Charlie Munger gave 77 shares of stock to a California museum. It’s enough to build 30 homes for visiting scholars.

OMAHA, Nebraska (AP) — Charlie Munger, Warren Buffett’s right-hand man for more than five decades, has donated $40 million to a California museum.

According to a Securities and Exchange Commission filing, Munger donated 77 Class A Berkshire Hathaway shares to the Henry E. Huntington Library and Art Museum in San Marino. The gift was worth more than $40.3 million at Thursday’s closing price of $523,545.06 per share.

According to Huntington spokeswoman Susan Turner-Lowe, the donation will be used to construct more than 30 residences for visiting scholars to use while conducting research at the museum.

Turner-Lowe stated that scholars frequently spend a school year studying at the Huntington, which is difficult to afford due to Los Angeles’ expensive rental market. It is, she said, “a long-time dream that is in the process of being fulfilled in a major way.”

Munger gave the Huntington Museum nearly $33 million in Berkshire stock a decade ago to help pay for an education and visitor center.

Munger’s fortune never rivaled that of his best friend Buffett, and he lost his billionaire status long ago as he steadily gave away his fortune. After his wife died in 2010, he donated approximately $1 billion of his stock to a charitable trust.

He owned 15,911 Class A Berkshire shares in 2000, which are now worth more than $8.3 billion.

Munger, known for his quick wit and sarcastic demeanor, will turn 100 in January.

Munger helped Buffett build a conglomerate that owns dozens of companies, including BNSF railroad, Geico insurance, See’s Candy, and Dairy Queen. Although Berkshire Hathaway is headquartered in Omaha, Nebraska, where Buffett resides, Munger has long resided in Southern California, and much of his charitable giving has been directed toward the West Coast.

He made headlines two years ago when he donated $200 million to the University of California, Santa Barbara, on the condition that the project adhere to his design of tightly packed pods with windowless bedrooms. The outcry over “Dormzilla” caused the school to abandon the plan.