Wellington Management Group
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Wellington Management Group’s Sutro Biopharma STRO Stock Holding History

Wellington Management Group’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 		$359K Buy
+10,800
New +$337K ﹤0.01% 1858
2018
Q4 		– Sell
-4,765
Closed -$715K – 2189
2018
Q3 		$715K Buy
+4,765
New +$720K ﹤0.01% 1952

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

Wellington Management Group's STRO Position: Q2 2026 in Review

Wellington Management Group opened a new position in Sutro Biopharma (STRO) in Q2 2026: 10,800 shares worth $359K. The stake represents ﹤0.01% of the portfolio and ranks #1858 among its holdings. This is a return to the name: Wellington Management Group previously reported a position in STRO as recently as Q3 2018.

Wellington Management Group first reported a position in STRO in Q3 2018 and has held it in 2 quarters since. The position peaked at $715K in Q3 2018. 100 funds tracked by Wall St. Rank hold STRO as of Q2 2026.

  • Wellington Management Group held 10,800 shares of Sutro Biopharma worth $359K as of Q2 2026.
  • Sutro Biopharma was a new Wellington Management Group position in Q2 2026.
  • Sutro Biopharma made up ﹤0.01% of Wellington Management Group's portfolio in Q2 2026, its #1858 holding.
  • Wellington Management Group first reported a position in Sutro Biopharma in Q3 2018 and has held it in 2 quarters since.
  • Wellington Management Group's Sutro Biopharma position peaked at $715K in Q3 2018.
  • 100 funds tracked by Wall St. Rank held Sutro Biopharma as of Q2 2026.

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