Updated from July 17 with additional information. 

FedEx Corp. (FDX - Get Report) is the latest victim of the Petya cyber attacks to tell investors to expect a financial hit, following a similar warning from snack-maker Mondelez (MDLZ - Get Report) earlier in July.

"We do not have cyber or other insurance in place that covers this attack" that hit the global information systems of its TNT Express unit, FedEx said on July 17. "Although we cannot currently quantify the amounts, we have experienced loss of revenue due to decreased volumes at TNT and incremental costs associated with the implementation of contingency plans and the remediation of affected systems."

Meanwhile, Reckitt-Benckiser (RBGLY) reported second-quarter earnings on July 24 and confirmed its revenues took a hit in the second quarter from the cyberattacks. The company said its full year revenue target was adjusted to grow 2% from 2016, compared to a previous forecast of 3%.

As a refresher, Petya flashed a message of "Ooops, your important files are encrypted" on computer monitors as it crippled business systems from Ukraine to Asia and the Americas on June 27.

When FedEx acknowledged on June 28 that Petya "significantly affected" worldwide operations of TNT Express, the company's shares were halted on the New York Stock Exchange.

Investors had a heads-up that the Memphis, Tenn., delivery company could feel some financial pain. FedEx told investors on July 6 that it could not "measure the financial impact of this service disruption at this time, but it could be material," and stating that TNT had made "significant progress in resuming full services and bringing critical systems back online."

More detail should come on Sept. 19, when the company reports fiscal first-quarter results.

Meanwhile, on July 6, Mondelez told investors that the Petya attacks would hurt its top line. 

The maker of Oreo cookies, Trident gum and Cadbury chocolates, told investors that it expects a 3% hit to second quarter sales from the attacks, which disrupted its invoicing and shipping systems in the last four days of the period. 

Pharmaceutical giant Merck & Co. (MRK - Get Report)  shut down systems after Petya compromised its networks. The Kenilworth, NJ, company reported on June 30 that it had made "good progress" in its recovery and that it has "no indication that the company's data have been compromised."

Forward-Looking Statement: https://t.co/hwO3qsSG9m pic.twitter.com/LOpDfc8h4M

— Merck (@Merck) June 30, 2017

Merck reports second-quarter earnings on July 28. A spokesperson said Merck does not "expect to see any appreciable impact on second quarter results," in an emailed statement. 

British advertising and communications giant WPP plc (WPPGY) said Petya hit "a number of" its units on the day of the attacks. On July 6 WPP tweeted that IBM Corp. (IBM - Get Report) had helped it "get back on track" but did not disclose the financial impact. 

pic.twitter.com/MpuA95DFa4

— WPP (@WPP) July 6, 2017

The company reports mid-year results in August, and a spokesperson said via email that WPP's units are preparing their monthly reports on schedule.

"We have kept stakeholders informed and issued several statements about the impact of the malware attack on our operations and our response to it," the spokesperson wrote. "Our focus has been on restoring normal service within those of our companies affected and, at this stage, it is not possible to provide any further information."

Petya also hit a unit of BNP Paribas SA (BNPQY) . The Parisian bank, which trades over the counter and reports earnings on July 28.

The Russian steel and mining company Evraz plc (EVRZF)  is another prominent Petya victim that trades over the counter. 

Representatives of BNP Paribas and Evraz did not immediately respond to queries Friday morning.

Other high-profile victims of Petya that do not trade in the U.S. include Russian energy group Rosneft, Danish shipping company AP Moller-Maersk and French multinational construction and materials producer Saint-Gobain.