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Cliff Asness’s Disc Medicine IRON Stock Holding History

Cliff Asness’s Portfolio IRON Stock Details IRON Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$722K Sell
9,868
-4,287
-30% -$295K ﹤0.01% 3192
2026
Q1 		$905K Buy
14,155
+148
+1% +$10.3K ﹤0.01% 2824
2025
Q4 		$1.11M Buy
14,007
+29
+0.2% +$2.45K ﹤0.01% 2487
2025
Q3 		$924K Buy
13,978
+329
+2% +$19.6K ﹤0.01% 2481
2025
Q2 		$723K Buy
+13,649
New +$641K ﹤0.01% 2401
2022
Q1 		– Sell
-422
Closed -$37K – 2250
2021
Q4 		$37K Hold
422
– – ﹤0.01% 2184
2021
Q3 		$51K Buy
+422
New +$57.7K ﹤0.01% 2225

Other funds holding IRON

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
VPC
Vestal Point Capital New York $4.28B AUM 239% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $881M AUM 160.77% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Cliff Asness's IRON Position: Q2 2026 in Review

Cliff Asness reduced its Disc Medicine (IRON) stake by 30% in Q2 2026, selling an estimated $295K and leaving 9,868 shares worth $722K. The position accounts for ﹤0.01% of the portfolio, ranked #3192.

Cliff Asness first reported a position in IRON in Q3 2021 and has held it in 7 quarters since. The position peaked at $1.11M in Q4 2025. 215 funds tracked by Wall St. Rank hold IRON as of Q2 2026.

  • Cliff Asness held 9,868 shares of Disc Medicine worth $722K as of Q2 2026.
  • Cliff Asness sold 4,287 Disc Medicine shares in Q2 2026, an estimated $295K.
  • Disc Medicine made up ﹤0.01% of Cliff Asness's portfolio in Q2 2026, its #3192 holding.
  • Cliff Asness first reported a position in Disc Medicine in Q3 2021 and has held it in 7 quarters since.
  • Cliff Asness's Disc Medicine position peaked at $1.11M in Q4 2025.
  • 215 funds tracked by Wall St. Rank held Disc Medicine as of Q2 2026.

Based on AQR Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.