TSSTSSI
13F holders, Q3 2025 (September 30)99holders +4
35new positions
31sold out
5famous investors
$18.11avg. 13F price*
At the end of Q3 2025, 99 institutions reported holding TSS Inc. (TSSI) in their 13F filings, up 4 from Q2 2025. 35 opened new positions and 31 sold out. The largest holders were BlackRock, Inc. ($24.5M), Vanguard Group Inc. ($22.5M) and Citadel Advisors ($9.3M). 5 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- TSS Inc.
- CUSIP
- 87288V101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 35 | $32.0M |
| Exits | 31 | $42.2M |
All 13F filers, Q2 2025 → Q3 2025: 4,046,154 shares bought and 1,952,133 shares sold, net +2,094,021 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 99 holders
| BlackRock, Inc. | 0.00% | Add +13.7% | 1,350,532 | $24.5M |
| Vanguard Group Inc. | 0.00% | Add +31.2% | 1,240,958 | $22.5M |
| Citadel Advisors | 0.01% | Add +529.4% | 512,051 | $9.3M |
| Susquehanna International Group, LLP | 0.01% | Add +537.8% | 499,355 | $9.0M |
| Geode Capital Management, LLC | 0.00% | Add +27.7% | 497,823 | $9.0M |
| AWM Investment Company, Inc. | 0.76% | New | 450,000 | $8.1M |
| Value Aligned Research Advisors, LLC | 0.18% | Add +22.1% | 431,263 | $7.8M |
| Renaissance Technologies | 0.01% | Add +32.4% | 415,100 | $7.5M |
| Millennium Management | 0.01% | Reduce -3.7% | 375,853 | $6.8M |
| State Street Corp. | 0.00% | Add +47.4% | 365,616 | $6.6M |
| Trexquant Investment LP | 0.06% | New | 328,842 | $6.0M |
| Nuveen, LLC | 0.00% | Add +470.6% | 233,321 | $4.2M |
| Jane Street Group, LLC | 0.00% | New | 175,709 | $3.2M |
| Northern Trust Corp. | 0.00% | Add +12.5% | 151,340 | $2.7M |
| Goldman Sachs Group Inc. | 0.00% | Add +45.3% | 143,145 | $2.6M |
| Two Sigma Investments, LP | 0.00% | Reduce -30.6% | 140,180 | $2.5M |
| Man Group plc | 0.00% | New | 118,224 | $2.1M |
| Group One Trading LLC | 0.06% | New | 114,622 | $2.1M |
| LPL Financial LLC | 0.00% | Add +1055.9% | 114,218 | $2.1M |
| Morgan Stanley | 0.00% | Add +38.5% | 111,855 | $2.0M |
| UBS Group AG | 0.00% | Add +5.6% | 109,856 | $2.0M |
| Rockefeller Capital Management L.P. | 0.00% | Reduce -2.0% | 102,570 | $1.9M |
| Alliancebernstein L.P. | 0.00% | New | 95,960 | $1.7M |
| Precision Wealth Strategies, LLC | 0.50% | New | 85,445 | $1.5M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +11.5% | 58,068 | $1.1M |
| Verition Fund Management LLC | 0.01% | Reduce -38.2% | 54,012 | $978K |
| HighTower Advisors, LLC | 0.00% | Add +100.3% | 52,243 | $946K |
| American Century Companies Inc. | 0.00% | Add +73.9% | 51,916 | $940K |
| Gsa Capital Partners LLP | 0.07% | Add +72.8% | 47,925 | $868K |
| Wolverine Trading, LLC | 0.02% | New | 44,872 | $830K |
| Bank of New York Mellon Corp | 0.00% | Add +7.2% | 40,938 | $741K |
| Russell Investments Group, Ltd. | 0.00% | New | 39,484 | $715K |
| Cetera Investment Advisers | 0.00% | Add +206.7% | 39,218 | $710K |
| Centiva Capital, LP | 0.06% | New | 37,934 | $687K |
| JT Stratford LLC | 0.09% | Reduce -38.8% | 37,909 | $687K |
| Marathon Trading Investment Management LLC | 0.28% | New | 36,500 | $661K |
| Citizens Financial Group Inc. | 0.01% | Add +21.5% | 36,462 | $660K |
| Creative Financial Designs Inc. | 0.04% | Add +5.1% | 35,250 | $638K |
| BNP Paribas Financial Markets | 0.00% | Add +2142.3% | 34,800 | $630K |
| D. E. Shaw & Co. | 0.00% | Reduce -88.0% | 29,815 | $540K |
| Mesirow Financial Investment Management, Inc. | 0.01% | Reduce -40.3% | 29,643 | $537K |
| Huntleigh Advisors, Inc. | 0.09% | Reduce -46.1% | 29,434 | $533K |
| Palisades Investment Partners, LLC | 0.20% | New | 27,926 | $506K |
| AlphaQuest LLC | 0.03% | New | 26,406 | $478K |
| Barclays PLC | 0.00% | Reduce -18.1% | 26,296 | $476K |
| Rhumbline Advisers | 0.00% | Reduce -1.1% | 25,741 | $466K |
| Pinnacle Wealth Planning Services, Inc. | 0.05% | New | 25,000 | $453K |
| Royal Bank of Canada | 0.00% | Reduce -74.8% | 23,441 | $424K |
| Cantor Fitzgerald, L. P. | 0.01% | New | 23,267 | $421K |
| AQR Capital Management | 0.00% | New | 22,929 | $415K |
| Wells Fargo & Company | 0.00% | Add +38.2% | 21,938 | $397K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Reduce -5.8% | 17,391 | $339K |
| Advisory Services Network, LLC | 0.00% | New | 18,419 | $334K |
| Kestra Advisory Services, LLC | 0.00% | New | 17,800 | $322K |
| J.W. Cole Advisors, Inc. | 0.01% | New | 16,520 | $299K |
| Stifel Financial Corp. | 0.00% | Add +1.6% | 16,416 | $297K |
| Osaic Holdings, Inc. | 0.00% | Add +83.6% | 16,876 | $271K |
| Thompson Davis & Co., Inc. | 0.15% | New | 13,500 | $244K |
| Deutsche Bank AG | 0.00% | Add +13.8% | 13,348 | $242K |
| SeaCrest Wealth Management, LLC | 0.03% | New | 11,654 | $238K |
| Vestor Capital, LLC | 0.01% | Add +380.0% | 12,000 | $217K |
| NewEdge Advisors, LLC | 0.00% | New | 11,654 | $211K |
| MetLife Investment Management, LLC | 0.00% | No change | 11,243 | $204K |
| Invesco Ltd. | 0.00% | Reduce -0.2% | 11,236 | $203K |
| Moneco Advisors, LLC | 0.02% | No change | 10,860 | $197K |
| Bank of America Corp. | 0.00% | Reduce -15.7% | 9,278 | $168K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -14.8% | 8,520 | $154K |
| JPMorgan Chase & Co. | 0.00% | Reduce -6.4% | 8,077 | $146K |
| STRS Ohio | 0.00% | No change | 6,900 | $125K |
| SG Americas Securities, LLC | 0.00% | Add +37.5% | 6,622 | $120K |
| New York State Common Retirement Fund | 0.00% | No change | 5,800 | $105K |
| Simplex Trading, LLC | 0.00% | New | 5,714 | $103K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | Add +34.8% | 5,422 | $98K |
| State of Wyoming | 0.01% | New | 5,290 | $96K |
| B. Riley Wealth Advisors, Inc. | 0.00% | New | 5,000 | $91K |
| Citigroup Inc. | 0.00% | Reduce -43.6% | 3,654 | $66K |
| Toronto Dominion Bank | 0.00% | New | 3,000 | $55K |
| Legal & General Group Plc | 0.00% | No change | 2,033 | $37K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 1,863 | $34K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -47.3% | 1,648 | $30K |
| California State Teachers Retirement System | 0.00% | Add +0.1% | 1,140 | $21K |
| Rialto Wealth Management, LLC | 0.00% | No change | 917 | $17K |
| Amalgamated Bank | 0.00% | No change | 623 | $11K |
| FMR LLC | 0.00% | Add +45.0% | 532 | $10K |
| Valley National Advisers Inc. | 0.00% | New | 500 | $9K |
| MAI Capital Management | 0.00% | New | 409 | $7K |
| IFP Advisors, Inc | 0.00% | No change | 387 | $7K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 201 | $4K |
| Silicon Valley Capital Partners | 0.00% | No change | 120 | $2K |
| Jones Financial Companies LLLP | 0.00% | Add +144.0% | 122 | $2K |
| Farther Finance Advisors, LLC | 0.00% | New | 58 | $1K |
| Sterling Capital Management LLC | 0.00% | No change | 44 | $797 |
| US Bancorp \de | 0.00% | New | 27 | $489 |
| Islay Capital Management, LLC | 0.00% | New | 25 | $453 |
| GAMMA Investing LLC | 0.00% | New | 24 | $435 |
| Caitong International Asset Management Co., Ltd | 0.00% | Reduce -99.7% | 18 | $326 |
| Arax Advisory Partners | 0.00% | New | 3 | $54 |
| PNC Financial Services Group, Inc. | 0.00% | New | 2 | $36 |
| Cwm, LLC | 0.00% | New | 13 | $0 |
"% of holder's portfolio" is TSSI's weight in each manager's 13F, not the share of TSS Inc. the manager owns.