Opened 16 Jan 2026 · Days active: 145
$RRC
Herzfeld Thomas J filed a Schedule 13D for RANGE RESOURCES CORP on 16 January 2026. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Herzfeld Thomas J
Active campaigns
24
Total position
—
Largest position
—
Avg stake size
—
Lifetime campaigns
54
Avg duration
—
Active campaigns
24 campaignsOpened 16 Jan 2026 · Days active: 145
$VVV
Herzfeld Thomas J filed a Schedule 13D for VALVOLINE INC on 16 January 2026. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 03 Nov 2025 · Days active: 219
$HLLY-WT
Herzfeld Thomas J filed a Schedule 13D for Holley Inc. on 16 January 2026. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 14 Feb 2025 · Days active: 481
$RKT
Herzfeld Thomas J filed a Schedule 13D for Rocket Companies, Inc. on 16 January 2026. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 03 Nov 2025 · Days active: 219
$TBI
Herzfeld Thomas J filed a Schedule 13D for TrueBlue, Inc. on 16 January 2026. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 09 May 2025 · Days active: 397
$PAL
Herzfeld Thomas J filed a Schedule 13D for Proficient Auto Logistics, Inc on 16 January 2026. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 14 Feb 2025 · Days active: 481
$NOMD
Herzfeld Thomas J filed a Schedule 13D for Nomad Foods Ltd on 16 January 2026. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 14 Feb 2025 · Days active: 481
$?
Herzfeld Thomas J filed a Schedule 13D for Vimeo, Inc. on 16 January 2026. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 12 May 2025 · Days active: 394
$KELYB
Herzfeld Thomas J filed a Schedule 13D for KELLY SERVICES INC on 16 January 2026. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 11 Aug 2025 · Days active: 303
$DENN
Herzfeld Thomas J filed a Schedule 13D for DENNY'S Corp on 16 January 2026. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 11 Aug 2025 · Days active: 303
$ARW
Herzfeld Thomas J filed a Schedule 13D for ARROW ELECTRONICS, INC. on 16 January 2026. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 03 Nov 2025 · Days active: 219
$AII
Herzfeld Thomas J filed a Schedule 13D for American Integrity Insurance Group, Inc. on 16 January 2026. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 14 Feb 2025 · Days active: 481
$EGHT
Herzfeld Thomas J filed a Schedule 13D for 8X8 INC /DE/ on 16 January 2026. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 12 May 2025 · Days active: 394
$FLEX
Herzfeld Thomas J filed a Schedule 13D for FLEX LTD. on 3 November 2025. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 14 Feb 2025 · Days active: 481
$REZI
Herzfeld Thomas J filed a Schedule 13D for RESIDEO TECHNOLOGIES, INC. on 3 November 2025. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 11 Aug 2025 · Days active: 303
$FAF
Herzfeld Thomas J filed a Schedule 13D for First American Financial Corp on 11 August 2025. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 11 Aug 2025 · Days active: 303
$HOG
Herzfeld Thomas J filed a Schedule 13D for HARLEY-DAVIDSON, INC. on 11 August 2025. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 09 May 2025 · Days active: 397
$MBC
Herzfeld Thomas J filed a Schedule 13D for MasterBrand, Inc. on 8 August 2025. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 12 May 2025 · Days active: 394
$IDCC
Herzfeld Thomas J filed a Schedule 13D for InterDigital, Inc. on 12 May 2025. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 14 Feb 2025 · Days active: 481
$USFD
Herzfeld Thomas J filed a Schedule 13D for US Foods Holding Corp. on 12 May 2025. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 14 Feb 2025 · Days active: 481
$RHI
Herzfeld Thomas J filed a Schedule 13D for ROBERT HALF INC. on 12 May 2025. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 14 Feb 2025 · Days active: 481
$SLMBP
Herzfeld Thomas J filed a Schedule 13D for SLM Corp on 12 May 2025. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 14 Feb 2025 · Days active: 481
$ALLE
Herzfeld Thomas J filed a Schedule 13D for Allegion plc on 14 February 2025. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Opened 14 Feb 2025 · Days active: 481
$SAIC
Herzfeld Thomas J filed a Schedule 13D for Science Applications International Corp on 14 February 2025. Schedule 13D indicates active intent.
Read the latest 13D filing on EDGAR →Past campaigns
Closed-campaign history pendingIn development
Closed-campaign history ships with campaign tracking.
Once campaign-tracking is online, this section will list every closed 13D / 13G position with its hold duration, peak stake, and outcome. The pipeline requires open-close pairing on amendments — not derivable from individual filings alone.
Convergence · Pattern Engine ships in v1.1
30-day windowIn development
Convergence participation lands with the Pattern Engine.
Once the Pattern Engine ships, this section will list every active convergence event Herzfeld is named in — the hedge funds and Congress members on the same name, the 30-day window, and the combined position size.
Context
13D vs 13GSchedule 13D and 13G filings are required when an investor crosses 5% beneficial ownership of a public company. A 13D indicates active intent — engagement with management, board representation, strategic proposals. A 13G is the passive equivalent, used by long-term holders who do not intend to influence corporate decisions. Conversion from 13G to 13D, or a 13D amendment, is itself a disclosure event and often signals an inflection point in the activist's posture.
Source data: SEC EDGAR · 13D and 13G filings · Last refreshed 12:09 UTC.