NYSE: PRM
Perimeter Solutions Inc Stock Ownership - Who owns Perimeter Solutions?

Insider buying vs selling

Have Perimeter Solutions Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Windacre Partnership LLC10% Owner2026-06-301,875,000$33.90
$63.56MSell
Windacre Partnership LLC10% Owner2026-06-29437,500$33.00
$14.44MSell
Windacre Partnership LLC10% Owner2026-06-262,296,400$34.40
$79.00MSell
Windacre Partnership LLC10% Owner2026-06-26150,000$34.98
$5.25MSell
Windacre Partnership LLC10% Owner2026-06-26378,600$36.22
$13.71MSell
Windacre Partnership LLC10% Owner2026-06-26548,479$34.51
$18.93MSell
Windacre Partnership LLC10% Owner2026-06-2620,000$36.25
$725.00kSell
Haitham KhouriChief Executive Officer2026-05-22117,511$31.19
$3.67MSell
Haitham KhouriChief Executive Officer2026-05-2191,724$31.91
$2.93MSell
Haitham KhouriChief Executive Officer2026-05-2020,300$34.09
$692.03kSell

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Net Insider Buy/Sell (L12M) Ownership

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PRM Shareholders

What type of owners hold Perimeter Solutions Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Windacre Partnership Master Fund LP13.40%21,854,600$740.43MInsider
Windacre Partnership LLC13.40%21,854,600$740.43MInstitution
Windacre Partnership LLC9.90%16,148,621$547.12MInsider
Principal Financial Group Inc7.67%12,513,159$423.95MInstitution
Blackrock Inc6.64%10,829,380$366.90MInstitution
Fmr LLC5.54%9,039,110$306.25MInstitution
William N. Thorndike Jr.5.23%8,535,656$289.19MInsider
Vanguard Capital Management LLC3.79%6,175,487$209.23MInstitution
Dimensional Fund Advisors LP2.92%4,763,465$161.39MInstitution
Janus Henderson Group PLC2.46%4,007,536$135.78MInstitution

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PRM vs Specialty Chemical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PRM70.57%29.43%Net SellingNet Selling
BCPC88.95%2.45%Net Selling
SXT86.77%13.23%Net SellingNet Selling
CBT71.82%28.18%Net Selling
SSL5.09%0.03%Net SellingNet Selling

Perimeter Solutions Stock Ownership FAQ

Who owns Perimeter Solutions?

Perimeter Solutions (NYSE: PRM) is owned by 80.78% institutional shareholders, 33.70% Perimeter Solutions insiders, and 0.00% retail investors. Windacre Partnership Master Fund LP is the largest individual Perimeter Solutions shareholder, owning 21.85M shares representing 13.40% of the company. Windacre Partnership Master Fund LP's Perimeter Solutions shares are currently valued at $730.82M.

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