A group including Obrem Capital Management wants Micrel to call a special shareholder meeting and rescind recently adopted shareholder-rights plans. Obrem wants the chip maker to boost its board to six members from five, and to elect Bill Bradford, Keith R. Gollust, Eric Gomberg, Ben Goren, Keith M. Kolerus and Andrew Rechtschaffen to fill the vacancies created by the removal of the five current directors. Obrem says the rights plan doesn't maximize or enhance shareholder value. The Obrem group holds 10,690,690 shares (14.9% of the total outstanding).

Doucet Capital wants the company to explore strategic alternatives, because it believes that the shares are undervalued. Doucet may also talk with Dallas-based RF Monolithics about possible changes to its board and management. Doucet Capital has reported ownership of 475,743 shares (5.06%).

Shareholder Patricia L. Childress plans to nominate herself for election to the company's board. Childress informed Sierra of her intention to nominate herself for election to the board in December. 2007. To secure the position, she recently concluded that a solicitation of proxies was necessary, and intends to solicit proxies through the distribution of her own proxy statement. Childress reported ownership of 665,615 shares (7%).

Luther King Capital Management may consider making a competing acquisition proposal for IDGR. Last month, Industrial Distribution agreed to be acquired for $10.30 a share by an affiliate of Platinum Equity Advisors, in a deal worth about $113 million. LKCM reviewed the "adequacy of the offer" made by Platinum, particularly in light of significant margin expansion it believes IDGR will realize in future periods from management's recently implemented information-technology-infrastructure enhancements; strategic-pricing initiatives; and ongoing facility rationalization. Based on its review, LKCM said that it's considering strategic plans and proposals that, if effected, could result in a competing acquisition proposal. LKCM owns about 1.43 million shares (14.9%).

Sellers Capital reported ownership of 1,947,386 shares (6.46%), after buying 1,317,840 from Jan. 22 to March 19 at $4.49 to $5.95 each.

Harbinger Capital Partners raised its stake to 27,222,634 million shares (19.04%), after buying 447,000 on March 18 and 19 at $18.89 a share.

David Nierenberg's D3 Family Funds raised its holdings to about 2.59 million shares (8.5%), from the 2.28 million (6.9%) reported on March 10.

SCSF Equities increased its stake to about 1.23 million shares (7.3%) from the 992,900 (5.9%) that were reported in early February.