When one investor sells existing shares to another, the company normally receives none of the money. A falling share price does not, by itself, drain the company’s bank account.

The iPhone analogy misses the ownership involved: a share is a stake in the company, so the buyer and seller are trading ownership of it. Shares carry claims on the company’s assets and profits, and usually voting rights. [Investor.gov’s explanation of stock](https://www.investor.gov/introduction-investing/investing-basics/glossary/stock)

Companies have several reasons to care about the price:

- A company may want to issue more shares later. To raise $100 million at $100 per share, it would need to sell 1 million new shares. At $10, it would need to sell 10 million. Raising the same amount at the lower price means giving up more ownership and diluting existing shareholders more.

- Companies can pay for acquisitions with their own shares. A higher valuation generally lets them offer the same purchase value with fewer shares.

- Many employees receive shares or stock options. A falling price can reduce the value of that compensation, making recruitment and retention harder. Managers who own stock also see their personal wealth fall. Garmin, for example, uses shares for options, restricted stock awards, and its employee share purchase plan. [Garmin annual report](https://www.sec.gov/Archives/edgar/data/1121788/000095017025057074/grmn-ars-20241228.pdf)

- Shareholders can vote to elect directors, who oversee management. Dissatisfied owners can push for changes, and a low valuation can make acquiring control more affordable, although voting structures and other protections matter. [Investor.gov’s explanation of shareholder voting](https://www.investor.gov/shareholder-voting)

The company’s cash and its owners’ wealth are separate. Management runs the business on behalf of its owners, so it has reason to care about the value of their investment even when no cash enters or leaves the company.

Your intuition holds in a limited case. A financially independent company that needs no new equity, makes no acquisitions paid for with shares, and pays no stock compensation could feel relatively little immediate operational effect from price fluctuations. Share price still matters, though individual daily movements may have little consequence for the business.