ATM offerings follow a specific mechanical process governed by SEC regulations and contractual agreements between the company and its agent. According to DilutionWatch data covering 7,300+ stocks, understanding these mechanics is essential for investors because each step creates detectable signals that can inform investment decisions.
The process begins when the company and a broker-dealer (the agent) negotiate an ATM equity offering agreement. This agreement specifies the total dollar amount of shares that can be sold, the agent's commission (typically 2-3%), the agent's obligations, and the company's control parameters. The agreement is filed as an exhibit to a prospectus supplement under the company's existing shelf registration. Major ATM agents include Cowen (TD Cowen), Cantor Fitzgerald, B. Riley, H.C. Wainwright, and Jefferies.
Once the agreement is effective, the company sends sales instructions to the agent on days it wants to sell. These instructions typically specify the maximum number of shares to sell, a minimum price per share, and a volume limit (often as a percentage of average daily volume). The agent then executes sales through its trading desk during normal market hours, in ordinary market transactions. The shares are sold to regular market participants who may not know they're buying newly issued shares.
Settlement occurs on the standard T+1 settlement cycle. After settlement, the company receives the sale proceeds minus the agent's commission. The company's transfer agent issues new shares (or releases treasury shares) to complete the transactions. These new shares increase the total outstanding share count, diluting all existing shareholders proportionally. The company records the proceeds in its financial statements and files periodic updates with the SEC.
Disclosure timing is a critical aspect of ATM mechanics. The initial ATM agreement is disclosed immediately through the prospectus supplement filing. However, individual daily sales are not disclosed in real time. The company reports cumulative ATM activity in its quarterly filings (10-Q and 10-K), and some companies file 8-K amendments or current reports with periodic ATM updates. This disclosure lag means investors may not know the full extent of ATM dilution until weeks or months after shares have been sold. DilutionWatch bridges this gap through its estimation algorithms.
A broker-dealer acts as the company's agent, executing sales through its trading desk in ordinary market transactions. The agent earns a 2-3% commission. Major ATM agents include TD Cowen, Cantor Fitzgerald, B. Riley, and H.C. Wainwright.
Yes. The company sends daily instructions to the agent specifying when to sell, how many shares, minimum prices, and volume limits. The company can pause and resume the program at any time without public notice.
The initial program is disclosed immediately through a prospectus supplement. Individual sales are disclosed in quarterly reports (10-Q/10-K), with some companies providing periodic updates. There is typically a 1-3 month lag between sales and disclosure.
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