IWM (iShares Russell 2000 ETF) owned by Blackrock holds 2.62M shares of LWLG and it makes up .03% of the ETF. Every Russell 2000 ETF that seeks to simply mirror the index will be similarly weighted.
Well, look at the link below. Blackrock owns 7.2 mil shares of Lightwave Logic, not just 2.62M as you posted for the iShares Russell 2000 ETF. They own almost 3x that amount. They've done their homework, whereas you have not.
File Date Form Investor Prev Shares Latest Shares ? Shares (Percent) Ownership (Percent) ? Ownership (Percent) 2023-02-09 13G VANGUARD GROUP INC 6,579,011 5.83 2023-02-03 13G BlackRock Inc. 7,232,043 6.40