Dmitry Balyasny’s Masimo MASI Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | – | Sell |
-770,986
| Closed | -$137M | – | 3316 |
|
|
2026
Q1 | $137M | Buy |
+770,986
| New | +$121M | 0.18% | 114 |
|
|
2024
Q3 | – | Sell |
-135,719
| Closed | -$17.1M | – | 2991 |
|
|
2024
Q2 | $17.1M | Sell |
135,719
-119,789
| -47% | -$15.8M | 0.03% | 667 |
|
|
2024
Q1 | $37.5M | Sell |
255,508
-47,027
| -16% | -$6.07M | 0.07% | 409 |
|
|
2023
Q4 | $35.5M | Buy |
302,535
+52,107
| +21% | +$4.86M | 0.07% | 375 |
|
|
2023
Q3 | $22M | Buy |
250,428
+193,634
| +341% | +$22.5M | 0.04% | 545 |
|
|
2023
Q2 | $9.35M | Buy |
56,794
+8,162
| +17% | +$1.42M | 0.02% | 817 |
|
|
2023
Q1 | $8.97M | Sell |
48,632
-65,704
| -57% | -$11.1M | 0.02% | 820 |
|
|
2022
Q4 | $16.9M | Buy |
114,336
+97,831
| +593% | +$13.5M | 0.05% | 548 |
|
|
2022
Q3 | $2.33M | Buy |
+16,505
| New | +$2.41M | 0.01% | 1418 |
|
|
2022
Q2 | – | Sell |
-57,914
| Closed | -$8.43M | – | 2992 |
|
|
2022
Q1 | $8.43M | Buy |
+57,914
| New | +$11.1M | 0.03% | 752 |
|
|
2021
Q1 | – | Sell |
-11,196
| Closed | -$3M | – | 1953 |
|
|
2020
Q4 | $3M | Sell |
11,196
-24,656
| -69% | -$6.15M | 0.02% | 780 |
|
|
2020
Q3 | $8.46M | Buy |
+35,852
| New | +$8.04M | 0.06% | 443 |
|
|
2020
Q2 | – | Sell |
-44,068
| Closed | -$7.8M | – | 1349 |
|
|
2020
Q1 | $7.8M | Buy |
44,068
+889
| +2% | +$152K | 0.09% | 296 |
|
|
2019
Q4 | $6.83M | Buy |
43,179
+14,029
| +48% | +$2.11M | 0.04% | 522 |
|
|
2019
Q3 | $4.34M | Buy |
+29,150
| New | +$4.43M | 0.03% | 571 |
|
|
2019
Q1 | – | Sell |
-18,062
| Closed | -$1.94M | – | 1534 |
|
|
2018
Q4 | $1.94M | Sell |
18,062
-25,563
| -59% | -$2.85M | 0.01% | 724 |
|
|
2018
Q3 | $5.43M | Buy |
43,625
+24,942
| +134% | +$2.77M | 0.02% | 675 |
|
|
2018
Q2 | $1.82M | Sell |
18,683
-260,849
| -93% | -$24.8M | 0.01% | 962 |
|
|
2018
Q1 | $24.6M | Buy |
279,532
+272,770
| +4,034% | +$23.8M | 0.1% | 276 |
|
|
2017
Q4 | $573K | Buy |
+6,762
| New | +$587K | ﹤0.01% | 1512 |
|
|
2017
Q2 | – | Sell |
-5,635
| Closed | -$526K | – | 1627 |
|
|
2017
Q1 | $526K | Sell |
5,635
-1,400
| -20% | -$115K | ﹤0.01% | 1288 |
|
|
2016
Q4 | $474K | Sell |
7,035
-703
| -9% | -$43.2K | ﹤0.01% | 1155 |
|
|
2016
Q3 | $460K | Sell |
7,738
-2,724
| -26% | -$154K | ﹤0.01% | 756 |
|
|
2016
Q2 | $549K | Buy |
10,462
+1,364
| +15% | +$64.2K | ﹤0.01% | 811 |
|
|
2016
Q1 | $381K | Buy |
9,098
+3,390
| +59% | +$128K | ﹤0.01% | 950 |
|
|
2015
Q4 | $237K | Buy |
+5,708
| New | +$233K | ﹤0.01% | 1049 |
|
|
2013
Q3 | – | Sell |
-124,781
| Closed | -$2.65M | – | 655 |
|
|
2013
Q2 | $2.65M | Buy |
+124,781
| New | +$2.63M | 0.04% | 413 |
|
Other funds holding MASI
Dmitry Balyasny's MASI Position: Q2 2026 in Review
Dmitry Balyasny sold out of Masimo (MASI) in Q2 2026, closing a stake of 770,986 shares — an estimated $137M sold.
Dmitry Balyasny first reported a position in MASI in Q2 2013 and held it in 27 quarters. The position peaked at $137M in Q1 2026. 2 funds tracked by Wall St. Rank hold MASI as of Q2 2026.
- Dmitry Balyasny reported no remaining Masimo position as of Q2 2026 after selling out during the quarter.
- Dmitry Balyasny sold 770,986 Masimo shares in Q2 2026, an estimated $137M.
- Dmitry Balyasny first reported a position in Masimo in Q2 2013 and held it in 27 quarters.
- Dmitry Balyasny's Masimo position peaked at $137M in Q1 2026.
- 2 funds tracked by Wall St. Rank held Masimo as of Q2 2026.
Based on Balyasny Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.