Sio Capital Management, LLC — 13F Holdings & Portfolio
CIK 1482416 · latest 13F-HR filed 2026-05-14
Sio Capital Management, LLC manages $697.3M in 13F-reported U.S. long-equity assets across 76 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are MMS (7.07%), WAY (5.68%), ICLR (4.86%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 22 new positions, exited 14, added to 28, and trimmed 21.
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.
$697.3M
Long-equity book
76
Distinct positions
2026-03-31
Filed 2026-05-14
+22 / −14 / ↑28 / ↓21
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- CENCORA INC$26.3M +490.2%
- ANTERIS TECHNOLOGIES GLOBAL$20.5M +219.4%
- WAYSTAR HLDG CORP$19.5M +97.0%
- ANI PHARMACEUTICALS INC$13.5M +196.4%
- DIANTHUS THERAPEUTICS INC$11.5M +58.8%
Top Trims
- SANOFI SA-$35.5M -75.5%
- ZIMMER BIOMET HOLDINGS INC-$29.0M -83.7%
- CELCUITY INC-$25.5M -53.5%
- ORGANON & CO-$19.3M -78.9%
- BIOHAVEN LTD-$4.2M -29.9%
New Positions
- CORCEPT THERAPEUTICS INC$27.2M
- GSK PLC$21.3M
- ABBOTT LABORATORIES$19.2M
- EMBECTA CORP$16.3M
- SIONNA THERAPEUTICS INC$11.8M
Exited Positions
- THE CIGNA GROUP$47.4M
- KENVUE INC$25.3M
- BRIGHTSPRING HEALTH SVCS INC$11.5M
- CENTENE CORP DEL$11.3M
- CHARLES RIV LABS INTL INC$11.0M
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 | MAXIMUS INC | MMS | 577933104 | $49.3M | 7.07% | 768,825 | SH |
| 2 | WAYSTAR HLDG CORP | WAY | 946784105 | $39.6M | 5.68% | 1,642,236 | SH |
| 3 | ICON PLC | ICLR | G4705A100 | $33.9M | 4.86% | 306,358 | SH |
| 4 | CENCORA INC | COR | 03073E105 | $31.7M | 4.55% | 100,894 | SH |
| 5 | DIANTHUS THERAPEUTICS INC | DNTH | 252828108 | $31.1M | 4.45% | 370,045 | SH |
| 6 | ANTERIS TECHNOLOGIES GLOBAL | AVR | 03675P102 | $29.9M | 4.28% | 5,382,965 | SH |
| 7 | CORCEPT THERAPEUTICS INC | CORT | 218352102 | $27.2M | 3.90% | 674,759 | SH |
| 8 | LIVANOVA PLC | LIVN | G5509L101 | $26.8M | 3.84% | 421,615 | SH |
| 9 | TYRA BIOSCIENCES INC | TYRA | 90240B106 | $23.2M | 3.33% | 605,439 | SH |
| 10 | CELCUITY INC | CELC | 15102K100 | $22.1M | 3.17% | 193,843 | SH |
| 11 | GSK PLC | GSK | 37733W204 | $21.3M | 3.05% | 385,879 | SH |
| 12 | ANI PHARMACEUTICALS INC | ANIP | 00182C103 | $20.4M | 2.93% | 265,543 | SH |
| 13 | ABBOTT LABORATORIES | ABT | 002824100 | $19.2M | 2.75% | 186,574 | SH |
| 14 | EMBECTA CORP | EMBC | 29082K105 | $16.3M | 2.34% | 1,847,850 | SH |
| 15 | ABIVAX SA | ABVX | 00370M103 | $15.1M | 2.17% | 135,800 | SH |
| 16 | VIR BIOTECHNOLOGY INC | VIR | 92764N102 | $13.4M | 1.93% | 1,498,620 | SH |
| 17 | HAEMONETICS CORP MASS | HAE | 405024100 | $12.4M | 1.78% | 220,672 | SH |
| 18 | SIONNA THERAPEUTICS INC | SION | 829401108 | $11.8M | 1.69% | 294,340 | SH |
| 19 | SANOFI SA | SNY | 80105N105 | $11.5M | 1.66% | 239,671 | SH |
| 20 | RAPPORT THERAPEUTICS INC | RAPP | 75383L102 | $11.5M | 1.65% | 366,809 | SH |
| 21 | TELEFLEX INCORPORATED | TFX | 879369106 | $11.3M | 1.63% | 94,800 | SH |
| 22 | BIOMARIN PHARMACEUTICAL INC | BMRN | 09061G101 | $11.0M | 1.57% | 194,226 | SH |
| 23 | CROSS CTRY HEALTHCARE INC | CCRN | 227483104 | $10.3M | 1.48% | 1,098,393 | SH |
| 24 | PROTARA THERAPEUTICS INC | TARA | 74365U107 | $10.3M | 1.47% | 1,969,839 | SH |
| 25 | STRUCTURE THERAPEUTICS INC | GPCR | 86366E106 | $10.1M | 1.45% | 209,093 | SH |
| 26 | BIOHAVEN LTD | BHVN | G1110E107 | $9.8M | 1.41% | 1,163,926 | SH |
| 27 | MONOPAR THERAPEUTICS INC | MNPR | 61023L207 | $9.5M | 1.36% | 173,506 | SH |
| 28 | EYEPOINT INC | EYPT | 30233G209 | $9.3M | 1.33% | 721,785 | SH |
| 29 | CRINETICS PHARMACEUTICALS IN | CRNX | 22663K107 | $9.1M | 1.30% | 249,887 | SH |
| 30 | EDGEWISE THERAPEUTICS INC | EWTX | 28036F105 | $8.5M | 1.22% | 268,986 | SH |
| 31 | COMPASS PATHWAYS PLC | CMPS | 20451W101 | $8.3M | 1.19% | 1,506,525 | SH |
| 32 | OCULAR THERAPEUTIX INC | OCUL | 67576A100 | $8.2M | 1.18% | 968,597 | SH |
| 33 | AQUESTIVE THERAPEUTICS INC | AQST | 03843E104 | $8.0M | 1.14% | 1,922,887 | SH |
| 34 | RELMADA THERAPEUTICS INC | RLMD | 75955J402 | $6.7M | 0.96% | 965,000 | SH |
| 35 | ORUKA THERAPEUTICS INC | ORKA | 687604108 | $6.5M | 0.93% | 132,496 | SH |
| 36 | ZENAS BIOPHARMA INC | ZBIO | 98937L105 | $6.5M | 0.93% | 331,730 | SH |
| 37 | BRIGHT MINDS BIOSCIENCES INC | DRUG | 10919W405 | $6.3M | 0.90% | 86,083 | SH |
| 38 | QUIDELORTHO CORP | QDEL | 219798105 | $5.9M | 0.85% | 359,011 | SH |
| 39 | ZIMMER BIOMET HOLDINGS INC | ZBH | 98956P102 | $5.7M | 0.81% | 62,613 | SH |
| 40 | REPLIMUNE GROUP INC | REPL | 76029N106 | $5.5M | 0.79% | 720,036 | SH |
| 41 | ORGANON & CO | OGN | 68622V106 | $5.2M | 0.74% | 865,908 | SH |
| 42 | ONKURE THERAPEUTICS INC | OKUR | 68277Q105 | $4.5M | 0.64% | 1,078,965 | SH |
| 43 | DISC MEDICINE INC | IRON | 254604101 | $4.2M | 0.60% | 65,203 | SH |
| 44 | PMV PHARMACEUTICALS INC | PMVP | 69353Y103 | $3.8M | 0.55% | 3,076,580 | SH |
| 45 | IMMUNOME INC | IMNM | 45257U108 | $3.6M | 0.52% | 165,110 | SH |
| 46 | INTEGRA LIFESCIENCES HLDGS C | IART | 457985208 | $3.6M | 0.52% | 383,140 | SH |
| 47 | SAVARA INC | SVRA | 805111101 | $3.4M | 0.48% | 613,888 | SH |
| 48 | CENTENE CORP DEL Put | CNC | 15135B101 | $3.3M | 0.47% | 100,000 | SH |
| 49 | PROQR THERAPEUTICS N V | PRQR | N71542109 | $3.2M | 0.45% | 1,954,715 | SH |
| 50 | SHOULDER INNOVATIONS INC | SI | 82537J108 | $3.1M | 0.44% | 210,641 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-14 | $697.3M | 76 | 0001214659-26-006200 |
| 2025-12-31 | 2026-02-17 | $635.7M | 68 | 0001214659-26-001854 |
| 2025-09-30 | 2025-11-13 | $395.2M | 51 | 0001214659-25-016415 |