They are also investigating whether his money management firm, Harbinger Capital Partners, gave preferential treatment to certain clients.
The S.E.C. sued Mr. Falcone and his hedge fund firm, Harbinger Capital Partners, in June 2012, asserting that the "charges read like the final exam in a graduate school course in how to operate a hedge fund unlawfully".
"The decline was primarily due to a conservative adjustment in the fund's holdings of LightSquared, to be consistent with the results of work done by the Fund's third party valuation firm," a Harbinger representative said in a statement.
The firm's main Harbinger Capital Partners fund has fared poorly this year, falling some 15 percent.
Spectrum Brands on Wednesday said it would sell its pet supply business to Salton in a deal worth up to $915 million, with financing from private equity firm and hedge fund Harbinger Capital Partners.
Andrew Heiberger, president of the Citi Habitats brokerage firm, said that he saw a harbinger of good news in decreasing vacancy rates, but that prices remained where they had been in the spring.
The Tasty Baking land option reportedly would not include a nearby facility for its Tastykake brand, but some fear the real-estate deal might be the harbinger of the bakery firm fleeing the city — and taking hundreds of jobs with it.
The notices were also sent to Omar Asali, Harbinger's president, and Robin Roger, the firm's general counsel.
In response, Willkie Farr & Gallagher, the firm representing SP Special Opportunities, issued a statement saying: "The Harbinger complaint is without merit and is full of mischaracterizations and factual inaccuracies.
In its approach to The Times, Harbinger has hired a proxy solicitation firm, but several investors said they had not heard directly from the hedge funds.
The New York Times Company said Friday that it was interviewing the candidates proposed by Harbinger Capital, including Scott Galloway, founder of the activist investment firm Firebrand Partners; James A. Kohlberg, a co-founder of the venture firm Kohlberg & Company; Allen Morgan, managing partner of the Silicon Valley venture fund Mayfield Fund; and Gregory Shove, a former AOL executive.
