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

Quest Resource Holding Corp

QRHC · Nasdaq · CIK 0001442236 · Industrials · Waste Management

INSIDER SIGNAL

No active buy signal

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

44 Form 4 transaction lines observed in the same window
0 sales · 44 option, withholding, award, gift or other lines

Last qualifying purchase2026-03-19 · FRIEDBERG DANIEL M.; Hampstead Park Capital Management, LLC; Hampstead Park Environmental Services Investment Fund LLC · $7.4K

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
Tomolonius SarahDirector
○○○○○○
Nolan Stephen ADirector
○○○○○
Lipstein Robert JDirector
○○○○○
FRIEDBERG DANIEL M.; Hampstead Park Capital Management, LLC; Hampstead Park Environmental Services Investment Fund LLCDirector,TenPercentOwner; TenPercentOwner
○○○○○
Dunning AudreyDirector
○○○○○
Culpepper GlennDirector
○○○○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 2 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: 2026-03-19 · FRIEDBERG DANIEL M.; Hampstead Park Capital Management, LLC; Hampstead Park Environmental Services Investment Fund LLC.

Recent Form 4 activity

7Purchases
0Sales
61Other Form 4 lines
64SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER44 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
32,561
Previous report
42,936
Avg daily volume
24,010
Days to cover
1.4

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
2026-03-19FRIEDBERG DANIEL M.; Hampstead Park Capital Management, LLC; Hampstead Park Environmental Services Investment Fund LLCPurchase (P)Common Stock8,500USD 0.87USD 7,395SEC filing ↗
2026-03-18Lipstein Robert JPurchase (P)Common Stock11,000USD 0.90USD 9,900SEC filing ↗
2026-03-16Culpepper GlennPurchase (P)Common Stock5,000USD 1.16USD 5,800SEC filing ↗
2025-12-23Culpepper GlennPurchase (P)Common Stock5,000USD 1.96USD 9,800SEC filing ↗
2025-10-27KITT BARRY MPurchase (P)Common Stock, $0.001 par value per share62,867USD 1.36USD 85,499SEC filing ↗
2025-10-24KITT BARRY MPurchase (P)Common Stock, $0.001 par value per share33,480USD 1.33USD 44,528SEC filing ↗
2025-10-23KITT BARRY MPurchase (P)Common Stock, $0.001 par value per share103,412USD 1.26USD 130,299SEC filing ↗
2025-09-02Dunning AudreyPurchase (P)Common Stock4,000USD 1.82USD 7,280SEC filing ↗
2025-08-20FRIEDBERG DANIEL M.; Hampstead Park Capital Management, LLC; Hampstead Park Environmental Services Investment Fund LLCPurchase (P)Common Stock17,232USD 1.60USD 27,571SEC filing ↗
2025-08-14Lipstein Robert JPurchase (P)Common Stock15,000USD 1.70USD 25,500SEC filing ↗
2025-08-14Culpepper GlennPurchase (P)Common Stock5,000USD 1.68USD 8,400SEC filing ↗
2025-03-19FRIEDBERG DANIEL M.; Hampstead Park Capital Management, LLC; Hampstead Park Environmental Services Investment Fund LLCPurchase (P)Common Stock2,574USD 2.96USD 7,619SEC filing ↗
2025-03-18FRIEDBERG DANIEL M.; Hampstead Park Capital Management, LLC; Hampstead Park Environmental Services Investment Fund LLCPurchase (P)Common Stock10,000USD 2.95USD 29,500SEC filing ↗
2025-03-18Nolan Stephen APurchase (P)Common Stock4,000USD 2.99USD 11,960SEC filing ↗
2025-03-18Dunning AudreyPurchase (P)Common Stock2,500USD 3.04USD 7,600SEC filing ↗

Form 4 evidence

68 transaction lines in the latest 365-day window; 484 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30Tomolonius SarahAward / grant (A)Common Stock2,573USD 1.36USD 3,499SEC filing ↗
2026-09-30Nolan Stephen AAward / grant (A)Common Stock2,573USD 1.36USD 3,499SEC filing ↗
2026-09-30Lipstein Robert JAward / grant (A)Common Stock2,573USD 1.36USD 3,499SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30Tomolonius SarahAward / grant (A)Common Stock2,573USD 1.36USD 3,499SEC filing ↗
2026-09-30Nolan Stephen AAward / grant (A)Common Stock2,573USD 1.36USD 3,499SEC filing ↗
2026-09-30Lipstein Robert JAward / grant (A)Common Stock2,573USD 1.36USD 3,499SEC filing ↗
2026-09-30FRIEDBERG DANIEL M.; Hampstead Park Capital Management, LLC; Hampstead Park Environmental Services Investment Fund LLCAward / grant (A)Common Stock20,529USD 1.36USD 27,919SEC filing ↗
2026-09-30Dunning AudreyAward / grant (A)Common Stock2,573USD 1.36USD 3,499SEC filing ↗
2026-09-30Culpepper GlennAward / grant (A)Common Stock2,573USD 1.36USD 3,499SEC filing ↗
2026-08-31Tomolonius SarahAward / grant (A)Common Stock2,500USD 1.40USD 3,500SEC filing ↗
2026-08-31Nolan Stephen AAward / grant (A)Common Stock2,500USD 1.40USD 3,500SEC filing ↗
2026-08-31Lipstein Robert JAward / grant (A)Common Stock2,500USD 1.40USD 3,500SEC filing ↗
2026-08-31FRIEDBERG DANIEL M.; Hampstead Park Capital Management, LLC; Hampstead Park Environmental Services Investment Fund LLCAward / grant (A)Common Stock19,942USD 1.40USD 27,919SEC filing ↗
2026-08-31Dunning AudreyAward / grant (A)Common Stock2,500USD 1.40USD 3,500SEC filing ↗
2026-08-31Culpepper GlennAward / grant (A)Common Stock2,500USD 1.40USD 3,500SEC filing ↗
2026-08-13Tomolonius SarahAward / grant (A)Common Stock28,767USD 1.46USD 42,000SEC filing ↗
2026-08-13Nolan Stephen AAward / grant (A)Common Stock28,767USD 1.46USD 42,000SEC filing ↗
2026-08-13Moss Perry W.Tax withholding (F)Common Stock9,683USD 1.46USD 14,137SEC filing ↗
2026-08-13Moss Perry W.Award / grant (A)Common Stock342,465USD 1.46USD 499,999SEC filing ↗
2026-08-13Lipstein Robert JAward / grant (A)Common Stock28,767USD 1.46USD 42,000SEC filing ↗
2026-08-13Johnston Brett WadeTax withholding (F)Common Stock3,246USD 1.46USD 4,739SEC filing ↗
2026-08-13Johnston Brett WadeAward / grant (A)Common Stock100,000USD 1.46USD 146,000SEC filing ↗
2026-08-13FRIEDBERG DANIEL M.; Hampstead Park Capital Management, LLC; Hampstead Park Environmental Services Investment Fund LLCAward / grant (A)Common Stock28,767USD 1.46USD 42,000SEC filing ↗
2026-08-13Dunning AudreyAward / grant (A)Common Stock28,767USD 1.46USD 42,000SEC filing ↗
2026-08-13Culpepper GlennAward / grant (A)Common Stock28,767USD 1.46USD 42,000SEC filing ↗
2026-07-31Tomolonius SarahAward / grant (A)Common Stock2,755USD 1.27USD 3,499SEC filing ↗
2026-07-31Nolan Stephen AAward / grant (A)Common Stock2,755USD 1.27USD 3,499SEC filing ↗
2026-07-31Lipstein Robert JAward / grant (A)Common Stock2,755USD 1.27USD 3,499SEC filing ↗
2026-07-31FRIEDBERG DANIEL M.; Hampstead Park Capital Management, LLC; Hampstead Park Environmental Services Investment Fund LLCAward / grant (A)Common Stock21,984USD 1.27USD 27,920SEC filing ↗
2026-07-31Dunning AudreyAward / grant (A)Common Stock2,755USD 1.27USD 3,499SEC filing ↗
2026-07-31Culpepper GlennAward / grant (A)Common Stock2,755USD 1.27USD 3,499SEC filing ↗
2026-06-30Tomolonius SarahAward / grant (A)Common Stock2,777USD 1.26USD 3,499SEC filing ↗
2026-06-30Nolan Stephen AAward / grant (A)Common Stock2,777USD 1.26USD 3,499SEC 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 · —
TickerQRHC
CIK0001442236
SectorIndustrials
IndustryWaste Management Yahoo Finance
SEC SIC4953 Refuse Systems
ExchangeNasdaq

Data coverage

Local Form 4 history484 transaction lines from 2020-01-31 to 2026-09-30
165 P purchase lines · 46 S sale lines · 273 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.