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John Overdeck’s ADMA Biologics ADMA Stock Holding History

John Overdeck’s Portfolio ADMA Stock Details ADMA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$16.9M Sell
2,019,887
-72,246
-3% -$659K 0.01% 1165
2026
Q1 		$18.9M Buy
2,092,133
+1,587,959
+315% +$25.1M 0.02% 983
2025
Q4 		$9.2M Sell
504,174
-393,854
-44% -$6.64M 0.01% 1184
2025
Q3 		$13.2M Sell
898,028
-304,073
-25% -$5.21M 0.02% 816
2025
Q2 		$21.9M Sell
1,202,101
-1,053,205
-47% -$21.5M 0.04% 521
2025
Q1 		$44.7M Sell
2,255,306
-293,648
-12% -$5.08M 0.1% 262
2024
Q4 		$43.7M Sell
2,548,954
-1,042,421
-29% -$19.6M 0.1% 257
2024
Q3 		$71.8M Sell
3,591,375
-436,225
-11% -$6.78M 0.16% 156
2024
Q2 		$45M Buy
4,027,600
+181,642
+5% +$1.52M 0.1% 229
2024
Q1 		$25.4M Buy
3,845,958
+740,948
+24% +$4.05M 0.06% 370
2023
Q4 		$14M Sell
3,105,010
-82,734
-3% -$306K 0.03% 542
2023
Q3 		$11.4M Buy
3,187,744
+397,741
+14% +$1.53M 0.03% 560
2023
Q2 		$10.3M Buy
2,790,003
+468,644
+20% +$1.74M 0.03% 637
2023
Q1 		$7.68M Sell
2,321,359
-67,125
-3% -$232K 0.02% 704
2022
Q4 		$9.27M Buy
2,388,484
+1,062,502
+80% +$3.28M 0.03% 587
2022
Q3 		$3.22M Buy
1,325,982
+764,545
+136% +$1.83M 0.01% 947
2022
Q2 		$1.11M Buy
+561,437
New +$1.1M ﹤0.01% 1497
2020
Q1 		– Sell
-25,453
Closed -$102K – 3007
2019
Q4 		$102K Buy
+25,453
New +$111K ﹤0.01% 3519
2019
Q3 		– Sell
-54,334
Closed -$210K – 3398
2019
Q2 		$210K Buy
+54,334
New +$240K ﹤0.01% 3061

Other funds holding ADMA

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
CP
Caligan Partners New York $2.13B AUM 758.65% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

John Overdeck's ADMA Position: Q2 2026 in Review

John Overdeck reduced its ADMA Biologics (ADMA) stake by 3.5% in Q2 2026, selling an estimated $659K and leaving 2,019,887 shares worth $16.9M. The position accounts for 0.01% of the portfolio, ranked #1165.

John Overdeck first reported a position in ADMA in Q2 2019 and has held it in 19 quarters since. The position peaked at $71.8M in Q3 2024. 321 funds tracked by Wall St. Rank hold ADMA as of Q2 2026.

  • John Overdeck held 2,019,887 shares of ADMA Biologics worth $16.9M as of Q2 2026.
  • John Overdeck sold 72,246 ADMA Biologics shares in Q2 2026, an estimated $659K.
  • ADMA Biologics made up 0.01% of John Overdeck's portfolio in Q2 2026, its #1165 holding.
  • John Overdeck first reported a position in ADMA Biologics in Q2 2019 and has held it in 19 quarters since.
  • John Overdeck's ADMA Biologics position peaked at $71.8M in Q3 2024.
  • 321 funds tracked by Wall St. Rank held ADMA Biologics as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.