The claim comes as the Aberdeenshire-based brewer and bar group revealed the scheme had raised £3 million within two months of its launch.
Brewdog said it was three-quarters of the way towards meeting the £4m target set when it launched its second Equity for Punks scheme in June. The crowdfunding offer is now likely to close earlier than the previously stated cut off date in January.
Investors have seized on the chance to buy shares in the fast-growing business online at a price of £95 each. The 42,500 shares made available equate to 3.9% of the overall equity in the expanded business.
The investment entitles shareholders a lifetime discount at Brewdog bars and at Brewdog.com.
To date some 10,000 investors have bought shares.
Brewdog plans to use the funds to expand its brewery, add to its bars and introduce a chain of bottle shops.