22 tracked 13F filers disclose a position in TPST as of the latest SEC 13F filings, a combined $1.3M 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 | SABBY MANAGEMENT, LLC | $568K | 511K | ▲29× Added · +493K sh | Q2 2026 | |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $384K | 234K | →First observed position No prior filed position | Q1 2026 | |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | $96K | 87K | ▼−0.4% Reduced · −365 sh | Q2 2026 | |
| 4 | VANGUARD FIDUCIARY TRUST CO | $113K | 69K | →First observed position No prior filed position | Q1 2026 | |
| 5 | BlackRock, Inc. | $64K | 39K | —Held | Q1 2026 | |
| 6 | FMR LLC | $54K | 33K | —Held | Q1 2026 | |
| 7 | NORTHERN TRUST CORP | $23K | 14K | —Held | Q1 2026 | |
| 8 | DIMENSIONAL FUND ADVISORS LP | $19K | 11K | —Held | Q1 2026 | |
| 9 | UBS Group AG | $7K | 5K | ▼−74% Reduced · −13K sh | Q1 2026 | |
| 10 | Tower Research Capital LLC (TRC) | $5K | 3K | ▲+111% Added · +1K sh | Q1 2026 | |
| 11 | MORGAN STANLEY | $3K | 2K | —Held | Q1 2026 | |
| 12 | OSAIC HOLDINGS, INC. | $2K | 2K | ▼−5.2% Reduced · −84 sh | Q1 2026 | |
| 13 | Federation des caisses Desjardins du Quebec | $479 | 292 | —Held | Q1 2026 | |
| 14 | JONES FINANCIAL COMPANIES LLLP | $413 | 239 | —Held | Q1 2026 | |
| 15 | Vanguard Global Advisers, LLC | $276 | 168 | →First observed position No prior filed position | Q1 2026 | |
| 16 | SBI Securities Co., Ltd. | $62 | 56 | —Held | Q2 2026 | |
| 17 | ROYAL BANK OF CANADA | $0 | 27 | ▲+238% Added · +19 sh | Q1 2026 | |
| 18 | Parallel Advisors, LLC | $30 | 18 | —Held | Q1 2026 | |
| 19 | CITIGROUP INC | $13 | 8 | ▲New +8 sh | Q1 2026 | |
| 20 | JPMORGAN CHASE & CO | $8 | 5 | ▲New +5 sh | Q1 2026 | |
| 21 | BNP PARIBAS FINANCIAL MARKETS | $5 | 3 | —Held | Q1 2026 | |
| 22 | Caitong International Asset Management Co., Ltd | $3 | 3 | ▲New +3 sh | Q2 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, 1 fund opened a new position in TPST and 2 added to an existing one, while 0 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 |
|---|---|---|
| NVIDIA CORPNVDA | 4 funds | $734.7M |
| APPLE INCAAPL | 4 funds | $528.6M |
| ALPHABET INC-CL AGOOGL | 4 funds | $265.9M |
| MICRON TECHNOLOGY INCMU | 4 funds | $226.7M |
| TESLA INCTSLA | 4 funds | $214.7M |
| AMAZON.COM INCAMZN | 4 funds | $209.1M |
| ALPHABET INC-CL CGOOG | 4 funds | $204.0M |
| ADVANCED MICRO DEVICESAMD | 4 funds | $99.3M |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 4 funds | $90.9M |
| SS SPDR S&P 500 ETF TRUST-USSPY | 4 funds | $87.2M |
| JPMORGAN CHASE & COJPM | 4 funds | $76.9M |
| INTEL CORPINTC | 4 funds | $75.0M |
Ranked by how many of TPST's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Mar 24, 2026 | Angel Matthew | CEO and President, Director, 10% Owner | Buy (P) | 231K | $500K |
| Mar 24, 2026 | Angel Matthew | CEO and President, Director, 10% Owner | Buy (P) | 231K | $500K |
| Aug 12, 2024 | Versant Venture Capital VI, L.P. | 10% Owner | Sell (S) | 388K | $427K |
| Aug 8, 2024 | Versant Venture Capital VI, L.P. | 10% Owner | Sell (S) | 400K | $540K |
| Jul 3, 2024 | Brady Stephen R | President and CEO, Director | Buy (P) | 35K | $74K |
| Jul 2, 2024 | Whiting Samuel | Chief Medical Officer | Buy (P) | 5K | $10K |
| Jun 28, 2024 | Trojanowski Justin | Corporate Controller | Buy (P) | 8K | $16K |
| Apr 29, 2022 | Woiwode Thomas | Director, 10% Owner | Buy (P) | 2.1M | $5.0M |
| Jan 7, 2022 | Dubensky Thomas W. | President, Director | Buy (P) | 2K | $10K |
| Jan 6, 2022 | Whiting Samuel | Chief Medical Officer | Buy (P) | 2K | $8K |
| Class | 13F holders | Value held |
|---|---|---|
| TPSTthis pageStock | 22 funds | $1.3M |
| OVASUSDCommon Stock | 1 funds | $774K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for TPST
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/TPST/capital-change-brief"
Use Arkolith's capital_change_brief for TPST. 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 TPST. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.