JY
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Jeff Yass’s Sutro Biopharma STRO Stock Holding History

Jeff Yass’s Portfolio STRO Stock Details STRO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$365K Sell
11,000
-25,600
-70% -$798K ﹤0.01% 10619
2026
Q1 		$912K Buy
+36,600
New +$661K ﹤0.01% 8118
2025
Q1 		– Sell
-1,700
Closed -$31.3K – 13420
2024
Q4 		$31.3K Sell
1,700
-330
-16% -$10.1K ﹤0.01% 11831
2024
Q3 		$70.2K Sell
2,030
-360
-15% -$14.1K ﹤0.01% 11238
2024
Q2 		$70K Buy
+2,390
New +$94.5K ﹤0.01% 11244
2021
Q3 		– Sell
-1,140
Closed -$212K – 13536
2021
Q2 		$212K Sell
1,140
-400
-26% -$78.3K ﹤0.01% 11483
2021
Q1 		$351K Sell
1,540
-1,640
-52% -$389K ﹤0.01% 10290
2020
Q4 		$690K Buy
+3,180
New +$526K ﹤0.01% 7577

Other funds holding STRO

PA
Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return
AAA
Affinity Asset Advisors New York $2.21B AUM 431.26% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
SB
Samsara BioCapital Palo Alto, California $1.22B AUM 242.83% 1-Year Est. Return
KCM
Kynam Capital Management Princeton, New Jersey $1.81B AUM 192.15% 1-Year Est. Return
O
OrbiMed New York $5.4B AUM 163.13% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
EAM
Eventide Asset Management Boston, Massachusetts $7.48B AUM 104.76% 1-Year Est. Return

Jeff Yass's STRO Position: Q2 2026 in Review

Jeff Yass reduced its Sutro Biopharma (STRO) stake by 90% in Q2 2026, selling an estimated $2.38M and leaving 8,426 shares worth $280K. The position accounts for ﹤0.01% of the portfolio, ranked #11210.

Jeff Yass first reported a position in STRO in Q1 2021 and has held it in 20 quarters since. The position peaked at $2.11M in Q1 2026. 99 funds tracked by Wall St. Rank hold STRO as of Q2 2026.

  • Jeff Yass held 8,426 shares of Sutro Biopharma worth $280K as of Q2 2026.
  • Jeff Yass sold 76,476 Sutro Biopharma shares in Q2 2026, an estimated $2.38M.
  • Sutro Biopharma made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #11210 holding.
  • Jeff Yass first reported a position in Sutro Biopharma in Q1 2021 and has held it in 20 quarters since.
  • Jeff Yass's Sutro Biopharma position peaked at $2.11M in Q1 2026.
  • 99 funds tracked by Wall St. Rank held Sutro Biopharma as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.