Siguler Guff Advisers, LLC
- SEC CIK
- 0001328551
- Latest filing
- Oct 15, 2025
The latest 13F from Siguler Guff Advisers, LLC covers Q3 2025 (filed Oct 15, 2025): 2 long positions worth $56.1M. The top 10 holdings make up 100.0% of the portfolio, and the largest is SEMrush Holdings, Inc. (SEMR) at 91.7%. Livermore has 11 filings on Form 13F from this institution, going back to Q1 2023.
What changed in Q3 2025
Share counts compared with Q2 2025: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.
- New
- 0
- Added
- 0
- Reduced
- 0
- Sold out
- 0
Top 5 holdings
Share of this quarter's portfolio value
Biggest buys
New and added positions, by estimated amount bought
None this quarter.
Largest weight increases
New and added positions, by percentage points of the portfolio gained
None this quarter.
Biggest sells
Reduced and sold-out positions, by estimated amount sold
None this quarter.
Largest weight decreases
Reduced and sold-out positions, by percentage points of the portfolio lost
None this quarter.
Metrics
13F metrics for Q3 2025, computed only from the numbers in the filings. Definitions below.
- Portfolio value
- $56.1M
- −$13.8M (−19.7%) vs. prior quarter
- Positions
- 2
- 0 vs. prior quarter
- Top 10 concentration
- 100.0%
- Top 10 as share of value
- Turnover
- 0.0%
- Q3 2025, one quarter
- Average holding period
- 11.0 quarters
- Weighted by value
How these are calculated
- Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
- Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
- Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
- Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q1 2023), so positions held before then are understated.
13F filings by quarter
11 quarters, going back to Q1 2023. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.
Peak $268.9M (Q3 2024)
| Quarter | Filed | Positions | Value | Top 3 holdings | Changes | Filing |
|---|---|---|---|---|---|---|
| Q3 2025 | Oct 15, 2025 | 2 | $56.1M | SEMRSVC | vs. Q2 2025 | SEC |
| Q2 2025 | Jul 29, 2025 | 2 | $69.9M | SEMRSVC | vs. Q1 2025 | SEC |
| Q1 2025 | Apr 29, 2025 | 2 | $72.3M | SEMRSVC | vs. Q4 2024 | SEC |
| Q4 2024 | Jan 23, 2025 | 4 | $200.8M | SEMRRPRXFYBR | vs. Q3 2024 | SEC |
| Q3 2024 | Oct 28, 2024 | 5 | $268.9M | SEMRRPRXFYBR | vs. Q2 2024 | SEC |
| Q2 2024 | Jul 25, 2024 | 5 | $233.5M | SEMRRPRXFYBR | vs. Q1 2024 | SEC |
| Q1 2024 | Apr 26, 2024 | 6 | $251.0M | RPRXSEMRFYBR | vs. Q4 2023 | SEC |
| Q4 2023 | Jan 29, 2024 | 6 | $250.3M | SEMRRPRXFYBR | vs. Q3 2023 | SEC |
| Q3 2023 | Oct 19, 2023 | 6 | $195.7M | RPRXSEMRFYBR | vs. Q2 2023 | SEC |
| Q2 2023 | Jul 31, 2023 | 7 | $225.9M | RPRXSEMRFYBR | vs. Q1 2023 | SEC |
| Q1 2023 | May 5, 2023 | 6 | $256.5M | RPRXSEMRFYBR | – | SEC |
13D and 13G filings
Companies where Siguler Guff Advisers, LLC reports owning 5% or more on Schedule 13D or 13G, and its latest filings.
Current stakes of 5% or more
Siguler Guff Advisers, LLC does not currently report owning 5% or more of any company.
Latest filings
4 filings on file made by Siguler Guff Advisers, LLC or listing it as a reporting person, newest first.
| Company | Filed (ET) | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| SEMRSEMrush Holdings, Inc. | Apr 14, 202610:51 AM ET | 13G/A | 0.00%0 shares | –Below 5% | Mar 31, 2026 | SEC |
| SEMRSEMrush Holdings, Inc. | Oct 10, 2024 | 13GOld format | – | New | – | SEC |
| PNBKPatriot National Bancorp Inc | Oct 10, 2024 | 13G/AOld format | – | – | – | SEC |
| FATHFathom Digital Manufacturing Corp | May 31, 2024 | 13G/AOld format | – | – | – | SEC |