NASDAQ:QDEL

Quidel Stock Insider Trading

Healthcare > Medical - Instruments & Supplies

Buy QDEL

*Your capital is at risk

$13.60

+0.310 (+2.33%)

At Close: Jun 03, 2026

Quidel Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 97.21. In total, the insiders bought 1.09M and sold 27.34K QDEL shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	97.21
● Buy	1.09M shares
● Sell	27.34K shares
83% Buy Activity Negligible or No Correlation
Buy Signal High Confidence Feb 13, 2026 Analysis Breakdown: Strongly supported by a very high Insider Power Score of 97.21. Confidence increased due to high data reliability score of 100. Supported by overwhelming buy-side pressure (83% buys).

Historical Insider Trades

Date	Type	Person	Role	Amount
May 15, 2026 Sell	Common Stock F-InKind	Blaser Brian J. President And CEO	CEO / President	10 252 Value: $105.8K
May 15, 2026 Buy	Restricted Stock Units M-Exempt	Blaser Brian J. President And CEO	CEO / President	20 759 Value: $214.2K
Apr 26, 2026 Buy	Restricted Stock Units M-Exempt	Mclellan Philip D. Chief Operations Officer	Officer	1 946 Value: $26.5K
Apr 26, 2026 Sell	Common Stock F-InKind	Mclellan Philip D. Chief Operations Officer	Officer	699 Value: $8K
Apr 26, 2026 Buy	Common Stock A-Award	Mclellan Philip D. Chief Operations Officer	Officer	1 946 Value: $26.5K
Apr 26, 2026 Buy	Common Stock A-Award	Hanson Bryan Michael EVP Global Port. Mgmt & Mkting	Officer	1 459 Value: $19.8K
Apr 26, 2026 Sell	Common Stock F-InKind	Hanson Bryan Michael EVP Global Port. Mgmt & Mkting	Officer	528 Value: $6K
Apr 26, 2026 Buy	Restricted Stock Units M-Exempt	Hanson Bryan Michael EVP Global Port. Mgmt & Mkting	Officer	1 459 Value: $19.8K
Apr 22, 2026 Sell	Common Stock F-InKind	Hanson Bryan Michael EVP Global Port. Mgmt & Mkting	Officer	1 269 Value: $15.1K
Apr 22, 2026 Buy	Restricted Stock Units M-Exempt	Hanson Bryan Michael EVP Global Port. Mgmt & Mkting	Officer	3 508 Value: $41.7K
Apr 22, 2026 Buy	Common Stock A-Award	Hanson Bryan Michael EVP Global Port. Mgmt & Mkting	Officer	3 508 Value: $41.7K
Apr 22, 2026 Buy	Restricted Stock Units M-Exempt	Mclellan Philip D. Chief Operations Officer	Officer	3 238 Value: $38.5K
Apr 22, 2026 Sell	Common Stock F-InKind	Mclellan Philip D. Chief Operations Officer	Officer	1 162 Value: $13.8K
Apr 22, 2026 Buy	Common Stock A-Award	Mclellan Philip D. Chief Operations Officer	Officer	3 238 Value: $38.5K
Apr 15, 2026 Buy	Non-Qualified Stock Options A-Award	Sisitsky Nathaniel Chief Legal Officer	Officer	73 434 Value: $1.28M
Apr 15, 2026 Buy	Restricted Stock Units A-Award	Sisitsky Nathaniel Chief Legal Officer	Officer	73 435 Value: $1.28M
Mar 28, 2026 Buy	Restricted Stock Units M-Exempt	Busky Joseph M. Chief Financial Officer	C-Suite Officer	4 925 Value: $67.0K
Mar 28, 2026 Sell	Common Stock F-InKind	Busky Joseph M. Chief Financial Officer	C-Suite Officer	1 519 Value: $22.5K
Mar 28, 2026 Buy	Common Stock A-Award	Busky Joseph M. Chief Financial Officer	C-Suite Officer	4 925 Value: $67.0K
Mar 23, 2026 Buy	No securities beneficially owned	Sisitsky Nathaniel Chief Legal Officer	Officer	0 Value: $0
Feb 13, 2026 Buy	Common Stock P-Purchase	Strobeck Matthew Director	Director	10 000 Value: $239.6K
Feb 13, 2026 Buy	Common Stock P-Purchase	Busky Joseph M. Chief Financial Officer	C-Suite Officer	3 370 Value: $79.7K
Feb 13, 2026 Buy	Common Stock P-Purchase	Blaser Brian J. President And CEO	CEO / President	10 540 Value: $248.7K
Feb 08, 2026 Buy	Restricted Stock Units M-Exempt	Busky Joseph M. Chief Financial Officer	C-Suite Officer	5 968 Value: $81.2K
Feb 08, 2026 Sell	Common Stock F-InKind	Busky Joseph M. Chief Financial Officer	C-Suite Officer	1 806 Value: $52.6K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT QUIDEL CORPORATION

QuidelOrtho Corporation provides various in vitro diagnostics products worldwide. The company's product portfolio covers a range of point-of-care tests for infectious diseases, critical cardiac health and autoimmune biomarkers, and clinical and at-home products to detect COVID-19. It provides visually-read lateral flow products in infectious disease and reproductive health; direct fluorescent antibodies in infectious disease and virology; micro-t...

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