Can a company control its stock through contracts with stockholders?
Your first scenario, involving shareholders in a private corp being limited by a contractual agreement, is common in practice. Frequent clauses include methods of valuing the shares if someone wants to sell, first right of refusal [you have to attempt to sell to the other shareholders, before you can sell to a 3rd party], and many others. These clauses are governed by contract law [ie: some clauses may be illegal in contract law, and therefore couldn't be applied here]. A Universal Shareholders' Agreement is just the same as the above, but applied to more people. You would never get an already public company to convert to a universal shareholders' agreement - because even 1 share voting 'no' would block it [due to corporate law limiting the power of a corporation from abusing minority shareholder value]. In practice, these agreements universally exist at the start of incorporation, or at least at the first moment shares become available. An example is the Canadian mega-construction company PCL*, which is employee-owned. When the original owner transferred the corporation to his employees, there was a USA in place which still today governs how the corporation operates.  In theory you could have a 'public company' where most shares are already owned by the founders, and 100% of remaining shares are owned by a specific group of individuals, in which case you may be able to get a USA signed. But it wouldn't really happen in practice.  *[Note that while PCL is broadly owned by a large group of employees, it is not a 'public company' because any random schmuck can't simply buy a share on the Toronto Stock Exchange. I assume most exchanges would prevent corporations from being listed if they had ownership restrictions like this].
You can obtain a stocklist if you file a lawsuit as a shareholder against the company demanding that you receive the list. It's called an inspection case. The company then has to go to Cede and/or the Depository Trust Company who then compiles the NOBO COBO list of beneficiary stockholders. SEC.gov gives you a very limited list of people who have had to file 13g or 13d or similar filings. These are large holders. To get the list of ALL stockholders you have to go through Cede. "Dividends are declared by the board of directors of a corporation on date A, to stock holders of record on date B (a later date). These stockholders then receive the declared dividend on date C, the so-called payment date. All of these dates are announced on the first (declaration) date. If there is no announcement, no dividend will be paid. The stock typically goes down in price by approximately the amount of the dividend on the  date it ""goes ex,""  but then moves in price to reflect other developments, including the possibility of another declaration/payment, three months hence. Dividends are important to some investors, especially those who live on the income. They are less important to investors who are out for capital gains (and who may prefer that the company reinvest its money to seek such gains instead of paying dividends). In actual fact, dividends are one component of ""total"" or overall return. The other component is capital gains, and the sum of the two represents your return." The stockholders of company A vote to approve or disapprove the buy out. That is the only control you have on the price: Vote to approve or disapprove.  If the deal is approved then you get the money, or stock in B, or both, in accordance with the terms of the deal. It will arrive into your account automatically. I am relative newbie in the financial market trading and as I understand it, the response from Victor is accurate in respect of trading CFD contracts. However, there is also the option to 'trade' through a financial spread betting platform which as its name suggests is purely a bet based upon the price of the underlying stock/asset. As such, I believe that your theory to short a stock just prior to its ex-dividend date may be worth investigating further... Apart from that, it's worthwhile mentioning that financial spread betting is officially recognised by HMRC as gambling and therefore not currently [2015/16] subject to capital gains tax. This info is given in good faith and must not be relied upon when making any investment and/or trading decision(s). I hope this helps you make a fortune - if it does; then please remember me! Firstly it is completely legal for a company to buy its own shares, I don't believe it would be legal to do so secretly. It would also be very difficult to do that secretly.   So hypothetically we have a company Johnbbob Inc. It doesn't have any assets other than $100 in a bank account and there are 100 shares each owned by a different person. Each share would be worth $1. So the company decides to buy one share. Now there is $99 in the account and 99 shares, each share is still worth $1. So the company continues to buy shares until there is only one share left and $1 in the account. If the company buys that last share it will no longer have any assets and will cease to exist, effectively dissolving the company.  TL:DR it is called dissolving the company or dissolution and it happens fairly often with limited liability corporations. Probably not. If you were at a small company and asked such a question, you'd get advice and links to erisa or other case law, etc.  it's safe to say that a Fortune 500 company such as IBM is going to have their facts in order, and not going to run afoul of the rules in these cases (vesting rules and takeover of other company).  I was in a company that cancelled its pension program. Those of us with the required years got the option of a lump sum payout, those with less than 5 years had no vested value and got nothing. One month longer employment, in the case of a particular coworker, would have given him a lump sum worth nearly 6 months pay. That's up to you. If you instruct your broker to sell shares purchased in specific lots, they can do that -- but doing so requires that you and/or they track specific fractional lots forever afterwards so you know what is still there to be sold. FIFO simplifies the bookkeeping. And I am not convinced selecting specific lots makes much difference; the government gets its share of your profits sooner or later. "There are several such ""lists."" The one that is maintained by the company is called the shareholder registry. That is a list that the company has given to it by the brokerage firms. It is a start, but not a full list, because many individual shareholders hold their stock with say Merrill Lynch, in ""street name"" or anonymously. A more useful list is the one of institutional ownership maintained by the SEC. Basically, ""large"" holders (of more than 5 percent of the stock) have to register their holdings with the SEC. More to the point, large holders of stocks, the Vanguards, Fidelitys, etc. over a certain size, have to file ALL their holdings of stock with the SEC. These are the people you want to contact if you want to start a proxy fight. The most comprehensive list is held by the Depositary Trust Company. People try to get that list only in rare instances."