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Granahan Investment Management’s SI-BONE Inc SIBN Stock Holding History

Granahan Investment 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
Q2 		$31.5M Buy
1,931,182
+192,085
+11% +$2.74M 1.12% 28
2026
Q1 		$22M Buy
1,739,097
+858,942
+98% +$13.4M 1.06% 26
2025
Q4 		$17.4M Sell
880,155
-159,494
-15% -$2.77M 0.74% 40
2025
Q3 		$15.3M Sell
1,039,649
-224,678
-18% -$3.67M 0.63% 44
2025
Q2 		$23.8M Sell
1,264,327
-168,374
-12% -$2.79M 0.97% 31
2025
Q1 		$20.1M Sell
1,432,701
-201,865
-12% -$3.26M 1% 27
2024
Q4 		$22.9M Sell
1,634,566
-21,740
-1% -$292K 0.96% 34
2024
Q3 		$23.2M Sell
1,656,306
-106,795
-6% -$1.61M 0.91% 30
2024
Q2 		$22.8M Buy
1,763,101
+170,527
+11% +$2.44M 0.91% 30
2024
Q1 		$26.1M Buy
1,592,574
+306,124
+24% +$5.77M 0.92% 31
2023
Q4 		$27M Buy
1,286,450
+150,217
+13% +$2.78M 0.89% 30
2023
Q3 		$24.1M Buy
1,136,233
+192,517
+20% +$4.46M 0.86% 32
2023
Q2 		$25.5M Sell
943,716
-235,806
-20% -$5.75M 0.78% 38
2023
Q1 		$23.2M Buy
1,179,522
+17,038
+1% +$303K 0.71% 42
2022
Q4 		$15.8M Buy
1,162,484
+266,009
+30% +$3.88M 0.48% 62
2022
Q3 		$15.7M Buy
896,475
+216,057
+32% +$3.45M 0.51% 55
2022
Q2 		$8.98M Sell
680,418
-57,294
-8% -$954K 0.31% 87
2022
Q1 		$16.7M Sell
737,712
-1,230
-0.2% -$25.5K 0.41% 64
2021
Q4 		$16.4M Buy
738,942
+346,396
+88% +$7.46M 0.34% 82
2021
Q3 		$8.41M Buy
392,546
+34,441
+10% +$871K 0.16% 123
2021
Q2 		$11.3M Buy
358,105
+109,743
+44% +$3.55M 0.21% 107
2021
Q1 		$7.9M Buy
248,362
+29,035
+13% +$893K 0.17% 109
2020
Q4 		$6.56M Buy
+219,327
New +$5.34M 0.15% 115

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
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
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Granahan Investment Management's SIBN Position: Q2 2026 in Review

Granahan Investment Management increased its SI-BONE Inc (SIBN) stake by 11% in Q2 2026, buying an estimated $2.74M and bringing the position to 1,931,182 shares worth $31.5M. The position accounts for 1.12% of the portfolio, ranked #28.

Granahan Investment Management first reported a position in SIBN in Q4 2020 and has held it in 23 quarters since. 168 funds tracked by Wall St. Rank hold SIBN as of Q2 2026.

  • Granahan Investment Management held 1,931,182 shares of SI-BONE Inc worth $31.5M as of Q2 2026.
  • Granahan Investment Management bought 192,085 SI-BONE Inc shares in Q2 2026, an estimated $2.74M.
  • SI-BONE Inc made up 1.12% of Granahan Investment Management's portfolio in Q2 2026, its #28 holding.
  • Granahan Investment Management first reported a position in SI-BONE Inc in Q4 2020 and has held it in 23 quarters since.
  • 168 funds tracked by Wall St. Rank held SI-BONE Inc as of Q2 2026.

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