Ticker · CUSIP 29355X107

NPO

ENPRO INDS INC

Industrials·Specialty Industrial Machinery

···Share

Holders (tracked)

Combined shares

1,327,175

Combined value

$284.19M

Last close

$281.67

Quarter

2025Q4

Price is +31.5% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$281.67+138.22 (+96.35%)H $285.06 · L $136.59 · Avg Vol 178K

Tracked holders · last 8 quarters

+4 vs previous quarter over the last 8.

SEC event timeline

21 events

Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+15,284 shares · 2025Q4
Position
Ron Baron (Baron Capital / BAMCO) added2026-02-17
+9,459 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) added2026-02-17
+3,718 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) opened position2026-02-17
+2,987 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+407 shares · 2025Q4
Position
T. Rowe Price added2026-02-17
+85,667 shares · 2025Q4
Position
D.E. Shaw & Co. opened position2026-02-17
+2,902 shares · 2025Q4
Position
Wellington Management trimmed2026-02-17
−50,718 shares · 2025Q4
Position
Renaissance Technologies added2026-02-12
+14,900 shares · 2025Q4
Position
Mario Gabelli (GAMCO) trimmed2026-02-05
−14,670 shares · 2025Q4
Position
First Eagle Investment Management added2026-02-04
+4,505 shares · 2025Q4
Position
Paul Tudor Jones (Tudor Investment) exited2025-12-09
−2,325 shares · 2025Q3
Position
AQR Capital Management added2025-11-14
+5,193 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+244,687 shares · 2025Q3
Position
Wellington Management trimmed2025-11-14
−22,152 shares · 2025Q3
Position
Ron Baron (Baron Capital / BAMCO) added2025-11-14
+2,263 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) exited2025-11-14
−27,874 shares · 2025Q3
Position
Renaissance Technologies trimmed2025-11-13
−5,400 shares · 2025Q3
Position
Norges Bank (Norway SWF) trimmed2025-11-12
−8,321 shares · 2024Q3
Position
First Eagle Investment Management added2025-11-12
+2,739 shares · 2025Q3
Position
Mario Gabelli (GAMCO) trimmed2025-11-12
−40,392 shares · 2025Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for NPO →

Follow-the-investor returns

If you'd copied each holder of NPO…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Mario Gabelli (GAMCO)	2016Q1	$65.65	+329.0%	$93.5M
First Eagle Investment Management	2021Q2	$125.24	+124.9%	$18.1M
D.E. Shaw & Co.	2016Q1	$126.26	+123.1%	$817K
Wellington Management	2016Q2	$146.10	+92.8%	$61.9M
Ron Baron (Baron Capital / BAMCO)	2024Q4	$174.29	+61.6%	$84.2M
AQR Capital Management	2017Q3	$186.22	+51.3%	$2.6M
Izzy Englander (Millennium Mgmt)	2016Q1	$187.94	+49.9%	$841K
Renaissance Technologies	2016Q1	$201.84	+39.5%	$6.8M
Paul Tudor Jones (Tudor Investment)	2016Q1	$203.28	+38.6%	$4.3M
Ken Griffin (Citadel Advisors)	2016Q1	$209.30	+34.6%	$592K
Ken Griffin (Citadel Advisors)	2016Q1	$209.30	+34.6%	$592K
T. Rowe Price	2016Q1	$218.12	+29.1%	$98.9M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions3

Paul Tudor Jones (Tudor Investment)
+15,284
$3.3M
Izzy Englander (Millennium Mgmt)
+2,987
$640K
D.E. Shaw & Co.
+2,902
$621K

Added to6

Renaissance Technologies
+14,900
$3.2M
Ron Baron (Baron Capital / BAMCO)
+9,459
$2.0M
First Eagle Investment Management
+4,505
$965K
Ken Griffin (Citadel Advisors)
+3,718
$796K
AQR Capital Management
+407
$87K
T. Rowe Price
+85,667
$18K

Trimmed2

Wellington Management
−50,718
$10.9M
Mario Gabelli (GAMCO)
−14,670
$3.1M

Exited0

—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	14	4,701,243	$24.09B	—
2022Q2	13	4,743,680	$17.21B	-1
2022Q3	13	4,685,592	$398.2M	—
2022Q4	12	4,622,800	$502.5M	-1
2023Q1	13	4,535,071	$471.1M	+1
2023Q2	11	4,639,556	$619.5M	-2
2023Q3	13	4,310,008	$522.3M	+2
2023Q4	11	4,328,728	$678.5M	-2
2024Q1	13	4,448,832	$750.8M	+2
2024Q2	8	4,428,594	$644.7M	-5
2024Q3	9	1,111,093	$180.2M	+1
2024Q4	9	682,873	$117.8M	—
2025Q1	11	990,177	$160.2M	+2
2025Q2	10	1,105,142	$211.7M	-1
2025Q3	8	1,250,634	$282.6M	-2
2025Q4	12	1,327,175	$284.2M	+4

Who owns NPO

12 super-investors · 2025Q4

Tracked stake

1.33M

Combined value

$284M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New3Added7Trim2

#	Manager	Shares	Value	% of book	Last action
1	T. Rowe Price	350.9K	$75M	0.0%	Added+85.7K
2	Mario Gabelli GAMCO	332.0K	$71M	0.7%	Trim−14.7K
3	Ron Baron Baron Capital / BAMCO	298.9K	$64M	0.2%	Added+9.5K
4	Wellington Management	219.7K	$47M	0.0%	Trim−50.7K
5	First Eagle Investment Management	64.3K	$14M	0.0%	Added+4.5K
6	Renaissance Technologies	24.1K	$5M	0.0%	Added+14.9K
7	Paul Tudor Jones Tudor Investment	15.3K	$3M	0.0%	New+15.3K
8	AQR Capital Management	9.3K	$2M	0.0%	Added+407
9	Ken Griffin Citadel Advisors	4.6K	$995K	0.0%	Added+3.7K
10	Izzy Englander Millennium Mgmt	3.0K	$640K	0.0%	New+3.0K
11	D.E. Shaw & Co.	2.9K	$621K	0.0%	New+2.9K
12	Ken Griffin Citadel Advisors	2.1K	$450K	0.0%	Added+3.7K

Recent moves

20 transactions

NEWD.E. Shaw & Co.
+2,902 · 2025Q4
ADDRon Baron (Baron Capital / BAMCO)
+9,459 · 2025Q4
ADDAQR Capital Management
+407 · 2025Q4
NEWPaul Tudor Jones (Tudor Investment)
+15,284 · 2025Q4
ADDKen Griffin (Citadel Advisors)
+3,718 · 2025Q4
ADDT. Rowe Price
+85,667 · 2025Q4
NEWIzzy Englander (Millennium Mgmt)
+2,987 · 2025Q4
TRIMWellington Management
−50,718 · 2025Q4
ADDRenaissance Technologies
+14,900 · 2025Q4
TRIMMario Gabelli (GAMCO)
−14,670 · 2025Q4
ADDFirst Eagle Investment Management
+4,505 · 2025Q4
SOLDPaul Tudor Jones (Tudor Investment)
−2,325 · 2025Q3
ADDT. Rowe Price
+244,687 · 2025Q3
TRIMWellington Management
−22,152 · 2025Q3
SOLDIzzy Englander (Millennium Mgmt)
−27,874 · 2025Q3
ADDRon Baron (Baron Capital / BAMCO)
+2,263 · 2025Q3
ADDAQR Capital Management
+5,193 · 2025Q3
TRIMRenaissance Technologies
−5,400 · 2025Q3
TRIMMario Gabelli (GAMCO)
−40,392 · 2025Q3
TRIMNorges Bank (Norway SWF)
−8,321 · 2024Q3

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