TSSTSSI
13F holders, Q1 2026 (March 31)109holders +17
32new positions
18sold out
4famous investors
$12.99avg. 13F price*
At the end of Q1 2026, 109 institutions reported holding TSS Inc. (TSSI) in their 13F filings, up 17 from Q4 2025. 32 opened new positions and 18 sold out. The largest holders were BlackRock, Inc. ($23.0M), Vanguard Capital Management LLC ($12.6M) and Jane Street Group, LLC ($8.6M). 4 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- TSS Inc.
- CUSIP
- 87288V101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 32 | $17.4M |
| Exits | 18 | $4.9M |
All 13F filers, Q4 2025 → Q1 2026: 2,988,348 shares bought and 1,646,321 shares sold, net +1,342,027 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 109 holders
| BlackRock, Inc. | 0.00% | Add +16.1% | 1,770,890 | $23.0M |
| Vanguard Capital Management LLC | 0.00% | — | 968,440 | $12.6M |
| Jane Street Group, LLC | 0.01% | Add +173.0% | 658,081 | $8.6M |
| Geode Capital Management, LLC | 0.00% | Add +6.7% | 575,609 | $7.5M |
| UBS Group AG | 0.00% | Add +64.8% | 521,598 | $6.8M |
| Value Aligned Research Advisors, LLC | 0.07% | No change | 460,510 | $6.0M |
| State Street Corp. | 0.00% | Add +16.5% | 425,254 | $5.5M |
| Silvercrest Asset Management Group LLC | 0.04% | New | 416,514 | $5.4M |
| Millennium Management | 0.00% | Reduce -57.2% | 370,379 | $4.8M |
| LPL Financial LLC | 0.00% | Add +82.5% | 342,848 | $4.5M |
| Marshall Wace, LLP | 0.00% | New | 324,962 | $4.2M |
| Rockefeller Capital Management L.P. | 0.01% | Add +111.2% | 216,883 | $2.8M |
| D. E. Shaw & Co. | 0.00% | Add +150.5% | 185,901 | $2.4M |
| CenterBook Partners LP | 0.12% | New | 177,414 | $2.3M |
| Wells Fargo & Company | 0.00% | Add +287.1% | 173,472 | $2.3M |
| Northern Trust Corp. | 0.00% | Add +2.7% | 165,351 | $2.2M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 159,977 | $2.1M |
| Arosa Capital Management LP | 1.28% | Reduce -25.0% | 150,000 | $2.0M |
| Vanguard Portfolio Management LLC | 0.00% | — | 130,988 | $1.7M |
| Goldman Sachs Group Inc. | 0.00% | Add +110.5% | 124,020 | $1.6M |
| Morgan Stanley | 0.00% | Reduce -31.1% | 114,277 | $1.5M |
| Dupree Financial Group, LLC | 0.49% | Reduce -2.6% | 94,274 | $1.2M |
| Bank of New York Mellon Corp | 0.00% | Add +4.8% | 61,845 | $805K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -4.8% | 61,012 | $794K |
| Renaissance Technologies | 0.00% | Reduce -59.2% | 60,091 | $782K |
| Group One Trading LLC | 0.02% | New | 56,665 | $737K |
| Captrust Financial Advisors | 0.00% | New | 51,476 | $670K |
| Two Sigma Investments, LP | 0.00% | Reduce -46.7% | 49,518 | $644K |
| Nuveen, LLC | 0.00% | Add +0.7% | 41,173 | $536K |
| Wexford Capital LP | 0.09% | New | 40,000 | $520K |
| IMC-Chicago, LLC | 0.01% | Add +18.4% | 39,429 | $513K |
| Gsa Capital Partners LLP | 0.03% | Add +242.0% | 39,032 | $508K |
| HighTower Advisors, LLC | 0.00% | Add +7.4% | 35,369 | $460K |
| Kestra Advisory Services, LLC | 0.00% | Reduce -22.2% | 35,100 | $457K |
| XTX Topco Ltd | 0.01% | Reduce -43.9% | 34,263 | $446K |
| Centiva Capital, LP | 0.02% | New | 32,233 | $419K |
| AQR Capital Management | 0.00% | Add +198.8% | 32,131 | $418K |
| Royal Bank of Canada | 0.00% | Add +78.5% | 25,849 | $336K |
| Pinnacle Wealth Planning Services, Inc. | 0.03% | No change | 25,000 | $325K |
| Creative Financial Designs Inc. | 0.02% | Reduce -31.2% | 24,650 | $321K |
| Rhumbline Advisers | 0.00% | Add +2.3% | 24,256 | $316K |
| J.W. Cole Advisors, Inc. | 0.01% | Reduce -11.7% | 23,330 | $304K |
| Bank of America Corp. | 0.00% | Add +21.2% | 23,034 | $300K |
| Cetera Investment Advisers | 0.00% | Reduce -16.4% | 22,973 | $299K |
| Mesirow Financial Investment Management, Inc. | 0.00% | New | 22,643 | $295K |
| Trexquant Investment LP | 0.00% | New | 22,087 | $287K |
| Deutsche Bank AG | 0.00% | Add +49.3% | 21,054 | $274K |
| Quantinno Capital Management LP | 0.00% | New | 20,040 | $261K |
| Stifel Financial Corp. | 0.00% | No change | 16,166 | $210K |
| Osaic Holdings, Inc. | 0.00% | Reduce -11.6% | 15,232 | $198K |
| T. Rowe Price Associates Inc. | 0.00% | New | 15,027 | $196K |
| Invesco Ltd. | 0.00% | Add +4.8% | 14,972 | $195K |
| Brevan Howard Capital Management LP | 0.00% | New | 14,777 | $192K |
| Pekin Hardy Strauss, Inc. | 0.02% | New | 14,500 | $189K |
| Susquehanna International Group, LLP | 0.00% | Reduce -86.4% | 14,429 | $188K |
| Boothbay Fund Management, LLC | 0.00% | New | 14,242 | $185K |
| Ameriprise Financial Inc. | 0.00% | New | 13,564 | $176K |
| Cerity Partners LLC | 0.00% | New | 13,214 | $172K |
| Alliancebernstein L.P. | 0.00% | No change | 23,700 | $168K |
| LJI Wealth Management, LLC | 0.03% | New | 12,500 | $163K |
| Vestor Capital, LLC | 0.01% | Add +1786.8% | 12,000 | $156K |
| MetLife Investment Management, LLC | 0.00% | No change | 11,243 | $146K |
| Barclays PLC | 0.00% | Reduce -66.3% | 11,086 | $144K |
| Moneco Advisors, LLC | 0.01% | No change | 10,980 | $143K |
| American Century Companies Inc. | 0.00% | Reduce -58.2% | 10,554 | $137K |
| Algert Global LLC | 0.00% | New | 10,490 | $136K |
| Independent Financial Group, LLC | 0.00% | New | 10,300 | $134K |
| Integrated Wealth Concepts LLC | 0.00% | New | 10,280 | $134K |
| Cura Wealth Advisors, LLC | 0.06% | New | 10,000 | $130K |
| Diversified Trust Co. | 0.00% | New | 10,000 | $130K |
| Foundations Investment Advisors, LLC | 0.00% | New | 10,000 | $130K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +2.4% | 9,999 | $130K |
| Advisory Services Network, LLC | 0.00% | New | 9,759 | $127K |
| JPMorgan Chase & Co. | 0.00% | Add +16.8% | 10,081 | $119K |
| Vanguard Global Advisers, LLC | 0.00% | — | 8,836 | $115K |
| FMR LLC | 0.00% | Add +90.2% | 7,082 | $92K |
| Citigroup Inc. | 0.00% | Add +975.3% | 6,538 | $85K |
| New York State Common Retirement Fund | 0.00% | No change | 5,800 | $75K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 5,422 | $71K |
| BNP Paribas Financial Markets | 0.00% | Add +4.6% | 4,779 | $62K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -89.6% | 4,095 | $53K |
| Toronto Dominion Bank | 0.00% | No change | 3,000 | $39K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -26.0% | 2,701 | $35K |
| Quantbot Technologies LP | 0.00% | Reduce -96.0% | 2,640 | $34K |
| Legal & General Group Plc | 0.00% | Add +4.4% | 2,122 | $28K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 1,863 | $24K |
| Innovative Asset Advisors Group, LLC | 0.01% | — | 1,500 | $20K |
| California State Teachers Retirement System | 0.00% | Reduce -5.0% | 1,229 | $16K |
| Cwm, LLC | 0.00% | Add +122100.0% | 1,222 | $16K |
| Rialto Wealth Management, LLC | 0.00% | No change | 917 | $12K |
| Valley National Advisers Inc. | 0.00% | New | 800 | $10K |
| USA Financial Formulas | 0.00% | Add +642.0% | 653 | $8K |
| Farther Finance Advisors, LLC | 0.00% | Add +60800.0% | 609 | $8K |
| GAMMA Investing LLC | 0.00% | Add +170.3% | 638 | $8K |
| Kemnay Advisory Services Inc. | 0.00% | New | 515 | $7K |
| Financial Consulate, Inc. | 0.00% | No change | 500 | $7K |
| MAI Capital Management | 0.00% | Add +18.3% | 484 | $6K |
| Essential Partners LLC | 0.00% | New | 429 | $6K |
| IFP Advisors, Inc | 0.00% | No change | 387 | $5K |
| EverSource Wealth Advisors, LLC | 0.00% | New | 264 | $3K |
"% of holder's portfolio" is TSSI's weight in each manager's 13F, not the share of TSS Inc. the manager owns.