One can research ownership info on M*. Each company's page has an "Ownership" tab, e.g.
https://www.morningstar.com/stocks/xnys/gme/ownershipIn addition to showing individual funds and fund complexes/institutions holding the largest number of shares, one can find the funds with the highest concentration of shares.
Theoretically an institution with a large number of shares can move the stock price, but this assumes it has the flexibility to do so (i.e. the shares are not in index funds with stringent constraints). What matters to fund investors is the ownership concentration in funds they own.
For example, SPDR S&P Retail ETF XRT has
19.34% of its assets in GME (per M*). According to the
fund's web page, as of January 29th, that was
19.47% of the fund.
What Schwab Fundamental Large Company ETF FNDX is doing with 2&frac
12;% (per M*) of its portfolio in GameStop is beyond me. I guess one has to read index providers' definitions carefully.
According to Schwab, as of Jan 28, the fund's
1&frac
12;% allocation to GME was its 5th largest, nestled between JPMorgan Chase (JPM) and AT&T (T).
Reuters may have confused Lipper data regarding two different Fidelity funds that are clones of each other. Fidelity
Series Intrinsic Opportunities FDMLX is a $
13.7B fund, while Fidelity
Flex Intrinsic Opportunities FFNPX is a tiny $36M fund.
https://www.reuters.com/article/us-retail-trading-funds-idUSKBN29X0LZ As of their latest quarterly reports (posted Dec 29, 2020), the
Flex fund did have 0.639% of its assets in GME, but in such a tiny fund that amounted to nothing ($
16
1K). The larger Series fund held 44x as much stock, but that constituted
0.59% of the fund. Close, the funds are clones, but not the same.
The Fidelity Series funds are for use by other Fidelity funds. So even the small 0.59% ownership is further diluted by its inclusion in other funds.
The Intrinsic Opportunities funds (both of them) are managed by Tillinghast. FLPSX's position in GME amounts to just 0.09% of the fund, as of its latest quarterly report.