Small Cap Stock Movers: USCR, ATOS, ACIU, MGNX

US Concrete Inc (NASDAQ: USCR) jumped 29% to $73.78 as the company has been agreed to be acquired by Vulcan Materials (VMC) for $74.00/share in cash, representing a total equity value of $1.294 bln. The transaction has been unanimously approved by the boards of both companies and is expected to close in the second half of 2021. At two-month highs.

Atossa Therapeutics Inc (NASDAQ: ATOS) continued strength sees the stock rise to new two-year highs, now up approx. +79% month-to-date; co-announced that it will hold a webinar on June 9 to release and discuss final data from its Phase 2 study of Endoxifen administered to breast cancer patients prior to surgery. The stock is up 31% to $6.04 on hefty volume.

AC Immune SA (NASDAQ: ACIU) spikes to its highest levels since February on heavy volume; various names active in developing therapies for Alzheimer’s disease see volatility following the announcement that the FDA has granted accelerated approval to Biogen (BIIB) and Eisai’s (ESALY) ADUHELM for Alzheimer’s disease treatment. The stock gained 26% to $7.91.

MacroGenics Inc (NASDAQ: MGNX) Continued pullback; the stock has now moved lower by approx. 26% over the past week, reaching three-month lows. Among recent items, co was scheduled to present preliminary clinical results from its Phase 1 study of MGC018 at the ASCO Annual Meeting. The stock is now down by 13% to $23.50.