Millennium Management
SIBN icon

Millennium Management’s SI-BONE Inc SIBN Stock Holding History

Millennium Management’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
Q1 		$4.66M Buy
369,303
+261,876
+244% +$4.1M ﹤0.01% 3024
2025
Q4 		$2.12M Sell
107,427
-99,184
-48% -$1.72M ﹤0.01% 3886
2025
Q3 		$3.04M Sell
206,611
-131,157
-39% -$2.14M ﹤0.01% 3650
2025
Q2 		$6.36M Buy
337,768
+108,215
+47% +$1.79M ﹤0.01% 2740
2025
Q1 		$3.22M Buy
+229,553
New +$3.7M ﹤0.01% 3317
2024
Q3 		– Sell
-239,949
Closed -$3.1M – 6439
2024
Q2 		$3.1M Buy
239,949
+5,933
+3% +$84.7K ﹤0.01% 3154
2024
Q1 		$3.83M Sell
234,016
-976,308
-81% -$18.4M ﹤0.01% 3144
2023
Q4 		$25.4M Sell
1,210,324
-777,260
-39% -$14.4M 0.01% 1351
2023
Q3 		$42.2M Sell
1,987,584
-69,497
-3% -$1.61M 0.02% 824
2023
Q2 		$55.5M Buy
2,057,081
+397,894
+24% +$9.7M 0.03% 666
2023
Q1 		$32.6M Buy
1,659,187
+113,635
+7% +$2.02M 0.02% 966
2022
Q4 		$21M Buy
1,545,552
+641,296
+71% +$9.35M 0.01% 1401
2022
Q3 		$15.8M Buy
+904,256
New +$14.5M 0.01% 1592
2022
Q1 		– Sell
-786,463
Closed -$16.3M – 7430
2021
Q4 		$17.5M Sell
786,463
-993,841
-56% -$21.4M 0.01% 1563
2021
Q3 		$38.1M Buy
1,780,304
+1,357,502
+321% +$34.3M 0.02% 800
2021
Q2 		$13.3M Sell
422,802
-138,763
-25% -$4.49M 0.01% 1573
2021
Q1 		$17.9M Sell
561,565
-310,629
-36% -$9.56M 0.01% 1195
2020
Q4 		$26.1M Sell
872,194
-287,574
-25% -$7M 0.02% 875
2020
Q3 		$27.5K Sell
1,159,768
-29,716
-2% -$590K 0.03% 613
2020
Q2 		$19M Buy
1,189,484
+434,570
+58% +$6.85M 0.03% 766
2020
Q1 		$9.02M Buy
754,914
+67,791
+10% +$1.25M 0.02% 926
2019
Q4 		$14.8M Buy
687,123
+530,917
+340% +$9.53M 0.02% 1057
2019
Q3 		$2.76M Sell
156,206
-90,169
-37% -$1.73M ﹤0.01% 2225
2019
Q2 		$5.01M Buy
246,375
+85,593
+53% +$1.47M 0.01% 1783
2019
Q1 		$3.03M Sell
160,782
-154
-0.1% -$2.98K ﹤0.01% 2118
2018
Q4 		$3.36M Buy
+160,936
New +$3.04M 0.01% 1862

Other funds holding SIBN

FLAM
First Light Asset Management Edina, Minnesota $1.12B AUM 114.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Brown Advisory
Brown Advisory Baltimore, Maryland $60.9B AUM 15.24% 1-Year Est. Return
CCM
Cadian Capital Management New York $821M AUM 14.36% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
GIM
Granahan Investment Management Waltham, Massachusetts $2.07B AUM 56.45% 1-Year Est. Return
Impax Asset Management Group
Impax Asset Management Group London, United Kingdom $14.3B AUM 19.8% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return
SAM
Silvercrest Asset Management New York $13.8B AUM 28.39% 1-Year Est. Return

Millennium Management's SIBN Position: Q1 2026 in Review

Millennium Management increased its SI-BONE Inc (SIBN) stake by 244% in Q1 2026, buying an estimated $4.1M and bringing the position to 369,303 shares worth $4.66M. The position accounts for ﹤0.01% of the portfolio, ranked #3024.

Millennium Management first reported a position in SIBN in Q4 2018 and has held it in 26 quarters since. The position peaked at $55.5M in Q2 2023. 180 funds tracked by Wall St. Rank hold SIBN as of Q1 2026.

  • Millennium Management held 369,303 shares of SI-BONE Inc worth $4.66M as of Q1 2026.
  • Millennium Management bought 261,876 SI-BONE Inc shares in Q1 2026, an estimated $4.1M.
  • SI-BONE Inc made up ﹤0.01% of Millennium Management's portfolio in Q1 2026, its #3024 holding.
  • Millennium Management first reported a position in SI-BONE Inc in Q4 2018 and has held it in 26 quarters since.
  • Millennium Management's SI-BONE Inc position peaked at $55.5M in Q2 2023.
  • 180 funds tracked by Wall St. Rank held SI-BONE Inc as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.