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
Jan 31, 2026 Buy	Common Stock A-Award	Mclellan Philip D. Chief Operations Officer	Officer	634 Value: $9K
Jan 31, 2026 Sell	Common Stock F-InKind	Mclellan Philip D. Chief Operations Officer	Officer	228 Value: $6K
Jan 31, 2026 Sell	Common Stock F-InKind	Mclellan Philip D. Chief Operations Officer	Officer	674 Value: $18.3K
Jan 31, 2026 Buy	Common Stock A-Award	Mclellan Philip D. Chief Operations Officer	Officer	847 Value: $11.5K
Jan 31, 2026 Sell	Common Stock F-InKind	Mclellan Philip D. Chief Operations Officer	Officer	304 Value: $8K
Jan 30, 2026 Buy	Restricted Stock Units A-Award	Blaser Brian J. President And CEO	CEO / President	213 470 Value: $5.80M
Jan 30, 2026 Buy	Restricted Stock Units A-Award	Busky Joseph M. Chief Financial Officer	C-Suite Officer	29 444 Value: $800.0K
Jan 30, 2026 Buy	Non-Qualified Stock Options A-Award	Hodges Michelle A Chief Legal Officer	Officer	38 561 Value: $1.05M
Jan 30, 2026 Buy	Restricted Stock Units A-Award	Hodges Michelle A Chief Legal Officer	Officer	38 562 Value: $1.05M
Jan 30, 2026 Buy	Non-Qualified Stock Options A-Award	Siegrist Jonathan Philip EVP Of R&d & CTO	Officer	36 150 Value: $982.2K
Jan 30, 2026 Buy	Restricted Stock Units A-Award	Siegrist Jonathan Philip EVP Of R&d & CTO	Officer	36 152 Value: $982.2K
Jan 30, 2026 Buy	Restricted Stock Units A-Award	Bowman Ronald Lee Chief Human Resources Officer	Officer	36 152 Value: $982.2K
Jan 30, 2026 Buy	Non-Qualified Stock Options A-Award	Bowman Ronald Lee Chief Human Resources Officer	Officer	36 150 Value: $982.2K
Jan 30, 2026 Buy	Restricted Stock Units A-Award	Mclellan Philip D. Chief Operations Officer	Officer	36 152 Value: $982.2K
Jan 30, 2026 Buy	Non-Qualified Stock Options A-Award	Mclellan Philip D. Chief Operations Officer	Officer	36 150 Value: $982.2K
Jan 29, 2026 Buy	Common Stock A-Award	Siegrist Jonathan Philip EVP Of R&d & CTO	Officer	2 448 Value: $67.1K
Jan 29, 2026 Sell	Common Stock F-InKind	Mclellan Philip D. Chief Operations Officer	Officer	2 017 Value: $55.3K
Jan 29, 2026 Buy	Common Stock A-Award	Mclellan Philip D. Chief Operations Officer	Officer	4 897 Value: $134.2K
Jan 29, 2026 Buy	Restricted Stock Units M-Exempt	Siegrist Jonathan Philip EVP Of R&d & CTO	Officer	2 448 Value: $67.1K
Jan 29, 2026 Sell	Common Stock F-InKind	Siegrist Jonathan Philip EVP Of R&d & CTO	Officer	1 009 Value: $27.7K
Jan 29, 2026 Buy	Common Stock A-Award	Hodges Michelle A Chief Legal Officer	Officer	7 836 Value: $214.8K
Jan 29, 2026 Sell	Common Stock F-InKind	Hodges Michelle A Chief Legal Officer	Officer	3 072 Value: $84.2K
Jan 29, 2026 Buy	Restricted Stock Units M-Exempt	Hodges Michelle A Chief Legal Officer	Officer	7 836 Value: $214.8K
Jan 29, 2026 Buy	Restricted Stock Units M-Exempt	Bowman Ronald Lee Chief Human Resources Officer	Officer	2 938 Value: $80.5K
Jan 29, 2026 Buy	Common Stock A-Award	Bowman Ronald Lee Chief Human Resources Officer	Officer	2 938 Value: $80.5K

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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