Stem, Inc.
Stem, Inc. (STEM) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · STEM · as of Mar 31, 2025
Ownership Breakdown
165
Institutional Holders
▲ 11 vs Q4
$16.19M
Total Inst. Value
▼ $14.75M vs Q4
8.96M
Shares Outstanding
freeFloat 95.51%
46.18M
13F Shares Held
▼ 5.08M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
STEM largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. miscellaneous electrical machinery, equipment & supplies | 11.10M | 6.78% | 6.78% | $3.89B | May 2, 2025 | ▼ 333.1K |
VANGUARD GROUP INC miscellaneous electrical machinery, equipment & supplies | 8.62M | 5.26% | 5.26% | $3.02B | May 9, 2025 | ▲ 216.0K |
GEODE CAPITAL MANAGEMENT, LLC miscellaneous electrical machinery, equipment & supplies | 3.71M | 2.27% | 2.27% | $1.30B | May 13, 2025 | ▲ 309.9K |
STATE STREET CORP miscellaneous electrical machinery, equipment & supplies | 3.05M | 1.86% | 1.86% | $1.07B | May 15, 2025 | ▼ 48.7K |
UBS GROUP AG miscellaneous electrical machinery, equipment & supplies | 1.60M | 97.90% | 97.90% | $561.58M | May 13, 2025 | ▼ 2.99M |
AQR CAPITAL MANAGEMENT LLC miscellaneous electrical machinery, equipment & supplies | 1.48M | 90.47% | 90.47% | $519.42M | May 15, 2025 | ▲ 1.24M |
NORTHERN TRUST CORP miscellaneous electrical machinery, equipment & supplies | 1.24M | 75.72% | 75.72% | $434.70M | May 13, 2025 | ▼ 54.2K |
LIDO ADVISORS, LLC miscellaneous electrical machinery, equipment & supplies | 1.06M | 64.72% | 64.72% | $371.59M | May 15, 2025 | ▼ 15.0K |
HSBC HOLDINGS PLC miscellaneous electrical machinery, equipment & supplies | 873.3K | 53.28% | 53.28% | $307.39M | May 14, 2025 | ▲ 46.6K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP miscellaneous electrical machinery, equipment & supplies | 871.4K | 53.17% | 53.17% | $305.24M | May 14, 2025 | ▼ 217.2K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
17
Increased
+2.61M shares3
New Positions
first time holders27
Decreased
−6.57M shares0
Sold Out
fully exitedNet shares change (top 50)
3.96M
+2.61M / −6.57M
Net new holders
-7
3 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
STEM insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
7
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Tappin Matthew President, Software Products | Mar 11, 2026 | Sale | 402 | $10.83 | $4.4K | 2.8K | Form 4 ↗ |
Tappin Matthew President, Software Products | Mar 10, 2026 | Sale | 655 | $11.12 | $7.3K | 3.2K | Form 4 ↗ |
Laureles Saul R. Chief Legal Officer | Mar 10, 2026 | Sale | 942 | $11.12 | $10.5K | 27.4K | Form 4 ↗ |
Carlson Michael James President, Managed Services | Mar 10, 2026 | Sale | 2,079 | $11.12 | $23.1K | 19.5K | Form 4 ↗ |
Narayanan Arun Chief Executive Officer | Mar 10, 2026 | Sale | 5,145 | $11.12 | $57.2K | 13.0K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Stem, Inc. (STEM) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 4.49%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Stem, Inc. is BLACKROCK, INC., holding approximately 11.10 million shares — equal to 6.78% of outstanding shares — as of March 31, 2025.
A total of 165 institutional investors currently hold STEM stock, with a combined institutional value of approximately $16,189,567 as of the most recent 13F filing period.
Frequently asked questions
STEM ownershipStem, Inc. (STEM) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is BLACKROCK, INC. with a 6.78% stake. Company insiders hold 4.49%. Data sourced from SEC Form 13F as of March 31, 2025.