Trade Filings
Managers Stocks Filings Superinvestors
Signals Institutional Buying Institutional Selling Insider Activity 13D & 13G Watch Sector Rotation
Tools Stock Screener Manager Screener Compare Managers Consensus Baskets All Research Tools Data API
Learn & AI Learn Ask the Data AI Agents
News ★ Saved
About About us Methodology Contact Disclaimer
Reader
DATA PLANS

Historical data downloads — coming with accounts.

API GATEWAY

Free read-only JSON access to the site's cached data.

Dark mode

🧭 Guided View
New to markets — prices, yields, YTD, market cap? We explain every term as you browse, in plain English. Same data, with the help built in.

⚡ Expert View
You already know the market. Just the data — clean, fast and compact, with no extra explanations. This is the default view.

Interface language
Security record · archived quarter

ATYR

name pending profile ingest

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
9Tracked holders
+1Δ holders
7.51MShares held
$22.68MReported value
+2New positions
−1Exits
Rising How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth +12.5% · share flow -6.7% · net new positions +11.1%formula
Ownership fragmentation — more holders, smaller aggregate stake

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 46 -14 32.19M $19.21M +6 −20
Q1 2026 62 +13 52.39M $40.86M +13
Q4 2025 49 -2 49.36M $38.65M +1 −3
Q3 2025 13 -4 37.31M $26.91M −4
Q2 2025 14 +2 31.17M $158.03M +2
Q1 2025 9 +1 7.51M $22.68M +2 −1
Q4 2024 8 +1 8.05M $29.15M +2 −1
Q3 2024 6 +1 4.05M $7.12M +1
Q2 2024 5 4.91M $7.66M
Holder count
Who holds it · Q1 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 Point72 Asset Management 2.84M -41.8% $8.59M 0.0% ▼ Trim 2 SEC ↗
2 Millennium Management 1.60M +334.5% $4.83M 0.0% ▲ Add 4 SEC ↗
3 Geode Capital Management (passive) 927.80K +4.1% $2.80M 0.0% ▲ Add 4 SEC ↗
4 Geode Capital Management (passive) 927.80K +4.1% $2.80M 0.0% ▲ Add 4 SEC ↗
5 Marshall Wace 838.45K New $2.53M 0.0% New 1 SEC ↗
6 Marshall Wace 838.45K New $2.53M 0.0% New 1 SEC ↗
7 Renaissance Technologies 479.95K -16.4% $1.45M 0.0% ▼ Trim 4 SEC ↗
8 State Street Global Advisors (passive) 367.31K +22.2% $1.11M 0.0% ▲ Add 2 SEC ↗
9 Citadel Advisors 261.01K +2011.5% $788,241 0.0% ▲ Add 4 SEC ↗
10 Wellington Management 168.74K New $509,601 0.0% New 1 SEC ↗
11 Wellington Management 168.74K New $509,601 0.0% New 1 SEC ↗
12 Two Sigma Investments 22.24K +2.8% $67,162 0.0% ▲ Add 2 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

Marshall Wace $2.53M 0.0%
Marshall Wace $2.53M 0.0%
Wellington Management $509,601 0.0%
Wellington Management $509,601 0.0%

Exited

Adage Capital Partners $3.62M was 0.0%

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 110 holders, 56.59M shares, $42.52M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q1 2025 · Methodology · Get this via the API