In Philippine boardroom warfare, the concept didn’t arrive with Federico “Piki” Lopez. It had an earlier, rougher incarnation in the battle for PLDT, where Antonio “Tonyboy” Cojuangco used a poison pill not simply to fend off raiders, but to make himself the indispensable counterparty in any serious bid for control.
The term is back in circulation because of First Gen Corp., where the Lopez family’s internal feud has dragged a modern version of the tactic into public view. First Gen confirmed in April that its agreements with Enrique Razon Jr.’s Prime Infrastructure contain change-of-management-control provisions that would let Prime Infra force a buyout of First Gen’s hydropower stake at a 25% discount if Piki and his team were removed during a defined period; First Gen added that the gas-plant stake could also be sold at the same discount if the clause were exercised. First Gen said those provisions were requested by Prime Infra and reflected the counterparty’s confidence in Piki Lopez and his management team.
That clause has been attacked by Lopez family rivals as a “poison pill,” and defended by others as more akin to a key-man protection. But long before that argument took hold in the power sector, PLDT had already field-tested the core logic of the device: raise the price of an unwanted move and shift leverage from the market to the incumbent controller. In September 1998, the Wall Street Journal reported that PLDT had adopted a poison-pill plan amid takeover rumors, while contemporaneous reporting said the mechanism was designed to make hostile bids prohibitively expensive.
That distinction matters. A poison pill is rarely just about blocking an acquirer outright. More often, it is about changing the arena of battle. Instead of allowing control to be bought cheaply in the open market, it forces any determined bidder to come to terms with management, the board, or the insider group that controls the key voting architecture. In PLDT’s case, that architecture sat not just in the listed company’s shares, but in Philippine Telecommunications Investment Corp., or PTIC — the private vehicle that held a decisive PLDT block and was controlled by Tonyboy Cojuangco and his allies.
So while the poison pill was formally an anti-takeover shield, its practical effect was to make Tonyboy the gatekeeper. Reports from November 1998 said First Pacific had been negotiating to buy PTIC, then described as controlled by Antonio Cojuangco and Antonio Meer, because PTIC held the bloc that mattered for effective influence at PLDT. One report said First Pacific had already accumulated a strategic stake in PLDT in the market, but still needed the PTIC transaction to convert that foothold into genuine management control.
In that sense, Tonyboy’s poison pill did not eliminate suitors; it channeled them. Eduardo Cojuangco and Gregorio Araneta were both spoken of as potential contenders for PLDT as the company’s defenses came under strain, and Tonyboy himself was reported to be leaning toward Eduardo Cojuangco as the more acceptable suitor. The poison pill, along with the dense PTIC structure behind PLDT, made it difficult for outsiders to simply raid the market and seize the company on price alone. Instead, bidders had to navigate the internal power map that Tonyboy still controlled.
That did not mean he won. By late September 1998, the courts had already thrown uncertainty around PLDT’s poison-pill strategy, with contemporaneous reporting saying the delay in a judicial ruling cast doubt on the company’s ability to fend off unwanted suitors. By late October, the Wall Street Journal was reporting PLDT’s retreat from the poison-pill plan, an important sign that the defenses were weakening before the final control transaction was completed.
But weakening the pill was not the same as bypassing Tonyboy. If anything, it made the remaining control block even more valuable. First Pacific’s own account of the November 24, 1998 takeover shows that the group assembled its position in two parts: a roughly 5.9% direct PLDT stake bought in the market, and an indirect 11.3% interest acquired through the purchase of 52.7% of PTIC, which itself held a major PLDT bloc. That PTIC-linked interest and related rights were acquired from Antonio Cojuangco and his family, Nori Ongsiako and her family, Antonio Meer, and Alfonso Yuchengco.
That is the crucial point for any historical comparison with First Gen. At PLDT, the poison pill did not stop Manny Pangilinan and First Pacific from arriving. What it did was force them into a route where the decisive transaction became a negotiated purchase of the insider-controlled holding structure, not just a brute-force accumulation of listed shares. In other words, if you wanted PLDT, you could not ignore Tonyboy; you had to deal with him — directly or through the PTIC framework he dominated.
The documentation that surfaced later only underscores how negotiated the process became. In a 2002 clarification, First Pacific said its initial PLDT interest in 1998 had been acquired from PTIC shareholders, including the Cojuangco Group, and through purchases on the Philippine Stock Exchange. It also said the agreements included clauses under which the Cojuangco Group waived rights of first offer or refusal as PTIC shareholders, subject to certain conditions. Those are not the papers of a clean hostile rout; they are the paperwork of a negotiated surrender after leverage has shifted.
And once the sale was done, the symbolism was unmistakable. On the same day, First Pacific announced the acquisition of a 17.2% economic interest representing a 27.4% voting interest in PLDT. Manny Pangilinan was appointed President and CEO, while Antonio Cojuangco was moved to Non-executive Chairman. PLDT’s own corporate timeline later described November 24, 1998, as the entry point of First Pacific and the start of a new leadership era.
That is why the PLDT episode still resonates. It was not merely an early Philippine takeover fight. It was a case study in what poison pills actually do when they work — or half-work. They don’t always preserve independence. Sometimes they do something subtler and, for the incumbent, just as valuable: they make the controller the price setter, the gatekeeper, and the indispensable broker of any transfer of power.
Seen that way, Tonyboy Cojuangco’s PLDT poison pill was the ancestor of today’s First Gen clause. The forms are different. First Gen’s provision is a contractual change-of-management-control trigger tied to Piki Lopez’s removal and a discounted exit right for Prime Infra; PLDT’s was a classic anti-takeover defense aimed at hostile control attempts. But the strategic logic is the same: a bid for the asset becomes a negotiation with the incumbent family executive who sits at the center of the control web.
In Philippine corporate history, then, the lineage is clearer than it first appears. Before Piki Lopez’s First Gen poison pill made investors ask whether a management clause could reshape the balance of power in a listed company, Tonyboy Cojuangco had already shown how a poison pill could do something just as potent: force would-be acquirers to stop circling the stock and start negotiating with the man who held the keys.
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Disclaimer: This is for informational purposes and is not investment advice. Figures are taken from company disclosures and exchange data; valuation ratios include the author’s calculations based on cited inputs.
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