Vanguard Group
OSG

Vanguard Group’s Octave Specialty Group OSG Stock Holding History

Vanguard Group’s Portfolio OSG Stock Details OSG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		$19.5M Sell
2,508,395
-46,786
-2% -$400K ﹤0.01% 2627
2025
Q3 		$21.3M Sell
2,555,181
-13,259
-0.5% -$112K ﹤0.01% 2588
2025
Q2 		$18.2M Sell
2,568,440
-92,442
-3% -$688K ﹤0.01% 2599
2025
Q1 		$23.3M Sell
2,660,882
-555,166
-17% -$5.85M ﹤0.01% 2444
2024
Q4 		$40.7M Sell
3,216,048
-902,375
-22% -$10.9M ﹤0.01% 2256
2024
Q3 		$46.2M Sell
4,118,423
-768,635
-16% -$8.99M ﹤0.01% 2217
2024
Q2 		$62.7M Buy
4,887,058
+53,590
+1% +$817K ﹤0.01% 2060
2024
Q1 		$75.5M Sell
4,833,468
-1,897
-0% -$29.9K ﹤0.01% 1998
2023
Q4 		$79.7M Buy
4,835,365
+11,586
+0.2% +$161K ﹤0.01% 1975
2023
Q3 		$58.2M Sell
4,823,779
-135,709
-3% -$1.82M ﹤0.01% 2062
2023
Q2 		$70.6M Sell
4,959,488
-235,670
-5% -$3.45M ﹤0.01% 2039
2023
Q1 		$80.4M Buy
5,195,158
+207,184
+4% +$3.35M ﹤0.01% 1927
2022
Q4 		$87M Buy
4,987,974
+235,544
+5% +$3.5M ﹤0.01% 1878
2022
Q3 		$60.6M Buy
4,752,430
+241,449
+5% +$3.22M ﹤0.01% 2089
2022
Q2 		$51.2M Sell
4,510,981
-648,176
-13% -$6.15M ﹤0.01% 2182
2022
Q1 		$53.7M Buy
5,159,157
+177,767
+4% +$2.41M ﹤0.01% 2267
2021
Q4 		$80M Buy
4,981,390
+124,312
+3% +$1.95M ﹤0.01% 2102
2021
Q3 		$69.6M Buy
4,857,078
+36,545
+0.8% +$522K ﹤0.01% 2181
2021
Q2 		$75.5M Buy
4,820,533
+144,524
+3% +$2.32M ﹤0.01% 2153
2021
Q1 		$78.3M Buy
4,676,009
+168,699
+4% +$2.76M ﹤0.01% 2082
2020
Q4 		$69.3M Buy
4,507,310
+30,342
+0.7% +$447K ﹤0.01% 2033
2020
Q3 		$57.2M Sell
4,476,968
-95,351
-2% -$1.23M ﹤0.01% 1942
2020
Q2 		$65.5M Buy
4,572,319
+53,767
+1% +$786K ﹤0.01% 1870
2020
Q1 		$55.8M Buy
4,518,552
+97,955
+2% +$1.88M ﹤0.01% 1824
2019
Q4 		$95.4M Buy
4,420,597
+82,057
+2% +$1.68M ﹤0.01% 1796
2019
Q3 		$84.8M Sell
4,338,540
-15,112
-0.3% -$278K ﹤0.01% 1814
2019
Q2 		$73.4M Sell
4,353,652
-391,319
-8% -$6.68M ﹤0.01% 1910
2019
Q1 		$86M Buy
4,744,971
+90,152
+2% +$1.72M ﹤0.01% 1824
2018
Q4 		$80.3M Buy
4,654,819
+2,497,176
+116% +$45.8M ﹤0.01% 1801
2018
Q3 		$44.1M Buy
2,157,643
+15,930
+0.7% +$333K ﹤0.01% 2208
2018
Q2 		$42.5M Buy
2,141,713
+72,593
+4% +$1.34M ﹤0.01% 2206
2018
Q1 		$32.4M Sell
2,069,120
-108,394
-5% -$1.68M ﹤0.01% 2299
2017
Q4 		$34.8M Buy
2,177,514
+235,390
+12% +$3.62M ﹤0.01% 2251
2017
Q3 		$33.5M Buy
1,942,124
+55,992
+3% +$1.03M ﹤0.01% 2249
2017
Q2 		$32.7M Sell
1,886,132
-14,905
-0.8% -$265K ﹤0.01% 2233
2017
Q1 		$35.9M Sell
1,901,037
-325,308
-15% -$6.84M ﹤0.01% 2161
2016
Q4 		$50.1M Buy
2,226,345
+228,912
+11% +$5M ﹤0.01% 1974
2016
Q3 		$36.7M Sell
1,997,433
-158,718
-7% -$2.85M ﹤0.01% 2075
2016
Q2 		$35.5M Buy
2,156,151
+108,235
+5% +$1.74M ﹤0.01% 2050
2016
Q1 		$32.4M Sell
2,047,916
-188,336
-8% -$2.72M ﹤0.01% 2076
2015
Q4 		$31.5M Buy
2,236,252
+65,906
+3% +$1.01M ﹤0.01% 2108
2015
Q3 		$31.4M Buy
2,170,346
+40,643
+2% +$659K ﹤0.01% 2080
2015
Q2 		$35.4M Sell
2,129,703
-37,614
-2% -$888K ﹤0.01% 2109
2015
Q1 		$52.4M Buy
2,167,317
+68,134
+3% +$1.73M ﹤0.01% 1885
2014
Q4 		$51.4M Sell
2,099,183
-403,420
-16% -$9.39M ﹤0.01% 1817
2014
Q3 		$55.3M Sell
2,502,603
-11,422
-0.5% -$269K ﹤0.01% 1739
2014
Q2 		$68.7M Buy
2,514,025
+47,313
+2% +$1.37M 0.01% 1655
2014
Q1 		$76.5M Buy
2,466,712
+627,210
+34% +$17.3M 0.01% 1538
2013
Q4 		$45.2M Sell
1,839,502
-31,027
-2% -$650K ﹤0.01% 1838
2013
Q3 		$33.9M Buy
1,870,529
+65,933
+4% +$1.5M ﹤0.01% 1923
2013
Q2 		$43M Buy
+1,804,596
New +$43.7M ﹤0.01% 1729

Other funds holding OSG

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
WSL
Western Standard LLC Los Angeles, California $295M AUM 40.98% 1-Year Est. Return
WHCM
Wolf Hill Capital Management Greenwich, Connecticut $1.2B AUM 137.35% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
GJL
Gendell Jeffrey L $11.3B AUM 163.05% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
BCC
Bain Capital Credit Boston, Massachusetts $368M AUM 9.33% 1-Year Est. Return
CM
Caption Management Oklahoma City, Oklahoma $21.5B AUM 81.81% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Group's OSG Position: Q4 2025 in Review

Vanguard Group reduced its Octave Specialty Group (OSG) stake by 1.8% in Q4 2025, selling an estimated $400K and leaving 2,508,395 shares worth $19.5M. The position accounts for ﹤0.01% of the portfolio, ranked #2627.

Vanguard Group first reported a position in OSG in Q2 2013 and has held it in 51 quarters since. The position peaked at $95.4M in Q4 2019. 144 funds tracked by Wall St. Rank hold OSG as of Q4 2025.

  • Vanguard Group held 2,508,395 shares of Octave Specialty Group worth $19.5M as of Q4 2025.
  • Vanguard Group sold 46,786 Octave Specialty Group shares in Q4 2025, an estimated $400K.
  • Octave Specialty Group made up ﹤0.01% of Vanguard Group's portfolio in Q4 2025, its #2627 holding.
  • Vanguard Group first reported a position in Octave Specialty Group in Q2 2013 and has held it in 51 quarters since.
  • Vanguard Group's Octave Specialty Group position peaked at $95.4M in Q4 2019.
  • 144 funds tracked by Wall St. Rank held Octave Specialty Group as of Q4 2025.

Based on Vanguard Group's 13F filing for Q4 2025, filed 29 Jan 2026.