Northern Trust
IRON icon

Northern Trust’s Disc Medicine IRON Stock Holding History

Northern Trust’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
Q1 		$15.8M Buy
247,195
+19,125
+8% +$1.33M ﹤0.01% 1818
2025
Q4 		$18.1M Buy
228,070
+8,581
+4% +$725K ﹤0.01% 1733
2025
Q3 		$14.5M Buy
219,489
+394
+0.2% +$23.4K ﹤0.01% 1896
2025
Q2 		$11.6M Buy
219,095
+10,282
+5% +$483K ﹤0.01% 1981
2025
Q1 		$10.4M Buy
208,813
+21,796
+12% +$1.21M ﹤0.01% 2019
2024
Q4 		$11.9M Buy
187,017
+16,299
+10% +$943K ﹤0.01% 2022
2024
Q3 		$8.39M Buy
170,718
+72,343
+74% +$3.4M ﹤0.01% 2166
2024
Q2 		$4.43M Buy
98,375
+987
+1% +$33.5K ﹤0.01% 2469
2024
Q1 		$6.06M Buy
97,388
+2,129
+2% +$138K ﹤0.01% 2348
2023
Q4 		$5.5M Buy
95,259
+6,221
+7% +$319K ﹤0.01% 2448
2023
Q3 		$4.18M Buy
89,038
+19,063
+27% +$954K ﹤0.01% 2544
2023
Q2 		$3.11M Buy
+69,975
New +$2.48M ﹤0.01% 2763
2022
Q4 		– Sell
-1,622
Closed -$80K – 4679
2022
Q3 		$80K Hold
1,622
– – ﹤0.01% 4188
2022
Q2 		$82K Sell
1,622
-4,889
-75% -$216K ﹤0.01% 4246
2022
Q1 		$272K Sell
6,511
-189
-3% -$9.91K ﹤0.01% 3998
2021
Q4 		$585K Sell
6,700
-152
-2% -$14.9K ﹤0.01% 3753
2021
Q3 		$830K Sell
6,852
-572
-8% -$78.2K ﹤0.01% 3608
2021
Q2 		$1.44M Buy
7,424
+5,517
+289% +$1.81M ﹤0.01% 3447
2021
Q1 		$775K Buy
+1,907
New +$851K ﹤0.01% 3681

Other funds holding IRON

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
FLSM
Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return
TCM
TCG Crossover Management Palo Alto, California $3.5B AUM 1,165.83% 1-Year Est. Return

Northern Trust's IRON Position: Q1 2026 in Review

Northern Trust increased its Disc Medicine (IRON) stake by 8.4% in Q1 2026, buying an estimated $1.33M and bringing the position to 247,195 shares worth $15.8M. The position accounts for ﹤0.01% of the portfolio, ranked #1818.

Northern Trust first reported a position in IRON in Q1 2021 and has held it in 19 quarters since. The position peaked at $18.1M in Q4 2025. 203 funds tracked by Wall St. Rank hold IRON as of Q1 2026.

  • Northern Trust held 247,195 shares of Disc Medicine worth $15.8M as of Q1 2026.
  • Northern Trust bought 19,125 Disc Medicine shares in Q1 2026, an estimated $1.33M.
  • Disc Medicine made up ﹤0.01% of Northern Trust's portfolio in Q1 2026, its #1818 holding.
  • Northern Trust first reported a position in Disc Medicine in Q1 2021 and has held it in 19 quarters since.
  • Northern Trust's Disc Medicine position peaked at $18.1M in Q4 2025.
  • 203 funds tracked by Wall St. Rank held Disc Medicine as of Q1 2026.

Based on Northern Trust's 13F filing for Q1 2026, filed 14 May 2026.