Julian Baker’s Yarrow Bioscience YARW Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q4
Sell
-17,027
Closed -$285K 98
2025
Q3
$285K Buy
+17,027
New +$557K ﹤0.01% 87
2020
Q2
Sell
-174
Closed -$1.68M 120
2020
Q1
$1.68M Sell
174
-20
-10% -$314K 0.01% 94
2019
Q4
$3.25M Hold
194
0.02% 81
2019
Q3
$3.14M Hold
194
0.02% 75
2019
Q2
$4.19M Hold
194
0.03% 66
2019
Q1
$5.5M Hold
194
0.04% 57
2018
Q4
$2.88M Hold
194
0.02% 65
2018
Q3
$6.89M Hold
194
0.05% 62
2018
Q2
$5.68M Hold
194
0.04% 70
2018
Q1
$26.3M Buy
+194
New +$23.6M 0.22% 36

Other funds holding YARW

Julian Baker's YARW Position: Q4 2025 in Review

Julian Baker sold out of Yarrow Bioscience (YARW) in Q4 2025, closing a stake of 17,027 shares — an estimated $285K sold.

Julian Baker first reported a position in YARW in Q1 2018 and held it in 10 quarters. The position peaked at $26.3M in Q1 2018. 41 funds tracked by Wall St. Rank hold YARW as of Q4 2025.

  • Julian Baker reported no remaining Yarrow Bioscience position as of Q4 2025 after selling out during the quarter.
  • Julian Baker sold 17,027 Yarrow Bioscience shares in Q4 2025, an estimated $285K.
  • Julian Baker first reported a position in Yarrow Bioscience in Q1 2018 and held it in 10 quarters.
  • Julian Baker's Yarrow Bioscience position peaked at $26.3M in Q1 2018.
  • 41 funds tracked by Wall St. Rank held Yarrow Bioscience as of Q4 2025.

Based on Baker Bros. Advisors's 13F filing for Q4 2025, filed 17 Feb 2026.