Ticker · CUSIP 678026105

OIS

OIL STS INTL INC

Energy·Oil & Gas Equipment & Services

···Share

Holders (tracked)

Combined shares

8,154,786

Combined value

$55.21M

Last close

$10.22

Quarter

2025Q4

Price is +51.0% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$10.22+6.63 (+184.68%)H $14.39 · L $3.42 · Avg Vol 787K

Tracked holders · last 8 quarters

Flat over the last 8 quarters.

SEC event timeline

18 events

Ken Griffin (Citadel Advisors) added2026-02-17
+70,300 shares · 2025Q4
Position
D.E. Shaw & Co. trimmed2026-02-17
−169,465 shares · 2025Q4
Position
Two Sigma Investments added2026-02-17
+137,028 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) trimmed2026-02-17
−1,492 shares · 2025Q4
Position
T. Rowe Price added2026-02-17
+3,419 shares · 2025Q4
Position
Wellington Management trimmed2026-02-17
−2,195 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+241,584 shares · 2025Q4
Position
Renaissance Technologies trimmed2026-02-12
−77,500 shares · 2025Q4
Position
Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09
−14,630 shares · 2025Q4
Position
First Eagle Investment Management trimmed2026-02-04
−23,500 shares · 2025Q4
Position
Two Sigma Investments added2025-11-14
+104,427 shares · 2025Q3
Position
Wellington Management trimmed2025-11-14
−3,427 shares · 2025Q3
Position
D.E. Shaw & Co. trimmed2025-11-14
−152,819 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+4,127 shares · 2025Q3
Position
AQR Capital Management added2025-11-14
+305,065 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) trimmed2025-11-14
−1,101 shares · 2025Q3
Position
Renaissance Technologies trimmed2025-11-13
−6,600 shares · 2025Q3
Position
First Eagle Investment Management added2025-11-12
+16,778 shares · 2025Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for OIS →

Follow-the-investor returns

If you'd copied each holder of OIS…

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
D.E. Shaw & Co.	2016Q1	$4.53	+125.4%	$27.1M
T. Rowe Price	2016Q1	$4.81	+112.5%	$1.2M
Renaissance Technologies	2016Q3	$5.16	+98.0%	$546K
Izzy Englander (Millennium Mgmt)	2016Q2	$5.41	+88.9%	$127K
First Eagle Investment Management	2021Q4	$5.51	+85.5%	$26.4M
AQR Capital Management	2016Q1	$5.64	+81.2%	$18.2M
Ken Griffin (Citadel Advisors)	2016Q1	$6.13	+66.6%	$1.3M
Two Sigma Investments	2016Q3	$6.14	+66.5%	$6.1M
Ken Fisher (Fisher Asset Mgmt)	2018Q2	$11.56	-11.6%	$2.2M
Wellington Management	2016Q4	$30.96	-67.0%	$247K

Who moved on this name in 2025Q4

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

New positions0

—

Added to4

AQR Capital Management
+241,584
$1.6M
Two Sigma Investments
+137,028
$928K
Ken Griffin (Citadel Advisors)
+70,300
$476K
T. Rowe Price
+3,419
$23

Trimmed6

D.E. Shaw & Co.
−169,465
$1.1M
Renaissance Technologies
−77,500
$525K
First Eagle Investment Management
−23,500
$159K
Ken Fisher (Fisher Asset Mgmt)
−14,630
$99K
Wellington Management
−2,195
$15K
Izzy Englander (Millennium Mgmt)
−1,492
$10K

Exited0

—

Institutional ownership over time

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

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	11	12,250,085	$85.1M	—
2022Q2	11	13,357,604	$72.4M	—
2022Q3	11	14,685,783	$57.1M	—
2022Q4	13	15,782,436	$117.7M	+2
2023Q1	13	14,801,857	$123.3M	—
2023Q2	13	15,034,067	$112.3M	—
2023Q3	15	14,770,331	$123.6M	+2
2023Q4	13	15,279,868	$103.8M	-2
2024Q1	12	13,411,945	$82.6M	-1
2024Q2	13	16,406,774	$72.8M	+1
2024Q3	12	8,438,167	$38.8M	-1
2024Q4	12	7,997,154	$40.5M	—
2025Q1	12	9,172,492	$47.2M	—
2025Q2	10	8,381,865	$44.9M	-2
2025Q3	10	7,991,237	$48.4M	—
2025Q4	10	8,154,786	$55.2M	—

Who owns OIS

10 super-investors · 2025Q4

Tracked stake

8.15M

Combined value

$55M

% of shares outstanding

—

shares-out unknown

Quarter action mix

Added4Trim6

#	Manager	Shares	Value	% of book	Last action
1	D.E. Shaw & Co.	2.65M	$18M	0.0%	Trim−169.5K
2	First Eagle Investment Management	2.58M	$17M	0.0%	Trim−23.5K
3	AQR Capital Management	1.78M	$12M	0.0%	Added+241.6K
4	Two Sigma Investments	597.7K	$4M	0.0%	Added+137.0K
5	Ken Fisher Fisher Asset Mgmt	211.1K	$1M	0.0%	Trim−14.6K
6	Ken Griffin Citadel Advisors	128.2K	$868K	0.0%	Added+70.3K
7	T. Rowe Price	116.4K	$789K	0.0%	Added+3.4K
8	Renaissance Technologies	53.4K	$362K	0.0%	Trim−77.5K
9	Wellington Management	24.2K	$164K	0.0%	Trim−2.2K
10	Izzy Englander Millennium Mgmt	12.4K	$84K	0.0%	Trim−1.5K

Recent moves

20 transactions

TRIMWellington Management
−2,195 · 2025Q4
ADDAQR Capital Management
+241,584 · 2025Q4
TRIMD.E. Shaw & Co.
−169,465 · 2025Q4
ADDT. Rowe Price
+3,419 · 2025Q4
ADDKen Griffin (Citadel Advisors)
+70,300 · 2025Q4
TRIMIzzy Englander (Millennium Mgmt)
−1,492 · 2025Q4
ADDTwo Sigma Investments
+137,028 · 2025Q4
TRIMRenaissance Technologies
−77,500 · 2025Q4
TRIMKen Fisher (Fisher Asset Mgmt)
−14,630 · 2025Q4
TRIMFirst Eagle Investment Management
−23,500 · 2025Q4
TRIMD.E. Shaw & Co.
−152,819 · 2025Q3
ADDT. Rowe Price
+4,127 · 2025Q3
TRIMIzzy Englander (Millennium Mgmt)
−1,101 · 2025Q3
ADDTwo Sigma Investments
+104,427 · 2025Q3
ADDAQR Capital Management
+305,065 · 2025Q3
TRIMWellington Management
−3,427 · 2025Q3
TRIMRenaissance Technologies
−6,600 · 2025Q3
ADDFirst Eagle Investment Management
+16,778 · 2025Q3
TRIMTwo Sigma Investments
−13,041 · 2025Q2
TRIMIzzy Englander (Millennium Mgmt)
−508,685 · 2025Q2

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