STEM · Stem, Inc.

$5.67 +0.23 (+4.14%)

Market Cap

$52.37M

9.63M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Quarter:

Holders: 74

Total Value: $18,291,853

Total Shares: 2,342,112

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 74 13F filers · Δ vs Mar 31, 2026

Top Holder

17.3%

+2.0 pts

Top 5

49.3%

−0.5 pts

Top 10

69.2%

+0.2 pts

HHI

763

Broadly held+79

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: -4

Institutional value: -7.8%

Shares held: +4.3%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Large MARSHALL WACE, LLP	+114,268	405,608
Large ACADIAN ASSET MANAGEMENT LLC	+64,083	74,646
Mega BNP PARIBAS ARBITRAGE, SA	+40,000	93,094
Mega BlackRock, Inc.	+29,765	164,477
Mid XTX Topco Ltd	+19,310	29,482

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mega TWO SIGMA INVESTMENTS, LP	−72,155	103,234
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	−59,700	113,600
Mega UBS Group AG	−28,101	25,132
Mega MORGAN STANLEY	−10,374	37,661
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC	−10,000	59,600

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mid Longaeva Partners L.P.	48,186	$376,332
Mid Engineers Gate Manager LP	12,700	$99,187
Mega GOLDMAN SACHS GROUP INC	11,346	$88,612
Large Balyasny Asset Management L.P.	9,717	$75,889
Mid SIMPLEX TRADING, LLC	840	$6,560

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Small CSS LLC/IL	70,000	$618,800
Mega CANADA PENSION PLAN INVESTMENT BOARD	21,300	$188,292
Mid Virtu Financial LLC	18,753	$165,776
Mid Centiva Capital, LP	14,967	$132,308
Mid Susquehanna Portfolio Strategies, LLC	11,955	$105,682

Filter: New 9 Increased 17 Reduced 20 Sold out 13 Unchanged 28

Showing 76 of 76

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

MARSHALL WACE, LLP

$3,167,797

17.32%

405,608

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	405,608	$3,167,797	100.0%	Other

VANGUARD CAPITAL MANAGEMENT LLC

$2,821,354

15.42%

361,249

BlackRock, Inc.

$1,284,563

7.02%

164,477

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	1,638	$12,792	1.0%	Sole
BlackRock Investment Management, LLC	2,634	$20,571	1.6%	Sole
BlackRock Fund Advisors	27,987	$218,578	17.0%	Sole
BlackRock Institutional Trust Company, N.A.	132,182	$1,032,341	80.4%	Sole
Aperio Group, LLC	36	$281	0.0%	Sole

Trexquant Investment LP

$864,098

4.72%

110,640

TWO SIGMA INVESTMENTS, LP

$806,257

4.41%

103,234

GSA CAPITAL PARTNERS LLP

$799,127

4.37%

102,321

BNP PARIBAS ARBITRAGE, SA

$727,064

3.97%

93,094

GEODE CAPITAL MANAGEMENT, LLC

$726,439

3.97%

93,014

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	18,763	$146,539	20.2%	Defined
Held directly	74,251	$579,900	79.8%	Defined

ACADIAN ASSET MANAGEMENT LLC

$582,985

3.19%

74,646

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	74,646	$582,985	100.0%	Defined

RENAISSANCE TECHNOLOGIES LLC

$519,224

2.84%

66,482

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$503,745

2.75%

64,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	64,500	$503,745	100.0%	Other

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$465,476

2.54%

59,600

VANGUARD FIDUCIARY TRUST CO

$444,373

2.43%

56,898

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$383,471

2.10%

49,100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	49,100	$383,471	100.0%	Other

Longaeva Partners L.P.

$376,332

2.06%

48,186

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Balyasny Asset Management L.P.	48,186	$376,332	100.0%	Other

STATE STREET CORP

$298,951

1.63%

38,278

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SSGA FUNDS MANAGEMENT, INC. joint	38,278	$298,951	100.0%	Defined

MORGAN STANLEY

$294,130

1.61%

37,661

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	31	$242	0.1%	Defined
MORGAN STANLEY & CO. LLC	22,095	$172,561	58.7%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	154	$1,202	0.4%	Defined
MORGAN STANLEY SMITH BARNEY LLC	15,208	$118,774	40.4%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	173	$1,351	0.5%	Defined

COHEN & STEERS, INC.

$249,037

1.36%

31,887

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Cohen & Steers Capital Management Inc	31,887	$249,037	100.0%	Sole

ROYAL BANK OF CANADA

$231,456

1.27%

29,636

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	2,483	$19,392	8.4%	Defined
RBC Dominion Securities Inc.	1,697	$13,253	5.7%	Defined
Held directly	25,456	$198,811	85.9%	Sole

XTX Topco Ltd

$230,254

1.26%

29,482

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	29,482	$230,254	100.0%	Defined

CITIGROUP INC

$222,788

1.22%

28,526

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	28,526	$222,788	100.0%	Defined

HSBC HOLDINGS PLC

$221,991

1.21%

28,424

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
HSBC BANK PLC	28,424	$221,991	100.0%	Defined

PRICE T ROWE ASSOCIATES INC /MD/

$208,175

1.14%

26,655

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	26,655	$208,175	100.0%	Defined

Keyframe Capital Partners, L.P.

$202,466

1.11%

25,924

CITADEL ADVISORS LLC

$198,374

1.08%

25,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	25,400	$198,374	100.0%	Defined

UBS Group AG

$196,279

1.07%

25,132

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	2,037	$15,908	8.1%	Defined
UBS AG	23,095	$180,371	91.9%	Defined

CITADEL ADVISORS LLC

$185,307

1.01%

23,727

NOMURA HOLDINGS INC

$185,198

1.01%

23,713

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NOMURA GLOBAL FINANCIAL PRODUCTS INC	23,713	$185,198	100.0%	Defined

NORTHERN TRUST CORP

$165,891

0.91%

21,241

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	21,241	$165,891	100.0%	Defined

HighTower Advisors, LLC

$126,108

0.69%

16,147

Engineers Gate Manager LP

$99,187

0.54%

12,700

BANK OF AMERICA CORP /DE/

$88,916

0.49%

11,385

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	11,385	$88,916	100.0%	Defined

GOLDMAN SACHS GROUP INC

$88,612

0.48%

11,346

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	11,346	$88,612	100.0%	Defined

Balyasny Asset Management L.P.

$75,889

0.41%

9,717

Zweig-DiMenna Associates LLC

$64,838

0.35%

8,302

WELLS FARGO & COMPANY/MN

$36,158

0.20%

4,630

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	538	$4,201	11.6%	Defined
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	2,383	$18,611	51.5%	Defined
WELLS FARGO CLEARING SERVICES, LLC	285	$2,225	6.2%	Defined
Wells Fargo Securities, LLC	1,424	$11,121	30.8%	Defined

GROUP ONE TRADING LLC

$31,661

0.17%

4,054

Steward Partners Investment Advisory, LLC

$27,233

0.15%

3,487

Vanguard Global Advisers, LLC

$22,274

0.12%

2,852

INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC

$14,604

0.08%

1,870

PNC FINANCIAL SERVICES GROUP, INC.

$8,434

0.05%

1,080

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PNC Bank, National Association	1,080	$8,434	100.0%	Defined

SIMPLEX TRADING, LLC

$6,560

0.04%

840

JPMORGAN CHASE & CO

$5,560

0.03%

712

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	219	$1,710	30.8%	Defined
J.P. Morgan Securities LLC	493	$3,850	69.2%	Defined

OSAIC HOLDINGS, INC.

$5,489

0.03%

703

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	701	$5,474	99.7%	Defined
Osaic Advisory Services, LLC	2	$15	0.3%	Defined

FMR LLC

$5,060

0.03%

648

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	638	$4,982	98.5%	Defined
STRATEGIC ADVISERS LLC	10	$78	1.5%	Defined

NATIONAL BANK OF CANADA /FI/

$4,014

0.02%

514

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
National Bank Financial Inc.	514	$4,014	100.0%	Defined

Rockefeller Capital Management L.P.

$3,061

0.02%

392

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ROCKEFELLER FINANCIAL LLC	392	$3,061	100.0%	Defined

DEUTSCHE BANK AG\

$2,710

0.01%

347

Hurley Capital, LLC

$1,913

0.01%

245

Federation des caisses Desjardins du Quebec

$1,554

0.01%

199

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Desjardins Securities inc.	199	$1,554	100.0%	Defined

CKW FINANCIAL GROUP

$1,499

0.01%

192

BARCLAYS PLC

$1,304

0.01%

167

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS CAPITAL INC.	167	$1,304	100.0%	Defined

SBI Securities Co., Ltd.

$1,163

0.01%

149

GAMMA Investing LLC

$937

0.01%

120

Cornerstone Financial Management LLC

$515

0.00%

UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC

$484

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Group AG	62	$484	100.0%	Defined

US BANCORP \DE\

$468

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
US BANK NATIONAL ASSOCIATION	60	$468	100.0%	Defined

HARBOUR INVESTMENTS, INC.

$445

0.00%

NISA INVESTMENT ADVISORS, LLC

$390

0.00%

JONES FINANCIAL COMPANIES LLLP

$281

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	36	$281	100.0%	Sole

Wilmington Savings Fund Society, FSB

$273

0.00%

Quent Capital, LLC

$195

0.00%

HM PAYSON & CO

$195

0.00%

Strategic Investment Solutions, Inc. /IL

$195

0.00%

CoreCap Advisors, LLC

$195

0.00%

American Capital Advisory, LLC

$187

0.00%

Strategic Wealth Partners, Ltd.

$148

0.00%

Integrated Wealth Concepts LLC

$93

0.00%

Allworth Financial LP

$93

0.00%

Dogwood Wealth Management LLC

$85

0.00%

NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO

$78

0.00%

MATHER GROUP, LLC.

$78

0.00%

Ascentis Wealth Management, LLC

$54

0.00%

IFP Advisors, Inc

$39

0.00%

Smallwood Wealth Investment Management, LLC

$15

0.00%

Russell Investments Group, Ltd.

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC	1	$7	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	18,753	$165,776	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Tower Research Capital Investments LLC	448	$3,960	36.2%	Other
Latour Trading LLC (Latour)	788	$6,965	63.8%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
FEDERATED MDTA LLC	98	$866	100.0%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Optiver VOF	87	$769	100.0%	Defined

Key facts CIK 1758766 CUSIP 85859N300 13F (30d) 72 filings 62 filers Visit website Investor relations