S&CO INC

Position in RBRK — Rubrik, Inc.

CIK 1082461 BOSTON, MA

Position in RBRK

as of Jun 30, 2026 · filed Aug 6, 2026 Compact

Position Value

$4,303,971

+$1,678,592 QoQ

Shares Held

53,612

0.0% QoQ

Ownership

0.026%

of shares outstanding

% of Portfolio

0.34%

of 13F equity value

Holder Rank

#159

of 573 holders

Holding Since

Mar 2025

6 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

S&CO INC holds $112,300,054 across 4 Software - Infrastructure names. RBRK ranks #3 (3.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	MSFT	Microsoft Corp	198,340	$73,984,786
2	PANW	Palo Alto Networks Inc	91,852	$31,323,369
3	RBRK	Rubrik, Inc. This page	53,612	$4,303,971
4	OKTA	Okta, Inc.	19,699	$2,687,928

6 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$4,303,971	53,612	0.0%	Shares	Sole	2026-08-06
2026-03-31	$2,625,379	53,612	0.0%	Shares	Sole	2026-05-07
2025-12-31	$4,100,245	53,612	0.0%	Shares	Sole	2026-02-05
2025-09-30	$4,409,587	53,612	+102.8%	Shares	Sole	2025-11-06
2025-06-30	$2,368,132	26,433	+100.1%	Shares	Sole	2025-08-07
2025-03-31	$805,484	13,209	—	Shares	Sole	2025-05-08
No filing history on record for this holder in this stock.