Logos Global Management LP
"13F equity value" = market value of this filer's US-listed long equity positions only. It excludes cash, bonds, non-US and short positions, so it understates a fund's true assets under management — often by a lot.
13F holdings are disclosed ~45 days after quarter-end, and they never reveal when within the quarter a fund actually bought. So any 13F-based summary is structurally late and blurred — this applies to every fund, including this one.
We backtested copying it anyway. Buying this fund's new positions the day each filing went public, over 24 quarters, returned -3.8% per quarter — versus +3.9% per quarter from simply owning every 13F stock. It beat that baseline in only 37.5% of quarters (excess t = -1.00, not statistically significant). Its filings tell you what it bought — not what you should buy.
Quarterly compounding, invested quarters only · entry 47 days after quarter-end (when 13F data becomes public)
Top 20 holdings of 63 · 2026 Q1
| Ticker | Value | Weight | QoQ |
|---|---|---|---|
| RVMD | $195M | | HOLD |
| ERAS | $180M | | TRIM |
| IDYA | $115M | | ADD |
| PRAX | $92M | | TRIM |
| CNTA | $84M | | ADD |
| TERN | $79M | | ADD |
| ABVX | $75M | | ADD |
| TNGX | $63M | | TRIM |
| CYTK | $58M | | ADD |
| OLMA | $48M | | HOLD |
| UTHR | $47M | | NEW |
| IMCR | $45M | | ADD |
| MDGL | $44M | | NEW |
| RYTM | $39M | | ADD |
| CGON | $39M | | ADD |
| MAZE | $37M | | ADD |
| BIIB | $37M | | HOLD |
| IRON | $36M | | ADD |
| DNTH | $34M | | ADD |
| OCUL | $33M | | ADD |
QoQ vs previous quarter's share count · NEW = new position · ADD/TRIM = ±2% shares · HOLD = unchanged.
New positions in 2026 Q1
Method & Limitations
Method: a "new position" = held this quarter, absent last quarter (options excluded; stocks with <50 prior holders excluded to filter spin-off artifacts). Entry 47 days after quarter-end — the first day the public could act on the filing. Benchmark = equal-weighted universe of all 13F-held stocks. Limitations: quarterly snapshots can't see intra-quarter trades; survivorship bias — funds that shut down are absent, which flatters the sample. Statistics, not advice.