Stem, Inc.: shareholders and insiders

STEMNYSETechnology · Services-Computer Integrated Systems Design

Price

$2.24

November 13, 2026Market cap $22M

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What Ploutos Investor adds for Stem

Part of Ploutos Investor, €9.99 a month

See the plans

The full history: 7 fiscal years, from 2019
The estimated fair value, with its range and its certainty
The full analysis, 18 a month
More questions to the chat on its filings
Excel with every year
An email when it reports, changes its dividend or an officer buys

Notes on these figures

The share price has fallen 59% since Aug 12, 2026, when the 10-Q these figures come from was filed ($5.45 then, $2.24 on Nov 13, 2026). The figures date from before that move.10-Q
The interest the company pays is far more than the debt we can read would cost, so part of its borrowing is missing from the figures. We leave out the debt, net cash, enterprise value and the multiples built on them.

Insiders and their shares

Purchases and sales by officers and directors, from their own Form 4 filings.

Reading the newest filings from the SEC. This part fills in on its own in a few seconds.

Major holders (over 5%)

Whoever comes to own more than 5% of a class of shares reports it to the SEC on Schedule 13D or 13G. Here is each holder's latest filing.

0 Holders over 5%Jul 29, 2025 Latest filing

Nobody reports more than 5% today: those who filed have since fallen to 5% or less.

Fell to 5% or less (2)

Holders whose latest filing says they hold 5% or less. After it they need not file again, so what they hold today is not known.

The Vanguard Group4.64%Jul 29, 202513G/A
BlackRock, Inc.2.10%Jul 18, 202513G/A

From the Schedule 13D and 13G filed with the SEC since Dec 18, 2024, when they became structured data. A holder who has filed nothing since then is not shown here. A 13D is updated within two business days of any material change, a 13G up to 45 days after the quarter of the change, so the shares are those of the filing. The large managers also appear in the 13Fs.

Well-known managers

Which of the about 30 investment managers we track held the shares at the quarter end, and what they changed from the quarter before.

Sep 30, 2026 quarter end

Citadel Advisors (Griffin)
In the quarter
Renaissance Technologies
In the quarter-36%

Manager	Shares	In the quarter	Value	% of their portfolio
Citadel Advisors (Griffin)	23.7K		$200.0K	0.00%
Renaissance Technologies	42.4K	-36%	$200.0K	0.00%

From the 13Fs managers file with the SEC up to 45 days after each quarter end. They show only long positions on that day, not short sales or what has changed since. No recent 13F: Pershing Square (Ackman), Scion (Burry).

Short interest

How many of the company's shares have been sold borrowed and not yet bought back, twice a month.

On Oct 15, 2026, 12.4% of its shares outstanding were held short, +4.0% since the report before.

Shares held short: 1.20M
: 12.4%
Since the report before1.15M on Sep 30, 2026: +4.0%
: 8.0
: 149.4K
More days to cover thanof 4,578 US-listed companies with enough volume: 84%
Report date: Oct 15, 2026

Oct 31, 2023: Shares held short 39.65M
Nov 15, 2023: Shares held short 41.53M
Nov 30, 2023: Shares held short 42.67M
Dec 15, 2023: Shares held short 40.68M
Dec 29, 2023: Shares held short 42.50M
Jan 12, 2024: Shares held short 39.54M
Jan 31, 2024: Shares held short 39.55M
Feb 15, 2024: Shares held short 39.70M
Feb 29, 2024: Shares held short 39.33M
Mar 15, 2024: Shares held short 38.93M
Mar 28, 2024: Shares held short 37.24M
Apr 15, 2024: Shares held short 37.89M
Apr 30, 2024: Shares held short 36.87M
May 15, 2024: Shares held short 36.19M
May 31, 2024: Shares held short 32.87M
Jun 14, 2024: Shares held short 32.72M
Jun 28, 2024: Shares held short 35.00M
Jul 15, 2024: Shares held short 35.71M
Jul 31, 2024: Shares held short 35.45M
Aug 15, 2024: Shares held short 32.13M
Aug 30, 2024: Shares held short 31.80M
Sep 13, 2024: Shares held short 34.05M
Sep 30, 2024: Shares held short 34.23M
Oct 15, 2024: Shares held short 35.36M
Oct 31, 2024: Shares held short 37.81M
Nov 15, 2024: Shares held short 34.13M
Nov 29, 2024: Shares held short 34.91M
Dec 13, 2024: Shares held short 34.99M
Dec 31, 2024: Shares held short 47.35M
Jan 15, 2025: Shares held short 40.64M
Jan 31, 2025: Shares held short 39.00M
Feb 14, 2025: Shares held short 39.43M
Feb 28, 2025: Shares held short 41.55M
Mar 14, 2025: Shares held short 38.51M
Mar 31, 2025: Shares held short 39.87M
Apr 15, 2025: Shares held short 40.63M
Apr 30, 2025: Shares held short 38.07M
May 15, 2025: Shares held short 36.61M
May 30, 2025: Shares held short 33.31M
Jun 13, 2025: Shares held short 33.42M
Jun 30, 2025: Shares held short 1.56M
Jul 15, 2025: Shares held short 1.45M
Jul 31, 2025: Shares held short 1.45M
Aug 15, 2025: Shares held short 1.48M
Aug 29, 2025: Shares held short 1.19M
Sep 15, 2025: Shares held short 1.11M
Sep 30, 2025: Shares held short 988.6K
Oct 15, 2025: Shares held short 1.01M
Oct 31, 2025: Shares held short 1.13M
Nov 14, 2025: Shares held short 1.14M
Nov 28, 2025: Shares held short 1.18M
Dec 15, 2025: Shares held short 1.07M
Dec 31, 2025: Shares held short 1.04M
Jan 15, 2026: Shares held short 979.6K
Jan 30, 2026: Shares held short 1.03M
Feb 13, 2026: Shares held short 1.02M
Feb 27, 2026: Shares held short 1.01M
Mar 13, 2026: Shares held short 1.07M
Mar 31, 2026: Shares held short 1.04M
Apr 15, 2026: Shares held short 1.05M
Apr 30, 2026: Shares held short 1.06M
May 15, 2026: Shares held short 1.08M
May 29, 2026: Shares held short 956.8K
Jun 15, 2026: Shares held short 1.07M
Jun 30, 2026: Shares held short 1.04M
Jul 15, 2026: Shares held short 1.11M
Jul 31, 2026: Shares held short 1.12M
Aug 14, 2026: Shares held short 1.13M
Aug 31, 2026: Shares held short 1.08M
Sep 15, 2026: Shares held short 1.18M
Sep 30, 2026: Shares held short 1.15M
Oct 15, 2026: Shares held short 1.20M

As brokers report them to the regulator twice a month, mid-month and at month end, published about eight business days later. A short position is shares sold borrowed and not yet bought back. The share count is the one the company's market value is figured on, from its filings. Days to cover is the shares held short over the average daily volume of the weeks between two reports.

Short sales in daily trading52.4% of the shares in the last 14 sessions' reported trades were short sales.

In the last 14 sessions, 52.4% of the shares in the reported trades were short sales, against 57.2% in the 14 before.

Last 14 sessionsOct 27, 2026 – Nov 13, 2026: 52.4%
The 14 beforeOct 7, 2026 – Oct 26, 2026: 57.2%
Change: -4.8 pts
Short sales a dayon average, of 195.7K shares: 102.5K
More than atof 3,649 US-listed companies, same days: 59%
Median of alleight in ten from 34.6% to 63.4%: 50.1%

This is not the number of shares sold short today: it measures short sales within each day's trading, and only trades made off the exchanges. Much of it is market makers, who sell shares they do not have to fill buyers' orders and cover soon after, so for a heavily traded stock the share is often around half.

The ETFs that hold it

Which of the 269 US equity ETFs we track hold the stock, and at what weight, from the funds' N-PORT filings.

2 ETFs holding it0.00% The largest weight (VXF)

VXFVanguard Extended Market Index Fund
Weight in the fund0.00%
VTIVanguard Total Stock Market Index Fund
Weight in the fund0.00%

ETF	Weight in the fund	Holdings as of
VXFVanguard Extended Market Index Fund	0.00%	Jun 30, 2026
VTIVanguard Total Stock Market Index Fund	0.00%	Jun 30, 2026

2 of the 269 ETFs we track, not of every ETF on the market. The ten largest weights. Positions as each fund filed them in its latest N-PORT.

Institutional investors by quarter

Every manager that reports positions to the SEC (Form 13F), quarter by quarter: how many hold the stock, how many shares and dollars between them, and who entered, left, added or trimmed during the quarter.

73 Managers, Q2 2026$17M Value of their positions

Institutional investors by quarter

The fund managers holding STEM, quarter by quarter, from Q1 2013 to Q2 2025, 41 more quarters

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Q2 2026: 73 managers held 2.20M shares, worth $17M. During the quarter 10 opened a position, 13 closed one, 15 added and 18 trimmed.

The largest holders, Q2 2026

Marshall Wace
In the quarter+39%
Vanguard Capital Management
In the quarter+5.1%
BlackRock
In the quarter+22%
Trexquant Investment
In the quarter+21%
Two Sigma Investments
In the quarter-41%
Gsa Capital Partners
In the quarter-5.7%
BNP Paribas Financial Markets
In the quarter+75%
Geode Capital Management
In the quarter+1.0%
Acadian Asset Management
In the quarter+607%
Renaissance Technologies
In the quarter+13%

Manager	Shares	In the quarter	Value
Marshall Wace	405.6K	+39%	$3.2M
Vanguard Capital Management	361.2K	+5.1%	$2.8M
BlackRock	164.5K	+22%	$1.3M
Trexquant Investment	110.6K	+21%	$864.1K
Two Sigma Investments	103.2K	-41%	$806.3K
Gsa Capital Partners	102.3K	-5.7%	$799.0K
BNP Paribas Financial Markets	93.1K	+75%	$727.1K
Geode Capital Management	93.0K	+1.0%	$726.8K
Acadian Asset Management	74.6K	+607%	$579.0K
Renaissance Technologies	66.5K	+13%	$519.2K

From the SEC's Form 13F data sets, Q3 2025 to Q2 2026: the long positions of every manager with more than $100 million under management, as filed up to 45 days after each quarter end. Short positions and options are not in them. Shares as reported each quarter, not adjusted for splits. The stock is matched by its CUSIP, through the SEC's fails-to-deliver files.

Pay against performance, the say-on-pay vote, buybacks by quarter and trading plans are read for S&P 500 companies only.

The full analysis

What do Stem's filings show?

Who buys and sells is one part of Stem's picture. The full Ploutos AI analysis reads everything the company has filed and shows what stands behind it, with a source for every figure.

A fair value range built from the filings
Earnings quality, debt and red flags
Insider and institutional moves
The case for and the case against

Questions about STEM's shareholders

Didn't find what you were looking for?

Ask us

Which well-known managers hold STEM?

2 of the managers we track held the shares on Sep 30, 2026. The largest position was Citadel Advisors (Griffin)'s, worth $200.0K.

Is every insider transaction a purchase or a sale?

No. Many are part of their pay: share awards, option exercises and shares the company keeps for the tax. Only code P is a purchase with their own money, and code S a sale on the market.

The other pages on US stocks, free to read. On the company pages, the last three fiscal years are open to everyone, five with a free account, and every year with Ploutos Investor.

US stocksThe market today, the sectors, the largest companies and the week's results.The market's sectorsThe 11 sectors side by side: returns, share of the market, median P/E and dividend.Compare stocksTwo companies side by side: price over up to ten years, with and without dividends, and every figure.US dividend stocksEach dividend's yield next to whether the company's cash covers it and whether it was ever cut.

The figures come from the company's SEC filings and the share price, and describe what it has reported. They are not a score or a fair value.