MEDI — MEDIMMUNE INC COM STK
As of Q2 2026, 1 SEC-registered investment managers reported holding MEDI (MEDIMMUNE INC COM STK) in their latest 13F filings, with a combined reported value of $708.85K across 20.95K shares. That is +16.1% by share count (+2.91K shares) versus the previous quarter, while reported value moved +34.0%. Ownership is concentrated: the five largest holders account for 100.0% of reported value and the top ten for 100.0%.
Compared with the prior quarter, 1 added to existing stakes. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
Q2 2026 — 1 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Citadel Advisors history | 20.95K | $708.85K | 0.00% | Add |
Q1 2026 — 1 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Citadel Advisors history | 18.04K | $528.85K | 0.00% | Add |
Q4 2025 — 1 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Citadel Advisors history | 16.01K | $503.51K | 0.00% | Reduce |
Q3 2025 — 1 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Citadel Advisors history | 16.18K | $462.09K | 0.00% | New |
Q2 2025 — 1 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| UBS Group AG history | 438 | $11.66K | 0.00% | Add |
Q1 2025 — 2 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Citadel Advisors history | 19.84K | $503.39K | 0.00% | Add |
| UBS Group AG history | 173 | $4.39K | 0.00% | Add |
New Positions (Q2 2026)
No fund opened a new position this quarter.
Fully Exited (vs previous quarter)
No tracked fund fully exited this quarter.
Fund Position History — shares by quarter (top 2 funds)
| Fund | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 | Q1 2024 | Q1 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Citadel Advisors | 20.95K | 18.04K | 16.01K | 16.18K | — | 19.84K | 14.88K | 15.30K | — |
| UBS Group AG | — | — | — | — | 438 | 173 | 161 | 65 | 10 |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details