FRED ALGER MANAGEMENT, LLC

Position in ONT — Onterris, Inc.

CIK 3520 NEW YORK, NY

Position in ONT

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

Position Value

$8,493,188

-$18,039,031 QoQ

Shares Held

387,994

-63.7% QoQ

Ownership

1.07%

of shares outstanding

% of Portfolio

0.04%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2021

21 quarters on record

Voting authority Sole 85% Shared 0% None 15%

Industrials · as of Mar 31, 2026

FRED ALGER MANAGEMENT, LLC holds $301,329,538 across 3 Waste Management names. ONT ranks #3 (2.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GFL	GFL Environmental Inc.	6,017,527	$251,051,226
2	CWST	Casella Waste Systems Inc	526,659	$41,785,124
3	ONT	Onterris, Inc. This page	387,994	$8,493,188

21 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$8,493,188	387,994	-63.7%	Shares	Sole	2026-05-15
2025-12-31	$26,532,219	1,068,555	-7.1%	Shares	Sole	2026-02-17
2025-09-30	$31,570,650	1,149,696	-0.1%	Shares	Sole	2025-11-14
2025-06-30	$25,199,569	1,151,191	+16.2%	Shares	Sole	2025-08-14
2025-03-31	$14,130,646	990,929	-2.3%	Shares	Sole	2025-05-16
2024-12-31	$18,807,770	1,013,896	-45.7%	Shares	Sole	2025-02-14
2024-09-30	$49,086,372	1,866,402	+33.7%	Shares	Sole	2024-11-14
2024-06-30	$62,192,212	1,395,696	+17.6%	Shares	Sole	2024-08-14
2024-03-31	$46,491,303	1,186,911	+24.4%	Shares	Sole	2024-05-15
2023-12-31	$30,663,522	954,358	-12.3%	Shares	Sole	2024-02-14
2023-09-30	$31,833,328	1,087,947	-41.7%	Shares	Sole	2023-11-14
2023-06-30	$78,567,994	1,865,337	-23.1%	Shares	Sole	2023-08-14
2023-03-31	$86,504,351	2,425,129	-14.9%	Shares	Sole	2023-05-16
2022-12-31	$126,432,129	2,848,212	-11.5%	Shares	Sole	2023-02-14
2022-09-30	$108,242,257	3,216,709	-4.7%	Shares	Sole	2022-11-15
2022-06-30	$113,909,716	3,374,103	+6.3%	Shares	Sole	2022-08-15
2022-03-31	$168,001,036	3,174,023	+9.6%	Shares	Sole	2022-05-16
2021-12-31	$204,221,284	2,896,345	-1.6%	Shares	Sole	2022-02-14
2021-09-30	$181,820,101	2,944,932	+45.7%	Shares	Sole	2021-11-15
2021-06-30	$108,468,216	2,021,398	+58.4%	Shares	Sole	2021-08-16
2021-03-31	$64,040,633	1,275,964	—	Shares	Sole	2021-05-17
No filing history on record for this holder in this stock.