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Home»Business & Economy»RFK policies wipe billions of dollars off biotech giant’s value
Business & Economy

RFK policies wipe billions of dollars off biotech giant’s value

info@thewitness.com.auBy info@thewitness.com.auFebruary 11, 2026No Comments5 Mins Read
RFK policies wipe billions of dollars off biotech giant’s value
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Colin Kruger

Updated February 11, 2026 — 4:54pm,first published 12:01pm

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The worst US flu season in decades did not shield one of Australia’s largest companies, biotechnology firm CSL, from another brutal market response as vaccine scepticism from Trump administration Health Secretary Robert F. Kennedy Jr continued to reduce demand for its jabs.

The reduced demand is one of the key issues that has halved CSL’s valuation since 2023 to as little as $73 billion on Wednesday. The group shocked investors by dumping its chief executive, then releasing December half-year results that fell short of market estimates and announcing $1.5 billion in writedowns, all within the space of 24 hours.

US Health Secretary Robert F. Kennedy Jr: Having an anti-vaxxer in charge of America’s health system has been one of the factors hitting CSL’s performance. Aresna Villanueva

CSL shares plunged by as much as 12 per cent to an eight-year low of $150.16 after the company released accounts that showed an 81 per cent drop in first-half profit, and as its chairman and interim chief executive sought to explain its abrupt change in leadership.

The company, which began life as a Commonwealth-owned laboratory and became one of the Australian stock exchange’s success stories through its blood plasma products and vaccine businesses, has also been hurt by regulatory changes in China.

Net profit after tax fell to $US401 million ($566 million) for the December half year, hit by restructuring costs from CSL’s transformation announced last year and $US1.1 billion ($1.5 billion) worth of asset writedowns on different parts of its global business, including its vaccine division.

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President Trump and Robert F. Kennedy at a Make America Healthy Again event in May.

Shares had already fallen by 5 per cent on Tuesday afternoon after it botched the announcement that chief executive Dr Paul McKenzie was retiring with immediate effect that day. The stock was not in a trading halt when the announcement was made and dropped quickly amid chaotic trading.

CSL shares closed 4.6 per cent lower at $163.44 on Wednesday, equating to an almost $4 billion hit to its market value.

“The results we’re presenting today represent a step in a broader transformation of CSL with the objective of delivering enhanced growth, profitability and shareholder returns,” CSL’s interim chief executive, Gordon Naylor, said on Wednesday.

He emphasised that his appointment would not be a passive one, and he would continue to drive the changes announced last year to cut up to 15 per cent of the CSL workforce and rationalise its research and development centres. CSL had planned to spin off its vaccine business Seqirus but withdrew that after vaccination rates in the US plunged following Kennedy’s appointment.

Chairman Dr Brian McNamee told investors in a late call on Tuesday that the company had a sense of urgency as it looked to improve its performance, and indicated McKenzie was not driving the change quickly enough.

“When the board sat down recently and looked at our business and thought about where we need to go in the future, we recognised he didn’t have the skills that we wanted for the future,” McNamee told analysts.

He also emphasised that the board was not happy with the performance of the group.

CSL shares dropped significantly last year, as investors were underwhelmed with its general performance, spooked by anti-vaxxer sentiment in its large US market, and the spectre of American tariffs on pharmaceutical imports.

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Outgoing CSL boss Paul McKenzie.

McNamee said the double-digit decline in US vaccination rates was a shock to the group, given the statistics had already been falling for two years. CSL is yet to see a bottom to vaccination rates.

CSL said in its results announcement that the writedown of its vaccines division was caused by a hit to the value of its coronavirus vaccine technology “driven by declining COVID disease burden and more onerous US regulatory requirements”.

On Wednesday, CSL indicated its US vaccine business was expected to decline further this year despite vaccination rates in most markets recovering to pre-pandemic levels. Under Kennedy, the US Centres for Disease Control and Prevention now no longer recommend vaccinating children against the flu.

Despite another brutal flu season, US immunisation rates will show a low to mid-single digit decline this season, according to CSL.

“Last year marked a 15-year high in influenza disease, and is currently trending to be an equally bad or even worse flu season … sadly, paediatric deaths are again on the rise, with the overwhelming majority of those deaths occurring in children who are either under or unvaccinated,” Dave Ross, head of the Seqirus division, told analysts and investors.

“As I’ve stated before, the science and the data will ultimately prevail. The public health consequences of influenza are just too big to ignore,” Ross said.

China has also hurt CSL because it has changed its rules to allow a plant-based version of a blood plasma product called albumin to be partially used in place of a traditional human-based equivalent produced by CSL, leading to a 27 per cent drop in its exports to the country.

The Business Briefing newsletter delivers major stories, exclusive coverage and expert opinion. Sign up to get it every weekday morning.

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Colin KrugerColin Kruger is a senior business reporter for the Sydney Morning Herald and The Age.Connect via email.

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