Surface Oncology, Inc.
SURFDelisted Sep 8, 2023- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001718108
Surface Oncology, Inc. was delisted on Sep 8, 2023; its insiders filed their last Form 4 on Sep 8, 2023; 62 institutions reported holding it in 13F filings for Q2 2023, worth $16.9M in total; ARK Invest was the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in Surface Oncology, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
SURF is no longer listed, and 13F filings after Q2 2023 list far fewer holders. See Q2 2023
- Institutional holders
- 0
- 0 vs. Q4 2025
- Shares held
- 0
- 0 vs. Q4 2025
- Total value
- $0
- $0 vs. Q4 2025
- New holders
- 0
- 0 more added
- Sold out
- 0
- 0 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SURF on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 0 | $0 |
| Q1 2026 | 0 | $0 |
| Q4 2025 | 1 | $21.0K |
| Q3 2025 | 1 | $21.0K |
| Q2 2025 | 1 | $21.0K |
| Q1 2025 | 1 | $21.0K |
| Q4 2024 | 1 | $21.0K |
| Q3 2024 | 1 | $21.0K |
| Q2 2024 | 1 | $21.0K |
| Q1 2024 | 1 | $21.0K |
| Q4 2023 | 1 | $21.0K |
| Q3 2023 | 2 | $21.3K |
| Q2 2023 | 62 | $16.9M |
| Q1 2023 | 72 | $18.8M |
| Q4 2022 | 80 | $23.4M |
| Q3 2022 | 80 | $32.8M |
| Q2 2022 | 85 | $48.6M |
| Q1 2022 | 104 | $93.8M |
| Q4 2021 | 107 | $118.0M |
| Q3 2021 | 92 | $182.2M |
| Q2 2021 | 97 | $168.5M |
| Q1 2021 | 91 | $147.5M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Surface Oncology, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Beddow Capital Management Inc | – | – | – | – | Not filed |