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John Overdeck’s Blackrock BLK Stock Holding History

John Overdeck’s Portfolio BLK Stock Details BLK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.15M Buy
+1,200
New +$1.24M ﹤0.01% 3496
2022
Q1 		– Sell
-6,000
Closed -$5.49M – 2805
2021
Q4 		$5.49M Buy
6,000
+4,200
+233% +$3.83M 0.01% 1145
2021
Q3 		$1.51M Buy
1,800
+400
+29% +$358K ﹤0.01% 2235
2021
Q2 		$1.23M Sell
1,400
-2,600
-65% -$2.2M ﹤0.01% 2302
2021
Q1 		$3.02M Buy
+4,000
New +$2.9M 0.01% 1389
2020
Q1 		– Sell
-12,600
Closed -$6.33M – 3128
2019
Q4 		$6.33M Sell
12,600
-400
-3% -$190K 0.02% 821
2019
Q3 		$5.79M Buy
13,000
+4,100
+46% +$1.83M 0.02% 788
2019
Q2 		$4.18M Sell
8,900
-6,100
-41% -$2.76M 0.01% 976
2019
Q1 		$6.41M Buy
15,000
+1,400
+10% +$587K 0.02% 848
2018
Q4 		$5.34M Sell
13,600
-7,600
-36% -$3.11M 0.02% 767
2018
Q3 		$9.99M Buy
21,200
+4,000
+23% +$1.94M 0.03% 643
2018
Q2 		$8.58M Buy
17,200
+3,500
+26% +$1.85M 0.03% 730
2018
Q1 		$7.42M Buy
13,700
+1,500
+12% +$823K 0.02% 735
2017
Q4 		$6.27M Buy
12,200
+8,200
+205% +$3.99M 0.02% 801
2017
Q3 		$1.79M Sell
4,000
-7,000
-64% -$2.99M 0.01% 1366
2017
Q2 		$4.65M Sell
11,000
-8,400
-43% -$3.35M 0.02% 897
2017
Q1 		$7.44M Buy
19,400
+11,300
+140% +$4.32M 0.03% 740
2016
Q4 		$3.08M Sell
8,100
-11,900
-60% -$4.36M 0.01% 1167
2016
Q3 		$7.25M Buy
20,000
+17,000
+567% +$6.19M 0.03% 697
2016
Q2 		$1.03M Sell
3,000
-11,000
-79% -$3.87M ﹤0.01% 1717
2016
Q1 		$4.77M Buy
14,000
+13,000
+1,300% +$4.12M 0.02% 734
2015
Q4 		$341K Buy
+1,000
New +$340K ﹤0.01% 2176

Other funds holding BLK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Temasek Holdings
Temasek Holdings Singapore $37.3B AUM 12.6% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

John Overdeck's BLK Position: Q2 2026 in Review

John Overdeck increased its Blackrock (BLK) stake by 151% in Q2 2026, buying an estimated $302M and bringing the position to 485,320 shares worth $467M. The position accounts for 0.34% of the portfolio, ranked #53.

John Overdeck first reported a position in BLK in Q2 2015 and has held it in 36 quarters since. 2,319 funds tracked by Wall St. Rank hold BLK as of Q2 2026.

  • John Overdeck held 485,320 shares of Blackrock worth $467M as of Q2 2026.
  • John Overdeck bought 292,299 Blackrock shares in Q2 2026, an estimated $302M.
  • Blackrock made up 0.34% of John Overdeck's portfolio in Q2 2026, its #53 holding.
  • John Overdeck first reported a position in Blackrock in Q2 2015 and has held it in 36 quarters since.
  • 2,319 funds tracked by Wall St. Rank held Blackrock as of Q2 2026.

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