SD · Sandridge Energy Inc · Shareholders & Ownership

$14.71 +0.47 (+3.30%)

Russell 2000 member Rebalance outlook locked

Market Cap

$527.95M

37.08M

Volume · Oct 23 143.7K Avg daily vol (3M) 331.26K

Every disclosed holder of SD in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns SD

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	165	30,148,368	81.32%	Yes
Insiders (Forms 3, 4, 5)	10	617,031	1.66%	Yes
13D/G-only blocks	0	0	0.00%	Yes
Remaining	—	6,309,897	17.02%	Rest
Registered funds (N-PORT, not summed)	180	11,113,220	29.97%	No

Shares outstanding: 37,075,296, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of SD

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	ICAHN CARL C 13F CIK 921669 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	5,054,907	13.63%	+107,206	Jun 30, 2026	carried, not yet filed for the newest quarter
2	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	3,282,350	8.85%	+321,677	Jun 30, 2026	carried, not yet filed for the newest quarter
2.1	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	847,273	2.29%	+47,137	Jun 30, 2026	iShares Trust, not summed
2.2	iShares Russell 2000 Value ETF Fund S000004342 · Registered fund · Jun 30, 2026 iShares Trust, not summed	297,924	0.80%	+24,866	Jun 30, 2026	iShares Trust, not summed
2.3	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	108,065	0.29%	+28,497	Jun 30, 2026	iShares Trust, not summed
2.4	Master Small Cap Index Series Fund S000002716 · Registered fund · Jun 30, 2026 Quantitative Master Series LLC, not summed	60,309	0.16%	+9,109	Jun 30, 2026	Quantitative Master Series LLC, not summed
2.5	iShares Core S&P Total U.S. Stock Market ETF Fund S000004317 · Registered fund · Jun 30, 2026 iShares Trust, not summed	57,508	0.16%	+1,360	Jun 30, 2026	iShares Trust, not summed
3	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,587,843	4.28%	+283,220	Jun 30, 2026	carried, not yet filed for the newest quarter
3.1	State Street(R) SPDR(R) S&P(R) Oil & Gas Exploration & Production ETF Fund S000012319 · Registered fund · Jun 30, 2026 SPDR SERIES TRUST, not summed	771,452	2.08%	+217,023	Jun 30, 2026	SPDR SERIES TRUST, not summed
3.2	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	10,600	0.03%	-1,000	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
3.3	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	749	0.00%	0	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
4	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,487,395	4.01%	-16,169	Jun 30, 2026	carried, not yet filed for the newest quarter
5	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,408,271	3.80%	+40,527	Jun 30, 2026	carried, not yet filed for the newest quarter
6	ROYCE & ASSOCIATES LP 13F CIK 906304 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,400,567	3.78%	+139,882	Jun 30, 2026	carried, not yet filed for the newest quarter
6.1	Royce Small-Cap Opportunity Fund Fund S000009512 · Registered fund · Jun 30, 2026 ROYCE FUND, not summed	471,674	1.27%	+12,182	Jun 30, 2026	ROYCE FUND, not summed
6.2	Royce Micro-Cap Fund Fund S000009506 · Registered fund · Jun 30, 2026 ROYCE FUND, not summed	112,942	0.30%	+5,363	Jun 30, 2026	ROYCE FUND, not summed
6.3	Royce Capital Fund - Micro-Cap Portfolio Fund S000009496 · Registered fund · Jun 30, 2026 ROYCE CAPITAL FUND, not summed	36,907	0.10%	+2,756	Jun 30, 2026	ROYCE CAPITAL FUND, not summed
7	FIRST WILSHIRE SECURITIES MANAGEMENT INC 13F CIK 732847 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,393,102	3.76%	-14,761	Jun 30, 2026	carried, not yet filed for the newest quarter
8	AMERICAN CENTURY COMPANIES INC 13F CIK 748054 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,276,276	3.44%	-5,792	Jun 30, 2026	carried, not yet filed for the newest quarter
9	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,254,629	3.38%	+1,964	Jun 30, 2026	carried, not yet filed for the newest quarter
9.1	U.S. Targeted Value Portfolio Fund S000000970 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	273,818	0.74%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
9.2	Dimensional U.S. Targeted Value ETF Fund S000070901 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	171,680	0.46%	0	Jul 31, 2026	Dimensional ETF Trust, not summed
9.3	U.S. SMALL CAP PORTFOLIO Fund S000000971 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	163,695	0.44%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
9.4	U.S. SMALL CAP VALUE PORTFOLIO Fund S000000987 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	162,881	0.44%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
9.5	Dimensional U.S. Small Cap ETF Fund S000070906 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	59,923	0.16%	0	Jul 31, 2026	Dimensional ETF Trust, not summed
10	Avantis U.S. Small Cap Value ETF Fund S000066459 · Registered fund · May 31, 2026 American Century ETF Trust, not summed	1,069,069	2.88%	-3,967	May 31, 2026	American Century ETF Trust, not summed
11	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	1,004,447	2.71%	+30,200	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
12	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	928,946	2.51%	+64,454	Jun 30, 2026	carried, not yet filed for the newest quarter
13	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	925,350	2.50%	+157,652	Jun 30, 2026	carried, not yet filed for the newest quarter
14	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	690,923	1.86%	+121,252	Jun 30, 2026	carried, not yet filed for the newest quarter
14.1	Goldman Sachs Small Cap Value Insights Fund Fund S000014929 · Registered fund · Jul 31, 2026 Goldman Sachs Trust, not summed	117,432	0.32%	-63,271	Jul 31, 2026	Goldman Sachs Trust, not summed
14.2	Goldman Sachs Small Cap Equity Insights Fund Fund S000009329 · Registered fund · Jul 31, 2026 Goldman Sachs Trust, not summed	35,157	0.09%	-58,995	Jul 31, 2026	Goldman Sachs Trust, not summed
14.3	Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF Fund S000048296 · Registered fund · May 31, 2026 Goldman Sachs ETF Trust, not summed	26,487	0.07%	+352	May 31, 2026	Goldman Sachs ETF Trust, not summed
14.4	Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund Fund S000009355 · Registered fund · Jun 30, 2026 Goldman Sachs Variable Insurance Trust, not summed	22,164	0.06%	+14,635	Jun 30, 2026	Goldman Sachs Variable Insurance Trust, not summed
14.5	Goldman Sachs Absolute Return Tracker Fund Fund S000020314 · Registered fund · Jun 30, 2026 GOLDMAN SACHS TRUST, not summed	12,639	0.03%	+150	Jun 30, 2026	GOLDMAN SACHS TRUST, not summed
15	Creative Planning 13F CIK 1540235 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	519,018	1.40%	+156,806	Jun 30, 2026	carried, not yet filed for the newest quarter
16	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	504,494	1.36%	+9,894	Jun 30, 2026	carried, not yet filed for the newest quarter
17	AQR CAPITAL MANAGEMENT LLC 13F CIK 1167557 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	489,909	1.32%	+33,767	Jun 30, 2026	carried, not yet filed for the newest quarter
17.1	AQR Small Cap Multi-Style Fund Fund S000040064 · Registered fund · Jun 30, 2026 AQR Funds, not summed	14,982	0.04%	0	Jun 30, 2026	AQR Funds, not summed
18	LSV ASSET MANAGEMENT 13F CIK 1050470 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	471,711	1.27%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
18.1	LSV Small Cap Value Fund Fund S000039922 · Registered fund · Jul 31, 2026 ADVISORS' INNER CIRCLE FUND, not summed	84,826	0.23%	0	Jul 31, 2026	ADVISORS' INNER CIRCLE FUND, not summed
19	DENALI ADVISORS LLC 13F CIK 1142941 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	414,700	1.12%	+7,249	Jun 30, 2026	carried, not yet filed for the newest quarter
20	MARSHALL WACE, LLP 13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	414,060	1.12%	+314,558	Jun 30, 2026	carried, not yet filed for the newest quarter
21	VANGUARD ENERGY INDEX FUND Fund S000004448 · Registered fund · May 31, 2026 VANGUARD WORLD FUND, not summed	400,664	1.08%	+53,869	May 31, 2026	VANGUARD WORLD FUND, not summed
22	FIRST TRUST ADVISORS LP 13F CIK 1125816 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	393,891	1.06%	-25,554	Jun 30, 2026	carried, not yet filed for the newest quarter
22.1	First Trust Natural Gas ETF Fund S000017177 · Registered fund · Jun 30, 2026 First Trust Exchange-Traded Fund, not summed	286,282	0.77%	-30,074	Jun 30, 2026	First Trust Exchange-Traded Fund, not summed
22.2	First Trust Dow Jones Select MicroCap Index Fund Fund S000010772 · Registered fund · Jun 30, 2026 First Trust Exchange-Traded Fund, not summed	105,181	0.28%	+4,762	Jun 30, 2026	First Trust Exchange-Traded Fund, not summed
23	Bank of New York Mellon Corp 13F CIK 1390777 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	378,889	1.02%	+10,741	Jun 30, 2026	carried, not yet filed for the newest quarter
24	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	371,854	1.00%	+10,769	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
25	THIRD AVENUE MANAGEMENT LLC 13F CIK 1099281 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	352,558	0.95%	+21,740	Jun 30, 2026	carried, not yet filed for the newest quarter
25.1	Third Avenue Small-Cap Value Fund Fund S000001465 · Registered fund · Jul 31, 2026 Third Avenue Trust, not summed	402,693	1.09%	+72,549	Jul 31, 2026	Third Avenue Trust, not summed
26	Qube Research & Technologies Ltd 13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	348,324	0.94%	+335,769	Jun 30, 2026	carried, not yet filed for the newest quarter
27	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	334,371	0.90%	+20,684	Jun 30, 2026	carried, not yet filed for the newest quarter
27.1	Small Cap Value Fund Fund S000001246 · Registered fund · Jun 30, 2026 Northern Funds, not summed	49,485	0.13%	0	Jun 30, 2026	Northern Funds, not summed
27.2	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	16,804	0.05%	+1,614	Jun 30, 2026	Northern Funds, not summed
27.3	Small Cap Core Fund Fund S000001244 · Registered fund · Jun 30, 2026 Northern Funds, not summed	2,867	0.01%	-137	Jun 30, 2026	Northern Funds, not summed
28	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	334,190	0.90%	+121,805	Jun 30, 2026	carried, not yet filed for the newest quarter
28.1	E*TRADE No Fee Total Market Index Fund Fund S000090722 · Registered fund · Jul 31, 2026 E Trade Trust, not summed	412	0.00%	0	Jul 31, 2026	E Trade Trust, not summed
29	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	266,482	0.72%	+4,090	Jun 30, 2026	carried, not yet filed for the newest quarter
29.1	Schwab U.S. Small-Cap ETF Fund S000026636 · Registered fund · May 31, 2026 SCHWAB STRATEGIC TRUST, not summed	151,158	0.41%	-2,398	May 31, 2026	SCHWAB STRATEGIC TRUST, not summed
29.2	Schwab Small-Cap Index Fund Fund S000005912 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	78,482	0.21%	+9,255	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
29.3	Schwab Total Stock Market Index Fund Fund S000005913 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	18,685	0.05%	0	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
29.4	Schwab U.S. Broad Market ETF Fund S000026631 · Registered fund · May 31, 2026 SCHWAB STRATEGIC TRUST, not summed	17,244	0.05%	0	May 31, 2026	SCHWAB STRATEGIC TRUST, not summed
30	Connor, Clark & Lunn Investment Management Ltd. 13F CIK 1596800 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	264,025	0.71%	+49,823	Jun 30, 2026	carried, not yet filed for the newest quarter
31	ROYCE MICRO-CAP TRUST, INC. Fund · Registered fund · Jun 30, 2026 ROYCE MICRO-CAP TRUST, INC., not summed	248,142	0.67%	—	Jun 30, 2026	ROYCE MICRO-CAP TRUST, INC., not summed
32	BRIDGEWAY CAPITAL MANAGEMENT, LLC 13F CIK 1107261 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	214,814	0.58%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
32.1	Omni Small-Cap Value Fund Fund S000033567 · Registered fund · Jun 30, 2026 Bridgeway Funds, Inc., not summed	90,550	0.24%	0	Jun 30, 2026	Bridgeway Funds, Inc., not summed
33	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	209,252	0.56%	+2,582	Jun 30, 2026	carried, not yet filed for the newest quarter
34	WisdomTree U.S. SmallCap Dividend Fund Fund S000012394 · Registered fund · Jun 30, 2026 WisdomTree Trust, not summed	187,487	0.51%	-870	Jun 30, 2026	WisdomTree Trust, not summed
35	Pranin Grayson R Insider CIK 1850724 · May 17, 2026 Director, President, CEO & Director, issuer-wide	172,501	0.47%	+1,760	May 17, 2026	Director, President, CEO & Director, issuer-wide
36	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · May 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	161,879	0.44%	-18,446	May 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
37	Azarias Capital Management, L.P. 13F CIK 1625279 · Investment adviser · Sep 30, 2026	159,437	0.43%	-162,121	Sep 30, 2026
38	D. E. Shaw & Co., Inc. 13F CIK 1009207 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	149,924	0.40%	+88,704	Jun 30, 2026	carried, not yet filed for the newest quarter
39	Trexquant Investment LP 13F CIK 1633445 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	142,278	0.38%	+73,782	Jun 30, 2026	carried, not yet filed for the newest quarter
40	Empowered Funds, LLC 13F CIK 1592828 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	136,761	0.37%	-63	Jun 30, 2026	carried, not yet filed for the newest quarter
40.1	EA Bridgeway Omni Small-Cap Value ETF Fund S000078089 · Registered fund · Jun 30, 2026 EA Series Trust, not summed	124,264	0.34%	0	Jun 30, 2026	EA Series Trust, not summed
40.2	Sequoia Global Value ETF Fund S000082843 · Registered fund · May 29, 2026 EA Series Trust, not summed	12,512	0.03%	-57	May 29, 2026	EA Series Trust, not summed
41	Universal- Beteiligungs- und Servicegesellschaft mbH 13F CIK 2057170 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	132,086	0.36%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
42	READ RANDOLPH C Insider CIK 1074613 · Jun 11, 2025 Director, issuer-wide	131,835	0.36%	+13,441	Jun 11, 2025	Director, issuer-wide
43	NEW YORK STATE COMMON RETIREMENT FUND 13F CIK 810265 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	131,586	0.35%	-3,300	Jun 30, 2026	carried, not yet filed for the newest quarter
44	Point72 Asset Management, L.P. 13F CIK 1603466 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	123,840	0.33%	+8,266	Jun 30, 2026	carried, not yet filed for the newest quarter
45	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	120,136	0.32%	+96,972	Jun 30, 2026	carried, not yet filed for the newest quarter
46	SUSQUEHANNA INTERNATIONAL GROUP, LLP 13F CIK 1446194 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	109,566	0.30%	+43,660	Jun 30, 2026	carried, not yet filed for the newest quarter
47	Vanguard Global Advisers, LLC 13F CIK 1811242 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	106,014	0.29%	+43,316	Jun 30, 2026	carried, not yet filed for the newest quarter
48	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	96,505	0.26%	-46,096	Jun 30, 2026	carried, not yet filed for the newest quarter
49	PRICE T ROWE ASSOCIATES INC /MD/ 13F CIK 80255 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	93,258	0.25%	+19,298	Jun 30, 2026	carried, not yet filed for the newest quarter
49.1	T. Rowe Price Extended Equity Market Index Fund Fund S000002090 · Registered fund · Jun 30, 2026 T. ROWE PRICE INDEX TRUST, INC., not summed	16,893	0.05%	0	Jun 30, 2026	T. ROWE PRICE INDEX TRUST, INC., not summed
49.2	T. Rowe Price Small-Cap Index Fund Fund S000051327 · Registered fund · Jun 30, 2026 T. ROWE PRICE INDEX TRUST, INC., not summed	4,861	0.01%	+1,183	Jun 30, 2026	T. ROWE PRICE INDEX TRUST, INC., not summed
50	PRUDENTIAL FINANCIAL INC 13F CIK 1137774 · Insurance company · Jun 30, 2026 carried, not yet filed for the newest quarter	92,986	0.25%	-250,119	Jun 30, 2026	carried, not yet filed for the newest quarter

16 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 276 holders

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Key facts CIK 1349436 CUSIP 80007P869 13F (30d) 21 filings 21 filers Visit website Investor relations