Jim Simons
SIBN icon

Jim Simons’s SI-BONE Inc SIBN Stock Holding History

Jim Simons’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 		$720K Sell
44,100
-428,519
-91% -$6.12M ﹤0.01% 2460
2026
Q1 		$5.97M Buy
472,619
+238,219
+102% +$3.73M 0.01% 1267
2025
Q4 		$4.62M Sell
234,400
-265,300
-53% -$4.61M 0.01% 1354
2025
Q3 		$7.36M Buy
499,700
+80,000
+19% +$1.31M 0.01% 1255
2025
Q2 		$7.9M Buy
419,700
+206,600
+97% +$3.43M 0.01% 1226
2025
Q1 		$2.99M Buy
213,100
+101,700
+91% +$1.64M ﹤0.01% 1742
2024
Q4 		$1.56M Buy
+111,400
New +$1.5M ﹤0.01% 2208
2024
Q3 		– Sell
-130,700
Closed -$1.69M – 3846
2024
Q2 		$1.69M Sell
130,700
-91,700
-41% -$1.31M ﹤0.01% 1975
2024
Q1 		$3.64M Buy
222,400
+89,700
+68% +$1.69M 0.01% 1620
2023
Q4 		$2.78M Sell
132,700
-35,000
-21% -$648K ﹤0.01% 1734
2023
Q3 		$3.56M Buy
167,700
+126,600
+308% +$2.93M 0.01% 1494
2023
Q2 		$1.11M Sell
41,100
-90,300
-69% -$2.2M ﹤0.01% 2410
2023
Q1 		$2.58M Buy
+131,400
New +$2.33M ﹤0.01% 1867
2021
Q3 		– Sell
-87,801
Closed -$2.76M – 3806
2021
Q2 		$2.76M Sell
87,801
-107,800
-55% -$3.49M ﹤0.01% 2028
2021
Q1 		$6.22M Sell
195,601
-53,700
-22% -$1.65M 0.01% 1519
2020
Q4 		$7.45M Buy
249,301
+32,501
+15% +$791K 0.01% 1347
2020
Q3 		$5.14M Buy
216,800
+7,100
+3% +$141K 0.01% 1559
2020
Q2 		$3.34M Sell
209,700
-14,800
-7% -$233K ﹤0.01% 1872
2020
Q1 		$2.68M Buy
224,500
+159,200
+244% +$2.92M ﹤0.01% 1901
2019
Q4 		$1.4M Buy
65,300
+24,400
+60% +$438K ﹤0.01% 2480
2019
Q3 		$723K Buy
+40,900
New +$783K ﹤0.01% 2721

Other funds holding SIBN

First Light Asset Management
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
Cadian Capital Management
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
Granahan Investment Management
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
Gilder Gagnon Howe & Co
Gilder Gagnon Howe & Co New York $9.7B AUM 55.7% 1-Year Est. Return
Paradigm Capital Management Inc
Paradigm Capital Management Inc Albany, New York $3.67B AUM 121.12% 1-Year Est. Return

Jim Simons's SIBN Position: Q2 2026 in Review

Jim Simons reduced its SI-BONE Inc (SIBN) stake by 91% in Q2 2026, selling an estimated $6.12M and leaving 44,100 shares worth $720K. The position accounts for ﹤0.01% of the portfolio, ranked #2460.

Jim Simons first reported a position in SIBN in Q3 2019 and has held it in 21 quarters since. The position peaked at $7.9M in Q2 2025. 167 funds tracked by Wall St. Rank hold SIBN as of Q2 2026.

  • Jim Simons held 44,100 shares of SI-BONE Inc worth $720K as of Q2 2026.
  • Jim Simons sold 428,519 SI-BONE Inc shares in Q2 2026, an estimated $6.12M.
  • SI-BONE Inc made up ﹤0.01% of Jim Simons's portfolio in Q2 2026, its #2460 holding.
  • Jim Simons first reported a position in SI-BONE Inc in Q3 2019 and has held it in 21 quarters since.
  • Jim Simons's SI-BONE Inc position peaked at $7.9M in Q2 2025.
  • 167 funds tracked by Wall St. Rank held SI-BONE Inc as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.