Propel Bio Management, LLC — 13F Holdings & Portfolio
CIK 1969764 · latest 13F-HR filed 2026-05-14
Propel Bio Management, LLC manages $158.7M in 13F-reported U.S. long-equity assets across 38 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are PAGP (19.02%), ACHV (7.17%), PHAT (5.90%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 22 new positions, exited 4, added to 7, and trimmed 7.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$158.7M
Long-equity book
38
Distinct positions
2026-03-31
Filed 2026-05-14
+22 / −4 / ↑7 / ↓7
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- PLAINS GP HLDGS L P$5.8M +23.9%
- DELCATH SYS INC$4.7M +106.8%
- ZEVRA THERAPEUTICS INC$2.1M +362.8%
- ABEONA THERAPEUTICS INC$1.6M +37.2%
- SAB BIOTHERAPEUTICS INC$1.4M +59.2%
Top Trims
- ACHIEVE LIFE SCIENCES INC-$7.4M -39.6%
- VIRIDIAN THERAPEUTICS INC-$4.7M -53.5%
- MILESTONE PHARMACEUTICALS IN-$3.2M -38.9%
- PHATHOM PHARMACEUTICALS INC-$2.9M -23.9%
- COMPASS PATHWAYS PLC-$1.8M -30.7%
New Positions
- CORCEPT THERAPEUTICS INC$6.0M
- VOR BIOPHARMA INC$5.6M
- ORCHESTRA BIOMED HLDGS INC$3.8M
- 4D MOLECULAR THERAPEUTICS IN$3.6M
- OCULAR THERAPEUTIX INC$3.2M
Exited Positions
- NEKTAR THERAPEUTICS$3.5M
- REGENXBIO INC$1.7M
- LENZ THERAPEUTICS INC$945.4K
- AARDVARK THERAPEUTICS INC$609.1K
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | PLAINS GP HLDGS L P | PAGP | 72651A207 | $30.2M | 19.02% | 1,272,360 | SH |
| 2 | ACHIEVE LIFE SCIENCES INC | ACHV | 004468500 | $11.4M | 7.17% | 3,786,425 | SH |
| 3 | PHATHOM PHARMACEUTICALS INC | PHAT | 71722W107 | $9.4M | 5.90% | 841,272 | SH |
| 4 | DELCATH SYS INC | DCTH | 24661P807 | $9.2M | 5.77% | 979,698 | SH |
| 5 | CORCEPT THERAPEUTICS INC | CORT | 218352102 | $6.0M | 3.80% | 147,828 | SH |
| 6 | ABEONA THERAPEUTICS INC | ABEO | 00289Y206 | $6.0M | 3.79% | 1,329,899 | SH |
| 7 | VOR BIOPHARMA INC | VOR | 929033207 | $5.6M | 3.52% | 314,543 | SH |
| 8 | KYVERNA THERAPEUTICS INC | KYTX | 501976104 | $5.6M | 3.52% | 644,421 | SH |
| 9 | MILESTONE PHARMACEUTICALS IN | MIST | 59935V107 | $5.1M | 3.20% | 4,118,321 | SH |
| 10 | CELLDEX THERAPEUTICS INC NEW | CLDX | 15117B202 | $4.1M | 2.61% | 131,364 | SH |
| 11 | COMPASS PATHWAYS PLC | CMPS | 20451W101 | $4.1M | 2.60% | 742,049 | SH |
| 12 | VIRIDIAN THERAPEUTICS INC | VRDN | 92790C104 | $4.1M | 2.58% | 210,163 | SH |
| 13 | INVENTIVA SA | IVA | 46124U107 | $4.0M | 2.52% | 724,678 | SH |
| 14 | SAB BIOTHERAPEUTICS INC | SABS | 78397T202 | $3.9M | 2.45% | 1,012,790 | SH |
| 15 | ORCHESTRA BIOMED HLDGS INC | OBIO | 68572M106 | $3.8M | 2.41% | 896,701 | SH |
| 16 | 4D MOLECULAR THERAPEUTICS IN | FDMT | 35104E100 | $3.6M | 2.26% | 380,420 | SH |
| 17 | OCULIS HOLDING AG | OCS | H5870P102 | $3.3M | 2.07% | 122,223 | SH |
| 18 | OCULAR THERAPEUTIX INC | OCUL | 67576A100 | $3.2M | 2.03% | 382,375 | SH |
| 19 | UPSTREAM BIO INC | UPB | 91678A107 | $3.1M | 1.95% | 341,779 | SH |
| 20 | AQUESTIVE THERAPEUTICS INC | AQST | 03843E104 | $3.0M | 1.86% | 710,988 | SH |
| 21 | EYEPOINT INC | EYPT | 30233G209 | $2.8M | 1.76% | 215,825 | SH |
| 22 | TREVI THERAPEUTICS INC | TRVI | 89532M101 | $2.6M | 1.67% | 223,802 | SH |
| 23 | ZEVRA THERAPEUTICS INC | ZVRA | 488445206 | $2.6M | 1.66% | 282,418 | SH |
| 24 | IMMUNIC INC | IMUX | 4525EP101 | $2.6M | 1.65% | 2,344,779 | SH |
| 25 | COHERUS ONCOLOGY INC | CHRS | 19249H103 | $2.4M | 1.52% | 1,420,550 | SH |
| 26 | OVID THERAPEUTICS INC | OVID | 690469101 | $2.0M | 1.28% | 921,457 | SH |
| 27 | PALISADE BIO INC | PALI | 696389402 | $2.0M | 1.26% | 1,115,000 | SH |
| 28 | KALARIS THERAPEUTICS INC | KLRS | 482929106 | $1.7M | 1.08% | 295,771 | SH |
| 29 | UNIQURE NV | QURE | N90064101 | $1.7M | 1.08% | 104,772 | SH |
| 30 | LEONABIO INC | LONA | 04746L203 | $1.5M | 0.94% | 149,279 | SH |
| 31 | NUVATION BIO INC | NUVB | 67080N101 | $1.4M | 0.89% | 329,296 | SH |
| 32 | MAZE THERAPEUTICS INC | MAZE | 578784100 | $1.3M | 0.82% | 43,798 | SH |
| 33 | EVOMMUNE INC | EVMN | 30054Y107 | $1.3M | 0.81% | 55,664 | SH |
| 34 | CORVUS PHARMACEUTICALS INC | CRVS | 221015100 | $1.3M | 0.79% | 85,791 | SH |
| 35 | ALDEYRA THERAPEUTICS INC | ALDX | 01438T106 | $1.2M | 0.78% | 730,606 | SH |
| 36 | ARTIVA BIOTHERAPEUTICS INC | ARTV | 04317A107 | $949.8K | 0.60% | 146,369 | SH |
| 37 | CONNECT BIOPHARMA HLDGS LTD | CNTB | G23549101 | $553.9K | 0.35% | 209,493 | SH |
| 38 | SATELLOS BIOSCIENCE INC | MSLE | 80401L803 | $57.1K | 0.04% | 10,145 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-14 | $158.7M | 38 | 0000898432-26-000369 |
| 2025-12-31 | 2026-02-11 | $117.1M | 20 | 0000898432-26-000087 |
| 2025-09-30 | 2025-11-12 | $99.9M | 16 | 0000898432-25-000886 |