Hedge fund Shamrock Activist Value believes that the portable-storage provider should make a number of changes, including improving its capital allocation; concentrating on its core businesses; reviewing strategic alternatives for improving returns; increasing transparency; strengthening the link between executive compensation and company performance, and enhancing corporate governance. The firm, which manages investments on behalf of Roy E. Disney, plans to discuss its ideas with other Mobile Mini shareholders. Among other corporate-governance changes, Shamrock would like Mobile Mini to declassify its board and implement a majority voting standard for uncontested director elections. It also wants Mobile Mini's "poison pill" to expire as scheduled at the end of the year and for any future "poison pills" to be subject to shareholder approval. Shamrock might seek representation on the board. Shamrock owns 2,260,917 shares (6.37% of the total outstanding). The firm paid about $35.3 million, or $15.61 per share, for its holding.

Leading Investment & Securities, a Korean securities firm, owns 5,070,423 shares (9.9%), bought at $1.37 a share in a Sept. 4 private placement. The firm has agreed to purchase an additional 3,009,189 shares at $1.37 each. That would give it 8,079,612 shares (14.9%).

Western Investments increased its stake to 742,781 shares (7.2%), by buying 107,271 from July 28 to Sept. 11 at prices ranging from $12.87 to $13.82.

Mario Gabelli's Gamco Investors (GBL) boosted its holdings to 5,532,427 shares (9.64%), by purchasing 570,088 from July 16 through Sept. 15 at $27.31 per share. Gamco's filing relates solely to Viacom's Class A shares.

Harbinger Capital decreased its holdings to 1,141,419 shares (5.4%), by selling 1,909,810 from Sept. 8 to Sept. 10 at $26.27 apiece.

Equity One (EQY) sold all of its 1,800,000 shares from Sept. 9 to Sept. 11 at $8.50 per share. Equity One had been Ramco's largest shareholder. It sold the bulk of its holdings a day after Ramco-Gershenson had conducted a secondary offering.

Microchip Technology (MCHP) decreased its holdings to 554,100 shares (4.3%), by selling 135,399 from Sept. 11 to Sept. 15 at $25.64 to $27.08 per share.

Ramius Capital filed a boilerplate 13D stating no current activist intentions. Despite filing a boilerplate 13D, Ramius certainly will meet with management and will take an active role in enhancing shareholder value.