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Data sources

Public disclosures only. Scores flag unusual patterns and are not evidence of wrongdoing. Not investment advice.

RH CHAIN…
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodology
01Overview02Follow the Money03Daily Brief04Live05Congress06Corporate Insiders07Government Money08Political Influence09Institutions10Washington Network11Follow the Power12Disclosure Clock13AI Investigator14Watchlist
ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodology
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodology
Data sources
SEC FORM 436m ago
HOUSE PTR35m ago
SEC 13F35m ago
ROBINHOOD CHAIN35m ago
SEC FORM 4/Open-market purchaseVerified data

Parker Mark S bought HYFM

President · HYDROFARM HOLDINGS GROUP, INC. · Common Stock, $0.0001 par value per share

Side
BUY
Value
$20K
Shares
22.1K
Price
$0.91
Executed
Oct 27, 2026
Disclosed
Oct 29, 2026
Disclosure timeline2 days from execution to publication · legal deadline 2 business days
Oct 27 executedOct 29, 2026 disclosed

HYFM · daily

Yahoo Finance chart API
▲Execution▼Disclosure●Material company filing●Other disclosed buy●Other disclosed sellUnofficial public endpoint; daily OHLCV, split-adjusted. Replace with a licensed feed for production.

Insider Score

Experimental signal
41/ 100 · ELEVATED
Methodology →
  • Transaction type+20 / 20

    Open-market purchase

  • Relative size+13 / 25

    $20K reported value · 119.1% of prior position

  • Filing timing0 / 15

    Disclosed 2 business days after execution (deadline: 2)

  • Historical behavior+8 / 15

    First recorded trade by this actor in this security

  • Frequency & clustering0 / 15

    No clustered activity in the dataset

  • Market events0 / 10

    No material company filing within 60 days after the trade

    • The Insider Score measures how far a disclosure deviates from normal filing patterns. A high score is a prompt for research, not evidence of illegal insider trading.

    Other disclosed activity · HYFM

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    41
    PS
    Parker Mark SPresident
    HYFMHYDROFARM HOLDINGS GROUP, INC.
    Open-market purchase
    		BUY—
    22.1K sh
    		Oct 27, 2026Oct 29, 2026
    traded Oct 27, 2026
    		+2dSEC FORM 4

    Evidence

    9
    TD
    Toler William DouglasDirector, Chief Executive Officer, Executive Chairman of Board
    HYFMHYDROFARM HOLDINGS GROUP, INC.
    Grant or award
    		A—
    55.2K sh
    		Oct 27, 2026Oct 29, 2026
    traded Oct 27, 2026
    		+2dSEC FORM 4

    Evidence

    5
    OP
    O'Brien Kevin PatrickChief Financial Officer
    HYFMHYDROFARM HOLDINGS GROUP, INC.
    Grant or award
    		A—
    55.2K sh
    		Oct 27, 2026Oct 29, 2026
    traded Oct 27, 2026
    		+2dSEC FORM 4

    Evidence

    9
    YC
    Yetter Richard ChristopherDirector
    HYFMHYDROFARM HOLDINGS GROUP, INC.
    Grant or award
    		A—
    138.1K sh
    		Oct 27, 2026Oct 29, 2026
    traded Oct 27, 2026
    		+2dSEC FORM 4

    Evidence

    36
    OP
    O'Brien Kevin PatrickChief Financial Officer
    HYFMHYDROFARM HOLDINGS GROUP, INC.
    Grant or award
    		A$50K
    55.2K sh
    		Oct 27, 2006Oct 29, 2026
    traded Oct 27, 2006
    		+7307dSEC FORM 4

    Evidence

    17
    TD
    Toler William DouglasDirector, Chief Executive Officer, Executive Chairman of Board
    HYFMHYDROFARM HOLDINGS GROUP, INC.
    Grant or award
    		A$50K
    55.2K sh
    		Oct 27, 2026Oct 29, 2026
    traded Oct 27, 2026
    		+2dSEC FORM 4

    Evidence

    20
    YC
    Yetter Richard ChristopherDirector
    HYFMHYDROFARM HOLDINGS GROUP, INC.
    Grant or award
    		A$125K
    138.1K sh
    		Oct 27, 2026Oct 29, 2026
    traded Oct 27, 2026
    		+2dSEC FORM 4

    Evidence

    25
    OP
    O'Brien Kevin PatrickChief Financial Officer
    HYFMHYDROFARM HOLDINGS GROUP, INC.
    Open-market sale
    		SELL$1,737
    1,150 sh
    		Jan 6, 2026Jan 8, 2026
    traded Jan 6, 2026
    		+2dSEC FORM 4

    Evidence

    13
    AE
    Ackerman EricaCAO and Corporate Controller
    HYFMHYDROFARM HOLDINGS GROUP, INC.
    Tax withholding
    		F$1,037
    687 sh
    		Jan 6, 2026Jan 8, 2026
    traded Jan 6, 2026
    		+2dSEC FORM 4

    Evidence

    13
    PS
    Parker Mark SPresident
    HYFMHYDROFARM HOLDINGS GROUP, INC.
    Tax withholding
    		F$2,525
    1,672 sh
    		Jan 6, 2026Jan 8, 2026
    traded Jan 6, 2026
    		+2dSEC FORM 4

    Evidence

    21
    DM
    Denis MelisaDirector
    HYFMHYDROFARM HOLDINGS GROUP, INC.
    Open-market sale
    		SELL$5,407
    2,875 sh
    		Dec 4, 2025Dec 8, 2025
    traded Dec 4, 2025
    		+4dSEC FORM 4

    Evidence

    17
    DM
    Denis MelisaDirector
    HYFMHYDROFARM HOLDINGS GROUP, INC.
    Open-market sale
    		SELL$230
    120 sh
    		Dec 5, 2025Dec 8, 2025
    traded Dec 5, 2025
    		+3dSEC FORM 4

    Evidence

    Evidence

    Verified data

    Read directly from the primary public document; every field below is as reported by the filer.

    Source

    Document
    SEC Form 4
    Publisher
    U.S. Securities and Exchange Commission (EDGAR)
    Document ID
    0001437749-26-034002
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Oct 27, 2026
    Published
    Oct 29, 2026
    Ingested by INSIDER
    Nov 5, 02:08 UTC
    Last re-read
    Nov 5, 02:08 UTC

    Extracted facts

    Filer
    Parker Mark S
    Role
    President
    Transaction
    Open-market purchaseAs filed: “P”
    Asset
    HYDROFARM HOLDINGS GROUP, INC.
    Ticker
    HYFM
    Shares
    22.1K
    Price per share
    $0.91
    Value
    $20,000
    Execution date (reported)
    Oct 27, 2026
    Owned after transaction
    40.7K shares
    Days from execution to publication
    2

    Calculation

    Value = shares × reported price per share

    • Shares: 22.1K
    • Price: $0.905

    = $20,000

    What this establishes

    Parker Mark S filed this Form 4 reporting a open-market purchase of HYFM on Oct 27, 2026. It became public on Oct 29, 2026. The filing establishes the reported transaction and the filer's stated role. It does not establish why the trade was made or what the filer knew.

    Extraction

    Method
    Form 4 XML
    Confidence
    1.00
    President
    Parker Mark Scik:0001915363
    Issuer
    HYDROFARM HOLDINGS GROUP, INC.cik:0001695295

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.