Illustration for: BlossomHill Prices Upsized $150M IPO, Debuts on Nasdaq

BlossomHill Prices Upsized $150M IPO, Debuts on Nasdaq

BlossomHill Therapeutics priced an upsized IPO at $16 a share for $150M and began trading on Nasdaq under BLSM, more than 50% above the $100M target Pulse flagged when the company first filed.

By the Numbers

$16.00/share
IPO price
$150M (upsized)
Gross proceeds
BLSM (Nasdaq)
Ticker
$100M
Original filing target
TC
By the IPO Desk
Edited by Trace Cohen · Early-stage VC & angel · Founder, New York Venture Partners
1 min read
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THE RUNDOWN

1

The deal grew roughly 50% between the August 3 filing target of about $100 million and the $150 million actually priced at $16 a share -- that gap, not the Nasdaq debut itself, is the measurable demand signal.

2

Underwriters hold a 30-day option on up to 1.4 million additional shares at the offering price, giving J.P. Morgan, Leerink and Guggenheim room to stabilize BLSM through exactly the stretch when early-trading volatility shows up.

3

BlossomHill is the third biotech in roughly a week to price at or above the top of its range, after Attovia Therapeutics and Braveheart Bio -- the clustering is the story, not any single company's book.

4

What the pricing does not reveal is the order book's composition: generalist growth funds versus biotech-specialist crossover buyers predicts how BLSM trades once the offering closes August 10 and stabilization support ends.

TC

The VC Read · Trace's Take

Trace Cohen

A 50% upsize between filing and pricing is real demand, not just a confident banker -- worth checking whether the order book was driven by generalist growth funds or biotech-specialist crossover investors, since that mix predicts how the stock trades once the lockup-adjacent volatility of the first few weeks passes. Three biotech IPOs pricing well in the same window is the pattern to watch, not any single name.

Analysis

BlossomHill Therapeutics priced an upsized initial public offering at $16.00 a share Thursday, raising $150 million in gross proceeds and upsizing from the roughly $100 million target Pulse covered when the company first filed on August 3, according to BioSpace. Shares began trading Friday on the Nasdaq Global Select Market under the ticker BLSM, with J.P. Morgan, Leerink Partners and Guggenheim Securities as lead book-runners.

What changed since the filing: the deal grew by roughly 50% between the initial paperwork and pricing, a sign of stronger-than-expected demand in a biotech IPO window that's been unusually active this summer -- Attovia Therapeutics and Braveheart Bio both priced Nasdaq offerings in the same week BlossomHill first filed. The upsize also comes with a 30-day option for underwriters to buy up to 1.4 million additional shares at the offering price, a standard overallotment structure that gives banks room to stabilize the stock in early trading.

The offering closes August 10. BlossomHill is now the third biotech name in roughly a week to price above or near the top of its range, a pattern that -- if it holds through the rest of August -- would argue the biotech IPO window investors have been calling fragile all year is, for now, still open.

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Key Sources

2 sources

Reported by BioSpace · Analysis by Value Add Pulse.

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