Who do you think bought the dumped shares? The same institution that flooded the market.. They sold them to each other and they suffered no loss as it was just a swapping of shares.
What it did though was free up your shares at much lower than current market prices, which in turn, they scooped up. When the price action rebounded they start peddling the shares at "discounted prices" in comparision to the HOD but at a premium from what they picked them up at.
You lose, they still hold they're shares, and flipped the newly aquired shares for a profit.
That's how they make monkey and how you lose it when this SH*T happens. Crooks.