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Security record · archived quarter

MASS

name pending profile ingest

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
13Tracked holders
+1Δ holders
10.10MShares held
$71.99MReported value
+1New positions
−0Exits
Strongly Rising 2 quarters of rising tracked shares ●●○○○○ How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth +8.3% · share flow +26.5% · net new positions +7.7% · formula
Broad accumulation: rising shares across more holders

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 52 -2 10.35M $89.93M +2 −5
Q1 2026 57 -4 10.59M $64.79M n/a −4
Q4 2025 61 +1 11.56M $60.65M +2 −1
Q3 2025 16 0 9.68M $84.83M n/a n/a
Q2 2025 13 +1 10.10M $71.99M +1 n/a
Q1 2025 9 0 4.75M $21.27M +2 −2
Q4 2024 9 0 4.58M $10.07M +2 −2
Q3 2024 8 -1 4.69M $16.27M n/a −1
Q2 2024 9 n/a 5.68M $29.25M n/a n/a
Holder count
Who holds it · Q2 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 ARK Investment Management ✦ 2.65M -8.7% $18.88M 0.1% ▼ Trim 5 SEC ↗
2 State Street Global Advisors ✦ (passive) 2.29M +388.9% $16.31M 0.0% ▲ Add 3 SEC ↗
3 BlackRock ✦ (passive) 1.79M n/a $12.77M 0.0% n/c 1 SEC ↗ ×6
4 The Vanguard Group ✦ (passive) 1.43M n/a $10.20M 0.0% n/c 1 SEC ↗ ×3
5 Geode Capital Management ✦ (passive) 658.60K +11.7% $4.70M 0.0% ▲ Add 5 SEC ↗ ×2
6 Marshall Wace ✦ 648.80K +359.4% $4.63M 0.0% ▲ Add 3 SEC ↗ ×2
7 D. E. Shaw & Co. ✦ 186.22K -45.2% $1.33M 0.0% ▼ Trim 5 SEC ↗
8 Renaissance Technologies ✦ 174.10K +20.4% $1.24M 0.0% ▲ Add 5 SEC ↗
9 AQR Capital Management ✦ 94.99K +16.5% $677,293 0.0% ▲ Add 2 SEC ↗ ×4
10 Millennium Management ✦ 82.70K New $589,644 0.0% New 1 SEC ↗
11 Two Sigma Investments ✦ 70.99K +1.5% $506,187 0.0% ▲ Add 3 SEC ↗
12 T. Rowe Price ✦ 12.41K 0.0% $89,000 0.0% Held 2 SEC ↗
13 Fidelity (FMR) ✦ 10.78K n/a $76,841 0.0% n/c 1 SEC ↗ ×2

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

New buyers

Millennium Management $589,644 0.0%

Exited

No tracked exits this quarter.

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 111 holders, 27.94M shares, $169.30M 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.

Insider transactions

Open-market purchases (P)

No open-market insider purchases in our coverage window.

Open-market sales (S)

Oct 07 Brown Christopher D.

Director · 30.00K sh · $356,700

Oct 06 Griffith Joseph H. IV

Officer · 5.00K sh · $65,150

Sep 29 AWM Investment Company, Inc.

10% owner · 18.00K sh · $207,322

Sep 24 AWM Investment Company, Inc.

10% owner · 24.00K sh · $272,626

Sep 23 AWM Investment Company, Inc.

10% owner · 1.00K sh · $11,250

Sep 17 Kenneweg John

Officer · 5.26K sh · $53,727

Sep 16 Kenneweg John

Officer · 21.40K sh · $216,344

Sep 15 Kenneweg John

Officer · 1.00K sh · $10,000

Sep 02 Brown Christopher D.

Director · 30.00K sh · $317,400

Aug 25 Griffith Joseph H. IV

Officer · 11.46K sh · $125,476

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Beneficial ownership
Aug 14 SC 13G/A: AWM Investment Company, Inc.

View original SEC filing ↗

Aug 14 SC 13G/A: ARK Investment Management LLC

View original SEC filing ↗

Aug 14 SC 13G/A: ARCH Venture Fund VII, L.P.

View original SEC filing ↗

Jul 27 SC 13G: BlackRock, Inc.

View original SEC filing ↗

Jun 05 SC 13G/A: ARK Investment Management LLC

View original SEC filing ↗

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: Q2 2025 · Methodology · Get this via the API