Mario Gabelli acquired 3.59 Thousand BlackRock Institutional Trust Company N.A. - iShares Russell 1000 Growth ETF shares worth $1.16 Million. That's 0.01% of their equity portfolio (536th largest holding). The investor owns 44.67% of the outstanding BlackRock Institutional Trust Company N.A. - iShares Russell 1000 Growth ETF stock. Mario Gabelli started to build up the position in BlackRock Institutional Trust Company N.A. - iShares Russell 1000 Growth ETF in Q2 2021 and continued to invest until Q2 2022. Since then they sold 21.5 Thousand shares. The stake costed the investor $934 Thousand, netting the investor a gain of 24% so far.