Campbell & CO Investment Adviser LLC

Position in NPKI — NPK International Inc.

CIK 1353570 BALTIMORE, MD

Position in NPKI

as of Jun 30, 2026 · filed Aug 3, 2026 Compact

Position Value

$247,814

-$1,838,774 QoQ

Shares Held

15,576

-89.2% QoQ

Ownership

0.018%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#182

of 255 holders

Holding Since

Jun 2023

12 quarters on record

Voting authority Sole 0% Shared 0% None 100%

Industrials · as of Jun 30, 2026

Campbell & CO Investment Adviser LLC holds $23,510,913 across 10 Building Products & Equipment names. NPKI ranks #10 (1.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AAON	Aaon, Inc.	37,752	$4,789,218
2	LII	Lennox International Inc	6,087	$3,487,546
3	GFF	Griffon Corp	34,115	$3,327,235
4	SPXC	SPX Technologies, Inc.	11,031	$2,704,470
5	CSL	Carlisle Companies Inc	6,588	$2,389,797
6	TT	Trane Technologies plc	3,912	$1,921,417
7	AWI	Armstrong World Industries Inc	10,803	$1,733,017
8	WMS	Advanced Drainage Systems, Inc.	9,337	$1,465,535

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$247,814	15,576	-89.2%	Shares	Sole	2026-08-03
2026-03-31	$2,086,588	144,002	+65.7%	Shares	Sole	2026-05-15
2025-12-31	$1,035,955	86,909	+22.4%	Shares	Sole	2026-02-12
2025-09-30	$803,224	71,019	+143.3%	Shares	Sole	2025-10-28
2025-06-30	$248,389	29,188	+14.9%	Shares	Sole	2025-08-07
2024-12-31	$194,818	25,400	-27.1%	Shares	Sole	2025-02-10
2024-09-30	$241,503	34,849	-72.1%	Shares	Sole	2024-11-12
2024-06-30	$1,039,240	125,059	-14.4%	Shares	Sole	2024-08-13
2024-03-31	$1,054,372	146,035	+88.2%	Shares	Sole	2024-05-10
2023-12-31	$515,157	77,584	-41.5%	Shares	Sole	2024-02-13
2023-09-30	$916,715	132,665	+141.3%	Shares	Sole	2023-11-08
2023-06-30	$287,582	54,987	—	Shares	Sole	2023-08-11
No filing history on record for this holder in this stock.