Avidity Partners Management LP
13F filer · CIK 1791827 · Dallas, TX
Summary
Avidity Partners Management LP reported $624.44M across 45 positions in its 13F for 2026 Q2, filed Aug 14, 2026. The largest holdings are DNTH (32.8%), CGON (15.9%), ORKA (11.6%). Versus 2026 Q1, leaving options aside, it opened 9 new positions, added to 4, trimmed 27 and sold out of 16.
Reported value$624.44M
Positions45
Report period2026 Q2
FiledAug 14, 2026
New positions9
Added4
Trimmed27
Sold out16
Top 25 holdings
By reported value, options listed separately · change vs 2026 Q1
Weight 32.8%Value $205.12MPrice $87.16Shares 2.10M -50.00%Since Jun 30 -10.59%
Weight 15.9%Value $99.40MPrice $70.52Shares 1.40M +8.53%Since Jun 30 -0.75%
Weight 11.6%Value $72.37MPrice $82.15Shares 760K -50.00%Since Jun 30 -13.68%
Weight 6.1%Value $37.79MPrice $14.18Shares 1.70M -39.29%Since Jun 30 -36.18%
Weight 4.5%Value $27.91MPrice $46.51Shares 550K -31.25%Since Jun 30 -8.35%
Weight 3.4%Value $21.48MPrice $2.62Shares 6.30M -47.93%Since Jun 30 -23.17%
Weight 2.5%Value $15.61MPrice $19.69Shares 484K -48.33%Since Jun 30 -38.91%
Weight 1.7%Value $10.70MPrice $139.00Shares 70K -50.00%Since Jun 30 -9.04%
Weight 1.7%Value $10.70MPrice $9.02Shares 798KSince Jun 30 -32.69%
Weight 1.7%Value $10.62MPrice $194.57Shares 78K -50.00%Since Jun 30 +42.60%
Weight 1.6%Value $10.30MPrice $8.91Shares 670KSince Jun 30 -42.03%
Weight 1.5%Value $9.09MPrice $10.05Shares 1.60MSince Jun 30 +76.94%
Weight 1.4%Value $9.03MPrice $1.21Shares 924K -0.32%Since Jun 30 -87.67%
Weight 1.1%Value $6.78MPrice $39.81Shares 200K -69.24%Since Jun 30 +17.50%
Weight 1.1%Value $6.74MPrice $86.64Shares 100K -47.37%Since Jun 30 +28.64%
Weight 1.0%Value $6.08MPrice $82.58Shares 105K +16.67%Since Jun 30 +42.55%
Weight 0.9%Value $5.48MPrice $87.09Shares 70K -65.00%Since Jun 30 +11.33%
Weight 0.8%Value $5.29MPrice $10.65Shares 519K -66.91%Since Jun 30 +4.51%
Weight 0.8%Value $5.26MPrice $32.69Shares 98K +25.64%Since Jun 30 -39.09%
Weight 0.7%Value $4.25MPrice $123.56Shares 42K -50.00%Since Jun 30 +22.24%
Weight 0.6%Value $3.87MPrice $1.84Shares 266K -44.81%Since Jun 30 -87.35%
Weight 0.6%Value $3.68MPrice $20.53Shares 200KSince Jun 30 +11.64%
Weight 0.6%Value $3.65MPrice $132.84Shares 24K +140.00%Since Jun 30 -12.75%
Weight 0.5%Value $3.41MPrice $43.88Shares 80K -33.33%Since Jun 30 +2.81%
Weight 0.5%Value $3.01MPrice $8.60Shares 388K -50.00%Since Jun 30 +10.61%
| Stock | Weight | Value | Since Jun 30 | Shares change | Action |
|---|---|---|---|---|---|
| 32.8% | $205.12M | -10.59% | -50.00% | Trim | |
| 15.9% | $99.40M | -0.75% | +8.53% | Add | |
| 11.6% | $72.37M | -13.68% | -50.00% | Trim | |
| 6.1% | $37.79M | -36.18% | -39.29% | Trim | |
| 4.5% | $27.91M | -8.35% | -31.25% | Trim | |
| 3.4% | $21.48M | -23.17% | -47.93% | Trim | |
| 2.5% | $15.61M | -38.91% | -48.33% | Trim | |
| 1.7% | $10.70M | -9.04% | -50.00% | Trim | |
| 1.7% | $10.70M | -32.69% | — | New | |
| 1.7% | $10.62M | +42.60% | -50.00% | Trim | |
| 1.6% | $10.30M | -42.03% | — | New | |
| 1.5% | $9.09M | +76.94% | — | New | |
| 1.4% | $9.03M | -87.67% | -0.32% | Trim | |
| 1.1% | $6.78M | +17.50% | -69.24% | Trim | |
| 1.1% | $6.74M | +28.64% | -47.37% | Trim | |
| 1.0% | $6.08M | +42.55% | +16.67% | Add | |
| 0.9% | $5.48M | +11.33% | -65.00% | Trim | |
| 0.8% | $5.29M | +4.51% | -66.91% | Trim | |
| 0.8% | $5.26M | -39.09% | +25.64% | Add | |
| 0.7% | $4.25M | +22.24% | -50.00% | Trim | |
| 0.6% | $3.87M | -87.35% | -44.81% | Trim | |
| 0.6% | $3.68M | +11.64% | — | New | |
| 0.6% | $3.65M | -12.75% | +140.00% | Add | |
| 0.5% | $3.41M | +2.81% | -33.33% | Trim | |
| 0.5% | $3.01M | +10.61% | -50.00% | Trim |
Weight is the share of the reported 13F value, including options at notional value. “Since Jun 30” compares the latest close with the quarter-end price implied by the filing (value ÷ shares).
Largest buys in 2026 Q2
Largest sells in 2026 Q2
Source: SEC Form 13F, values as reported by the filer. Filings lag up to 45 days after quarter end and cover only certain long positions. Research only, not investment advice.