72 tracked 13F filers disclose a position in TLSI as of the latest SEC 13F filings, a combined $75.5M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | First Light Asset Management, LLC | $20.3M | 5.1M | ▲New +5.1M sh | Q1 2026 | |
| 2 | AWM Investment Company, Inc. | $8.3M | 2.1M | ▲+67% Added · +835K sh | Q1 2026 | |
| 3 | Nantahala Capital Management, LLC | $8.3M | 2.1M | —Held | Q1 2026 | |
| 4 | BlackRock, Inc. | $6.0M | 1.5M | ▼−2.3% Reduced · −35K sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $5.4M | 1.3M | →First observed position No prior filed position | Q1 2026 | |
| 6 | GILDER GAGNON HOWE & CO LLC | $3.6M | 889K | ▼−9.2% Reduced · −91K sh | Q1 2026 | |
| 7 | Cerity Partners LLC | $3.1M | 787K | ▲New +787K sh | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $3.1M | 777K | ▲+3.4% Added · +26K sh | Q1 2026 | |
| 9 | WHITE PINE CAPITAL LLC | $2.5M | 548K | ▲+174% Added · +348K sh | Q2 2026 | |
| 10 | KENNEDY CAPITAL MANAGEMENT LLC | $1.9M | 485K | ▲New +485K sh | Q1 2026 | |
| 11 | MORGAN STANLEY | $1.6M | 394K | ▲+7.8% Added · +29K sh | Q1 2026 | |
| 12 | STATE STREET CORP | $1.3M | 328K | ▲+24% Added · +63K sh | Q1 2026 | |
| 13 | Empire Financial Management Company, LLC | $1.2M | 300K | ▲+317% Added · +228K sh | Q1 2026 | |
| 14 | PERKINS CAPITAL MANAGEMENT INC | $1.1M | 235K | ▲+2.2% Added · +5K sh | Q2 2026 | |
| 15 | NORTHERN TRUST CORP | $886K | 221K | ▼−0.3% Reduced · −761 sh | Q1 2026 | |
| 16 | VANGUARD FIDUCIARY TRUST CO | $873K | 218K | →First observed position No prior filed position | Q1 2026 | |
| 17 | BANK OF AMERICA CORP /DE/ | $807K | 202K | ▲+1.9% Added · +4K sh | Q1 2026 | |
| 18 | APIS CAPITAL ADVISORS, LLC | $720K | 180K | ▲New +180K sh | Q1 2026 | |
| 19 | VANGUARD PORTFOLIO MANAGEMENT LLC | $659K | 165K | →First observed position No prior filed position | Q1 2026 | |
| 20 | Corient Private Wealth LLC | $364K | 91K | ▲New +91K sh | Q1 2026 | |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $337K | 84K | ▼−16% Reduced · −16K sh | Q1 2026 | |
| 22 | UBS Group AG | $318K | 80K | ▲15× Added · +74K sh | Q1 2026 | |
| 23 | GOLDMAN SACHS GROUP INC | $300K | 75K | ▲+14% Added · +9K sh | Q1 2026 | |
| 24 | CWA Asset Management Group, LLC | $328K | 72K | —Held | Q2 2026 | |
| 25 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $278K | 70K | —Held | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 13 funds opened a new position in TLSI and 10 added to an existing one, while 3 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 29 funds | $68.0B |
| NVIDIA CORPNVDA | 28 funds | $102.1B |
| APPLE INCAAPL | 28 funds | $81.4B |
| ELI LILLY & COLLY | 28 funds | $20.0B |
| JPMORGAN CHASE & COJPM | 28 funds | $14.5B |
| ALPHABET INC-CL AGOOGL | 27 funds | $37.0B |
| ALPHABET INC-CL CGOOG | 27 funds | $33.1B |
| META PLATFORMS INC-CLASS AMETA | 27 funds | $28.8B |
| TESLA INCTSLA | 27 funds | $16.7B |
| JOHNSON & JOHNSONJNJ | 27 funds | $8.5B |
| ADVANCED MICRO DEVICESAMD | 27 funds | $8.3B |
| BRISTOL-MYERS SQUIBB COBMY | 27 funds | $1.8B |
Ranked by how many of TLSI's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| May 15, 2026 | Gordon Gary B. | Director | Buy (P) | 10K | $25K |
| May 15, 2026 | Patience David | Chief Financial Officer | Buy (P) | 7K | $17K |
| May 15, 2026 | Szela Mary T | CEO and President, Director | Buy (P) | 40K | $103K |
| May 15, 2026 | Wahlstrom Mats | Director | Buy (P) | 60K | $152K |
| May 15, 2026 | Stansky Michael P | Director | Buy (P) | 410K | $1.0M |
| May 15, 2026 | Stansky Michael P | Director | Buy (P) | 200K | $500K |
| May 15, 2026 | Marshak Richard | Chief Commercial Officer | Sell (S) | 543 | $1K |
| Mar 17, 2026 | Szela Mary T | CEO and President, Director | Sell (S) | 16K | $61K |
| Mar 16, 2026 | Stevens Jennifer | Chief Regulatory Officer | Sell (S) | 774 | $3K |
| Mar 16, 2026 | Marshak Richard | Chief Commercial Officer | Sell (S) | 419 | $2K |
| Mar 16, 2026 | Cox Bryan F. | Chief of Research | Sell (S) | 579 | $2K |
| Mar 16, 2026 | Devlin Jodi | Chief of Clinical Operations | Sell (S) | 273 | $1K |
| Class | 13F holders | Value held |
|---|---|---|
| TLSIthis pagecs | 72 funds | $75.5M |
| TLSIWSPAC Combination | 6 funds | $1.1M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for TLSI
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/TLSI/capital-change-brief"
Use Arkolith's capital_change_brief for TLSI. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for TLSI. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.