Two years ago, Senior Health Insurance Co. of Pennsylvania hired an investment adviser that swiftly invested tens of millions of dollars of the insurer's money with hedge-fund firm Platinum Partners and bought a series of hard-to-sell assets from Platinum's funds.

What the insurer wasn't told was that the adviser, Beechwood Re, was more than 40%-owned by family members of Platinum's co-founders through trusts and by a former Platinum staffer, people familiar with the matter said.

Platinum now is under a federal fraud investigation, and Senior Health Insurance of Pennsylvania, known as SHIP, is working to get rid of many Platinum-related assets, SHIP's chief executive says.

The CEO of Beechwood, Mark Feuer, said he didn't tell SHIP and other clients about his firm's ties to Platinum because the ownership stakes were passive and didn't come with a management role. A Beechwood spokesman later said the firm "believes in the importance of all appropriate disclosures and at all times has acted in the best of interest of its clients."

As The Wall Street Journal reported in July, Platinum, which specializes in exotic investments such as loans to struggling companies, is being investigated by federal prosecutors in New York. One of its founders, Murray Huberfeld, has pleaded not guilty to conspiracy and wire fraud in connection with an alleged bribe of a union official for investments. Platinum has suspended redemptions from its hedge funds and announced plans to liquidate them. It has said it is cooperating with the investigation.

Platinum's fund investors have been largely concentrated in a tight-knit group of observant Jewish businesspeople. Exposure to Platinum reached a far wider realm as a result of Beechwood's having directed insurance-client money into Platinum funds and related investments.

SHIP's Platinum-linked investments, which have included loans to Platinum itself, exceed the insurer's shrinking $35 million capital surplus, or assets minus liabilities. A long-term-care insurer, SHIP counts on its investments to help cover the cost of benefits for elderly policyholders.

Both Beechwood and SHIP said investments are supported by independent ratings and backed by collateral. They said Beechwood, not SHIP, would bear the risk on them. SHIP said its capital levels will remain adequate.

Since early 2014, Beechwood has put more than $200 million of client money in Platinum-linked investments, according to public filings and people familiar with the matter.

Beechwood said all transactions related to Platinum since late 2014 have been "in the context of a restructuring away from Platinum," a process "nearly complete." It didn't provide specific details of the restructuring.

Beechwood said in August that transactions with Platinum "represent under 10% of our well-capitalized $2.4 billion business and should be down to under 1% by the end of the year."

Beechwood was founded in 2013 by two former Merrill Lynch operations executives, Mr. Feuer and Scott Taylor, partly to help insurers invest their cash.

Mr. Feuer had long known some at Platinum, whose executives were active in the same religious community on New York's Long Island. He and Mr. Huberfeld served at a charity together, and Mr. Feuer's sister went to the same school as Beechwood co-founder Mark Nordlicht, according to people familiar with the matter.

For years, Platinum had little success attracting insurance-company money and considered starting a reinsurer to do so, people familiar with the situation said. It didn't proceed, but after Messrs. Feuer and Taylor opened Beechwood Re, more than 40% of Beechwood's equity was held by family-member trusts of Platinum's founders as well as by a former Platinum employee.

That employee, David Levy, who is a nephew of Mr. Huberfeld, became Beechwood's first chief investment officer. He later returned to Platinum. Then another Platinum employee became Beechwood's second chief investment officer in 2015.

In other ties, Beechwood hired family members of Platinum's owners, and it gave Mr. Huberfeld access to an office at its New York quarters in 2015.

Mr. Feuer said opening Beechwood was his and Mr. Taylor's own idea, and the Platinum-linked owners were bought out this summer or earlier. He said Beechwood now is owned by himself, Mr. Taylor and an investor he wouldn't name but who he said has no financial interest in Platinum.

Before family trusts of Mr. Huberfeld and Mr. Nordlicht were bought out, they were kept updated. Less than 10 minutes after Beechwood received word that money for its first transaction had arrived, Beechwood's founders notified Messrs. Nordlicht and Huberfeld, documents reviewed by the Journal show.

A spokesman for Beechwood, David Goldin, said, "Everyone close to minority investors was notified at the same time."

The initial Beechwood transaction, in February 2014, was a reinsurance deal with CNO Financial Group Inc.—an insurer from which SHIP was spun out—to manage about $500 million of long-term-care policies.

CNO audited $126 million of that total, it said in a filing last month, and believes "some or all of these assets may bear some connection to Platinum" or to parties with a link to Platinum.

CNO's stock is down around 10% since then. Fitch Ratings placed CNO on a negative ratings watch, on the risk it could have to cover any Beechwood losses.

CNO declined to comment. Speaking for Beechwood, Mr. Goldin said, "We have no reason to believe there have been or will be any shortfalls in the reinsurance trusts."

The Platinum-related investments Beechwood chose for clients came in several forms: investments in hedge funds, asset purchases from Platinum and loans to the firm or companies linked to it. One such company was Implant Sciences Corp., an explosives-detection firm that trades as a penny stock.

In winning SHIP, the Pennsylvania insurer, as a client, Beechwood guaranteed a 5.85% annual return, a steep hurdle at a time of low interest rates.

Beechwood executives said many clients asked it to find investments that could achieve higher returns—one reason it chose Platinum-related investments. Another reason, said Mr. Feuer, was that Beechwood's first chief investment officer, having come from Platinum, was familiar with its positions.

Mr. Goldin said Beechwood determines valuations for assets, and a third-party firm "separately provides an independent view."

SHIP hasn't marked down any of its Platinum-related investments, said its CEO, Brian Wegner.

In the first quarter, after Platinum's flagship fund said it wouldn't immediately be able to meet redemption requests, filings show Beechwood directed about $8 million more of SHIP's money into Platinum-related investments. In the second quarter, Beechwood directed that around $28 million of such investments be cashed out. Mr. Wegner said SHIP "was not aware of the liquidity issues faced by Platinum" at the time those moves were made.

SHIP, which has more than $2 billion of assets overall, had $57 million invested in or lent to Platinum hedge funds at the end of last year.

Mr. Goldin said Beechwood aims to drop SHIP's investments in Platinum hedge funds to zero by year-end.

He said Beechwood set up a separate vehicle, funded by Beechwood's owners, to buy back clients' investments in Platinum's hedge funds. Other Platinum-related investments, including loans to the firm and companies close to it, are being repurchased, restructured or refinanced using Beechwood's own money, Mr. Goldin said.

Write to Rob Copeland at rob.copeland@wsj.com

(END) Dow Jones Newswires

September 16, 2016 01:15 ET (05:15 GMT)

Copyright (c) 2016 Dow Jones & Company, Inc.