The Deep Dive
We reviewed 491 institutional signals this month. Here are the ones that matter. ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏
| THE FILING CABINET | MONTHLY · MAR 2026 |
| THE MONTHLY INSTITUTIONAL READ. THE DEEP
DIVE. | We reviewed 491 institutional signals this month. Here are the ones that matter. | | 466 INSTITUTIONAL | 9 WORKFORCE |
| | ▸ THE ONE-LINER Bridgewater initiated a 7,005% position in Alliant Energy — and BlackRock simultaneously exited 61% of its largest pharma holding. |
| | 01 — INSTITUTIONAL HOLDINGS | 13-F |
| Financials — 52 insiders active across the sector AFL, ALL, BAC, BLK, BX +2 more |
| | $LNT Alliant Energy Holdings change · Q1 2026 | ▲ 7005% |
| | $NVDA NVIDIA Corporation Holdings change · Q1 2026 | ▲ 340% |
| | $ABBV AbbVie Inc. Holdings change · Q1 2026 | ▼ 61% |
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| | 02 — INSIDER CLUSTERS | BY SECTOR |
| SECTOR Financials 52 INSIDERS AFL, ALL, BAC, BLK, BX +2 |
| SECTOR Information Technology 38 INSIDERS AKAM, AMD, ANET, AVGO, MSFT |
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| | 03 — GOVERNANCE | PROXY FILINGS |
| | PROXY Apple Inc. Executive Compensation · Apr 2026 | AAPL |
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| | 04 — WORKFORCE | WARN NOTICES |
| | LAYOFF Meta Platforms Inc. Layoff · 420 employees affected | |
| | LAYOFF The Vons Companies Facility closure · 65 employees affected | |
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| | | PATENT NVIDIA Corporation Semiconductor / AI Hardware · Mar 2026 | NVDA |
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| THE FILING CABINET Not financial advice. Not even close. |
© 2026 THE FILING CABINET |
