Vault-13

SIXTH STREET SPECIALTY LENDI TSLX

COM · Common Stock · CUSIP 83012A109

258 institutional holders +10 vs Q3 2025
50,377,10350.4m shares reported held*
$1.1bnreported value*
27 new 102 added 68 reduced 24 sold out net bought ≈ $62.6m (+2.9m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($743.9k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $22.75. Options: 4 managers hold calls ($1.9m notional), 2 hold puts ($560.4k).

Trends to Q4 2025

Institutional holders

Managers reporting a position, each quarter

0100200300Q3 22: 176Q4 22: 196Q1 23: 195Q2 23: 203Q3 23: 207Q4 23: 223Q1 24: 222Q2 24: 225Q3 24: 203Q4 24: 224Q1 25: 237Q2 25: 246Q3 25: 248Q4 25: 258258Q3 22Q2 23Q1 24Q4 24Q4 25
Numbers
QuarterHolders
Q3 2022176
Q4 2022196
Q1 2023195
Q2 2023203
Q3 2023207
Q4 2023223
Q1 2024222
Q2 2024225
Q3 2024203
Q4 2024224
Q1 2025237
Q2 2025246
Q3 2025248
Q4 2025258

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
2000200Q1 24: 115 bought or addedQ1 24: 71 cut or sold outQ2 24: 109 bought or addedQ2 24: 83 cut or sold outQ2 24Q3 24: 95 bought or addedQ3 24: 91 cut or sold outQ4 24: 103 bought or addedQ4 24: 75 cut or sold outQ4 24Q1 25: 123 bought or addedQ1 25: 76 cut or sold outQ2 25: 126 bought or addedQ2 25: 87 cut or sold outQ2 25Q3 25: 127 bought or addedQ3 25: 92 cut or sold outQ4 25: 129 bought or addedQ4 25: 92 cut or sold outQ4 25
Numbers
QuarterBought or addedCut or sold out
Q1 202411571
Q2 202410983
Q3 20249591
Q4 202410375
Q1 202512376
Q2 202512687
Q3 202512792
Q4 202512992

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$2m$4m$6mQ1 25 calls: $2.0mQ1 25 puts: $3.9mQ1 25P/C 1.98Q2 25 calls: $4.4mQ2 25 puts: $1.5mQ2 25P/C 0.33Q3 25 calls: $3.5mQ3 25 puts: $2.5mQ3 25P/C 0.71Q4 25 calls: $1.9mQ4 25 puts: $560.4kQ4 25P/C 0.29
Numbers
QuarterCallsPutsP/C
Q1 2025$2.0m$3.9m1.98
Q2 2025$4.4m$1.5m0.33
Q3 2025$3.5m$2.5m0.71
Q4 2025$1.9m$560.4k0.29

Biggest buyers

BANK OF MONTREAL /CAN/ Added +1,845,088+1.8m
MORGAN STANLEY Added +386,591+386.6k
GOLDMAN SACHS GROUP INC Added +319,665+319.7k
Altshuler Shaham Ltd New +301,460+301.5k
UBS Group AG Added +299,564+299.6k
OMERS ADMINISTRATION Corp Added +286,724+286.7k
Muzinich & Co., Inc. Added +245,940+245.9k
Callodine Capital Management, LP Added +230,559+230.6k
Qube Research & Technologies Ltd Added +197,508+197.5k
Stratos Wealth Advisors, LLC New +190,094+190.1k

Biggest sellers

JPMORGAN CHASE & CO Reduced -1,053,237-1.1m
TWO SIGMA ADVISERS, LP Reduced -262,991-263.0k
VAN ECK ASSOCIATES CORP Reduced -187,140-187.1k
LSV ASSET MANAGEMENT Reduced -181,500-181.5k
TWO SIGMA INVESTMENTS, LP Reduced -176,845-176.8k
HRT FINANCIAL LP Sold out -162,375-162.4k
ROYAL BANK OF CANADA Reduced -130,564-130.6k
D. E. Shaw & Co., Inc. Sold out -93,900-93.9k
Atom Investors LP Reduced -80,590-80.6k
Rockefeller Capital Management L.P. Reduced -57,565-57.6k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $821.0k37.8k shares
CITADEL ADVISORS LLC Reduced $638.6k29.4k shares
JANE STREET GROUP, LLC Reduced $297.6k13.7k shares
GROUP ONE TRADING LLC Reduced $167.2k7.7k shares

Biggest puts

CITADEL ADVISORS LLC Added $338.8k15.6k shares
HBK INVESTMENTS L P Unchanged $221.5k10.2k shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
STRS OHIO 13G · institution +1.2 pts · filed 2026-08-14 6.3% +1.2 pts 0 2026-08-14

Insider purchases and sales in Q4 2025

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
202Q1 24: 0 buyingQ1 24: 0 sellingQ2 24: 1 buyingQ2 24: 0 sellingQ2 24Q3 24: 2 buyingQ3 24: 0 sellingQ4 24: 1 buyingQ4 24: 0 sellingQ4 24Q1 25: 0 buyingQ1 25: 0 sellingQ2 25: 0 buyingQ2 25: 0 sellingQ2 25Q3 25: 0 buyingQ3 25: 0 sellingQ4 25: 1 buyingQ4 25: 0 sellingQ4 25
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q1 20240—0——
Q2 20241$161.2k0——
Q3 20242$149.8k0——
Q4 20241$20.5k0——
Q1 20250—0——
Q2 20250—0——
Q3 20250—0——
Q4 20251$208.5k0——
DateInsiderTradeSharesPrice ValueTheir holding
2025-11-18 Stanley Robert J. Co-CEO, director Bought 10,000 $20.85 $208.5k10.0k shares +67%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q4 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Sixth Street Partners Management Company, L.P. 6.06% of their portfolio Dallas, TX 2,714,2262.7m $59.0m $59.0m 6.06% Unchanged
2 Sound Income Strategies, LLC 2.65% of their portfolio FT LAUDERDALE, FL 2,511,1152.5m $56.0m $56.0m 2.65% Added +108.7k +108,708
3 Progeny 3, Inc. 2.90% of their portfolio KIRKLAND, WA 2,476,3982.5m $53.8m $53.8m 2.90% Unchanged
4 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 2,390,6282.4m $51.9m $51.9m 0.00% Added +386.6k +386,591
5 VAN ECK ASSOCIATES CORP 0.04% of their portfolio NEW YORK, NY 2,342,0472.3m $50.9m $50.9m 0.04% Reduced -187.1k -187,140
6 BANK OF MONTREAL /CAN/ 0.02% of their portfolio TORONTO, A6 2,284,9202.3m $49.6m $49.6m 0.02% Added +1.8m +1,845,088
7 STRS OHIO 0.17% of their portfolio COLUMBUS, OH 2,154,1592.2m $46.8m $46.8m 0.17% Added +50.0k +49,986
8 UBS Group AG 0.01% of their portfolio ZURICH, V8 1,616,1611.6m $35.1m $35.1m 0.01% Added +299.6k +299,564
9 Allen Investment Management, LLC 0.38% of their portfolio NEW YORK, NY 1,560,2471.6m $33.9m $33.9m 0.38% Added +1.6k +1,580
10 ARES MANAGEMENT LLC 1.68% of their portfolio LOS ANGELES, CA 1,354,7791.4m $29.4m $29.4m 1.68% Reduced -40.0k -40,000
11 WELLS FARGO & COMPANY/MN 0.01% of their portfolio SAN FRANCISCO, CA 1,270,8161.3m $27.6m $27.6m 0.01% Added +45.9k +45,870
12 Callodine Capital Management, LP 1.92% of their portfolio BOSTON, MA 1,101,9921.1m $23.9m $23.9m 1.92% Added +230.6k +230,559
13 Muzinich & Co., Inc. 6.78% of their portfolio NEW YORK, NY 992,898992.9k $21.6m $21.6m 6.78% Added +245.9k +245,940
14 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 934,233934.2k $20.3m $20.3m 0.00% Reduced -1.1m -1,053,237
15 RAYMOND JAMES FINANCIAL INC 0.01% of their portfolio ST. PETERSBURG, FL 896,117896.1k $19.5m $19.5m 0.01% Added +24.0k +23,978
16 BlackRock, Inc. 0.00% of their portfolio New York, NY 808,428808.4k $17.6m $17.6m 0.00% Reduced -3.0k -3,002
17 LSV ASSET MANAGEMENT 0.04% of their portfolio CHICAGO, IL 791,212791.2k $17.2m $17.2m 0.04% Reduced -181.5k -181,500
18 Advisors Capital Management, LLC 0.20% of their portfolio RIDGEWOOD, NJ 767,489767.5k $16.7m $16.7m 0.20% Added +20.8k +20,763
19 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 752,631752.6k $16.3m $16.3m 0.00% Added +60.3k +60,344
20 Sumitomo Mitsui Trust Group, Inc. 0.01% of their portfolio CHIYODA-KU, TOKYO, M0 741,125741.1k $16.1m $16.1m 0.01% Added +78.2k +78,229
21 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 693,805693.8k $15.1m $15.1m 0.00% Added +31.9k +31,892
22 Legal & General Group Plc 0.00% of their portfolio London, X0 665,352665.4k $14.5m $14.5m 0.00% Added +91.6k +91,578
23 SCS Capital Management LLC 0.15% of their portfolio BOSTON, MA 649,887649.9k $14.1m $14.1m 0.15% Added +13.5k +13,549
24 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 633,157633.2k $13.8m $13.8m 0.00% Added +44.2k +44,190
25 STIFEL FINANCIAL CORP 0.01% of their portfolio ST. LOUIS, MO 626,976627.0k $13.6m $13.6m 0.01% Added +14.4k +14,449
26 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 624,196624.2k $13.6m $13.6m 0.00% Added +319.7k +319,665
27 TECTONIC ADVISORS LLC 0.71% of their portfolio FRISCO, TX 617,476617.5k $13.4m $13.4m 0.71% Added +58.5k +58,538
28 Melia Wealth LLC 6.20% of their portfolio TULSA, OK 617,204617.2k $13.4m $13.4m 6.20% Reduced -5.7k -5,694
29 Cetera Investment Advisers 0.01% of their portfolio SCHAUMBURG, IL 593,881593.9k $12.9m $12.9m 0.01% Added +35.9k +35,935
30 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 571,158571.2k $12.4m $12.4m 0.00% Added +24.8k +24,811
31 Columbus Macro, LLC 1.30% of their portfolio NEW CASTLE, PA 547,164547.2k $11.9m $11.9m 1.30% Added +50.4k +50,354
32 NEUBERGER BERMAN GROUP LLC 0.01% of their portfolio NEW YORK, NY 526,234526.2k $11.4m $11.4m 0.01% Added +63.8k +63,808
33 Gilman Hill Asset Management, LLC 1.62% of their portfolio NEW CANAAN, CT 474,356474.4k $10.3m $10.3m 1.62% Added +35 +35
34 OMERS ADMINISTRATION Corp 0.07% of their portfolio TORONTO, A6 469,109469.1k $10.2m $10.2m 0.07% Added +286.7k +286,724
35 Cresset Asset Management, LLC 0.04% of their portfolio Chicago, IL 404,639404.6k $8.8m $8.8m 0.04% Added +101.0k +101,001
36 TWO SIGMA ADVISERS, LP 0.02% of their portfolio NEW YORK, NY 393,298393.3k $8.5m $8.5m 0.02% Reduced -263.0k -262,991
37 Cerity Partners LLC 0.01% of their portfolio NEW YORK, NY 384,767384.8k $8.4m $8.4m 0.01% Reduced -25.2k -25,201
38 TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio NEW YORK, NY 370,223370.2k $8.0m $8.0m 0.01% Reduced -176.8k -176,845
39 MGO ONE SEVEN LLC 0.16% of their portfolio Beachwood, OH 366,017366.0k $7.9m $7.9m 0.16% Reduced -32.3k -32,261
40 Altshuler Shaham Ltd 0.10% of their portfolio Tel Aviv, L3 301,460301.5k $6.5m $6.5m 0.10% New
41 Qube Research & Technologies Ltd 0.01% of their portfolio LONDON, X0 269,578269.6k $5.9m $5.9m 0.01% Added +197.5k +197,508
42 First National Trust Co 0.18% of their portfolio Johnstown, PA 247,436247.4k $5.4m $5.4m 0.18% Unchanged
43 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 230,749230.7k $5.0m $5.0m 0.00% Added +163 +163
44 CONFLUENCE INVESTMENT MANAGEMENT LLC 0.07% of their portfolio ST. LOUIS, MO 225,778225.8k $4.9m $4.9m 0.07% Reduced -8.1k -8,130
45 Janney Montgomery Scott LLC 0.01% of their portfolio PHILADELPHIA, PA 224,913224.9k $4.9m $4.9m 0.01% Reduced -26.1k -26,139
46 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 221,438221.4k $4.8m $4.8m 0.00% Reduced -37.9k -37,860
47 Advisors Asset Management, Inc. 0.08% of their portfolio Monument, CO 216,004216.0k $4.7m $4.7m 0.08% Reduced -12.8k -12,750
48 BENJAMIN EDWARDS INC 0.05% of their portfolio Clayton, MO 215,726215.7k $4.7m $4.7m 0.05% Added +1.0k +1,037
49 RMR Capital Management, LLC 3.10% of their portfolio Tustin, CA 197,718197.7k $4.3m $4.3m 3.10% Reduced -16.5k -16,531
50 D.A. DAVIDSON & CO. 0.03% of their portfolio GREAT FALLS, MT 191,676191.7k $4.2m $4.2m 0.03% Added +9.1k +9,085
51 Stratos Wealth Advisors, LLC 0.20% of their portfolio BEACHWOOD, OH 190,094190.1k $4.1m $4.1m 0.20% New
52 Parkwood LLC 0.34% of their portfolio CLEVELAND, OH 184,819184.8k $4.0m $4.0m 0.34% Unchanged
53 Clayton Partners LLC 2.79% of their portfolio BERKELEY, CA 178,121178.1k $3.9m $3.9m 2.79% Added +41.0k +40,999
54 CANADA LIFE ASSURANCE Co 0.01% of their portfolio WINNIPEG, A2 164,256164.3k $3.6m $3.6m 0.01% Added +5.5k +5,543
55 Truvestments Capital LLC 0.65% of their portfolio SARASOTA, FL 164,193164.2k $3.6m $3.6m 0.65% Reduced -5.2k -5,199
56 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 156,787156.8k $3.4m $3.4m 0.00% Added +27.2k +27,192
57 Corient Private Wealth LP 0.00% of their portfolio MIAMI, FL 156,474156.5k $3.4m $3.4m 0.00% Added +89.0k +89,002
58 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 155,887155.9k $3.4m $3.4m 0.00% Reduced -130.6k -130,564
59 Texas Capital Bank Wealth Management Services Inc 0.19% of their portfolio Dallas, TX 153,014153.0k $3.3m $3.3m 0.19% Reduced -982 -982
60 Universal- Beteiligungs- und Servicegesellschaft mbH 0.01% of their portfolio FRANKFURT AM MAIN, 2M 150,549150.5k $3.3m $3.3m 0.01% Unchanged
61 Rockefeller Capital Management L.P. 0.01% of their portfolio NEW YORK, NY 148,369148.4k $3.2m $3.2m 0.01% Reduced -57.6k -57,565
62 National Philanthropic Trust 0.03% of their portfolio Jenkintown, PA 146,000146.0k $3.2m $3.2m 0.03% Added +46.0k +46,000
63 Naviter Wealth, LLC 0.40% of their portfolio LITTLE ROCK, AR 141,461141.5k $3.1m $3.1m 0.40% Reduced -8.3k -8,303
64 Waterloo Capital, L.P. 0.22% of their portfolio AUSTIN, TX 140,396140.4k $3.0m $3.0m 0.22% Added +32.0k +31,992
65 DENALI ADVISORS LLC 0.34% of their portfolio SAN DIEGO, CA 140,144140.1k $3.0m $3.0m 0.34% Reduced -19.0k -18,989
66 Argent Trust Co 0.10% of their portfolio NASHVILLE, TN 135,826135.8k $3.0m $3.0m 0.10% Added +2.1k +2,108
67 Wealthstar Advisors, LLC 1.53% of their portfolio Plano, TX 129,509129.5k $2.8m $2.8m 1.53% Added +14 +14
68 Aberdeen Group plc 0.00% of their portfolio EDINBURGH, X0 123,237123.2k $2.7m $2.7m 0.00% Unchanged
69 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 114,263114.3k $2.5m $2.5m 0.00% Added +22.1k +22,055
70 IHT Wealth Management, LLC 0.06% of their portfolio Chicago, IL 110,074110.1k $2.4m $2.4m 0.06% Added +2.3k +2,265
71 Atom Investors LP 0.18% of their portfolio AUSTIN, TX 107,014107.0k $2.3m $2.3m 0.18% Reduced -80.6k -80,590
72 Ignite Planners, LLC 0.34% of their portfolio SAN CLEMENTE, CA 102,317102.3k $2.2m $2.2m 0.34% Added +32.9k +32,850
73 CWM, LLC 0.01% of their portfolio OMAHA, NE 92,32592.3k $2.0m $2.0m 0.01% Reduced -43.2k -43,177
74 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 91,95992.0k $2.0m $2.0m 0.00% Added +1.2k +1,225
75 RIVERBRIDGE PARTNERS LLC 0.04% of their portfolio MINNEAPOLIS, MN 89,93889.9k $2.0m $2.0m 0.04% Added +39.9k +39,919
76 &PARTNERS 0.01% of their portfolio NASHVILLE, TN 86,96587.0k $1.9m $1.9m 0.01% Added +67.4k +67,360
77 HB Wealth Management, LLC 0.01% of their portfolio Atlanta, GA 75,75175.8k $1.6m $1.6m 0.01% Reduced -1.6k -1,625
78 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 75,08575.1k $1.6m $1.6m 0.00% Reduced -3.6k -3,584
79 Plan Group Financial, LLC 0.41% of their portfolio OKLAHOMA CITY, OK 73,25773.3k $1.6m $1.6m 0.41% Added +9.6k +9,635
80 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 72,06672.1k $1.6m $1.6m 0.00% Reduced -16.9k -16,851
81 Legacy Capital Wealth Partners, LLC 0.32% of their portfolio LITTLE ROCK, AR 68,08268.1k $1.5m $1.5m 0.32% Added +6.8k +6,823
82 Grantham, Mayo, Van Otterloo & Co. LLC 0.00% of their portfolio Boston, MA 67,84767.8k $1.5m $1.5m 0.00% Added +1.4k +1,357
83 IFP Advisors, Inc 0.03% of their portfolio TAMPA, FL 67,72767.7k $1.5m $1.5m 0.03% Added +13.5k +13,513
84 Lansforsakringar Fondforvaltning AB (publ) 0.01% of their portfolio Stockholm, V7 65,49365.5k $1.4m $1.4m 0.01% New
85 Aquatic Capital Management LLC 0.04% of their portfolio CHICAGO, IL 64,48864.5k $1.4m $1.4m 0.04% Added +31.7k +31,664
86 Beacon Pointe Advisors, LLC 0.01% of their portfolio NEWPORT BEACH, CA 62,51962.5k $1.4m $1.4m 0.01% Added +12.0k +12,000
87 Quantinno Capital Management LP 0.00% of their portfolio NEW YORK, NY 62,14462.1k $1.3m $1.3m 0.00% Added +2.8k +2,810
88 Caprock Group, LLC 0.03% of their portfolio BOISE, ID 60,56560.6k $1.3m $1.3m 0.03% Added +242 +242
89 INDEPENDENT FINANCIAL GROUP, LLC 0.03% of their portfolio SAN DIEGO, CA 59,31159.3k $1.3m $1.3m 0.03% Added +2.0k +1,954
90 FJ Capital Management LLC 0.14% of their portfolio MCLEAN, VA 58,42358.4k $1.3m $1.3m 0.14% Reduced -33.4k -33,404
91 DEARBORN PARTNERS LLC 0.06% of their portfolio CHICAGO, IL 56,42956.4k $1.2m $1.2m 0.06% Reduced -2.7k -2,699
92 Lifetime Wealth Management P.C. 0.75% of their portfolio ROCKWALL, TX 54,88754.9k $1.2m $1.2m 0.75% First filing
93 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 54,37454.4k $1.2m $1.2m 0.00% Added +12.6k +12,642
94 BROWN ADVISORY INC 0.00% of their portfolio BALTIMORE, MD 48,71348.7k $1.1m $1.1m 0.00% Added +9.7k +9,714
95 HighTower Advisors, LLC 0.00% of their portfolio CHICAGO, IL 47,42247.4k $1.0m $1.0m 0.00% Reduced -6.8k -6,757
96 Cornerstone Wealth Management, LLC 0.05% of their portfolio ST. PETERS, MO 47,09347.1k $1.0m $1.0m 0.05% Added +970 +970
97 Canton Hathaway, LLC 0.19% of their portfolio PROVIDENCE, RI 46,53546.5k $1.0m $1.0m 0.19% Unchanged
98 TRED AVON FAMILY WEALTH, LLC 0.31% of their portfolio EASTON, MD 44,02644.0k $956.2k $956.2k 0.31% Reduced -965 -965
99 Savvy Advisors, Inc. 0.03% of their portfolio NEW YORK, NY 43,38943.4k $942.4k $942.4k 0.03% Added +3.0k +2,999
100 Pallas Capital Advisors LLC 0.03% of their portfolio BRAINTREE, MA 43,25543.3k $939.5k $939.5k 0.03% Reduced -1.4k -1,361