Stock4,265USD —USD —SEC filing ↗
2026-05-13GREENFIELD GARY GAward / grant (A)Common Stock4,265USD —USD —SEC filing ↗
2026-05-13Ellis Juliet SAward / grant (A)Common Stock4,265USD —USD —SEC filing ↗
2026-05-13CRANDALL RICHARD LAward / grant (A)Common Stock5,864USD —USD —SEC filing ↗
2026-05-13Aguilar Luis AAward / grant (A)Common Stock4,265USD —USD —SEC filing ↗
2026-03-06Johnson Eric JSale (S)Common Stock20,280USD 50.16USD 1,017,245SEC filing ↗
2026-03-04Williams Robert KirkSale (S)Common Stock7,684USD 52.03USD 399,799SEC filing ↗
2026-03-04Williams Robert KirkTax withholding (F)Common Stock954USD 52.97USD 50,533SEC filing ↗
2026-03-04Turner KamiTax withholding (F)Common Stock269USD 52.97USD 14,249SEC filing ↗
2026-03-04Trzcinski Leah MarieTax withholding (F)Common Stock406USD 52.97USD 21,506SEC filing ↗
2026-03-04Leib DanielTax withholding (F)Common Stock4,600USD 52.97USD 243,662SEC filing ↗
2026-03-04Johnson Eric JTax withholding (F)Common Stock1,393USD 52.97USD 73,787SEC filing ↗
2026-03-04Gardella David ATax withholding (F)Common Stock1,840USD 52.97USD 97,465SEC filing ↗
2026-03-04Clay CraigTax withholding (F)Common Stock2,097USD 52.97USD 111,078SEC filing ↗
2026-03-03Williams Robert KirkSale (S)Common Stock4,237USD 52.29USD 221,553SEC filing ↗
2026-03-03Williams Robert KirkTax withholding (F)Common Stock9,885USD 51.77USD 511,746SEC filing ↗
2026-03-03Williams Robert KirkAward / grant (A)Common Stock24,748USD —USD —SEC filing ↗
2026-03-03Turner KamiTax withholding (F)Common Stock3,548USD 51.77USD 183,680SEC filing ↗
2026-03-03Turner KamiAward / grant (A)Common Stock6,184USD —USD —SEC filing ↗
2026-03-03Trzcinski Leah MarieTax withholding (F)Common Stock805USD 51.77USD 41,675SEC 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 · —
TickerDFIN
CIK0001669811
SectorTechnology
IndustrySoftware—Application Yahoo Finance
SEC SIC7380 Services-Miscellaneous Business Services
ExchangeNYSE

Data coverage

Local Form 4 history559 transaction lines from 2020-02-27 to 2026-09-15
22 P purchase lines · 197 S sale lines · 340 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.