Charles River Laboratories (CRL) Protective Put Calculator

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Price a protective put, zero-cost collar, or put spread on Charles River Laboratories. Annual cost, max loss, upside cap, tax treatment, auto-filled from current CRL option chain.

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About Charles River Laboratories

Charles River Laboratories (CRL) is a public Other company, headquartered in Wilmington, MA.

Equity grants at Charles River Laboratories typically include restricted stock units (RSUs).

Charles River Laboratories International, Inc. is an American pharmaceutical and biotechnology contract research organisation (CRO) headquartered in Wilmington, Massachusetts, United States. Founded in 1947, the company provides preclinical and clinical laboratory services for the development of new drugs, vaccines, and medical devices. Its operations span at least 20 countries, offering research models, safety assessment, and manufacturing support services to pharmaceutical, biotechnology, and government clients.

Source: Wikipedia (CC BY-SA 4.0)

Henry Foster founded the company in 1947 in a Boston building above a river, breeding laboratory rats. It now supplies research models and preclinical services that drug developers use before human trials, including safety assessment, discovery services, and manufacturing support for cell and gene therapy. Its horseshoe crab lysate business for endotoxin testing has drawn conservation scrutiny. Demand tracks biotech funding, which made the venture capital contraction after 2022 a direct headwind. Headquarters are in Wilmington, Massachusetts.

Sources: criver.com · en.wikipedia.org

Equity comp at Charles River Laboratories

  • RSUs use single-trigger vesting: shares become yours as each portion vests on schedule, and the value is taxed as ordinary income at that point. No IPO or acquisition is required.

Researched 2026-08-17.

OptionsAhoy is an independent tool and is not affiliated with, endorsed by, or sponsored by Charles River Laboratories.

A protective put caps your downside on the CRL position at a chosen floor; a zero-cost collar pays for that floor by capping the upside. This calculator prices both structures off the current CRL option chain, with annual cost, max loss, and tax-treatment notes.

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Charles River Laboratories equity questions

How much does it cost to hedge CRL stock?
The cost of a protective put depends on how far below the current price you set the floor, how long the protection lasts, and CRL's option-implied volatility. A zero-cost collar lowers that cost by selling away some upside. The calculator above prices both structures off the current CRL option chain and shows the annual cost, maximum loss, and tax treatment.
Does Charles River Laboratories grant ISOs, NSOs, or RSUs?
Equity compensation at Charles River Laboratories typically takes the form of restricted stock units (RSUs). Restricted stock units are taxed as ordinary income when they vest.
Do Charles River Laboratories RSUs use double-trigger vesting?
No. Charles River Laboratories restricted stock units (RSUs) use single-trigger vesting: each tranche becomes yours as it vests on schedule, taxed as ordinary income at that point, with no liquidity event required.
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