Marshall Wace
SIBN icon

Marshall Wace’s SI-BONE Inc SIBN Stock Holding History

Marshall Wace’s Portfolio SIBN Stock Details SIBN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$11.3M Buy
690,288
+522,160
+311% +$7.46M 0.01% 987
2026
Q1 		$2.12M Sell
168,128
-167,749
-50% -$2.62M ﹤0.01% 1748
2025
Q4 		$6.62M Buy
335,877
+143,597
+75% +$2.49M 0.01% 1028
2025
Q3 		$2.83M Sell
192,280
-243,933
-56% -$3.98M ﹤0.01% 1445
2025
Q2 		$8.21M Buy
436,213
+67,202
+18% +$1.11M 0.01% 930
2025
Q1 		$5.18M Buy
369,011
+104,488
+40% +$1.69M 0.01% 1049
2024
Q4 		$3.71M Buy
264,523
+203,361
+332% +$2.74M ﹤0.01% 1189
2024
Q3 		$855K Sell
61,162
-147,524
-71% -$2.22M ﹤0.01% 1711
2024
Q2 		$2.7M Buy
208,686
+69,425
+50% +$992K ﹤0.01% 1230
2024
Q1 		$2.28M Sell
139,261
-181,245
-57% -$3.41M ﹤0.01% 1300
2023
Q4 		$6.73M Sell
320,506
-130,033
-29% -$2.41M 0.01% 807
2023
Q3 		$9.57M Sell
450,539
-114,850
-20% -$2.66M 0.02% 658
2023
Q2 		$15.3M Buy
+565,389
New +$13.8M 0.03% 582
2021
Q2 		– Sell
-7,119
Closed -$226K – 3041
2021
Q1 		$226K Sell
7,119
-30,753
-81% -$946K ﹤0.01% 2221
2020
Q4 		$1.13M Buy
+37,872
New +$922K 0.01% 1159

Other funds holding SIBN

FLAM
First Light Asset Management Edina, Minnesota $1.65B AUM 203.21% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
CCM
Cadian Capital Management New York $1.32B AUM 4.19% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Brown Advisory
Brown Advisory Baltimore, Maryland $64.6B AUM 18.98% 1-Year Est. Return
GIM
Granahan Investment Management Waltham, Massachusetts $2.81B AUM 83.9% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Impax Asset Management Group
Impax Asset Management Group London, United Kingdom $15.4B AUM 26.43% 1-Year Est. Return
GGHC
Gilder Gagnon Howe & Co New York $9.69B AUM 55.7% 1-Year Est. Return
PCMI
Paradigm Capital Management Inc Albany, New York $3.67B AUM 121.12% 1-Year Est. Return

Marshall Wace's SIBN Position: Q2 2026 in Review

Marshall Wace increased its SI-BONE Inc (SIBN) stake by 311% in Q2 2026, buying an estimated $7.46M and bringing the position to 690,288 shares worth $11.3M. The position accounts for 0.01% of the portfolio, ranked #987.

Marshall Wace first reported a position in SIBN in Q4 2020 and has held it in 15 quarters since. The position peaked at $15.3M in Q2 2023. 168 funds tracked by Wall St. Rank hold SIBN as of Q2 2026.

  • Marshall Wace held 690,288 shares of SI-BONE Inc worth $11.3M as of Q2 2026.
  • Marshall Wace bought 522,160 SI-BONE Inc shares in Q2 2026, an estimated $7.46M.
  • SI-BONE Inc made up 0.01% of Marshall Wace's portfolio in Q2 2026, its #987 holding.
  • Marshall Wace first reported a position in SI-BONE Inc in Q4 2020 and has held it in 15 quarters since.
  • Marshall Wace's SI-BONE Inc position peaked at $15.3M in Q2 2023.
  • 168 funds tracked by Wall St. Rank held SI-BONE Inc as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.