SEMR Institutional Ownership & Shareholders
SEMRUSH HOLDINGS INC-A (SEMR) is currently held by 5 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $13.31M based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026.
Janus Henderson Group Plc is currently the largest disclosed institutional shareholder of SEMR tracked by InsiderSet, reporting ownership valued at approximately $9.44M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $9.48M, representing an estimated gain of +0.46% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed SEMR value among the investors covered in this analysis. Major shareholders include Janus Henderson Group Plc, Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc, Brooklyn Investment Group, and several other long-term asset managers with concentrated positions in SEMRUSH HOLDINGS INC-A (SEMR).
This page ranks the largest institutional SEMR shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
5
Total Reported Value
$13.31M
Largest Holder
Janus Henderson Group Plc
Largest Position
$9.44M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
188
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Janus Henderson Group Plc | 0.00% | 790,144 | $9,438,270 | $9,481,728 | +$43,458 | +0.46% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 277,185 | $3,309,589 | $3,326,220 | +$16,631 | +0.50% | |
| Brooklyn Investment Group | 0.02% | 42,803 | $511,068 | $513,636 | +$2,568 | +0.50% | |
| Cwm, Llc | 0.00% | 4,324 | $51,629 | $51,888 | +$259 | +0.50% | |
| Sunbelt Securities, Inc. | 0.00% | 20 | $239 | $240 | +$1 | +0.42% |
Frequently asked questions about SEMR
Who are the largest institutional holders of SEMR?
The largest institutional holders of SEMR reported in the latest SEC Form 13F filings include Janus Henderson Group Plc, Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc, Brooklyn Investment Group, Cwm, Llc, and Sunbelt Securities, Inc.. InsiderSet ranks institutional holders by their latest reported SEMR position.
What is SEMR institutional ownership?
This page tracks SEMR positions reported by institutional investment managers through SEC Form 13F. SEMRUSH HOLDINGS INC-A (SEMR) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own SEMR?
InsiderSet currently tracks 5 institutional managers reporting SEMR holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of SEMR shareholders.
How much SEMR stock do institutions own?
Institutional investment managers disclosed approximately $13.31M in SEMR holdings for Q1 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was SEMR institutional ownership last updated?
The latest SEMR institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended March 31, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional SEMR holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its SEMR position after the reporting date.
Are institutions buying or selling SEMR?
Institutional buying and selling can be analyzed by comparing SEMR positions across consecutive 13F reporting periods. InsiderSet's SEMR Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View SEMR ownership changes.
How has SEMR institutional ownership changed over time?
InsiderSet tracks SEMR institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.