(For faster updates on individual market-movers, Eikon users please use search string "STXBZ US"; for the Day Ahead newsletter, link.reuters.com/mex49s; for the Morning News Call newsletter, link.reuters.com/nex49s) U.S. stocks were lower at the open on Monday after the S&P 500 and the Dow recorded their first four-day winning streak in about five months last week. The Dow Jones industrial average was up 0.02 percent at 17,010.33, the S&P 500 was down 0.34 percent at 1,993.29 and the Nasdaq Composite was down 0.47 percent at 4,694.989.
** CELLDEX THERAPEUTICS INC, $3.9292, -52.02 pct
The drug developer said it would discontinue a late-stage study of its brain cancer vaccine after an independent interim analysis suggested the therapy might not show a statistically significant difference in survival rates compared with chemotherapy.
** VANGUARD NATURAL RESOURCES LLC, $2.171, -16.82 pct
The oil and natural gas producer suspended distributions on its common and preferred units on Friday. FBR Capital Markets downgraded the stock to "market perform" from "outperform", saying the suspension was likely influenced by the company's upcoming borrowing base redetermination.
** BIOCRYST PHARMACEUTICALS INC, $3.0601, +18.61 pct
The drug developer said a dose of its experimental antiviral drug improved survival rates in mice infected with the Zika virus in a preclinical study.
** ICONIX BRAND GROUP INC, $9.57, +13.39 pct
The Umbro and Lee Cooper brands owner announced a new five-year $300 million term loan credit facility provided by credit funds managed by affiliates of Fortress Investment Group LLC.
** SEADRILL LTD, $5.29, -11.39 pct
The rig firm repeated on Monday it would present a refinancing plan for its $10 billion debt during the second quarter.
** PIER 1 IMPORTS INC, $6.42, +17.15 pct
The home decor and furniture importer estimated fourth-quarter sales above the average analyst expectation, helped by promotions and clearance sales.
** BARRICK GOLD CORP, $14.54, +5.98 pct
** YAMANA GOLD INC, $3.25, +5.18 pct
** ANGLOGOLD ASHANTI LTD, $13.59, +5.19 pct
** SIBANYE GOLD LTD, $14.46, +3.80 pct
** GOLD FIELDS LTD, $4.325, +5.49 pct
** DRDGOLD LTD, $3.93, +2.88 pct
U.S.-listed shares of gold miners rose as gold soared to just below last week's 13-month high.
** YAHOO INC, $33.81, -0.15 pct
Starboard Value LP, the activist hedge fund leading an investor revolt against Yahoo's management team, will push for control of the company's board in talks scheduled this week, according to people familiar with the matter. (Compiled by Manish Parashar in Bengaluru; Editing by Maju Samuel)