Yahoo is considering a acquisition offer of upwards of $1 billion for Tumblr, as first reported by AllThingsD. Tumblr has raised over $120 million in VC funding from Spark Capital, Union Square Ventures, Sequoia Capital, Greylock Partners, Insight Venture Partners, CrunchFund, The Chernin Group and DFJ Growth. www.tumblr.com
Telus Corp. (TSX: T) has agreed to acquire Mobilicity, a provider of mobile telecom solutions in Canada, for C$380 million. Quadrangle Group had owned Mobilicity, but the entire purchase price will be used to fulfill debt obligations. www.mobilicity.ca
Elan PLC (NYSE: ELN) is asking shareholders to reject a $5.7 billion takeover bid from Royalty Pharma, calling the offer “grossly inadequate.” www.elan.com
Floorplanner, a Dutch online CAD system for complex floor-plans, has acquired Mydeco3D, maker of a 3D room planner tool. No financial terms were disclosed. www.floorplanner.com
Tableau Software Inc., a Seattle-based provider of big data analytic and visualization tools, raised around $254 million in its IPO. The company priced 8.2 million shares at $31 per share (above revised $28-$30 per share range), and will trade on the NYSE under ticker symbol DATA. Goldman Sachs and Morgan Stanley served as lead underwriters. The company reports $1.6 million in net income on around $128 million in revenue for 2012, compared to $3.4 million in net income on $62 million in 2011 revenue. Tableau has raised VC funding from New Enterprise Associates (37.86% pre-IPO stake) and Meritech Capital Partners (6.41%), with NEA selling around one million shares via the IPO.www.tableausoftware.com
Marketo, a San Mateo, Calif.-based provider of revenue performance management solutions, raised around $79 million in its IPO. The company priced 6.1 million at $13 per share (high end of $11-$13 range), for an initial market cap of approximately $465 million. It will trade on the Nasdaq under ticker symbol MKTO, while Goldman Sachs and Credit Suisse served as lead underwriters. The company reports a $34 million net loss on around $58 million in revenue for 2012, compared to a $32 million net loss on $22 million in revenue for 2011. It has raised nearly $100 million in VC funding from InterWest Partners (35.5% pre-IPO stake), Storm Ventures(17.5%), Mayfield Fund (14.3%), Institutional Venture Partners (12.9%) and Battery Ventures(7.3%). www.marketo.com
PTC Therapeutics Inc., a South Plainfield, N.J.-based developer of drugs that target post-transcriptional control processes, has filed for an $85 million IPO. It plans to trade on the Nasdaq under ticker symbol PTCT, with J.P. Morgan and Credit Suisse serving as lead underwriters. The company reports a $26 million net loss on $34 million in revenue for 2012, compared to $30 million in net income on $105 million in revenue for 2011. The company has raised over $170 million in VC funding, from Credit Suisse First Boston (14.8% pre-IPO stake), HBM Healthcare Investments (12%), Vulcan Capital (9%), Brookside Capital Partners (7%), Celgene (7%), Delphi Ventures (6.3%), Novo A/S and The Column Group. www.ptcbio.com
William Lyon Homes, a Newport Beach, Calif.-based homebuilder in the Western U.S., raised $218 million in its IPO. The company priced 8.7 million Class A shares being at $25 per share (above $22-$24 range), and will trade on the NYSE under ticker symbol WLH. Credit Suisse and Citigroup served as lead underwriters. The company reports a $2.5 million Q1 2013 loss on around $80 million in revenue. www.lyonhomes.com
Kamada Ltd., an Israeli provider of plasma-derived protein therapeutics, has set its IPO terms to 5.58 million shares being offered at $10.75 per share ($369m estimated market cap). It plans to trade on the Nasdaq under ticker symbol KMDA, with Morgan Stanley and Jefferies serving as underwriters. The company already trades in Tel Aviv, and reports $260,000 in net income on around $72.6 million of revenue for 2012. www.kamada.com
UBIC, a Japan-based provider of Asian-language ediscovery solutions and services, raised $9 million in its IPO. The company priced 1.1 million shares at $8.38 per share, and will trade on the Nasdaq under ticker symbol UBIC. Significant shareholders include Focus Systems Corp. (10.51% pre-IPO stake) and Japan Trustee Services Bank (6.02%). www.ubicna.com
Sign up for Dan’s daily email newsletter on deals and deal-makers: GetTermSheet.com