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

ENVIRI Corp

NVRI · — · CIK 0000045876 · Industrials · Waste Management

INSIDER SIGNAL

73.7 / 100

4 buyers · 6 purchase transaction lines · $1.6M gross purchase

WHY THIS SIGNAL?

Buyer breadthStrong
Purchase sizeModerate
RoleModerate
RecencyLow
ConvictionStrong
Score anatomy

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

Cluster+28.0 / 35
Purchase size+19.1 / 25
Role+13.0 / 20
Recency+3.6 / 10
Conviction+10.0 / 10

What is holding the score back?

  • ⚠ Role scores low · most senior buyer: Executive Vice President & CFO (CEO, chair and 10% owners score lowest)
  • ⚠ Purchase activity is becoming less recent
  • ✓ Cluster breadth is broad · 4+ insiders

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
Reitemeier ChristophePresident-Harsco Environmental
○○○○○○
Vadaketh Tom GeorgeSVP and CFO
○○○○○
Romaninsky Samuel DardenVP, General Counsel & CCO
○○○○○
Beswick Jeffrey ASVP & Grp. Pres., Clean Earth
○○○○
Earl James FDirector
○○○
Hochman Russell C.President & COO
○○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 10 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

73.7 / 100

Latest recorded score

↓ -0.2 ptsversus the previous recorded snapshot
  1. 74.1
  2. 74.1
  3. 74.0
  4. 73.9
  5. 73.7

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

Recent Form 4 activity

0Purchases
1Sales
165Other Form 4 lines
77SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER76 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
-11.1%
3M
-13.8%
6M
+1.0%
12M
+68.4%

Volatility & liquidity

Volatility
52.6%
Beta
—
Avg daily value
USD 6.9M

Valuation

Market cap
USD 1.6B
P/E
—

Fundamentals

Profit margin
-7.5%
ROE
-65.7%
Industry
Waste Management

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, Profit margin, ROE · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-04-24 · Status: PASS

Short interest

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

Shares short
3,360,381
Previous report
3,302,124
Avg daily volume
348,968
Days to cover
9.6

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
2025-03-14Vadaketh Tom GeorgePurchase (P)Common Stock40,297USD 6.20USD 249,841SEC filing ↗
2025-03-14Hochman Russell C.Purchase (P)Common Stock40,127USD 6.27USD 251,596SEC filing ↗
2024-11-12Vadaketh Tom GeorgePurchase (P)Common Stock, $1.25 par value13,343USD 7.12USD 95,002SEC filing ↗
2024-11-08Vadaketh Tom GeorgePurchase (P)Common Stock, $1.25 par value21,956USD 6.92USD 151,936SEC filing ↗
2024-05-06GRASBERGER F NICHOLAS IIIPurchase (P)Common Stock25,000USD 7.59USD 189,750SEC filing ↗
2023-08-09Minan Peter FrancisPurchase (P)Common Stock3,667USD 7.02USD 25,742SEC filing ↗
2022-02-28GRASBERGER F NICHOLAS IIIPurchase (P)Common Stock25,000USD 11.92USD 298,000SEC filing ↗
2022-02-28Aga AnshoomanPurchase (P)Common Stock2,000USD 11.78USD 23,560SEC filing ↗
2021-11-04Stanton DavidPurchase (P)Common Stock5,000USD 13.75USD 68,750SEC filing ↗
2021-11-04Aga AnshoomanPurchase (P)Common Stock2,000USD 13.63USD 27,260SEC filing ↗
2020-05-15Purvis Edgar M JrPurchase (P)Common Stock9,000USD 8.50USD 76,500SEC filing ↗
2020-05-14WIDMAN PHILLIPPurchase (P)Common Stock25,000USD 7.56USD 189,100SEC filing ↗
2020-05-13HAZNEDAR CAROLANN IPurchase (P)Common Stock10,000USD 7.69USD 76,900SEC filing ↗
2020-03-16GRASBERGER F NICHOLAS IIIPurchase (P)Common Stock25,000USD 6.81USD 170,250SEC filing ↗
2020-03-12Gill JeswantPurchase (P)Common Stock6,486USD 7.00USD 45,402SEC filing ↗

Form 4 evidence

166 transaction lines in the latest 365-day window; 465 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-01Quinn John SD (D)Common Stock40,140USD 0.00USD 0SEC filing ↗
2026-06-01Purvis Edgar M JrD (D)Common Stock101,925USD 0.00USD 0SEC filing ↗
2026-06-01O'Mara Rebecca MartinezD (D)Common Stock47,909USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-06-01Quinn John SD (D)Common Stock40,140USD 0.00USD 0SEC filing ↗
2026-06-01Purvis Edgar M JrD (D)Common Stock101,925USD 0.00USD 0SEC filing ↗
2026-06-01O'Mara Rebecca MartinezD (D)Common Stock47,909USD 0.00USD 0SEC filing ↗
2026-06-01Lada Gary RaymondD (D)Common Stock12,092USD 0.00USD 0SEC filing ↗
2026-06-01LAURION TIMOTHY MD (D)Common Stock47,760USD 0.00USD 0SEC filing ↗
2026-06-01Kozak Jennifer OttD (D)Common Stock101,019USD 0.00USD 0SEC filing ↗
2026-06-01HAZNEDAR CAROLANN ID (D)Common Stock95,491USD 0.00USD 0SEC filing ↗
2026-06-01GRASBERGER F NICHOLAS IIID (D)Common Stock1,677,852USD 0.00USD 0SEC filing ↗
2026-06-01FANANDAKIS NICHOLAS CD (D)Common Stock18,309USD 0.00USD 0SEC filing ↗
2026-06-01Earl James FD (D)Common Stock130,552USD 0.00USD 0SEC filing ↗
2026-06-01Vadaketh Tom GeorgeD (D)Common Stock412,675USD 0.00USD 0SEC filing ↗
2026-06-01Romaninsky Samuel DardenD (D)Common Stock, $1.25 par value55,329USD 0.00USD 0SEC filing ↗
2026-06-01Reitemeier ChristopheD (D)Common Stock66,491USD 0.00USD 0SEC filing ↗
2026-06-01Hochman Russell C.D (D)Common Stock272,654USD 0.00USD 0SEC filing ↗
2026-06-01Fenice Samuel C.D (D)Common Stock74,142USD 0.00USD 0SEC filing ↗
2026-05-28Vadaketh Tom GeorgeOption exercise / conversion (M)Common Stock89,829USD 0.00USD 0SEC filing ↗
2026-05-28Vadaketh Tom GeorgeD (D)Common Stock89,829USD 21.22USD 1,906,171SEC filing ↗
2026-05-28Romaninsky Samuel DardenOption exercise / conversion (M)Common Stock, $1.25 par value11,310USD 0.00USD 0SEC filing ↗
2026-05-28Romaninsky Samuel DardenD (D)Common Stock, $1.25 par value11,310USD 21.22USD 239,998SEC filing ↗
2026-05-28Reitemeier ChristopheOption exercise / conversion (M)Common Stock23,684USD 0.00USD 0SEC filing ↗
2026-05-28Reitemeier ChristopheD (D)Common Stock23,684USD 21.22USD 502,574SEC filing ↗
2026-05-28Hochman Russell C.Option exercise / conversion (M)Common Stock49,742USD 0.00USD 0SEC filing ↗
2026-05-28Hochman Russell C.D (D)Common Stock49,742USD 21.22USD 1,055,525SEC filing ↗
2026-05-28Fenice Samuel C.Option exercise / conversion (M)Common Stock11,976USD 0.00USD 0SEC filing ↗
2026-05-28Fenice Samuel C.D (D)Common Stock11,976USD 21.22USD 254,131SEC filing ↗
2026-05-20Vadaketh Tom GeorgeOption exercise / conversion (M)Common Stock165,805USD 0.00USD 0SEC filing ↗
2026-05-20Vadaketh Tom GeorgeTax withholding (F)Common Stock76,139USD 19.53USD 1,486,995SEC filing ↗
2026-05-20Romaninsky Samuel DardenOption exercise / conversion (M)Common Stock, $1.25 par value16,195USD 0.00USD 0SEC filing ↗
2026-05-20Romaninsky Samuel DardenTax withholding (F)Common Stock, $1.25 par value7,439USD 19.53USD 145,284SEC filing ↗
2026-05-20Reitemeier ChristopheOption exercise / conversion (M)Common Stock19,993USD 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 · —
TickerNVRI
CIK0000045876
SectorIndustrials
IndustryWaste Management Yahoo Finance
SEC SIC8900 Services-Services, NEC
Exchange—

Data coverage

Local Form 4 history465 transaction lines from 2020-01-02 to 2026-06-01
20 P purchase lines · 8 S sale lines · 437 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.