Windsor Machines promoter stake rises to 42.95%
Windsor Machines Limited promoter Ramesh Keshubhai Siyani acquired 34,80,000 equity shares through the conversion of warrants between June 11 and June 24, 2026, at ₹191.85 per share. This transaction increased the combined promoter holding to 42.95% of the total share capital. The shares were listed on June 25, 2026, and are locked in until December 31, 2027.

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Windsor Machines Limited promoter Ramesh Keshubhai Siyani increased his shareholding through the conversion of warrants into equity shares. The acquisition, which took place between June 11, 2026, and June 24, 2026, involved 34,80,000 equity shares. This conversion was part of a preferential allotment process that received trading approval from both the National Stock Exchange of India Limited (NSE) and BSE Limited on June 24, 2026, with listing effective June 25, 2026.
Acquisition Details
The shares were acquired at a price of ₹191.85 each, comprising a face value of ₹2 and a premium of ₹189.85. Following this transaction, the total equity share capital of Windsor Machines Limited increased to ₹20,34,54,024, consisting of 10,17,27,012 equity shares. The total diluted share capital post-acquisition stands at ₹20,69,18,834, comprising 10,34,59,417 equity shares.
Shareholding Pattern
The disclosure was made under Regulation 29(2) of the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011. Prior to the acquisition, the acquirer, Ramesh Keshubhai Siyani, along with his Person Acting in Concert (PAC), Plutus Investments and Holding Private Limited, held 39.53% of the total share capital. After the conversion of warrants, their combined holding has risen to 42.95% of the total share capital and 43.91% of the total diluted share capital.
Holding Summary
| Parameter | Before Acquisition | After Acquisition |
|---|---|---|
| Acquirer Shares | 52,12,405 | 86,92,405 |
| PAC Shares | 3,50,02,247 | 3,50,02,247 |
| Total Shares | 4,54,27,057 | 4,54,27,057 |
| Total % Holding | 39.53% | 42.95% |
| Diluted % Holding | 43.91% | 43.91% |
Lock-in and Trading
The newly allotted shares are subject to a lock-in period, restricting sale in the open market until December 31, 2027. The shares are traded under the symbol WINDMACHIN on the NSE and Scrip Code 522029 on the BSE.
Historical Stock Returns for Windsor Machines
| 1 Day | 5 Days | 1 Month | 6 Months | 1 Year | 5 Years |
|---|---|---|---|---|---|
| +0.37% | +1.56% | -4.61% | +25.60% | -15.56% | +752.32% |
How will the promoter's increased stake influence Windsor Machines' strategic direction and capital allocation decisions?
What is the intended use of the approximately ₹66.8 crore raised through this warrant conversion?
Will the promoter group consider further increasing their stake given the current holding is below the 50% threshold?































