Comparable stake leader
BlackRock, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000100591.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
Ownership snapshot
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Quick read
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
14%
from 13D/G
|
$1,156,454,890
2,123,299 shares
|
— | 31 Mar 2026 |
| FIRST TRUST PORTFOLIOS LP |
13D/G
First Trust Portfolios L.P.
|
5.9%
|
$447,318,322
821,295 shares
|
$0 | 31 Mar 2026 |
| WELLINGTON MANAGEMENT GROUP LLP |
13D/G
|
4.6%
|
$93,531,966
629,167 shares
|
$0 | 31 Dec 2024 |
| Rainer H. Bosselmann |
3/4/5
Former CEO & Director
|
1.4%
|
$47,764,320
196,723 shares
mixed-class rows
|
— | 15 Sep 2025 |
| FIRST TRUST ADVISORS LP |
13F
Company
|
5.7%
|
$431,010,388
791,353 shares
|
— | 31 Mar 2026 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
4.4%
|
$332,726,140
610,899 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
4.2%
|
$319,963,357
587,466 shares
|
— | 31 Mar 2026 |
| STATE STREET CORP |
13F
Company
|
3.7%
|
$281,941,340
517,656 shares
|
— | 31 Mar 2026 |
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Net insider flow leans to selling over the last 12 months. Net value: -$144,356,603.
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 136,040 | $0 | $85,755,149 | -$85,755,149 |
| 3-6 | 0 | 54,915 | $0 | $19,854,754 | -$19,854,754 |
| 6-9 | 0 | 114,884 | $0 | $31,740,708 | -$31,740,708 |
| 9-12 | 0 | 30,445 | $0 | $7,005,991 | -$7,005,991 |
Reporting owners
Showing 1-16 of 16 reporting-owner rows connected to ARGAN INC. Open a relationship link for the CIK-to-CIK filing trail.
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| William F. Griffin Jr. | Director, GEMMA, NON-EXECUTIVE CHAIRMAN | $100,851,598 | -$32,173,000 | -24% | Mixed | 12 Jun 2026 |
| Rainer H. Bosselmann | Former CEO & Director | $47,764,320 | Mixed | 15 Sep 2025 | ||
| David H. Watson | PRESIDENT AND CEO, Director | $31,181,937 | -$20,846,604 | -40% | Mixed | 15 Jun 2026 |
| James W. Quinn | Director | $28,848,829 | -$8,256,565 | -22% | Mixed | 10 Jun 2026 |
| William F. Leimkuhler | Director | $21,283,352 | -$20,757,220 | -49% | Mixed | 10 Jun 2026 |
| Charles E. Collins IV | Chief Executive Officer, Gemma | $20,748,687 | -$20,647,254 | -50% | Mixed | 20 Apr 2026 |
| Cynthia A. Flanders | Director | $15,992,480 | -$13,625,561 | -46% | Mixed | 15 Jun 2026 |
| John R. Jeffrey Jr. | Director | $6,780,745 | -$11,201,878 | -62% | Mixed | 10 Jun 2026 |
| W. G. Champion Mitchell | Director | $6,573,535 | Mixed | 08 Oct 2024 | ||
| Richard H. Deily | Former CFO | $4,653,825 | -$389,403 | -7.7% | Mixed | 12 Sep 2025 |
| Peter W. Getsinger | Director | $4,191,079 | -$10,812,000 | -72% | Mixed | 15 Jun 2026 |
| Joshua S. Baugher | Chief Financial Officer | $1,343,455 | -$363,360 | -21% | Mixed | 16 Apr 2026 |
| Karen Sweeney | Director | $1,091,340 | -$103,058 | -8.6% | Mixed | 17 Jun 2026 |
| Mano S. Koilpillai | Former Director | $932,735 | Mixed | 30 Jul 2024 | ||
| Terrance C. Trebilcock | President, Gemma Power Sys. | $527,892 | Mixed | 16 Apr 2022 | ||
| Alexander Lisa Larroque | Director | $480,925 | -$220,703 | -31% | Median | 10 Jun 2026 |
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Karen A. Sweeney | AGX | Common Stock | Sale | -16.2% | $211,500 | $705.00 | -300 | 1,548 | 17 Jun 2026 | Direct |
| Peter W. Getsinger | AGX | Common Stock | Sale | -29.1% | $1,398,000 | $699.00 | -2,000 | 4,880 | 17 Jun 2026 | Direct |
| Peter W. Getsinger | AGX | Common Stock | Sale | -40.7% | $3,350,497 | $708.65 | -4,728 | 6,880 | 16 Jun 2026 | Direct |
| David H. Watson | AGX | Common Stock | Sale | -4.49% | $1,329,818 | $707.35 | -1,880 | 40,005 | 16 Jun 2026 | Direct |
| David H. Watson | AGX | Common Stock | Options Exercise | 4.7% | 1,880 | 41,885 | 16 Jun 2026 | Direct | ||
| David H. Watson | AGX | Option to Purchase Common Stock | Options Exercise | -54.8% | -3,333 | 2,748 | 16 Jun 2026 | Direct | ||
| Peter W. Getsinger | AGX | Common Stock | Options Exercise | 68.7% | 4,728 | 11,608 | 15 Jun 2026 | Direct | ||
| Peter W. Getsinger | AGX | Option to Purchase Common Stock | Options Exercise | -62.5% | -5,000 | 3,000 | 15 Jun 2026 | Direct | ||
| Cynthia A. Flanders | AGX | Common Stock | Sale | -10.1% | $1,729,741 | $666.31 | -2,596 | 23,144 | 15 Jun 2026 | Direct |
| David H. Watson | AGX | Common Stock | Sale | -20% | $6,507,641 | $651.22 | -9,993 | 40,005 | 15 Jun 2026 | Direct |
| William F. Griffin Jr. | AGX | Common Stock | Sale | -35.5% | $32,173,000 | $643.46 | -50,000 | 90,976 | 12 Jun 2026 | William F Griffin Jr GRAT II dtd Oct 6, 2025 |
| William F. Leimkuhler | AGX | Common Stock | Options Exercise | 1.46% | 533 | 37,028 | 10 Jun 2026 | Direct | ||
| William F. Leimkuhler | AGX | Time-Based Restricted Stock Units | Award | 22.7% | 189 | 1,023 | 10 Jun 2026 | Direct | ||
| William F. Leimkuhler | AGX | Time-Based Restricted Stock Units | Options Exercise | -38.9% | -530 | 834 | 10 Jun 2026 | Direct | ||
| John R. Jeffrey Jr. | AGX | Common Stock | Options Exercise | 26.6% | 533 | 2,533 | 10 Jun 2026 | Direct | ||
| John R. Jeffrey Jr. | AGX | Time-Based Restricted Stock Units | Award | 22.7% | 189 | 1,023 | 10 Jun 2026 | Direct | ||
| John R. Jeffrey Jr. | AGX | Time-Based Restricted Stock Units | Options Exercise | -38.9% | -530 | 834 | 10 Jun 2026 | Direct | ||
| James W. Quinn | AGX | Common Stock | Options Exercise | 3.54% | 533 | 15,580 | 10 Jun 2026 | Direct | ||
| James W. Quinn | AGX | Time-Based Restricted Stock Units | Award | 22.7% | 189 | 1,023 | 10 Jun 2026 | Direct | ||
| James W. Quinn | AGX | Time-Based Restricted Stock Units | Options Exercise | -38.9% | -530 | 834 | 10 Jun 2026 | Direct | ||
| Peter W. Getsinger | AGX | Common Stock | Options Exercise | 8.4% | 533 | 6,880 | 10 Jun 2026 | Direct | ||
| Peter W. Getsinger | AGX | Time-Based Restricted Stock Units | Award | 22.7% | 189 | 1,023 | 10 Jun 2026 | Direct | ||
| Peter W. Getsinger | AGX | Time-Based Restricted Stock Units | Options Exercise | -38.9% | -530 | 834 | 10 Jun 2026 | Direct | ||
| Alexander Lisa Larroque | AGX | Common Stock | Options Exercise | 152.3% | 533 | 883 | 10 Jun 2026 | Direct | ||
| Alexander Lisa Larroque | AGX | Time-Based Restricted Stock Units | Award | 189 | 189 | 10 Jun 2026 | Direct | |||
| Alexander Lisa Larroque | AGX | Time-Based Restricted Stock Units | Options Exercise | -100% | -530 | 0 | 10 Jun 2026 | Direct | ||
| Cynthia A. Flanders | AGX | Common Stock | Options Exercise | 2.11% | 533 | 25,740 | 10 Jun 2026 | Direct | ||
| Cynthia A. Flanders | AGX | Common Stock | Gift | -3.82% | -1,000 | 25,207 | 10 Jun 2026 | Direct | ||
| Cynthia A. Flanders | AGX | Time-Based Restricted Stock Units | Award | 22.7% | 189 | 1,023 | 10 Jun 2026 | Direct | ||
| Cynthia A. Flanders | AGX | Time-Based Restricted Stock Units | Options Exercise | -38.9% | -530 | 834 | 10 Jun 2026 | Direct | ||
| Karen A. Sweeney | AGX | Common Stock | Options Exercise | 40.5% | 533 | 1,848 | 10 Jun 2026 | Direct | ||
| Karen A. Sweeney | AGX | Time-Based Restricted Stock Unit | Award | 189 | 189 | 10 Jun 2026 | Direct | |||
| Karen A. Sweeney | AGX | Time-Based Restricted Stock Unit | Options Exercise | -100% | -530 | 0 | 10 Jun 2026 | Direct | ||
| Peter W. Getsinger | AGX | Common Stock | Gift | -7.3% | -500 | 6,347 | 29 Apr 2026 | Direct | ||
| Peter W. Getsinger | AGX | Common Stock | Sale | -30.5% | $1,885,080 | $628.36 | -3,000 | 6,847 | 29 Apr 2026 | Direct |
| Alexander Lisa Larroque | AGX | Common Stock | Sale | -50% | $220,703 | $630.58 | -350 | 350 | 29 Apr 2026 | Direct |
| William F. Leimkuhler | AGX | Common Stock | Sale | -44.4% | $247,444 | $618.61 | -400 | 500 | 28 Apr 2026 | Self as Trustee for Elizabeth K Leimkuhler Trust |
| William F. Leimkuhler | AGX | Common Stock | Sale | -44.4% | $248,456 | $621.14 | -400 | 500 | 28 Apr 2026 | Self as Trustee for Emily K Leimkuhler Trust |
| William F. Leimkuhler | AGX | Common Stock | Sale | -12% | $3,087,050 | $617.41 | -5,000 | 36,495 | 28 Apr 2026 | Direct |
| John R. Jeffrey Jr. | AGX | Common Stock | Sale | -57.4% | $1,793,738 | $664.84 | -2,698 | 2,000 | 27 Apr 2026 | Direct |
| Charles E. Collins IV | AGX | Common Stock | Sale | -26.7% | $6,879,979 | $621.61 | -11,068 | 30,320 | 21 Apr 2026 | Direct |
| Charles E. Collins IV | AGX | Common Stock | Options Exercise | 36.5% | 11,068 | 41,388 | 21 Apr 2026 | Direct | ||
| Charles E. Collins IV | AGX | Option to Purchase Common Stock | Options Exercise | -88.1% | -11,068 | 1,499 | 21 Apr 2026 | Direct | ||
| John R. Jeffrey Jr. | AGX | Common Stock | Options Exercise | 4,698 | 4,698 | 21 Apr 2026 | Direct | |||
| John R. Jeffrey Jr. | AGX | Common Stock | Sale | -100% | $2,237,594 | $615.40 | -3,636 | 0 | 21 Apr 2026 | Direct |
| John R. Jeffrey Jr. | AGX | Option to Purchase Common Stock | Options Exercise | -43.5% | -5,000 | 6,500 | 21 Apr 2026 | Direct | ||
| Charles E. Collins IV | AGX | Common Stock | Sale | -7.62% | $1,525,000 | $610.00 | -2,500 | 30,320 | 20 Apr 2026 | Direct |
| Charles E. Collins IV | AGX | Common Stock | Options Exercise | 8.25% | 2,500 | 32,820 | 20 Apr 2026 | Direct | ||
| Charles E. Collins IV | AGX | Option to Purchase Common Stock | Options Exercise | -16.6% | -2,500 | 12,567 | 20 Apr 2026 | Direct | ||
| Charles E. Collins IV | AGX | Common Stock | Options Exercise | 32.3% | 7,406 | 30,320 | 17 Apr 2026 | Direct |