Partner Fund Management, L.P.
CIK 1442756 · Holdings on Jun 30, 2026 · First reported Aug 14, 2026
Top ten holdings
Q2 2026- ASND5.40%
- AXSM4.67%
- LLY4.09%
- JAZZ3.36%
- HUM3.25%
- UNH3.19%
- NBIX3.12%
- INBX2.54%
- UTHR2.35%
- RVMD2.33%
Share classes counted separately34.30%
Portfolio value by quarter
What changed this quarter?
Within preview · weight change- THCWeight decreased · -5.86 pp7.92% → 2.06%Shares -272.00K (-68.24%)
- PENWeight decreased · -3.18 pp4.83% → 1.65%Shares -79.56K (-56.92%)
- LLYWeight decreased · -2.28 pp6.37% → 4.09%Shares -26.50K (-40.30%)
Weight = security value ÷ total reported holdings value. Changes are in percentage points; price moves also affect weights, so they are not trade sizes.
Top 10 holdings 28
USD · B = billion · M = million; expand a row for exact values| # | Security | Value | Weight | Quantity | Weight / quantity change | Activity | |
|---|---|---|---|---|---|---|---|
| 01 | ASNDASCENDIS PHARMA A/SORD SHS View history and evidence | $62.19M | 5.40% | 233.17K shares | Prior unavailable — | CUSIP change | ↗▾ |
| 02 | AXSMAXSOME THERAPEUTICS INC View history and evidence | $53.75M | 4.67% | 219.60K shares | 4.70% → 4.67%-0.03 pp -44.71K (-16.92%) | Reduced | ↗▾ |
| 03 | LLYELI LILLY & CO View history and evidence | $47.09M | 4.09% | 39.26K shares | 6.37% → 4.09%-2.28 pp -26.50K (-40.30%) | Reduced | ↗▾ |
| 04 | JAZZJAZZ PHARMACEUTICALS PLCSHS USD View history and evidence | $38.74M | 3.36% | 160.77K shares | 3.54% → 3.36%-0.18 pp -17.38K (-9.75%) | Reduced | ↗▾ |
| 05 | HUMHUMANA INC View history and evidence | $37.49M | 3.25% | 94.38K shares | Prior unavailable +94.38K | New | ↗▾ |
| 06 | UNHUNITEDHEALTH GROUP INC View history and evidence | $36.69M | 3.19% | 88.28K shares | 1.65% → 3.19%+1.54 pp +30.24K (+52.10%) | Added | ↗▾ |
| 07 | NBIXNEUROCRINE BIOSCIENCES INC View history and evidence | $35.97M | 3.12% | 213.41K shares | 2.99% → 3.12%+0.13 pp -2.27K (-1.05%) | Reduced | ↗▾ |
| 08 | INBXINHIBRX BIOSCIENCES INC View history and evidence | $29.22M | 2.54% | 308.38K shares | 2.16% → 2.54%+0.38 pp +2.95K (+0.97%) | Added | ↗▾ |
| 09 | UTHRUNITED THERAPEUTICS CORP View history and evidence | $27.09M | 2.35% | 49.99K shares | 2.48% → 2.35%-0.13 pp +10.19K (+25.59%) | Added | ↗▾ |
| 10 | RVMDREVOLUTION MEDICINES INC View history and evidence | $26.82M | 2.33% | 143.22K shares | 1.44% → 2.33%+0.89 pp +2.45K (+1.74%) | Added | ↗▾ |
Options overlay 2
$13.61M notionalPut and Call positions are separate. Notional is based on underlying securities, not option premium, market value or net exposure. Quantities are underlying shares.
| Security | Put / Call | Underlying shares | Notional | Quantity change | |
|---|---|---|---|---|---|
CORCENCORA INC View history and evidence | Call | 28.10K | $7.95M | +28.10K | ▾ |
CNCCENTENE CORP View history and evidence | Put | 88.20K | $5.66M | +88.20K | ▾ |
2 / 2 options · preview only
Exited positions 19
| Security | Type | Shares out | Value out | Previous filing | This filing |
|---|---|---|---|---|---|
| XBI SS SPDR S&P BIOTECH ETF | Put | -455,300 | -$58.16M | SEC filing ↗ | SEC filing ↗ |
| XLV SS HEALTH CARE SELECT SECTOR | Call | -238,900 | -$35.03M | SEC filing ↗ | SEC filing ↗ |
| UTHR UNITED THERAPEUTICS CORP | Put | -45,900 | -$27.22M | SEC filing ↗ | SEC filing ↗ |
3 / 19 preview exits. Up to 30 exit records are previewed. Exit means absent from the current filing; execution date, price and proceeds are unknown.
Every number has a source.
CIK 1442756 · Period 2026-06-30
Data loaded 2026-09-23 · First reported 2026-08-14
Amendments and versions
{
"amendments_merged": null,
"prior_versions": null,
"cover_table_value": 1165441614
}Research all 98 reported holdings.
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