Ticker · CUSIP 60649T107

MG

MISTRAS GROUP INC

Industrials·Security & Protection Services

···Share

Holders (tracked)

Combined shares

1,014,436

Combined value

$12.83M

Last close

$17.85

Quarter

2025Q4

Price is +41.1% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$17.85+8.53 (+91.52%)H $17.85 · L $7.29 · Avg Vol 148K

Position opened

Tracked holders · last 8 quarters

Flat over the last 8 quarters.

SEC event timeline

13 events

Ken Griffin (Citadel Advisors) trimmed2026-02-17
−137,421 shares · 2025Q4
Position
D.E. Shaw & Co. added2026-02-17
+27,991 shares · 2025Q4
Position
Two Sigma Investments added2026-02-17
+36,927 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) trimmed2026-02-17
−201,236 shares · 2025Q4
Position
T. Rowe Price exited2026-02-17
−10,437 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+2,654 shares · 2025Q4
Position
Renaissance Technologies added2026-02-12
+20,800 shares · 2025Q4
Position
First Eagle Investment Management opened position2026-02-04
+77,219 shares · 2025Q4
Position
AQR Capital Management added2025-11-14
+380 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+117,334 shares · 2025Q3
Position
D.E. Shaw & Co. added2025-11-14
+22,004 shares · 2025Q3
Position
Two Sigma Investments added2025-11-14
+35,721 shares · 2025Q3
Position
Renaissance Technologies trimmed2025-11-13
−80,200 shares · 2025Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for MG →

Follow-the-investor returns

If you'd copied each holder of MG…

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
Izzy Englander (Millennium Mgmt)	2016Q1	$8.85	+101.7%	$2.8M
Renaissance Technologies	2016Q1	$10.09	+76.9%	$3.6M
AQR Capital Management	2016Q1	$10.12	+76.3%	$332K
Two Sigma Investments	2016Q1	$10.50	+70.1%	$2.4M
D.E. Shaw & Co.	2016Q1	$11.24	+58.8%	$2.9M
Ken Griffin (Citadel Advisors)	2016Q1	$11.36	+57.2%	$1.2M
Ken Griffin (Citadel Advisors)	2016Q1	$11.36	+57.2%	$1.2M
Ken Griffin (Citadel Advisors)	2016Q1	$11.36	+57.2%	$1.2M
First Eagle Investment Management	2021Q2	$11.98	+49.1%	$1.4M

Who moved on this name in 2025Q4

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

New positions1

First Eagle Investment Management
+77,219
$977K

Added to4

Two Sigma Investments
+36,927
$467K
D.E. Shaw & Co.
+27,991
$354K
Renaissance Technologies
+20,800
$263K
AQR Capital Management
+2,654
$34K

Trimmed2

Izzy Englander (Millennium Mgmt)
−201,236
$2.5M
Ken Griffin (Citadel Advisors)
−137,421
$1.7M

Exited1

T. Rowe Price
−10,437
$103

Institutional ownership over time

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

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	8	1,864,334	$12.3M	—
2022Q2	6	1,071,043	$6.4M	-2
2022Q3	6	985,180	$4.4M	—
2022Q4	8	975,469	$4.8M	+2
2023Q1	8	1,106,721	$7.5M	—
2023Q2	8	1,746,937	$13.5M	—
2023Q3	6	1,584,225	$8.6M	-2
2023Q4	5	1,508,534	$11.0M	-1
2024Q1	6	1,533,514	$14.7M	+1
2024Q2	7	1,589,612	$13.2M	+1
2024Q3	6	408,709	$4.6M	-1
2024Q4	8	638,769	$5.8M	+2
2025Q1	8	781,341	$8.3M	—
2025Q2	9	974,501	$7.8M	+1
2025Q3	9	1,117,039	$11.0M	—
2025Q4	9	1,014,436	$12.8M	—

Who owns MG

9 super-investors · 2025Q4

Tracked stake

1.01M

Combined value

$13M

% of shares outstanding

—

shares-out unknown

Quarter action mix

New1Added4Trim4

#	Manager	Shares	Value	% of book	Last action
1	Renaissance Technologies	201.6K	$3M	0.0%	Added+20.8K
2	D.E. Shaw & Co.	163.8K	$2M	0.0%	Added+28.0K
3	Izzy Englander Millennium Mgmt	156.3K	$2M	0.0%	Trim−201.2K
4	Two Sigma Investments	133.0K	$2M	0.0%	Added+36.9K
5	Ken Griffin Citadel Advisors	102.9K	$1M	0.0%	Trim−137.4K
6	Ken Griffin Citadel Advisors	95.9K	$1M	0.0%	Trim−137.4K
7	First Eagle Investment Management	77.2K	$977K	0.0%	New+77.2K
8	Ken Griffin Citadel Advisors	65.2K	$825K	0.0%	Trim−137.4K
9	AQR Capital Management	18.6K	$235K	0.0%	Added+2.7K

Recent moves

20 transactions

ADDAQR Capital Management
+2,654 · 2025Q4
TRIMIzzy Englander (Millennium Mgmt)
−201,236 · 2025Q4
ADDD.E. Shaw & Co.
+27,991 · 2025Q4
TRIMKen Griffin (Citadel Advisors)
−137,421 · 2025Q4
SOLDT. Rowe Price
−10,437 · 2025Q4
ADDTwo Sigma Investments
+36,927 · 2025Q4
ADDRenaissance Technologies
+20,800 · 2025Q4
NEWFirst Eagle Investment Management
+77,219 · 2025Q4
ADDTwo Sigma Investments
+35,721 · 2025Q3
ADDIzzy Englander (Millennium Mgmt)
+117,334 · 2025Q3
ADDD.E. Shaw & Co.
+22,004 · 2025Q3
ADDAQR Capital Management
+380 · 2025Q3
TRIMRenaissance Technologies
−80,200 · 2025Q3
TRIMD.E. Shaw & Co.
−18,727 · 2025Q2
TRIMTwo Sigma Investments
−4,311 · 2025Q2
TRIMAQR Capital Management
−52,478 · 2025Q2
ADDIzzy Englander (Millennium Mgmt)
+163,326 · 2025Q2
NEWT. Rowe Price
+10,437 · 2025Q2
TRIMRenaissance Technologies
−1,000 · 2025Q2
ADDTwo Sigma Investments
+32,357 · 2025Q1

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