John Overdeck’s BlackBerry BB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2022
Q1
Sell
-18,800
Closed -$176K 2755
2021
Q4
$176K Sell
18,800
-335,300
-95% -$3.36M ﹤0.01% 3958
2021
Q3
$3.44M Buy
+354,100
New +$3.71M 0.01% 1504
2021
Q2
Sell
-61,500
Closed -$518K 4045
2021
Q1
$518K Buy
+61,500
New +$690K ﹤0.01% 2897
2018
Q4
Sell
-50,400
Closed -$574K 2982
2018
Q3
$574K Sell
50,400
-32,200
-39% -$329K ﹤0.01% 2358
2018
Q2
$797K Buy
+82,600
New +$921K ﹤0.01% 2317
2018
Q1
Sell
-16,800
Closed -$188K 3136
2017
Q4
$188K Buy
+16,800
New +$183K ﹤0.01% 2941
2017
Q3
Sell
-35,100
Closed -$351K 2740
2017
Q2
$351K Buy
35,100
+22,800
+185% +$224K ﹤0.01% 2553
2017
Q1
$95K Sell
12,300
-28,500
-70% -$203K ﹤0.01% 2799
2016
Q4
$281K Buy
40,800
+20,600
+102% +$153K ﹤0.01% 2777
2016
Q3
$161K Buy
20,200
+7,900
+64% +$59.3K ﹤0.01% 2989
2016
Q2
$83K Buy
+12,300
New +$85.9K ﹤0.01% 2837
2016
Q1
Sell
-13,500
Closed -$125K 2786
2015
Q4
$125K Buy
+13,500
New +$104K ﹤0.01% 2547

Other funds holding BB

John Overdeck's BB Position: Q2 2026 in Review

John Overdeck increased its BlackBerry (BB) stake by 2,977% in Q2 2026, buying an estimated $72.5M and bringing the position to 10,733,152 shares worth $136M. The position accounts for 0.1% of the portfolio, ranked #227.

John Overdeck first reported a position in BB in Q4 2013 and has held it in 41 quarters since. 286 funds tracked by Wall St. Rank hold BB as of Q2 2026.

  • John Overdeck held 10,733,152 shares of BlackBerry worth $136M as of Q2 2026.
  • John Overdeck bought 10,384,331 BlackBerry shares in Q2 2026, an estimated $72.5M.
  • BlackBerry made up 0.1% of John Overdeck's portfolio in Q2 2026, its #227 holding.
  • John Overdeck first reported a position in BlackBerry in Q4 2013 and has held it in 41 quarters since.
  • 286 funds tracked by Wall St. Rank held BlackBerry as of Q2 2026.

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