ADAGE CAPITAL PARTNERS GP, L.L.C.

Position in KEYS — Keysight Technologies, Inc.

CIK 1165408 Boston, MA

Position in KEYS

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

Position Value

$39,146,364

+$12,704,234 QoQ

Shares Held

138,635

+6.5% QoQ

Ownership

0.081%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

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

Technology · as of Mar 31, 2026

ADAGE CAPITAL PARTNERS GP, L.L.C. holds $191,449,349 across 5 Scientific & Technical Instruments names. KEYS ranks #3 (20.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	COHR	Coherent Corp.	248,000	$59,076,080
2	TDY	Teledyne Technologies Inc	75,042	$45,401,160
3	KEYS	Keysight Technologies, Inc. This page	138,635	$39,146,364
4	GRMN	Garmin Ltd	146,470	$33,982,504
5	TRMB	Trimble Inc.	212,222	$13,843,241

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$39,146,364	138,635	+6.5%	Shares	Sole	2026-05-15
2025-12-31	$26,442,130	130,135	-1.1%	Shares	Sole	2026-02-17
2025-09-30	$23,025,594	131,635	-1.2%	Shares	Sole	2025-11-14
2025-06-30	$21,831,887	133,235	+0.3%	Shares	Sole	2025-08-14
2025-03-31	$19,894,697	132,835	-9.7%	Shares	Sole	2025-05-15
2024-12-31	$23,634,295	147,135	-70.7%	Shares	Sole	2025-02-14
2024-09-30	$79,683,051	501,372	+252.0%	Shares	Sole	2024-11-14
2024-06-30	$19,477,986	142,435	-16.9%	Shares	Sole	2024-08-14
2024-03-31	$26,793,367	171,335	+15.7%	Shares	Sole	2024-05-15
2023-12-31	$23,550,888	148,035	-3.1%	Shares	Sole	2024-02-14
2023-09-30	$20,221,598	152,835	-0.1%	Shares	Sole	2023-11-14
2023-06-30	$25,608,965	152,935	+1.2%	Shares	Other	2023-08-14
2023-03-31	$24,408,186	151,153	+18.7%	Shares	Sole	2023-05-15
2022-12-31	$21,783,198	127,335	+160.7%	Shares	Sole	2023-02-14
2022-09-30	$7,684,675	48,835	-67.5%	Shares	Sole	2022-11-14
2022-06-30	$20,682,324	150,035	+9.8%	Shares	Sole	2022-08-15
2022-03-31	$21,584,230	136,635	+2.2%	Shares	Sole	2022-05-16
2021-12-31	$27,617,614	133,735	-9.7%	Shares	Sole	2022-02-14
2021-09-30	$24,337,099	148,135	-12.7%	Shares	Sole	2021-11-15
2021-06-30	$26,199,362	169,674	-7.5%	Shares	Sole	2021-08-16
2021-03-31	$26,301,280	183,412	+13.8%	Shares	Sole	2021-05-17
2020-12-31	$21,283,001	161,125	+3.3%	Shares	Sole	2021-02-16
2020-09-30	$15,412,149	156,025	-4.2%	Shares	Sole	2020-11-16
2020-06-30	$16,409,503	162,825	-0.5%	Shares	Sole	2020-08-14
2020-03-31	$13,700,508	163,725	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.