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Diffusion Engineers bulk deals, insider trading and stake changes

NSE: DIFFNKGBSE: 544264Industrial ProductsSmall Cap

Last close ₹394.35down ₹4.05 (1.02%)BSE ₹394.10

Share price at the NSE close on 23 Oct 2026. Previous close ₹398.40.

52-week range of traded prices to 23 Oct 2026
₹216.80Low, 19 Mar 2026₹519.90High, 4 Sep 2026
Market cap
₹1,476 Cr1,428th largest listed
P/E
27.0
P/B
3.6
Dividend yield
0.38%
ROE
14.1%
ROCE
12.3%
Debt to equity
0.07
Volume, NSE
96,80550.7% delivered

Promoter and insider buying and selling

Trades made since 23 Oct 2025.Diffusion Engineers promoter holding

Bought on the market Sold on the market
  • Promoters and promoter group1 purchase, 0 sales₹0.54 CrNo saleNet₹0.54 Cr
  • Others2 purchases, 0 sales₹8.95 CrNo saleNet₹8.95 Cr9 pledge filings of unclear kind
Bought and sold count trades on the market only. A pledge is shares given to a lender as security for a loan; a lender invokes it by selling them.

Diffusion Engineers insider trading

All 64 disclosures on record.Insider trading, all companies

  1. Sep 2026

    • VINOD KUMAR GULABRAM KUKREJA₹0.12 Cr2,754 sharesSold or invoked · Designated Person · 30 Sep 2026 · disclosed 7 Oct
    • VINOD KUMAR GULABRAM KUKREJA₹0.04 Cr950 sharesBought · Designated Person · 30 Sep 2026 · disclosed 7 Oct
    • VINOD KUMAR GULABRAM KUKREJA₹0.02 Cr500 sharesBought · Designated Person · 8 Sep 2026 · disclosed 30 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.03 Cr696 sharesSold or invoked · Designated Person · 8 Sep 2026 · disclosed 30 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.02 Cr500 sharesSold or invoked · Designated Person · 7 Sep 2026 · disclosed 30 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.11 Cr2,500 sharesBought · Designated Person · 7 Sep 2026 · disclosed 30 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.23 Cr4,500 sharesSold or invoked · Designated Person · 4 Sep 2026 · disclosed 30 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.37 Cr7,500 sharesBought · Designated Person · 4 Sep 2026 · disclosed 30 Sep
  2. Aug 2026

    • VINOD KUMAR GULABRAM KUKREJA₹0.31 Cr7,000 sharesBought · Designated Person · 27 Aug 2026 · disclosed 30 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.32 Cr7,000 sharesSold or invoked · Designated Person · 27 Aug 2026 · disclosed 30 Sep
  3. Jun 2026

    • VINOD KUMAR GULABRAM KUKREJA₹0.72 Cr18,099 sharesSold or invoked · Designated Person · 12 Jun 2026 · disclosed 30 Jun
    • VINOD KUMAR GULABRAM KUKREJA₹0.70 Cr18,000 sharesBought · Designated Person · 12 Jun 2026 · disclosed 30 Jun
    • VINOD KUMAR GULABRAM KUKREJA₹0.13 Cr3,950 sharesPledge · Designated Person · 8 Jun 2026 · disclosed 11 Jun
    • VINOD KUMAR GULABRAM KUKREJA₹0.13 Cr3,950 sharesSold or invoked · Designated Person · 8 Jun 2026 · disclosed 11 Jun
    • VINOD KUMAR GULABRAM KUKREJA₹0.08 Cr2,476 sharesSold or invoked · Designated Person · 5 Jun 2026 · disclosed 9 Jun
    • VINOD KUMAR GULABRAM KUKREJA₹0.05 Cr1,526 sharesPledge · Designated Person · 5 Jun 2026 · disclosed 9 Jun
    • VINOD KUMAR GULABRAM KUKREJA₹0.03 Cr950 sharesBought · Designated Person · 5 Jun 2026 · disclosed 9 Jun
    • VINOD KUMAR GULABRAM KUKREJA₹0.30 Cr9,100 sharesSold or invoked · Designated Person · 3 Jun 2026 · disclosed 5 Jun
    • VINOD KUMAR GULABRAM KUKREJA₹0.24 Cr7,363 sharesBought · Designated Person · 1 Jun 2026 · disclosed 4 Jun
  4. May 2026

    • VINOD KUMAR GULABRAM KUKREJA₹0.09 Cr2,836 sharesBought · Designated Person · 29 May 2026 · disclosed 2 Jun
    • VINOD KUMAR GULABRAM KUKREJA₹0.13 Cr3,974 sharesPledge · Designated Person · 29 May 2026 · disclosed 2 Jun
    • VINOD KUMAR GULABRAM KUKREJA₹0.23 Cr6,810 sharesSold or invoked · Designated Person · 29 May 2026 · disclosed 2 Jun
  5. Mar 2026

    • VINOD KUMAR GULABRAM KUKREJA₹0.02 Cr648 sharesBought · Designated Person · 17 Mar 2026 · disclosed 7 Apr
    • VINOD KUMAR GULABRAM KUKREJA₹0.04 Cr1,450 sharesSold or invoked · Designated Person · 17 Mar 2026 · disclosed 7 Apr
    • VINOD KUMAR GULABRAM KUKREJA₹0.03 Cr1,450 sharesPledge · Designated Person · 17 Mar 2026 · disclosed 7 Apr
    • VINOD KUMAR GULABRAM KUKREJA₹0.09 Cr3,900 sharesBought · Designated Person · 16 Mar 2026 · disclosed 7 Apr
    • VINOD KUMAR GULABRAM KUKREJA₹0.06 Cr2,450 sharesSold or invoked · Designated Person · 16 Mar 2026 · disclosed 7 Apr
  6. Feb 2026

    • Prashant Garg₹0.54 Cr20,100 sharesBought · Promoter and Director · 11 Feb 2026 · disclosed 12 Feb · stake 27.91% before, 27.96% after
Earlier, Aug 2025 to Dec 2025
  1. Dec 2025

    • VINOD KUMAR GULABRAM KUKREJA₹0.06 Cr1,707 sharesBought · Designated Person · 31 Dec 2025 · disclosed 3 Jan 2026
    • VINOD KUMAR GULABRAM KUKREJA₹0.09 Cr2,628 sharesBought · Designated Person · 11 Dec 2025 · disclosed 2 Jan 2026
    • VINOD KUMAR GULABRAM KUKREJA₹0.38 Cr11,264 sharesSold or invoked · Designated Person · 11 Dec 2025 · disclosed 2 Jan 2026
    • VINOD KUMAR GULABRAM KUKREJA₹0.06 Cr2,000 sharesPledge · Designated Person · 3 Dec 2025 · disclosed 9 Dec
  2. Nov 2025

    • VINOD KUMAR GULABRAM KUKREJA₹0.03 Cr1,000 sharesSold or invoked · Designated Person · 28 Nov 2025 · disclosed 5 Dec
    • VINOD KUMAR GULABRAM KUKREJA₹0.09 Cr3,000 sharesBought · Designated Person · 28 Nov 2025 · disclosed 5 Dec
    • Diffusion ESOP TRUST₹8.77 Cr2,93,959 sharesBought · Trust · 25 Nov 2025 · disclosed 26 Nov · stake 0.02% before, 0.80% after
    • VINOD KUMAR GULABRAM KUKREJA₹0.18 Cr6,000 sharesPledge · Designated Person · 25 Nov 2025 · disclosed 27 Nov
    • Diffusion ESOP TRUST₹0.18 Cr6,041 sharesBought · Trust · 24 Nov 2025 · disclosed 26 Nov · held none before, holds 6,041 after, stake 0.02% after
    • VINOD KUMAR GULABRAM KUKREJA₹0.18 Cr6,000 sharesBought · Designated Person · 24 Nov 2025 · disclosed 27 Nov
    • VINOD KUMAR GULABRAM KUKREJA₹0.03 Cr1,000 sharesPledge · Designated Person · 21 Nov 2025 · disclosed 26 Nov
    • VINOD KUMAR GULABRAM KUKREJA₹0.05 Cr1,700 sharesSold or invoked · Designated Person · 21 Nov 2025 · disclosed 26 Nov
    • VINOD KUMAR GULABRAM KUKREJA₹0.05 Cr1,700 sharesBought · Designated Person · 21 Nov 2025 · disclosed 26 Nov
    • Chitra Chandrasekaran Iyer₹0.04 Cr1,344 sharesBought · Designated Person · 20 Nov 2025 · disclosed 22 Dec
    • Chitra Chandrasekaran Iyer₹0.02 Cr636 sharesPledge · Designated Person · 20 Nov 2025 · disclosed 22 Dec
    • Chitra Chandrasekaran Iyer₹0.02 Cr599 sharesPledge · Designated Person · 20 Nov 2025 · disclosed 22 Dec
    • Chitra Chandrasekaran Iyer₹0.04 Cr1,349 sharesSold or invoked · Designated Person · 20 Nov 2025 · disclosed 22 Dec
  3. Sep 2025

    • VINOD KUMAR GULABRAM KUKREJA₹0.13 Cr3,558 sharesPledge · Designated Person · 30 Sep 2025 · disclosed 3 Oct
    • VINOD KUMAR GULABRAM KUKREJA₹0.08 Cr2,291 sharesSold or invoked · Designated Person · 30 Sep 2025 · disclosed 3 Oct
    • VINOD KUMAR GULABRAM KUKREJA₹0.05 Cr1,442 sharesSold or invoked · Designated Person · 29 Sep 2025 · disclosed 1 Oct
    • VINOD KUMAR GULABRAM KUKREJA₹0.05 Cr1,442 sharesPledge · Designated Person · 29 Sep 2025 · disclosed 1 Oct
    • VINOD KUMAR GULABRAM KUKREJA₹0.18 Cr5,000 sharesPledge · Designated Person · 26 Sep 2025 · disclosed 1 Oct
    • VINOD KUMAR GULABRAM KUKREJA₹0.04 Cr990 sharesSold or invoked · Designated Person · 25 Sep 2025 · disclosed 29 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.22 Cr5,990 sharesBought · Designated Person · 25 Sep 2025 · disclosed 29 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.21 Cr5,100 sharesSold or invoked · Designated Person · 19 Sep 2025 · disclosed 25 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.20 Cr5,100 sharesBought · Designated Person · 19 Sep 2025 · disclosed 25 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.25 Cr6,090 sharesSold or invoked · Designated Person · 17 Sep 2025 · disclosed 24 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.24 Cr6,090 sharesBought · Designated Person · 17 Sep 2025 · disclosed 24 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.36 Cr9,100 sharesSold or invoked · Designated Person · 11 Sep 2025 · disclosed 15 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.36 Cr9,100 sharesBought · Designated Person · 11 Sep 2025 · disclosed 15 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.37 Cr9,700 sharesSold or invoked · Designated Person · 4 Sep 2025 · disclosed 8 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.37 Cr9,700 sharesBought · Designated Person · 4 Sep 2025 · disclosed 8 Sep
  4. Aug 2025

    • VINOD KUMAR GULABRAM KUKREJA₹0.15 Cr3,990 sharesSold or invoked · Designated Person · 29 Aug 2025 · disclosed 4 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.15 Cr3,990 sharesBought · Designated Person · 29 Aug 2025 · disclosed 4 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.15 Cr3,990 sharesSold or invoked · Designated Person · 28 Aug 2025 · disclosed 3 Sep
    • VINOD KUMAR GULABRAM KUKREJA₹0.14 Cr3,990 sharesBought · Designated Person · 28 Aug 2025 · disclosed 3 Sep

Trades by the company's promoters, directors, key managers, employees and their relatives, as each disclosed them. Value is what the filer stated; the mode is shown where the shares moved off the market.

Diffusion Engineers stake sales and purchases

All 2 disclosures on record.

  1. Dec 2025

    • Sold3P India Equity Fund2.63% of the company9,82,476 sharesholds 2.70% after23 Dec 2025 · filed under the 2% rule · Open Market
  2. Oct 2024

    • Acquired3P India Equity Fund2.94% of the company11,00,793 sharesholds 5.33% after7 Oct 2024 · filed under the 5% rule · Open Market

The 5% rule: an investor discloses on reaching 5% of the company. The 2% rule: a holder of 5% or more discloses each change of 2% or more, including one that takes it below 5%. A transfer exempt from an open offer, the offer to buy from every other shareholder that a large purchase otherwise brings, is disclosed too. Each line shows what its filing states, which can be a smaller change than its rule names.

Diffusion Engineers bulk deals

Last 12 months, since 23 Oct 2025: 11 bulk deals, ₹70 Cr bought and ₹61 Cr sold Today's bulk and block deals, all companies

ValuePer cent of the company

Monday 31 Aug 20264 firms · ₹55 Cr bought · ₹55 Cr soldNet sold ₹0.20 Cr
  • Both waysNK SECURITIES RESEARCH PRIVATE LIMITEDBought 4,15,329 at ₹468.15Sold 4,17,401 at ₹468.611.12% of the companyNet −2,072 shares₹19 Cr bought
  • Both waysJUNOMONETA FINSOL PRIVATE LIMITEDBought 2,47,003 at ₹466.63Sold 2,48,958 at ₹466.790.67% of the companyNet −1,955 shares₹12 Cr bought
  • Both waysQE SECURITIES LLPBought 2,07,783 at ₹465.23Sold 2,07,452 at ₹464.410.56% of the companyNet +331 shares₹9.67 Cr bought
  • Both waysMICROCURVES TRADING PRIVATE LIMITEDBought 3,02,078 at ₹467.86Sold 3,02,078 at ₹468.390.81% of the companyNet nil₹14 Cr bought
Tuesday 25 Nov 20252 firms · ₹8.75 Cr bought · ₹6.46 Cr soldNet bought ₹2.29 Cr
  • BoughtDIFFUSION ESOP TRUSTBought 2,93,959 at ₹297.680.79% of the company₹8.75 Cr
  • SoldLIMITED DHANTERASH SUPPLIERS PRIVATESold 2,17,217 at ₹297.400.58% of the company₹6.46 Cr
Friday 21 Nov 20251 firm · ₹6.46 Cr bought · ₹0 soldNet bought ₹6.46 Cr
  • BoughtLIMITED DHANTERASH SUPPLIERS PRIVATEBought 2,03,378 at ₹317.880.54% of the company₹6.46 Cr
Friday 16 May 20251 firm · ₹0 bought · ₹6.28 Cr soldNet sold ₹6.28 Cr
  • SoldSARAVANA SECURITIES D.SATHYAMOORTHISold 2,20,000 at ₹285.650.59% of the company₹6.28 Cr
Tuesday 6 May 20251 firm · ₹0 bought · ₹5.75 Cr soldNet sold ₹5.75 Cr
  • SoldAJAYKUMAR NATAVARLAL SANGANISold 2,25,303 at ₹255.000.60% of the company₹5.75 Cr
Tuesday 4 Mar 20252 firms · ₹8.34 Cr bought · ₹8.29 Cr soldNet bought ₹0.05 Cr
  • BoughtSARAVANA SECURITIES D.SATHYAMOORTHIBought 3,20,000 at ₹260.640.86% of the company₹8.34 Cr
  • SoldSSPL SECURITIES PRIVATE LIMITEDSold 3,18,000 at ₹260.570.85% of the company₹8.29 Cr
Monday 28 Oct 20242 firms · ₹21 Cr bought · ₹11 Cr soldNet bought ₹10 Cr
  • BoughtSSPL SECURITIES PRIVATE LIMITEDBought 3,50,000 at ₹339.120.94% of the company₹12 Cr
  • Both waysMULTIPLIER SHARE & STOCK ADVISORS PRIVATE LIMITEDBought 2,76,278 at ₹339.29Sold 3,14,571 at ₹342.030.84% of the companyNet −38,293 shares₹9.37 Cr bought
Wednesday 23 Oct 20241 firm · ₹10 Cr bought · ₹2.03 Cr soldNet bought ₹8.46 Cr
  • Both waysMULTIPLIER SHARE & STOCK ADVISORS PRIVATE LIMITEDBought 2,37,676 at ₹441.49Sold 45,609 at ₹444.740.64% of the companyNet +1,92,067 shares₹10 Cr bought
Tuesday 22 Oct 20242 firms · ₹24 Cr bought · ₹24 Cr soldNet bought ₹0.14 Cr
  • Both waysSETU SECURITIES PVT LTDBought 1,95,264 at ₹484.16Sold 1,92,264 at ₹483.090.52% of the companyNet +3,000 shares₹9.45 Cr bought
  • Both waysNK SECURITIES RESEARCH PRIVATE LIMITEDBought 3,14,392 at ₹465.61Sold 3,14,392 at ₹466.280.84% of the companyNet nil₹15 Cr bought
Monday 21 Oct 20243 firms · ₹27 Cr bought · ₹27 Cr soldNet bought ₹0.41 Cr
  • Both waysSAROJDEVI S KABRABought 3,04,365 at ₹370.64Sold 2,89,365 at ₹374.590.81% of the companyNet +15,000 shares₹11 Cr bought
  • Both waysNK SECURITIES RESEARCH PRIVATE LIMITEDBought 2,13,699 at ₹370.57Sold 2,14,275 at ₹371.290.57% of the companyNet −576 shares₹7.92 Cr bought
  • Both waysKABRA KAILASHBought 2,18,081 at ₹374.89Sold 2,18,081 at ₹374.840.58% of the companyNet nil₹8.18 Cr bought
Friday 18 Oct 20243 firms · ₹28 Cr bought · ₹20 Cr soldNet bought ₹7.69 Cr
  • BoughtSHREE CAPITAL SERVICES LTDBought 2,40,000 at ₹313.760.64% of the company₹7.53 Cr
  • Both waysKABRA PRIYABought 3,28,761 at ₹308.74Sold 3,14,761 at ₹316.610.88% of the companyNet +14,000 shares₹10 Cr bought
  • Both waysNK SECURITIES RESEARCH PRIVATE LIMITEDBought 3,31,477 at ₹316.06Sold 3,31,477 at ₹316.690.89% of the companyNet nil₹10 Cr bought
Monday 14 Oct 20242 firms · ₹4.92 Cr bought · ₹5.29 Cr soldNet sold ₹0.37 Cr
  • SoldCINCO STOCK VISION LLPSold 2,02,356 at ₹252.660.54% of the company₹5.11 Cr
  • Both waysMANSI SHARE AND STOCK ADVISORS PVT LTDBought 2,00,003 at ₹246.24Sold 7,000 at ₹253.390.53% of the companyNet +1,93,003 shares₹4.92 Cr bought
Friday 11 Oct 20243 firms · ₹18 Cr bought · ₹9.35 Cr soldNet bought ₹8.45 Cr
  • BoughtSHREE CAPITAL SERVICES LTDBought 3,21,000 at ₹256.670.86% of the company₹8.24 Cr
  • BoughtCINCO STOCK VISION LLPBought 2,05,000 at ₹259.260.55% of the company₹5.31 Cr
  • Both waysVIJIT GLOBAL SECURITIES PRIVATE LIMITEDBought 1,78,696 at ₹238.07Sold 3,60,822 at ₹259.260.96% of the companyNet −1,82,126 shares₹4.25 Cr bought
Friday 4 Oct 20242 firms · ₹29 Cr bought · ₹0 soldNet bought ₹29 Cr
  • Bought3P INDIA EQUITY FUND 1Bought 11,00,793 at ₹202.762.94% of the company₹22 Cr
  • BoughtTRADE CORNERBought 3,69,065 at ₹193.500.99% of the company₹7.14 Cr

A bulk deal is one client trading half a per cent or more of the shares in a day; a block deal is a large trade in the exchange's separate block window, its buyer and its seller each on a line of their own. A firm that bought and sold the shares the same day is on one line, with its net. All 44 deals on record since listing on 4 Oct 2024.