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

FULLER H B CO

FUL · NYSE · CIK 0000039368 · Basic Materials · Specialty Chemicals

INSIDER SIGNAL

82.8 / 100

8 buyers · 10 purchase transaction lines · $1.1M gross purchase

WHY THIS SIGNAL?

Buyer breadthStrong
Purchase sizeModerate
RoleStrong
RecencyStrong
ConvictionModerate
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+35.0 / 35
Purchase size+14.8 / 25
Role+20.0 / 20
Recency+8.3 / 10
Conviction+4.7 / 10

What is holding the score back?

  • ⚠ Buying conviction is reduced by concurrent selling
  • ✓ Cluster breadth is broad · 4+ insiders
  • ✓ Role scores high · most senior buyer: Director
  • ✓ Recent activity · latest purchase 2026-10-07

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

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

AprMayJunJulAugSepOct
Ogunsanya Gregory O.Sr. VP, GC and Corp Secretary
○○○
Zaheer SrilataDirector
●●
Weaver Nathan D.Exec VP, Business Transform.
○▼
Martin Celine ChristineDirector
●
Happe Michael JDirector
●
Lauber Charles TDirector
●
● Purchase▼ Sale○ Other

Showing the six most active owners; 5 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS8
PURCHASE CONCENTRATION45%Largest buyer: BAILLY R JEFFREY · $500.0K
CLUSTER BUYING · 15D8 insidersPeak activity: 2026-09-28–2026-10-07

Roles in the peak window: Director. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

82.8 / 100

Latest recorded score

↓ -0.4 ptsversus the previous recorded snapshot
  1. 84.4
  2. 84.2
  3. 83.4
  4. 83.2
  5. 82.8

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

12Purchases
3Sales
103Other Form 4 lines
48SEC filings · 365 days
BUYING10 qualifying P line(s) · 180 days
SELLING1 sale line(s) · context only
OTHER8 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot detected in parsed evidence

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 provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-4.4%
3M
-11.9%
6M
-23.6%
12M
-15.2%

Volatility & liquidity

Volatility
33.7%
Beta
—
Avg daily value
USD 38.3M

Valuation

Market cap
USD 2.7B
P/E
17.5×

Fundamentals

Profit margin
4.4%
ROE
7.6%
Industry
Specialty Chemicals

Market data

Price data up to: 2026-10-12 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, P/E, Profit margin, ROE · Fiscal year ended: 2025-11-29 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-09-18 · Status: PASS

Short interest

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

Shares short
2,869,611
Previous report
2,926,989
Avg daily volume
1,241,282
Days to cover
2.3

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
2026-10-07BAILLY R JEFFREYPurchase (P)Common Stock10,000USD 50.00USD 500,000SEC filing ↗
2026-09-30Martin Celine ChristinePurchase (P)Common Stock465USD 49.50USD 22,998SEC filing ↗
2026-09-29Happe Michael JPurchase (P)Common Stock2,000USD 49.62USD 99,250SEC filing ↗
2026-09-29Zaheer SrilataPurchase (P)Common Stock40USD 49.97USD 1,999SEC filing ↗
2026-09-29Lauber Charles TPurchase (P)Common Stock2,005USD 49.87USD 99,989SEC filing ↗
2026-09-28Zaheer SrilataPurchase (P)Common Stock2,000USD 49.06USD 98,120SEC filing ↗
2026-09-28Rasmussen Trangsrud Teresa JPurchase (P)Common Stock2,042USD 48.96USD 99,986SEC filing ↗
2026-09-28HANDLEY THOMAS WPurchase (P)Common Stock2,000USD 49.41USD 98,820SEC filing ↗
2026-09-28FLORNESS DANIEL LPurchase (P)Common Stock2,030USD 49.34USD 100,160SEC filing ↗
2026-04-17Rasmussen Trangsrud Teresa JPurchase (P)Common Stock1,000USD 65.83USD 65,830SEC filing ↗
2026-04-07Mastin Celeste BeeksPurchase (P)Common Stock5,170USD 57.08USD 295,104SEC filing ↗
2025-09-26East James J.Purchase (P)Common Stock31USD 58.62USD 1,817SEC filing ↗
2025-04-01Mastin Celeste BeeksPurchase (P)Common Stock3,500USD 56.66USD 198,310SEC filing ↗
2022-07-05Rasmussen Trangsrud Teresa JPurchase (P)Common Stock1,000USD 58.20USD 58,200SEC filing ↗

Form 4 evidence

118 transaction lines in the latest 365-day window; 815 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-07BAILLY R JEFFREYPurchase (P)Common Stock10,000USD 50.00USD 500,000SEC filing ↗
2026-10-04Ogunsanya Gregory O.Option exercise / conversion (M)Common Stock655USD 50.20USD 32,881SEC filing ↗
2026-10-04Ogunsanya Gregory O.Tax withholding (F)Common Stock202USD 50.20USD 10,140SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-07BAILLY R JEFFREYPurchase (P)Common Stock10,000USD 50.00USD 500,000SEC filing ↗
2026-10-04Ogunsanya Gregory O.Option exercise / conversion (M)Common Stock655USD 50.20USD 32,881SEC filing ↗
2026-10-04Ogunsanya Gregory O.Tax withholding (F)Common Stock202USD 50.20USD 10,140SEC filing ↗
2026-10-04Ogunsanya Gregory O.Award / grant (A)Common Stock19USD 50.20USD 954SEC filing ↗
2026-09-30Martin Celine ChristinePurchase (P)Common Stock465USD 49.50USD 22,998SEC filing ↗
2026-09-29Happe Michael JPurchase (P)Common Stock2,000USD 49.62USD 99,250SEC filing ↗
2026-09-29Zaheer SrilataPurchase (P)Common Stock40USD 49.97USD 1,999SEC filing ↗
2026-09-29Lauber Charles TPurchase (P)Common Stock2,005USD 49.87USD 99,989SEC filing ↗
2026-09-28Zaheer SrilataPurchase (P)Common Stock2,000USD 49.06USD 98,120SEC filing ↗
2026-09-28Rasmussen Trangsrud Teresa JPurchase (P)Common Stock2,042USD 48.96USD 99,986SEC filing ↗
2026-09-28HANDLEY THOMAS WPurchase (P)Common Stock2,000USD 49.41USD 98,820SEC filing ↗
2026-09-28FLORNESS DANIEL LPurchase (P)Common Stock2,030USD 49.34USD 100,160SEC filing ↗
2026-08-11Weaver Nathan D.Sale (S)Common Stock9,561USD 62.06USD 593,356SEC filing ↗
2026-08-11Weaver Nathan D.Option exercise / conversion (M)Common Stock9,561USD 51.76USD 494,916SEC filing ↗
2026-07-09Magalhaes JoaoOption exercise / conversion (M)Common Stock1,658USD 50.10USD 83,066SEC filing ↗
2026-04-17Rasmussen Trangsrud Teresa JPurchase (P)Common Stock1,000USD 65.83USD 65,830SEC filing ↗
2026-04-17Rasmussen Trangsrud Teresa JAward / grant (A)Common Stock1,000USD 65.83USD 65,830SEC filing ↗
2026-04-07Mastin Celeste BeeksPurchase (P)Common Stock5,170USD 57.08USD 295,104SEC filing ↗
2026-02-04Magalhaes JoaoOption exercise / conversion (M)Common Stock519USD 63.06USD 32,728SEC filing ↗
2026-02-04Magalhaes JoaoTax withholding (F)Common Stock245USD 63.06USD 15,450SEC filing ↗
2026-01-27Weaver Nathan D.Option exercise / conversion (M)Common Stock870USD 59.81USD 52,035SEC filing ↗
2026-01-27Weaver Nathan D.Tax withholding (F)Common Stock268USD 59.81USD 16,029SEC filing ↗
2026-01-27Ogunsanya Gregory O.Option exercise / conversion (M)Common Stock600USD 59.81USD 35,886SEC filing ↗
2026-01-27Ogunsanya Gregory O.Tax withholding (F)Common Stock217USD 59.81USD 12,979SEC filing ↗
2026-01-27Mastin Celeste BeeksOption exercise / conversion (M)Common Stock7,933USD 59.81USD 474,473SEC filing ↗
2026-01-27Mastin Celeste BeeksTax withholding (F)Common Stock3,122USD 59.81USD 186,727SEC filing ↗
2026-01-27Martsching Robert JOption exercise / conversion (M)Common Stock269USD 59.81USD 16,089SEC filing ↗
2026-01-27Martsching Robert JTax withholding (F)Common Stock77USD 59.81USD 4,605SEC filing ↗
2026-01-27Malik Muhammad ShahbazOption exercise / conversion (M)Common Stock600USD 59.81USD 35,886SEC filing ↗
2026-01-27Malik Muhammad ShahbazTax withholding (F)Common Stock192USD 59.81USD 11,484SEC 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 · —
TickerFUL
CIK0000039368
SectorBasic Materials
IndustrySpecialty Chemicals Yahoo Finance
SEC SIC2891 Adhesives & Sealants
ExchangeNYSE

Data coverage

Local Form 4 history815 transaction lines from 2020-01-24 to 2026-10-07
15 P purchase lines · 90 S sale lines · 710 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.