AMERICAN CENTURY COMPANIES INC

Position in RBBN — Ribbon Communications Inc.

CIK 748054 KANSAS CITY, MO

Position in RBBN

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$450,209

-$165,955 QoQ

Shares Held

212,363

-0.7% QoQ

Ownership

0.121%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2023

12 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Technology · as of Mar 31, 2026

AMERICAN CENTURY COMPANIES INC holds $3,622,876,019 across 93 Software - Application names. RBBN ranks #73 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	DDOG	Datadog, Inc.	3,804,623	$449,135,745
2	SNOW	Snowflake Inc.	2,630,847	$396,784,344
3	CDNS	Cadence Design Systems Inc	1,228,875	$341,467,496
4	FICO	Fair Isaac Corp	258,827	$276,308,175
5	UBER	Uber Technologies, Inc	3,683,744	$264,971,705
6	NOW	ServiceNow, Inc.	2,354,685	$246,182,316
7	DT	Dynatrace, Inc.	4,676,894	$172,951,540
8	SHOP	Shopify Inc.	1,415,395	$167,894,154

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$450,209	212,363	-0.7%	Shares	Defined	2026-05-15
2025-12-31	$616,164	213,946	+2.8%	Shares	Defined	2026-02-13
2025-09-30	$790,787	208,102	+13.1%	Shares	Defined	2025-11-12
2025-06-30	$738,028	184,047	+25.9%	Shares	Defined	2025-08-12
2025-03-31	$573,009	146,176	+47.2%	Shares	Defined	2025-05-13
2024-12-31	$412,975	99,273	+1.8%	Shares	Defined	2025-02-11
2024-09-30	$317,018	97,544	-0.2%	Shares	Defined	2024-11-12
2024-06-30	$321,492	97,718	+2.0%	Shares	Defined	2024-08-07
2024-03-31	$306,419	95,756	+120.7%	Shares	Defined	2024-05-14
2023-12-31	$125,848	43,396	+27.6%	Shares	Defined	2024-02-13
2023-06-30	$94,885	34,009	+151.8%	Shares	Defined	2023-08-14
2023-03-31	$46,183	13,504	—	Shares	Defined	2023-05-11
No filing history on record for this holder in this stock.