Live EDGAR monitoring

Institutional investors hide their positions
for 45 days every quarter.

We watch the whole time. WhaleLens ingests raw SEC 13F filings in hours — not weeks — and builds the analytical layer that turns hidden positions into actionable intelligence.

9,000+
Institutional filers tracked
<4 hrs
Filing alert latency
100%
Free SEC data
6 funds converging on NVDA CONVERGENCE ALERT
The gap isn't the data

The SEC gives raw XML.
We build the signal layer.

Every 13F filing is public the moment it hits EDGAR. The problem isn't access — it's speed, structure, and meaning. Raw filings are buried in inconsistent XML schemas. Most tools wait days to process them. And almost none tell you what actually matters: when smart money moves together.

Raw SEC EDGAR XML
Inconsistent schema, buried holdings
WhaleLens Processing
Structured, normalized, alert-ready
Signal Intelligence
Convergence, moves, position sizing
What you get

Intelligence, not just data

Core

Real-time filing alerts

Most tools refresh every 48 hours. WhaleLens alerts you within hours of an EDGAR submission. When Berkshire Hathaway files a new position, you know before the market opens the next day.

<4 hrs
vs. 48–72 hrs on WhaleWisdom
Signal

Whale convergence engine

When two high-conviction funds independently build the same position in the same quarter, that's not noise — it's signal. We track 9000+ filers and surface convergence patterns that solo-fund tracking misses.

Analytics

Portfolio intelligence

Not just what they bought — how they sized it. Position value relative to fund AUM. Sector concentration. Quarter-over-quarter drift. Turnover ratios. The stuff that separates institutional analysis from a stock screener.

History

Full filing history

Every 13F-HR submission since 2013, parsed and normalized. Track a fund's conviction over 40+ quarters. Backtest what a whale portfolio would have returned. See when legendary investors started building positions before they were famous.

Signal engine

When the whales move together, the market listens.

Most whale trackers show you what one fund bought. WhaleLens shows you when multiple high-conviction funds independently reach the same conclusion — the strongest signal in institutional investing.

We call it Convergence Intelligence. Three top-performing funds quietly accumulating the same mid-cap position in the same quarter isn't a coincidence — it's a signal that the market hasn't priced in yet.

Example signal
Bridgewater + Soros + Tudor all bought the same mid-cap healthcare stock last quarter. First time in 6 quarters.
Example signal
Renaissance Technologies cut 40% of their tech exposure. Largest repositioning in 8 quarters.
CONVERGENCE SCORE
HIGH CONVICTION
NVDA — NVIDIA Corp
87/100
Bridgewater +412K shares
Two Sigma +198K shares
Millennium Mgmt +89K shares
Filed Q4 2025 · Detected Jan 18
Data infrastructure

Built on the SEC's own data. Nothing else.

We don't buy from Bloomberg. We don't scrape through middlemen. Every data point on WhaleLens comes directly from the SEC's EDGAR system — the authoritative, legally-required source.

13F-HR
Quarterly institutional holdings — all managers with $100M+ AUM
13D / 13G
Beneficial ownership reports — activist and passive investors
Form 4
Insider transaction filings — near-real-time executive moves
13F-HR/A
Amended filings — corrections, late disclosures, confidential treatments revealed
Data is 45 days delayed by SEC requirement — but we process it in hours, not weeks. That's the edge.
Institutional-grade intelligence, retail access

The smartest money in the world files in public.
Most investors never see it in time.

13F filings are designed to give the public insight into institutional investing. The problem isn't the law — it's that the data has no good home. WhaleLens fixes that.

Built by a team that spent years building quant infrastructure for hedge funds. We know what institutional data looks like. We know what it misses. We built the tool we always wanted.