SPHERA FUNDS MANAGEMENT LTD.
CIK 0001496201 · TEL AVIV, L3 · Quarter end: 2026-06-30 · Filed on: 2026-08-14 · Open the SEC source ↗
Portfolio Value (AUM)Total value of the fund's US stock portfolio reported to the SEC.
$766.5M
2026 Q2
Positions
105
Top-10 ConcentrationHow much of the portfolio sits in the 10 largest holdings. High = concentrated bets.
34.5%
Est. Net Flow (Q)
—
2026 Q2
Portfolio Composition
Sector Allocation
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Option Positions
PUT 3.1%CALL 2.8%
| Symbol | Company | Type | Notional Value | % Port. |
|---|---|---|---|---|
| XBI | SPDR SERIES TRUST | PUT | $23.7M | 3.10% |
| BIIB | BIOGEN INC | CALL | $21.6M | 2.82% |
13F reports options at notional share-equivalent value; premium cost and strikes are not disclosed.
Read the 2026-Q2 quarterly report · 13F Filing Calendar
13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.