Buyback Radar
Company reports

Halozyme Therapeutics

HALO

Halozyme Therapeutics has retired 21.7% of its shares since 2018, from 145,033,173 to 113,498,000.

21.7%retired since 2018
19.4%last 5 years
3.5%last 12 months
113Mshares today
Shares outstanding, 2006 to todaysplit adjusted, from SEC filings
145M shares, 2018113M2010201520202025
2006, 71,042,4022026-07-31, 113,498,000
A share bought in 2013
1.1× more of Halozyme Therapeutics today, without buying another share. It was one of 124,003,650 shares then. It is one of 113,498,000 now.
Every filing we read20 fiscal years, split adjusted
Fiscal yearDateShares outstandingFiling
20062007-02-2871,042,40210-Kcover page
20072008-03-0178,432,94910-Kcover page
20082009-02-2782,946,44910-Kcover page
20092010-03-0191,712,38110-Kcover page
20102010-12-31100,580,84910-K
20112012-03-01112,093,60110-K
20122013-02-25113,122,90010-K
20132014-02-24124,003,65010-K
20142015-02-24126,704,13510-K
20152016-02-22129,061,40110-K
20162017-02-22129,764,41510-K
20172018-02-13143,076,59010-K
20182019-02-14145,033,17310-K
20192020-02-14138,226,07010-K
20202021-02-17135,276,38010-K
20212022-02-14137,703,51010-K
20222023-02-14135,366,86210-K
20232024-02-12126,824,80010-K
20242025-02-11123,153,00010-K
20252026-02-10118,017,00010-K

Source: all 10-K filings of Halozyme Therapeutics on EDGAR. Download this series as CSV. Licence CC BY 4.0, credit Buyback Radar.

What the buybacks cost, fiscal 2019 to 2025cash flow statement against share count
$1.9Bspent on buybacks
27Mfewer shares outstanding
$63average price paid per share bought back
2.5%buyback yield, last fiscal year’s spend on today’s market value

Cash spent comes from the cash flow statement. Shares outstanding fell by less than the company bought, because part of every buyback only replaces shares handed to employees. Today’s price is $121.84.

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Halozyme Therapeutics buybacks, answered

Is Halozyme Therapeutics buying back its stock?

Yes. Halozyme Therapeutics has 3.5% fewer shares outstanding than twelve months ago, 113,498,000 as of July 31, 2026. Over five years the share count is down 19.4%.

How many shares has Halozyme Therapeutics bought back?

Net of every new share it issued, Halozyme Therapeutics has 31.5 million fewer shares than at its 2018 peak. That is 21.7% of the company. Since fiscal 2019 alone it bought back about 30.2 million shares, while the count fell by 24.7 million. The difference went to employees and other new shares.

How many shares does Halozyme Therapeutics have outstanding?

113,498,000 shares, as of July 31, 2026, from the cover page of its latest 10-Q. At the 2018 peak it had 145,033,173.

What do Halozyme Therapeutics' buybacks mean for a shareholder?

Each share is a bigger slice of the company. Someone who held Halozyme Therapeutics stock in 2018 owns 1.3 times as much of the business today without buying another share. Whether that was a good use of cash depends on the price paid.

How does Halozyme Therapeutics compare with other cannibal stocks?

Halozyme Therapeutics ranks No. 352 of 467 companies on Buyback Radar by share of the company retired since its peak. Close to it on the list: Acushnet (22.2%), Genuine Parts (22.0%), Trimas (21.5%), Old Republic International (21.5%).

Every answer is computed from Halozyme Therapeutics' own SEC filings and rebuilt every Monday. Latest count: 10-Q on EDGAR.

Superinvestors who own it

Richard PzenaPzena Investment Management4,049 shares, $317K, Q2 2026

From the latest 13F filings. All superinvestors.

Insider buying, last 12 months

No open-market purchases reported in the last 12 months.

The story

The numbers say what happened. The story says whether it can continue. We cover companies like Halozyme Therapeutics in depth on Cannibal Stocks.

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