STEM · Stem, Inc. · Holdings

$3.04 -0.28 (-8.43%)

Market Cap

$30.90M

9.63M

Volume · Oct 22 200.12K Avg daily vol (3M) 142.15K

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.

Use institutional holdings through the 13F API or MCP → See every holder of STEM: 13F, 13D and 13G, insiders and funds →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 72

Total Value: $18,288,835

Total Shares: 2,341,940

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 73 13F filers

Top Holder

17.3%

of institutional value

Top 5

49.3%

of institutional value

Top 10

69.3%

of institutional value

HHI

763

Broadly held

Who Holds STEM

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 72 filers, like-for-like change +12.1%; actively managed books +15.2%; index-like books +7.8%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	44.5%	29	-1.3%	3	3
Exempt adviser	18.4%	1	+39.2%	0	0
Adviser	1.4%	1	-0.3%	0	1
Bank	7.3%	12	-16.3%	2	0
Non-US	0.0%	2	+0.2%	0	0
Holding company	9.8%	5	+16.5%	1	0
Benefit plan	0.0%	0	—	0	0
Insurer	0.0%	0	—	0	0
Unknown	18.5%	22	+50.9%	3	7

Style	Share	Filers	Change	New	Exited
Index-like	36.9%	11	+7.8%	1	0
Systematic-like	18.0%	8	+1.3%	3	0
Concentrated	0.1%	14	-91.7%	1	3
Diversified active	43.9%	38	+25.0%	4	8
Unknown	1.2%	1	0.0%	0	0
Not measured	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	25.0%	45	+5.3%	3	4
Medium turnover	17.3%	12	+16.1%	1	2
High turnover	38.6%	11	+18.6%	5	4
Unknown	19.1%	4	+6.2%	0	1
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	27.3%	7	+10.1%	1	3
Medium horizon	13.7%	11	+12.9%	2	2
Long horizon	34.3%	48	+12.7%	4	6
Unknown	24.7%	6	+13.2%	2	0
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	1.2%	9	-0.3%	1	1
$1B to $10B	12.2%	18	+6.0%	3	7
$10B to $100B	14.6%	14	+45.9%	1	2
$100B or more	72.0%	31	+8.3%	4	1
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Individuals and high net worth	0.9%	14	-2.4%	1	2
Pooled investment vehicles	14.0%	6	-14.4%	2	1
Registered funds and BDCs	24.5%	4	+4.1%	0	0
Pension and profit sharing plans	0.0%	2	0.0%	0	0
Governments and sovereign funds	5.0%	1	+20.7%	0	0
Other investment advisers	0.0%	1	-40.6%	0	0
Diversified	0.0%	1	0.0%	0	0
Insurance companies	0.0%	0	—	0	0
Unknown	55.5%	43	+25.8%	6	8

Private funds	Share	Filers	Change	New	Exited
Hedge funds	37.3%	10	+11.0%	3	1
Private equity funds	0.0%	1	0.0%	0	0
Securitized asset funds	0.0%	1	0.0%	0	0
Other private funds	4.7%	4	+2.7%	0	0
No private funds	20.9%	14	+4.0%	0	1
Real estate funds	0.0%	0	-100.0%	0	1
Private funds, type not stated	0.0%	0	—	0	0
Mixed private funds	0.0%	0	—	0	0
Unknown	37.1%	42	+20.1%	6	8

Location	Share	Filers	Change	New	Exited
United States	70.7%	60	+11.4%	8	9
Outside the US	29.3%	12	+13.9%	1	2

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Excluded 1 holder with no observed 2026-06-30 13F.

Conviction and Crowding

72 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

1.39% of filers hold it in their top 10

Mar 31, 2026: 1

Holders above 5%

median weight 0.000%

Mar 31, 2026: 1

Crowding

11.4%

of shares outstanding, 34th percentile

Mar 31, 2026: 10.3%

Private-fund advisers

10.3%

of shares outstanding

Institutional ownership

24.6%

25.8% of the estimated free float

Top 10 holders

71.5%

of 13F shares, Herfindahl 0.083

Active holders

+15.2%

like-for-like share change of active filers

5% stakes on record

0 13D, 2 13G (1 institutional, 0 passive, 0 exempt)

How long holders have held it value-weighted 7.5 quarters

Under 1 year 36.0% 1 to 3 years 41.3% 3 years or more 22.7% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost

$94.58

estimated per share

Mar 31, 2026: $113.17

Quarter-end price

$7.81

implied by 13F values

Estimated gain or loss

-91.7%

price against the estimated cost

Estimated at a loss

100.0%

of costed 13F value

Estimated cost covers 51.9% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shareholder Targets

13F filers that own its peers but not STEM, quarter ended Jun 30, 2026

STEM has no holder-overlap peers, so these filers hold the largest Utilities stocks: NEE, SO, CEG, DUK, AEP, SRE, ETR, D, XEL, VST, EXC, PCG, WEC, ED, PEG, CNP, NRG, ATO, AEE, EIX. 4,757 filers in all.

#	Filer	In peers	Of book	Largest peers
1	VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active	$52,220,185,816 20 held	2.35%	NEE, CEG, SRE
2	Invesco Ltd. Adviser, Diversified active	$18,426,645,853 20 held	1.46%	CEG, AEP, EXC
3	FRANKLIN RESOURCES INC Adviser, Diversified active	$16,830,001,259 20 held	3.69%	NEE, SO, NRG
4	Capital Research Global Investors Adviser, Diversified active	$16,597,038,374 12 held	2.32%	D, CNP, XEL
5	WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active	$13,901,514,666 16 held	2.40%	SRE, D, AEP
6	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Registered adviser, Diversified active	$11,883,131,645 19 held	4.06%	PCG, DUK, D
7	NORGES BANK Non-US, Index-like	$11,828,641,670 14 held	1.18%	NEE, SO, CEG
8	Capital World Investors Adviser, Diversified active	$11,613,692,641 11 held	1.38%	SO, EXC, CEG
9	Legal & General Group Plc Unknown, Index-like	$9,820,955,479 20 held	2.05%	NEE, DUK, SO
10	CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser, Diversified active	$9,137,863,378 20 held	1.22%	NEE, DUK, SO

Fund Ownership of STEM by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 4.82% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	0.98%	+0.03 pp	94,150	10
Index ETFs	3.85%	+0.37 pp	370,257	3
Active ETFs	0.00%	0.00 pp	0	0
Active funds	1.04%	-0.07 pp	100,091	6
Unclassified	0.00%	0.00 pp	0	0
All registered funds	5.86%	+0.33 pp	564,498	19

How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 27 Exempt adviser 1 Adviser 1 Bank 13 Non-US 2 Holding company 5 Unknown 23

Showing 74 of 74

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

15.43%

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

3.98%

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

2.55%

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

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

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%

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%

American Capital Advisory, LLC

$187

0.00%

Strategic Wealth Partners, Ltd.

$148

0.00%

CoreCap Advisors, LLC

$106

0.00%

Allworth Financial LP

$93

0.00%

Dogwood Wealth Management LLC

$85

0.00%

NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO

$78

0.00%

Ascentis Wealth Management, LLC

$54

0.00%

MATHER GROUP, LLC.

$42

0.00%

CITY HOLDING CO

$42

0.00%

IFP Advisors, Inc

$21

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

CKW FINANCIAL GROUP

0.00%

192

Key facts CIK 1758766 CUSIP 85859N300 13F (30d) 5 filings 5 filers Visit website Investor relations