Fee petition mechanics · Updated June 2026
California Cartwright Act antitrust attorney fee petition mechanics: date of last overt act in antitrust conspiracy as primary Welch anchor, Bus. & Prof. Code § 16750(a) mandatory treble damages and attorney fees
California Cartwright Act civil enforcement (Cal. Bus. & Prof. Code §§ 16700–16770) solos billing hourly on mandatory attorney fees — in actions where the primary Welch temporal anchor is the DATE OF THE LAST OVERT ACT IN THE ANTITRUST CONSPIRACY (the date of the last act in furtherance of the price-fixing conspiracy, bid-rigging scheme, market allocation agreement, or group boycott — the most recent anticompetitive communication, bid submission, price adjustment, or territorial division act among the conspiring competitors; the Date of Last Overt Act is the ONLY primary anchor in the fee-petition-mechanics series in a COVERT MARKET COMPETITION DATE — not a court filing, not a government-issued administrative complaint, not a government-authored notice, not an employer-authored document, not a lienholder-authored statutory notice, not a private services contract, not a denial/adverse-action date, not a property damage date, and not a consumer-submitted record request date; it is a date embedded in covert competitor communications — private telephone calls, encrypted messages, in-person meeting agreements, simultaneous bid submissions — that was not accessible to any outsider at the time of the act, exists only in the competitors' own internal records at the time the conspiracy operated, and is established only through civil discovery or through documents produced in response to a government Civil Investigative Demand (CID); under § 16750.1 the four-year statute of limitations begins to run from the last overt act, making the identification of this date outcome-determinative for the viability of the Cartwright Act claim; § 16720: every contract, combination, or conspiracy in restraint of trade or commerce in this state is unlawful — per se violations include price-fixing, bid-rigging, market allocation, and group boycotts [North Am. Soccer League v. National Football League (9th Cir. 1982) 670 F.2d 1249]; § 16726: attempts to monopolize or monopolize any part of trade or commerce in this state; § 16727: price-fixing — any agreement between competitors on the price at which each will sell or buy; § 16730: price discrimination injuring competition among purchasers; § 16750(a): 'Any person who is injured in his or her business or property by reason of anything forbidden or declared unlawful by this chapter may sue therefor in a court of the state and shall recover three times the damages sustained by him or her and shall be entitled to recover the costs of the suit, including a reasonable attorney's fee as determined by the court' — SHALL RECOVER mandatory treble damages and SHALL BE ENTITLED TO RECOVER mandatory attorney fees; § 16750.1 four-year statute of limitations from last overt act date; concurrent calendars: [1] FTC Civil Investigative Demand (CID) investigation calendar — FTC may issue CIDs to companies under antitrust investigation; FTC investigation and public disclosure of investigation findings on the FTC's own schedule entirely outside the private plaintiff's scheduling control; [2] DOJ Antitrust Division Civil Investigative Demand calendar — DOJ may issue DOJ CIDs and negotiate consent decrees; DOJ investigation calendar entirely outside private plaintiff's control; [3] California AG antitrust enforcement calendar — AG may bring Cartwright Act action under Gov. Code § 11182 parens patriae; AG investigation calendar; [4] MDL Panel transfer calendar if federal Sherman Act concurrent action: the JPML may transfer related federal antitrust cases to a single federal district for coordinated proceedings on the MDL Panel's own schedule; [5] defendant's plea calendar if DOJ concurrent criminal prosecution: federal criminal antitrust charges [15 U.S.C. § 1 — Sherman Act criminal] may precede or parallel the Cartwright Act civil action) — generate three billing gaps driven by last overt act identification and § 16750.1 four-year statute of limitations audit advisory calls on the covert market competition calendar, the concurrent FTC CID and DOJ CID and AG antitrust and MDL Panel calendars, and the § 16750(a) mandatory treble damages and attorney fee petition calendar: last overt act identification and § 16720 conspiracy analysis and § 16750.1 limitations computation advisory calls (7 clients × 2 calls × 42 min × 55% untracked ≈ 5.39 hrs = $1,617–$2,695/year at $300–$500/hr), FTC CID investigation monitoring and DOJ CID concurrent and AG antitrust concurrent and MDL Panel transfer concurrent advisory calls (6 clients × 3 calls × 44 min × 55% ≈ 7.26 hrs = $2,178–$3,630/year), and § 16750(a) mandatory treble damages computation and attorney fee petition and Ketchum multiplier advisory calls (5 clients × 2 calls × 44 min × 55% ≈ 4.03 hrs = $1,210–$2,017/year). For a solo California Cartwright Act antitrust plaintiff practice, the annual billing gap from advisory call underlogging is $5,005–$8,342.
TL;DR
ClaimHour captures every last overt act identification and § 16720 conspiracy analysis and § 16750.1 limitations audit advisory call that starts the § 16750(a) fee documentation period, every concurrent FTC CID investigation and DOJ CID and AG antitrust and MDL Panel transfer advisory call on external government calendars outside the private plaintiff's scheduling control, and every § 16750(a) mandatory treble damages computation and attorney fee petition and Ketchum multiplier advisory call on the post-judgment calendar — passively, no timer, no audio, no call contents. $29–$59/mo. No PMS required.
Last overt act identification and § 16720 conspiracy analysis and § 16750.1 limitations computation: calls on the covert market competition calendar
The DATE OF THE LAST OVERT ACT IN THE ANTITRUST CONSPIRACY — the date of the last act in furtherance of the price-fixing, bid-rigging, market allocation, or group boycott — is the primary Welch temporal anchor for § 16750(a) attorney fee billing documentation. This date is the ONLY primary anchor in the fee-petition-mechanics series in a COVERT MARKET COMPETITION DATE. It is the Hensley lodestar start for three reasons: (1) § 16750(a) mandatory treble damages and mandatory attorney fees run from the injury caused by the anticompetitive conduct — and all hours from the initial conspiracy identification through the last overt act analysis are compensable; (2) all advisory calls on § 16720 conspiracy structure identification, § 16750.1 four-year statute of limitations computation, and per-se vs. rule-of-reason analysis begin when the plaintiff retains Cartwright Act civil counsel; (3) the FTC CID calendar, DOJ CID calendar, and AG antitrust calendar begin on those agencies' own schedules, typically triggered by government enforcement actions predating or concurrent with the private civil action — calendars entirely outside the private plaintiff's attorney's scheduling control.
Three initial advisory call types generate untracked billing from the date of the last overt act: (1) Last overt act identification and § 16720 per-se violation classification and § 16750.1 statute of limitations computation advisory — arrives when the plaintiff retains Cartwright Act civil counsel (last overt act analysis: the Date of Last Overt Act in an antitrust conspiracy is established through: [a] bid submission records — in bid-rigging cases, the most recent rigged bid submission timestamp is the last overt act [the losing conspirator's deliberately high bid submitted to allow the designated winner to prevail]; [b] price adjustment records — in price-fixing cases, the most recent coordinated price increase implemented by all conspirators is the last overt act; [c] customer allocation records — in market allocation cases, the most recent customer referral between conspirators ('I'll take the customer north of the highway, you take the customer south') is the last overt act; [d] communications records — in group boycott cases, the most recent communication to a third party refusing to deal with the target is the last overt act; § 16750.1 four-year limitations computation: the limitations period begins from the last overt act date — not from the discovery date (unlike fraud claims); however, fraudulent concealment of the conspiracy tolls the statute of limitations: if the conspirators actively concealed the conspiracy through deceptive pricing communications, false bid justifications, or express agreement to maintain secrecy, the statute is tolled until the plaintiff discovered or reasonably should have discovered the conspiracy; § 16720 per-se analysis: price-fixing [§ 16720 + § 16727], bid-rigging [§ 16720], market allocation [§ 16720], group boycotts [§ 16720] are per-se illegal — no market power showing required; rule-of-reason analysis: vertical restraints and some exclusive dealing arrangements require rule-of-reason analysis under Leegin Creative Leather Products, Inc. v. PSKS, Inc. 551 U.S. 877 (2007); 42–48 min per call); (2) Competitor identification and conspiracy scope and single-entity defense analysis advisory — arrives during case-preparation (conspiracy structure analysis: § 16720 requires an agreement between two or more legally independent entities — the 'single entity' defense: if the alleged conspirators are parent and wholly owned subsidiary, they are a single entity incapable of conspiring under American Needle, Inc. v. NFL 560 U.S. 183 (2010); affiliate co-conspirator analysis: if the conspiring entities are joint venture partners or licensee-licensor, single-entity defense may apply; geographic market definition: Cartwright Act covers 'trade or commerce in this state' — the relevant market must include California; market power analysis: for non-per-se claims, the relevant product and geographic market must be defined; expert economic analysis retained at this stage generates hours compensable in the § 16750(a) lodestar from the last overt act date; § 16750(a) treble damages computation: single damages = lost profits from anticompetitive overcharge [price-fixing: the overcharge above competitive price × quantity purchased]; treble damages = 3 × single damages; expert economic analysis of competitive price (but-for price absent conspiracy) is required; 42–48 min per call); (3) Fraudulent concealment tolling analysis and discovery-accrual advisory — arrives when the conspiracy was actively concealed (fraudulent concealment tolling: if the conspirators maintained secrecy by [a] disguising price coordination as independent parallel pricing; [b] using encrypted or off-book communications; [c] falsely representing that bid prices were independently determined; [d] explicitly instructing co-conspirators to deny the existence of any coordination — then fraudulent concealment tolls the § 16750.1 four-year limitations period from the date of active concealment until the date the plaintiff discovered or through the exercise of reasonable diligence should have discovered the conspiracy; FTC/DOJ public disclosure of investigation as tolling-end event: if the first public disclosure of the antitrust conspiracy was a government press release announcing a consent decree or criminal plea — the plaintiff's limitations period began running from the date of the FTC/DOJ public announcement, not from the last overt act date; § 16750.1 equitable estoppel analysis if defendant affirmatively misled plaintiff; 42–48 min per call). At 55% untracked: 7 clients × 2 calls × 42 min × 55% = 323.4 min / 60 = 5.39 hours = $1,617–$2,695/year at $300–$500/hr.
FTC CID investigation and DOJ CID concurrent and AG antitrust concurrent and MDL Panel transfer concurrent advisory: calls on the external government calendars
A California Cartwright Act civil action generates concurrent external calendar obligations across multiple government enforcement bodies operating entirely outside the private plaintiff attorney's schedule — the FTC Civil Investigative Demand (CID) investigation calendar, the DOJ Antitrust Division CID and consent decree calendar, the California AG antitrust enforcement calendar, and (if concurrent federal Sherman Act claims) the JPML MDL Panel transfer calendar. Each creates advisory calls triggered by their own procedural milestones on those bodies' own calendars. Ketchum v. Moses 24 Cal.4th 1122 (2001). PLCM Group Inc. v. Drexler 22 Cal.4th 1084 (2000). Hensley v. Eckerhart 461 U.S. 424 (1983) lodestar from date of last overt act. Missouri v. Jenkins 491 U.S. 274 (1989) fees-on-fees.
Three concurrent external calendar advisory call types generate untracked billing: (1) FTC Civil Investigative Demand (CID) investigation and DOJ Antitrust Division CID concurrent advisory — arrives when government antitrust investigation becomes known (FTC CID investigation: the FTC may issue a Civil Investigative Demand to compel document production, written reports, and depositions from companies under investigation under 15 U.S.C. § 57b-1; the FTC CID is issued on the FTC's own investigation schedule entirely outside the private plaintiff's scheduling control; FTC CID document production may produce records establishing the date of the last overt act — the FTC's investigation record may be the only extrinsic source for the private plaintiff to establish the last overt act date without its own expensive civil discovery; DOJ Antitrust Division CID: the DOJ Antitrust Division issues CIDs under 15 U.S.C. § 1312; DOJ may negotiate consent decrees with antitrust violators — consent decree terms may include structural remedies [divestiture, licensing requirements] that affect the private plaintiff's damages computation; DOJ criminal prosecution: if the antitrust conspiracy also constitutes criminal price-fixing [15 U.S.C. § 1 Sherman Act criminal — imprisonment up to 10 years and fines up to $100 million per corporation], the DOJ criminal prosecution calendar runs entirely outside the private plaintiff's scheduling control; criminal guilty pleas or nolo contendere pleas may be admissible in the Cartwright Act civil action under Cal. Evid. Code § 1300 as admissions; private plaintiff's Cartwright Act action may be tolled during DOJ criminal prosecution by agreement or court order; 44–50 min per call); (2) California AG antitrust enforcement concurrent calendar advisory — arrives when AG pursues Cartwright Act enforcement (CA AG Cartwright Act enforcement: the California AG may bring a Cartwright Act action under Gov. Code § 11182 parens patriae on behalf of California consumers injured by the anticompetitive conduct; AG Cartwright Act action runs on the AG's own investigation and enforcement calendar entirely outside the private plaintiff's scheduling control; the AG may have evidence of the antitrust conspiracy — CID responses, cooperating witness agreements, undercover recordings — that is subject to protective order in the AG enforcement action; private plaintiff's Cartwright Act action may be coordinated with or stayed pending the AG action; AG consent decree: if the AG reaches a consent decree with the antitrust defendant, the decree may include a cy pres fund benefiting injured California consumers — the private plaintiff's claim may be mooted or supplemented by the AG consent decree; California Antitrust Reform Act [Bus. & Prof. Code § 16750 et seq.] provides that the AG and the private plaintiff may both maintain independent actions; 44–50 min per call); (3) JPML MDL Panel transfer concurrent advisory — arrives when concurrent federal Sherman Act claims create MDL risk (MDL concurrent advisory: if the antitrust conspiracy also violates the federal Sherman Act [15 U.S.C. § 1 — horizontal price-fixing, bid-rigging, market allocation], and if multiple plaintiffs across multiple federal districts have filed federal Sherman Act civil actions, the JPML (Judicial Panel on Multidistrict Litigation) may consolidate all federal cases in a single transferee district under 28 U.S.C. § 1407; the JPML transfer order is issued on the Panel's own schedule — typically within 3–6 months after the motion to transfer is filed; MDL transfer affects the solo California Cartwright Act attorney because: [a] if the private plaintiff had also filed a concurrent federal Sherman Act claim [15 U.S.C. § 15: treble damages and mandatory attorney fees identical to Cartwright Act], the federal Sherman Act claim may be transferred to the MDL while the Cartwright Act California state claim remains in California Superior Court; [b] MDL discovery and deposition records may be shared with the California state Cartwright Act proceeding — the MDL's document production may establish the Date of Last Overt Act; [c] MDL settlement proceedings may conflict with or moot the Cartwright Act state claim; Hensley task-level lodestar segregation between California Cartwright Act component [§ 16750(a) — Ketchum multiplier eligible] and Sherman Act federal component [15 U.S.C. § 15 — Dague no-multiplier; City of Burlington v. Dague 505 U.S. 557 (1992)]; 44–50 min per call). At 55% untracked: 6 clients × 3 calls × 44 min × 55% = 435.6 min / 60 = 7.26 hours = $2,178–$3,630/year at $300–$500/hr.
§ 16750(a) mandatory treble damages and attorney fee petition advisory: calls on the post-judgment calendar
Cal. Bus. & Prof. Code § 16750(a) provides mandatory treble damages and mandatory attorney fees to the private plaintiff who prevails in a Cartwright Act action: 'Any person who is injured in his or her business or property by reason of anything forbidden or declared unlawful by this chapter may sue therefor in a court of the state and shall recover three times the damages sustained by him or her and shall be entitled to recover the costs of the suit, including a reasonable attorney's fee as determined by the court' — SHALL RECOVER and SHALL BE ENTITLED TO RECOVER are among the most unambiguous mandatory fee provisions in California law. The § 16750(a) fee petition requires a Hensley lodestar from the date of the last overt act in the antitrust conspiracy through all phases — conspiracy identification, § 16720 per-se violation analysis, § 16750.1 limitations computation, FTC/DOJ CID monitoring, AG concurrent monitoring, MDL Panel concurrent monitoring, civil expert retention, antitrust discovery (often including CID production), and trial. The Ketchum multiplier argument is available in Cartwright Act cases where: (1) the last overt act date was covert at the time of engagement — established only through civil discovery of the conspirators' own internal records; (2) the FTC/DOJ investigation outcome was uncertain at engagement — whether the government would produce documents supporting the private case was unknown; (3) the MDL consolidation risk was uncertain — whether the federal claims would be transferred to an MDL transferee court affected the case management calendar; (4) the treble damages computation required expert economic analysis of the competitive price (but-for price) — outcome uncertain at engagement. Ketchum v. Moses 24 Cal.4th 1122 (2001). PLCM Group Inc. v. Drexler 22 Cal.4th 1084 (2000). Hensley v. Eckerhart 461 U.S. 424 (1983). Missouri v. Jenkins 491 U.S. 274 (1989) fees-on-fees.
Two § 16750(a) post-judgment advisory call types generate untracked billing: (1) § 16750(a) treble damages computation and overcharge analysis advisory — arrives at civil judgment (§ 16750(a) treble damages: single damages = the plaintiff's actual injury from the anticompetitive conduct [overcharge above the but-for competitive price × quantity purchased during the conspiracy period]; treble damages = 3 × single damages — mandatory, no court discretion to reduce the multiplier below 3 [unlike Sherman Act 15 U.S.C. § 15, which uses the identical 'shall recover three times' mandatory language]; damages computation expert advisory: economic expert computes the competitive price by reference to [a] pre-conspiracy pricing in the relevant market; [b] pricing in comparable markets not affected by the conspiracy; [c] cost-plus pricing modeling; indirect purchaser standing: Cal. Bus. & Prof. Code § 16750(b) expressly allows INDIRECT PURCHASERS to sue for Cartwright Act violations — California rejects the Illinois Brick doctrine [Illinois Brick Co. v. Illinois 431 U.S. 720 (1977)] which bars indirect purchaser federal Sherman Act treble damages actions; a California indirect purchaser (retailer who purchased from a price-fixed wholesaler, or consumer who purchased from a price-fixed retailer) has standing for Cartwright Act treble damages — creating a potentially enormous plaintiff class; California v. ARC America Corp. 490 U.S. 93 (1989) — federal Sherman Act does not preempt California indirect purchaser Cartwright Act claims; 44–50 min per call); (2) § 16750(a) mandatory attorney fee petition and Ketchum multiplier advisory — arrives at fee petition filing (Hensley lodestar components: [a] last overt act identification and § 16720 per-se violation analysis hours; [b] § 16750.1 limitations computation and fraudulent concealment tolling analysis hours; [c] competitor identification, conspiracy scope, single-entity defense analysis hours; [d] economic expert retention and expert advisory hours from last overt act date; [e] FTC CID investigation monitoring hours; [f] DOJ CID and consent decree monitoring hours; [g] AG antitrust enforcement concurrent monitoring hours; [h] MDL Panel concurrent monitoring hours [with Hensley segregation — Ketchum multiplier for Cartwright Act California component; Dague no-multiplier for Sherman Act federal component if any]; [i] civil discovery and trial hours; Ketchum five-factor multiplier: [a] the last overt act date was covert at engagement — established only through civil discovery of defendants' internal records; [b] FTC/DOJ investigation document production outcome uncertain at engagement; [c] MDL consolidation risk for concurrent federal claims uncertain at engagement; [d] economic expert's but-for price computation was subject to defendant's competing expert rebuttal — outcome uncertain; [e] indirect purchaser class damages computation [§ 16750(b)] created complex allocation issues across the distribution chain; Missouri v. Jenkins 491 U.S. 274 (1989) fees-on-fees; PLCM Group Inc. v. Drexler 22 Cal.4th 1084 (2000) prevailing market rate; 44–50 min per call). At 55% untracked: 5 clients × 2 calls × 44 min × 55% = 242 min / 60 = 4.03 hours = $1,210–$2,017/year at $300–$500/hr.
How ClaimHour fits California Cartwright Act antitrust practice
California Cartwright Act antitrust solos billing hourly on Cal. Bus. & Prof. Code § 16750(a) mandatory treble damages and attorney fees — with last overt act identification and § 16720 conspiracy analysis and § 16750.1 four-year limitations computation advisory calls arriving when plaintiffs retain Cartwright Act civil counsel (Date of Last Overt Act = primary Welch anchor; the ONLY primary anchor in the fee-petition-mechanics series in a COVERT MARKET COMPETITION DATE; the last overt act date is embedded in the defendants' own private communications — bid submission records, price adjustment records, customer allocation records, meeting notes — accessible only through civil discovery or government CID document production; not known to the plaintiff at the time of retaining counsel), FTC CID investigation monitoring advisory calls on the FTC's own investigation calendar entirely outside the private plaintiff's scheduling control, DOJ CID and consent decree concurrent advisory calls, AG antitrust enforcement concurrent advisory calls, MDL Panel transfer concurrent advisory calls (for concurrent federal Sherman Act claims), and § 16750(a) mandatory treble damages computation and attorney fee petition and Ketchum multiplier advisory calls arriving at civil judgment — and if your § 16750(a) lodestar documentation must satisfy the Hensley contemporaneous-record standard from the date of the last overt act in the antitrust conspiracy through all phases of FTC/DOJ CID monitoring, AG antitrust concurrent advisory, MDL Panel concurrent advisory, and civil discovery and trial, through the § 16750(a) mandatory treble damages and attorney fee petition, ClaimHour was built for that gap.