TSSI TSS, Inc.: institutional ownership and insider trading
130 funds reported holding $202M of TSS, Inc. in their latest 13F filings; in Q2 2026 funds net bought $45.5M, with 37 new positions and 19 funds selling out; over the last 12 months insiders bought $40.0K and sold $8.89M on the open market.
Famous investors holding TSSI
- Ken Griffin (Citadel Advisors): $7.29M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $6.68M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $2.72M, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $1.70M, 0.0% of the portfolio
Largest institutional holders of TSSI
- BlackRock, Inc. (BLK) — $28.6M
- JANE STREET GROUP, LLC — $17.3M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP — $12.3M
- VANGUARD CAPITAL MANAGEMENT LLC — $11.9M
- VANGUARD GROUP INC — $9.10M
- SILVERCREST ASSET MANAGEMENT GROUP LLC — $8.38M
- GEODE CAPITAL MANAGEMENT, LLC — $7.71M
- WOLVERINE TRADING, LLC — $7.45M
- CITADEL ADVISORS LLC — $7.29M
- D. E. Shaw & Co., Inc. — $6.68M
Recent TSSI insider trades
- Jun 2, 2026: Woodward Peter H sold 300,000 shares ($4.76M)
- Jun 1, 2026: Brennan Kieran sold 10,000 shares ($160K)
- May 6, 2026: Dewan Darryll E sold 50,000 shares ($850K)
- Apr 22, 2026: Dewan Darryll E sold 50,000 shares ($800K)
5%+ owners
- BlackRock, Inc.: 6.7% (Schedule 13G/A, filed Jul 30, 2026)
- JANE STREET GROUP, LLC: 5.2% (Schedule 13G, filed Jun 1, 2026)