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Built from publicly disclosed institutional and insider activity. Informational purposes only - not investment advice.OpenStocks · v0.1
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Asset Manager · CIK 0000902219

Wellington Management

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Wellington Management, an asset manager overseeing $570.60B in disclosed equity holdings (SEC CIK 0000902219). The latest portfolio (2025Q4) discloses 1874 positions across 11 sectors, with the largest positions in NVDA, MSFT and AAPL. On a mark-to-market basis the tracked portfolio has returned 132.7% since 2016Q1. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.

Track Wellington's filingsView holdings↓
Portfolio
$570.60B
Positions
1874
Quarter
2025Q4
Filings tracked
40
Since filing+132.7%Full performance →
Quarter
2025Q42025Q32025Q22025Q12024Q42024Q32024Q22024Q12023Q42023Q32023Q22023Q1

Not enough filing history to compute mark-to-market returns for Wellington Management.

We need at least one year of portfolio coverage with priceable positions.

Performance overview

We mark Wellington Management's disclosed portfolio to current market prices and compare its growth against the S&P 500 (SPY). Wellington’s portfolio is 132.7% since 2016Q1.

Portfolio growth vs SPY
Rebased to 100 at 2021Q2 · through 2025Q4
Wellington Management
+52.9%
SPY
+69.5%
Alpha
-16.7pp
781031281521772021Q22023Q32025Q4
Portfolio line is the GIPS-compliant time-weighted return chain-linked across the manager's quarterly 13F filings — unaffected by capital flows. Quarters with insufficient held-through coverage are skipped, which can briefly flatten the line.
Capital flow per quarter
BuysSellsNet
+$563.79B+$281.89B$0-$281.89B-$563.79B'20Q2'20Q3'20Q4'21Q1'21Q2'21Q3'21Q4'22Q1'22Q2'22Q3'22Q4'23Q1'23Q2'23Q3'23Q4'24Q1
Latest · 2024Q1
+$563.73B
Lifetime buys
$1.08T
Lifetime sells
$1.09T
Portfolio over time
AUMPositions
$0$206.34B$412.69B$625.28B216713'20Q2'22Q1'24Q1
QoQ AUM
+93210.5%
16Q lifetime AUM
+25.7%
QoQ positions
+1862
16Q lifetime positions
+41
Position concentration
1875 positions
Top 1
4%
of book
  • Top 14%$24.74BMSFT
  • Top 2-59%$49.56BAMZN, UNH, MRK
  • Top 6-108%$46.30BGOOGL, AAPL, META
  • Top 11-209%$49.58BDHR, PG, MA
  • Rest70%$394.25BRest of port