The sources said eBay is still early in the process, but note there are "multiple" parties interested in buying StubHub.
Shares of eBay initially jumped 2.8% on the news. The stock has been on a tear this year, rallying more than 45%. It is also outperforming the S&P 500, which is up 19% in 2019.
The news comes after eBay announced a strategic portfolio review on March 1.
The stock later ended the normal session down 2%, but reversed to trade nearly 6% higher postmarket after the company reported better-than-expected earnings.
"We're making significant progress and actively reviewing the role and value of StubHub and Classifieds in our portfolio," eBay CEO Devin Wenig said on Wednesday's earnings call. He said the company is "focused on determining the best path forward to create shareholder value."
EBay has been under activist pressure this year after Elliott Management took a $1.4 billion stake in the company. Starboard Value, another activist investor, has also taken a stake in the company.
EBay declined to comment. The company is scheduled to report quarterly earnings after the close Wednesday.
People familiar with the matter added that Broadcom indicated in early conversations that it would be willing to pay $28.25 per share for Symantec, but that following due diligence knocked that figure down below $28.
Symantec had surged earlier this month after it was revealed that Broadcom was in advanced talks to acquire the security software vendor. Faber had reported the two sides were negotiating a price and had seen possible synergies of $1.5 billion.
Symantec shares dropped 12.8% to $22.30 on Monday.
Symantec has been dogged in recent years by management turnover and a softer core business as cloud security companies have captured enterprise market share and as newer companies offer ways to protect mobile devices.
Chipmaker Broadcom, in the middle of an acquisition sprint, bought CA Technologies for $19 billion last year and tried to purchase Qualcomm before the U.S. Department of Justice blocked the deal.
Even without Symantec, Broadcom has been working to acquire an infrastructure software company and has considered Tibco, three people familiar with the matter told CNBC earlier this month. Vista Equity Partners acquired Tibco for $4.3 billion in 2014.
Still, the acquisition of a software company could give Broadcom a needed boost as trade tensions hurt its core semiconductor business and its relationship with Chinese telecommunications giant Huawei. Broadcom cut its forecast for chip sales this year by $2 billion after Huawei was blacklisted in May from buying U.S. technologies.
Dish Network and T-Mobile have agreed to a divestiture deal that brings the wireless carrier a step closer to gaining government approval of its merger with Sprint, people familiar with the matter told CNBC's David Faber.
However, there are still issues the Department of Justice is actively focused on before it would allow a deal, the sources added.
While the corporations involved have agreed on some of the largest components of the divestiture deal, the government remains concerned that the agreement isn't enough to ensure Dish would represent meaningful competition following the $26 billion merger between Sprint and T-Mobile.
Howard Hughes Corp., an owner, manager and developer of different types of real estate throughout the U.S., has hired bankers at Centerview Partners to explore strategic alternatives that include a sale of the company, according to people familiar with the situation.
The company, a one time spinoff from General Growth Properties, has been struggling to command a valuation that the board, led by its Chairman Bill Ackman, feels is appropriate for a company with its collection of assets and performance metrics.
People familiar with the board's thinking say it is unclear the company is well suited to the public markets because — unlike most other real estate companies — it is not a REIT, but a C-Corp and has a diverse collection of assets that does not lend itself to the recurring and predictable cash flows real estate investors may be looking for.
The company is both an owner of land, such as 60 acres of beach front in Honolulu, and a developer of residential communities, such as the Woodlands in Houston and commercial developments such as the South Street Seaport, only a few blocks east of the New York Stock Exchange in downtown Manhattan.
The long-anticipated talks between the two companies controlled by the Redstone family's National Amusements are expected to begin in mid-June, though discussions could begin even sooner, the sources said. Viacom CEO Robert Bakish would likely run the combined entity.
Though no talks have occurred, Shari Redstone, vice chairwoman of CBS and Viacom, has long been in favor of marrying the two as the former looks to bulk up its balance sheet. The added size would likely help CBS compete for National Football League broadcast rights against big technology companies like Amazon and Facebook.
National Amusements has twice tried but failed to combine the media companies. Should the tie-up ultimately occur, National Amusements would likely pivot to a second deal, people familiar with the matter told CNBC earlier this year.
Discovery Communications, for one, was interested in selling to CBS or a combined CBS-Viacom entity, two people familiar with the matter told CNBC in January. The company is also expected to continue talks to acquire premium entertainment network Starz from Lions Gate, CNBC reported last week.
CBS' search for scale comes as big media faces continued hikes to carriage fees, making it more difficult for them as viewers ditch cable and satellite TV subscriptions in favor of over-the-top and streaming options.
Anadarko Petroleum's board of directors is likely to determine on Monday that Occidental Petroleum's buyout offer is superior to the agreement the board reached last month to sell Anadarko to Chevron, sources tell CNBC's David Faber.
The decision would flip the momentum of the bidding war in Occidental's favor and put pressure on Chevron to sweeten its $33 billion offer.
Occidental has taken several steps to outmatch the much larger Chevron since launching its $38 billion rival offer nearly two weeks ago. On Sunday, Occidental revised its bid, offering to purchase Anadarko for 78% cash and 22% stock, compared with its earlier 50-50 cash-and-stock proposal.
Increasing the cash component of the deal means Occidental will not have to hold a shareholder vote on the acquisition, making it more certain that the driller could complete the deal.
Occidental was able to offer more cash after securing a $10 billion preferred stock investment from Warren Buffett's Berkshire Hathaway. Occidental also inked a deal to sell Anadarko's African oil and natural gas assets to French oil major Total for $8.8 billion, which would also fund the cash component of the acquisition.
If Anadarko's board does deem Occidental's bid superior, Chevron will have four days to put another offer on the table. Anadarko would have to pay Chevron a $1 billion breakup fee if its board ultimately chooses Occidental's offer.
Shares of Occidental initially fell following Faber's report, but were last up more than 1.6% after the driller announced first quarter earnings that beat Wall Street's expectations. Chevron's stock price was up about 1.1%.
Anadarko's stock price spiked nearly $3 per share, or about 4%. The jump may signal the market expects Chevron to counter Occidental's revised offer.
Anadarko did not return a request for comment. A spokesperson for Chevron referred inquiries to Anadarko.