Turnstone Biologics Corp.
TSBXDelisted Aug 11, 2025- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001764974
Turnstone Biologics Corp. was delisted on Aug 11, 2025; its insiders filed their last Form 4 on Aug 12, 2025; 23 institutions reported holding it in 13F filings for Q2 2025, worth $3.03M in total; no superinvestor held it.
Key figures
- Insider buys
- 0
- Open market, last 90 days
- Insider sells
- 0
- Open market, last 90 days
- 13F holders
- 23
- Q2 2025, 0 vs. previous quarter
- 13F value
- $3.03M
- Reported value at the end of Q2 2025
- Superinvestors holding
- 0
- At the end of Q2 2025
Superinvestors holding TSBX, Q2 2025
No superinvestor reported holding TSBX at the end of Q2 2025.
Latest insider trades
Open-market purchases and sales by Turnstone Biologics Corp. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jul 27, 2023 (view filing)4:23 PM ET | Jul 25 | 2 days | Versant Affiliates Fund V, L.P. and 9 others10% Owner | PPurchase | +225.0K | $12.00 | +$2.70M | New position82.0K after | 4 lotsDuplicate filing |
| Jul 27, 2023 (view filing) | Jul 25 | 2 days | Jerel DavisDirector, 10% Owner | PPurchase | +225.0K | $12.00 | +$2.70M | New position82.0K after | 4 lots |
| Jul 24, 2023 (view filing)4:38 PM ET | Jul 20 | 4 days | OrbiMed Advisors LLC and 1 otherDirector, 10% Owner | PPurchase | +416.7K | $12.00 | +$5.00M | +15.5%3.10M after | Duplicate filing |
| Jul 24, 2023 (view filing) | Jul 20 | 4 days | Gupta RishiDirector, 10% Owner | PPurchase | +416.7K | $12.00 | +$5.00M | +15.5%3.10M after |
Top 10 13F holders, Q2 2025
The largest institutional positions in Turnstone Biologics Corp. at the end of Q2 2025; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| OrbiMed Advisors LLC | 3,099,265 | $1.11M | 0.03% | 00.0% | Unchanged |
| FMR LLC | 1,133,987 | $407.1K | 0.00% | 00.0% | Unchanged |
| BML Capital Management, LLC | 1,103,386 | $396.1K | 0.30% | 00.0% | Unchanged |
| Takeda Pharmaceutical Co Ltd | 895,824 | $321.6K | 1.64% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 816,923 | $293.3K | 0.00% | −62,010−7.1% | Reduced |
| 72 Investment Holdings, LLC | 549,980 | $197.4K | 0.52% | 00.0% | Unchanged |
| Citadel Advisors LLC | 208,887 | $75.0K | 0.00% | +208,887 | New |
| Geode Capital Management, LLC | 130,077 | $46.7K | 0.00% | −6,703−4.9% | Reduced |
| Deltec Asset Management LLC | 106,057 | $38.1K | 0.01% | +106,057 | New |
| Vanguard Group Inc | 83,926 | $30.1K | 0.00% | −431,161−83.7% | Reduced |