WESTFIELD CAPITAL MANAGEMENT CO LP

Position in IONQ — IonQ, Inc.

CIK 1177719 BOSTON, MA

Position in IONQ

as of Mar 31, 2026 · filed May 11, 2026 Compact

Position Value

$39,606,308

-$10,408,710 QoQ

Shares Held

1,373,788

+23.2% QoQ

Ownership

0.368%

of shares outstanding

% of Portfolio

0.17%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2025

4 quarters on record

Voting authority Sole 94.98940156705402.ToString("F0")% Shared 0.ToString("F0")% None 5.0105984329459865.ToString("F0")%

Technology · as of Mar 31, 2026

WESTFIELD CAPITAL MANAGEMENT CO LP holds $272,720,266 across 4 Computer Hardware names. IONQ ranks #3 (14.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	P	Everpure, Inc.	1,874,763	$110,686,007
2	ANET	Arista Networks, Inc.	780,402	$95,817,757
3	IONQ	IonQ, Inc. This page	1,373,788	$39,606,308
4	RGTI	Rigetti Computing, Inc.	1,895,313	$26,610,194

4 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$39,606,308	1,373,788	+23.2%	Shares	Sole	2026-05-11
2025-12-31	$50,015,018	1,114,665	+203.2%	Shares	Sole	2026-02-11
2025-09-30	$22,611,520	367,667	-45.3%	Shares	Sole	2025-11-12
2025-06-30	$28,859,812	671,627	—	Shares	Sole	2025-08-12
No filing history on record for this holder in this stock.