Buying a mutual fund based on a single stock doesn't amount to buying shares of that particular company, especially when you're talking about a holding that doesn't factor into the top five positions, which is the case with all of the funds we're about to mention here.

Additionally, public mutual funds disclose their holdings on a quarterly basis, meaning any activity since the end of 2011 and now remains unknown until the end of this quarter; it's entirely possible that all holdings in Facebook could have been sold between the last disclosure and now.

The Fidelity Advisor New Insights fund contains private shares of Facebook as of the most recent disclosure of holdings.

Similarly, two funds at T. Rowe Price have Facebook shares:  New Horizons and Global Technology.

It's been speculated that Facebook shares may lie in two funds at Morgan Stanley: Focus Growth and Capital Opportunities.

Again, because of disclosure timing, it's entirely possible that all of the funds might have unloaded their Facebook holdings by now.

Readers, does news of the forthcoming initial public offering registration make you want to invest in mutual funds that own Facebook stakes, albeit tiny ones?

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