Balyasny Asset Management’s Thermo Fisher Scientific TMO Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$273M Buy
555,473
+546,969
+6,432% +$297M 0.35% 39
2025
Q4
$4.93M Buy
+8,504
New +$4.81M 0.01% 1403
2025
Q3
Sell
-244,113
Closed -$114M 3475
2025
Q2
$99M Buy
244,113
+211,079
+639% +$88.3M 0.15% 154
2025
Q1
$16.4M Buy
33,034
+22,676
+219% +$12.3M 0.03% 680
2024
Q4
$5.39M Sell
10,358
-15,605
-60% -$8.58M 0.01% 1247
2024
Q3
$16.1M Sell
25,963
-103,807
-80% -$61.4M 0.03% 732
2024
Q2
$71.8M Buy
129,770
+95,433
+278% +$54.7M 0.13% 198
2024
Q1
$20M Sell
34,337
-218,646
-86% -$123M 0.03% 615
2023
Q4
$134M Buy
252,983
+114,434
+83% +$55.4M 0.25% 70
2023
Q3
$70.1M Buy
138,549
+133,721
+2,770% +$71.3M 0.14% 188
2023
Q2
$2.52M Sell
4,828
-799
-14% -$431K 0.01% 1304
2023
Q1
$3.24M Sell
5,627
-36,367
-87% -$20.5M 0.01% 1245
2022
Q4
$23.1M Buy
41,994
+33,399
+389% +$17.7M 0.06% 430
2022
Q3
$4.36M Sell
8,595
-92,584
-92% -$51.8M 0.01% 1072
2022
Q2
$55M Buy
+101,179
New +$55.7M 0.18% 132
2022
Q1
Sell
-123,297
Closed -$70.8M 2849
2021
Q4
$82.3M Buy
123,297
+12,855
+12% +$8.03M 0.28% 58
2021
Q3
$63.1M Sell
110,442
-41,284
-27% -$22.7M 0.26% 72
2021
Q2
$76.5M Buy
151,726
+110,449
+268% +$52.1M 0.36% 45
2021
Q1
$18.8M Buy
+41,277
New +$19.7M 0.09% 296
2020
Q3
Sell
-83,732
Closed -$34.6M 1601
2020
Q2
$30.3M Buy
+83,732
New +$28.1M 0.26% 95
2019
Q3
Sell
-18,877
Closed -$5.54M 1588
2019
Q2
$5.54M Buy
18,877
+9,639
+104% +$2.65M 0.04% 576
2019
Q1
$2.53M Sell
9,238
-232
-2% -$57.7K 0.02% 759
2018
Q4
$2.12M Buy
9,470
+4,525
+92% +$1.06M 0.02% 706
2018
Q3
$1.21M Sell
4,945
-13,126
-73% -$3.02M 0.01% 1129
2018
Q2
$3.74M Sell
18,071
-60,370
-77% -$12.8M 0.02% 742
2018
Q1
$16.2M Buy
78,441
+77,241
+6,437% +$16.2M 0.07% 384
2017
Q4
$228K Sell
1,200
-168,114
-99% -$32.2M ﹤0.01% 1846
2017
Q3
$32M Buy
169,314
+101,028
+148% +$18.3M 0.13% 222
2017
Q2
$11.9M Buy
68,286
+58,105
+571% +$9.76M 0.05% 486
2017
Q1
$1.56M Sell
10,181
-152,193
-94% -$23.3M 0.01% 977
2016
Q4
$22.9M Buy
+162,374
New +$23.9M 0.12% 235
2016
Q2
Sell
-128,985
Closed -$19M 1451
2016
Q1
$18.3M Buy
128,985
+27,212
+27% +$3.65M 0.11% 265
2015
Q4
$14.4M Sell
101,773
-118,170
-54% -$15.8M 0.1% 270
2015
Q3
$26.9M Buy
219,943
+218,163
+12,256% +$28.4M 0.2% 135
2015
Q2
$231K Sell
1,780
-196,345
-99% -$25.6M ﹤0.01% 995
2015
Q1
$26.6M Buy
+198,125
New +$25.5M 0.22% 145
2013
Q3
Sell
-48,713
Closed -$4.12M 711
2013
Q2
$4.12M Buy
+48,713
New +$4.06M 0.07% 335

Other funds holding TMO

Balyasny Asset Management's TMO Position: Q1 2026 in Review

Balyasny Asset Management increased its Thermo Fisher Scientific (TMO) stake by 6,432% in Q1 2026, buying an estimated $297M and bringing the position to 555,473 shares worth $273M. The position accounts for 0.35% of the portfolio, ranked #39.

Balyasny Asset Management first reported a position in TMO in Q2 2013 and has held it in 37 quarters since. 2,587 funds tracked by Wall St. Rank hold TMO as of Q1 2026.

  • Balyasny Asset Management held 555,473 shares of Thermo Fisher Scientific worth $273M as of Q1 2026.
  • Balyasny Asset Management bought 546,969 Thermo Fisher Scientific shares in Q1 2026, an estimated $297M.
  • Thermo Fisher Scientific made up 0.35% of Balyasny Asset Management's portfolio in Q1 2026, its #39 holding.
  • Balyasny Asset Management first reported a position in Thermo Fisher Scientific in Q2 2013 and has held it in 37 quarters since.
  • 2,587 funds tracked by Wall St. Rank held Thermo Fisher Scientific as of Q1 2026.

Based on Balyasny Asset Management's 13F filing for Q1 2026, filed 15 May 2026.